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SECTION 23 00 00
COMMERCIAL HVAC SYSTEMS
 
 
Copyright 2016 - 2017 ARCAT, Inc. - All rights reserved
** NOTE TO SPECIFIER ** Allied Commercial; packaged rooftop units, split systems, small splits, unit heaters, industrial furnaces.
This section is based on the products of Allied Commercial, which is located at:
215 Metropolitan Drive
West Columbia, SC 29170
Toll Free: 800-448-5872
Email: ______
Web: www.allied-commerical.com
click Herefor additional information
Located in South Carolina and Arkansas, Allied Commercial builds technologically advanced, solid commercial heating and cooling equipment. Our solutions continue to offer best of everything including: Components and parts that are well designed and laboratory tested for strength and endurance, so every piece of equipment that comes off of our assembly lines upholds our high standards. Easy installation and service, with features like compatibility with most popular curb sizes and convenient utility line locations. Lasting performance and consistent energy efficiency, season after season, even in extreme heat or cold. Our efforts have produced impressive advancements in the industry, such as the Eco-Last(TM) Coil System and Single-Zone Variable Air Volume (VAV) technology.
 
PART 1 GENERAL
 
1.1
SECTION INCLUDES
 
** NOTE TO SPECIFIER ** Delete items below not required for project.
 
A.
Commercial HVAC systems including the following:
1.
Packaged rooftop units. (E-Series) (K-Series) (Z-Series).
2.
Split systems. (T-Series).
3.
Small splits.
4.
Unit heaters.
5.
Industrial furnaces.
1.2
RELATED SECTIONS
 
** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
 
A.
Section 23 05 00 - Common Work Results for HVAC.
B.
Section 26 05 00 - Common Work Results for Electrical.
1.3
REFERENCES
 
** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
 
A.
Air-Conditioning, Heating, and Refrigeration Institute.
1.
AHRI 210/240 - Performance Rating of Unitary Air-Conditioning & Air-Source Heat Pump Equipment.
2.
AHRI 270. - Sound Performance Rating of Outdoor Unitary Equipment.
3.
AHRI 340/360 - Performance Rating of Commercial and Industrial Unitary Air-Conditioning and Heat Pump Equipment.
4.
AHRI 370 - Sound Rating of Large Outdoor Refrigerating and Air Conditioning Equipment.
B.
American Society of Heating, Refrigerating, and Air-Conditioning Engineers
1.
ASHRAE 62.1 - Ventilation for Acceptable Indoor Air Quality.
2.
ASHRAE 90.1 - Energy Standard for Buildings Except Low-Rise Residential Buildings.
C.
ASTM International.
1.
ASTM B117 - Standard Practice for Operating Salt Spray (Fog) Apparatus
D.
Intertek: A Nationally Recognized Testing Laboratory.
1.
ETL listed
E.
Underwriters Laboratory (UL):
1.
Listed products directory.
F.
Underwriters Laboratory Canada (ULC):
1.
Listed products directory.
G.
United States of America Military
1.
Military Specification MIL-DTL-53084A - Primer, Cathodic Electrodeposition, Chemical Agent Resistant.
1.4
SUBMITTALS
A.
Submit under provisions of Section 01 30 00 - Administrative Requirements.
B.
Product Data: Manufacturer's data sheets on each product to be used, including:
1.
Preparation instructions and recommendations.
2.
Storage and handling requirements and recommendations.
3.
Installation methods.
4.
Wind and seismic certifications.
C.
Shop Drawings: Include system components, utility requirements and connections, relationship with adjacent construction. Include required clearances and access for servicing.
1.
Wiring schematics and diagrams for power and control wiring.
D.
Maintenance and operation information and instructions.
1.5
DEFINITIONS
A.
AFUE: Annual Fuel Utilization Efficiency.
B.
IEER: Integrated Energy Efficiency Ratio.
C.
EER: Energy Efficiency Ratio.
D.
SEER: Seasonal Energy Efficiency Ratio.
1.6
QUALITY ASSURANCE
A.
Regulatory Requirements: Comply with requirements of authorities having jurisdiction and applicable codes at the location of the project.
B.
Manufacturer Qualifications: Minimum 5 years' experience manufacturing similar products.
C.
Installer Qualifications: Minimum 2 years' experience installing similar products.
1.7
DELIVERY, STORAGE, AND HANDLING
A.
Deliver and store products in manufacturer's unopened packaging bearing the brand name and manufacturer's identification until ready for installation.
B.
Comply with manufacturer's recommendations. Handle materials to avoid damage.
1.8
PROJECT CONDITIONS
A.
Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's recommended limits.
1.9
WARRANTY
A.
Provide manufacturer's standard limited warranty: ______ years.
1.
Heat exchangers: ______ years.
2.
Compressors: ______ years.
3.
Economizers: ______ years.
PART 2 PRODUCTS
 
2.1
MANUFACTURERS
A.
Acceptable Manufacturer: Allied Commercial, which is located at: 215 Metropolitan Dr.; West Columbia, SC 29170; Toll Free Tel: 800-448-5872; Email: request info (); Web: www.allied-commercial.com
 
** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
 
B.
Substitutions: Not permitted.
C.
Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 - Product Requirements.
 
** NOTE TO SPECIFIER ** The E-Series, Efficiency ratings of up to 12.8 EER, 15.5 IEER, and 18.0 SEER. 3- to 50-Ton gas/electric and electric/electric models. Up to 81% AFUE. Delete if not required.
 
2.2
PACKAGED ROOFTOP UNITS (E-SERIES)
A.
Packaged Rooftop Units: E-Series by Allied Commercial.
 
**NOTE TO SPECIFIER** Delete type not required.
 
1.
LCH - Gas / Electric.
2.
LGH- Electric / Electric.
 
**NOTE TO SPECIFIER** Delete capacities not required.
 
3.
Capacity: 3 Tons.
4.
Capacity: 4 Tons.
5.
Capacity: 5 Tons.
6.
Capacity: 6 Tons.
7.
Capacity: 7.5 Tons.
8.
Capacity: 8.5 Tons.
9.
Capacity: 10 Tons.
10.
Capacity: 12.5 Tons.
11.
Capacity: 13 Tons.
12.
Capacity: 15 Tons.
13.
Capacity: 17.5 Tons.
14.
Capacity: 20 Tons.
15.
Capacity: 25 Tons.
16.
Capacity: 30 Tons.
17.
Capacity: 35 Tons.
18.
Capacity: 40 Tons.
19.
Capacity: 45 Tons.
20.
Capacity: 50 Tons.
B.
Performance requirements:
1.
Must meet or exceed ASHRAE 90.1 minimum standards.
 
**NOTE TO SPECIFIER** Delete if not required.
 
2.
3-5 Ton units:
a.
AHRI 210.
b.
AHRI 240.
 
**NOTE TO SPECIFIER** Delete if not required.
 
3.
6 Ton units:
a.
AHRI 340.
b.
AHRI 360
4.
CSA listed.
5.
ETL listed.
6.
UL listed.
7.
ULC listed.
C.
Cabinet:
1.
Exterior panels: Heavy-gauge galvanized steel with two-layer enamel paint finish.
2.
Perimeter Base Rail: Heavy-gauge galvanized steel.
a.
Forklift slots; on three sides, not directly below condenser coil.
3.
Rigging holes on all four corners.
4.
Raised or flanged edges around duct and power entry openings.
 
**NOTE TO SPECIFIER** "Down flow" is the standard configuration that all E-Series units are shipped.
"Horizontal Flow" is an option for all E-Series models.
 
5.
Return airflow choice: Factory shipped:
a.
Down flow.
b.
Horizontal flow.
 
**NOTE TO SPECIFIER** 3 to 12.5Ton are shipped standard as down flow. Delete subparagraph if not necessary.
 
1)
Convert in field; Horizontal Discharge Kit.
 
**NOTE TO SPECIFIER** 20 to 30 Ton units are shipped either as down flow or horizontal. Delete both subparagraphs if not necessary.
 
2)
Horizontal airflow requires Horizontal Roof Curb.
3)
Horizontal Return Air Panel Kit is also required if converting a down flow configuration into horizontal.
6.
Electrical lines: Brought through base of unit via horizontal knockouts.
 
**NOTE TO SPECIFIER** Add "Gas lines" only if using an E-Series (LG) gas/electric model.
 
7.
Gas lines: Brought through base of unit via horizontal knockouts.
8.
Insulation: Panels adjacent to conditioned air; insulated with non-hygroscopic fiberglass insulation.
a.
Unit base is fully insulated.
1)
Serves as air seal to roof curb.
9.
Access Panels: Compressor, controls, heating areas, blower, air filter, and economizer.
a.
Hinged Access Panels, factory installed: Sealed with quarter-turn latching handles; tight air and water seal.
10.
Condensate Drain Pan: Corrosion resistant double sloped.
 
**NOTE TO SPECIFIER** Stainless steel pan is only available for 20 Ton VAV, 25 Ton High efficiency, 25 Ton VAV, all 30 Ton models.
 
a.
Stainless steel drain pan.
11.
Service Valves.
D.
Cooling System: Capable of operating from 0 to 125 degrees F (-18 to 52 degrees C) without installation of additional controls.
1.
Compressors: Scroll Type, R-410A refrigerant.
a.
Overload protected.
b.
Internal excessive current and temperature protection.
c.
Isolated from condenser and evaporator fan air streams.
d.
Vibration isolation: Mounted on elastomeric grommets.
2.
Thermal Expansion Valve.
3.
High capacity filter/driers.
4.
High pressure switches.
5.
Low pressure switches.
6.
Freezestats.
7.
Crankcase heaters.
E.
Coil Construction: Condensing and evaporator coils.
1.
Copper tube, rippled and lanced aluminum fins mechanically bonded to copper tubes, and factory leak tested.
2.
Evaporator Coils: Balanced port thermal expansion valves.
 
**NOTE TO SPECIFIER** Subparagraph below applies to 3-25-Ton constant air volume models.
 
a.
Compressor circuits on coil: Divided across face of coil and active through coil depth. Freeze protection; pressure and leak tested: 500 psi (3447 kPa).
 
**NOTE TO SPECIFIER** Subparagraph below applies to 20-30-Ton variable air volume models.
 
b.
Compressor circuits on coil: Divided by rows that are active across the entire surface area of the supply air.
 
**NOTE TO SPECIFIER** Subparagraph below is an optional feature.
 
c.
Flexible immersed coating electrodeposited by dry film process:
1)
ASTM B117.
2)
ASTM 1153.
3)
MIL-P-53084.
3.
Condenser Coils:
a.
Eco-last condensing coil: Aluminum lanced fins thermally bonded to aluminum flat tubes and factory leak tested.
 
**NOTE TO SPECIFIER** Subparagraph below is an optional feature.
 
b.
Flexible immersed coating electrodeposited by dry film process:
1)
ASTM B117.
2)
ASTM 1153.
3)
MIL-P-53084.
 
**NOTE TO SPECIFIER** E-Series units with Gas Heating Systems are LG models.
 
F.
Gas Heating System: Induced draft.
1.
Fuel type: Natural gas.
2.
Ignition: Direct spark pilot.
3.
Electronic sensors: Flame.
4.
Switches: Flame rollout, high heat limit, and safety.
a.
Induced draft failure: Operating to altitude of 2000 feet (610m) with no derate to manifold pressure.
5.
Controls: Fan and limit.
6.
Service access: Controls, burners and heat exchanger.
7.
Heat Exchanger: Tubular.
a.
Aluminized steel.
b.
Stainless steel.
8.
Gas piping system tight and free of leaks when pressurized to maximum supply pressure.
9.
Gas Valve: Two-stage, redundant type gas heat valve with manual shutoff.
 
**NOTE TO SPECIFIER** Two stage gas heating, available on 4 to 30 Ton models only.
 
10.
Gas Valve: Single stage gas heating.
11.
Gas Burners: Inshot, aluminized steel.
12.
Gas piping system: Leak free when pressurized to maximum supply pressure.
 
**NOTE TO SPECIFIER** Low NOx applies to 3-6 Ton only.
 
13.
Low NOx.
 
**NOTE TO SPECIFIER** "Field Installed Accessories" are options that can be selected for the E-Series LG Gas/Electric models and are shipped separately and installed in the field.
 
14.
Field Installed Accessories:
a.
Combustion Air Intake Extensions.
b.
Vertical Vent Extension Kit.
c.
LPG/Propane Kit.
d.
Low Temperature Vestibule Heater.
 
**NOTE TO SPECIFIER** The "Electric Heating System" is an option for E-Series (LC), electric/electric models only. The "Electric Heating System" is only available for factory or field installation.
 
G.
Electric Heating System: Electrical resistance heater.
1.
Reset thermal limit protection.
2.
Single point power supply.
3.
Heater Element: Nickel chromium wire.
a.
Individually fused.
4.
Electric heater slides out of unit for service.
5.
Heating Controls:
 
**NOTE TO SPECIFIER** 2 stages of heating control are only available on E-Series (LG) gas/electric models of tonnages 4-30, on two stage units.
 
a.
Support 2 stages of heating control from thermostat or DDC.
b.
Delay time of 30 seconds between low and high heat stages.
H.
Supply Air Fan (Blower): Double inlet type, galvanized steel with forward curved blades.
1.
Statically and dynamically balanced.
2.
Continuous or automatic control for occupied periods.
3.
Motor and Drives:
 
**NOTE TO SPECIFIER** Direct drive ECM motors available on 3-5 Tons only.
 
a.
Thermal overload protected motors with automatic reset.
b.
Direct drive ECM.
 
**NOTE TO SPECIFIER** Subparagraph below applies to 7.5 - 30 Ton only.
 
1)
Single Zone Variable Air Volume (VAV): Factory w/ VFD and phase protection.
 
**NOTE TO SPECIFIER** Subparagraph below applies to 20, 25, and 30 Ton units.
 
2)
Variable Air Volume (VAV): Factory w/VFD.
c.
Belt drive:
1)
Permanently lubricated ball bearings (for belt drive motors).
2)
Adjustable sheaves on belt drive motors for blower speed adjustment.
3)
Optional low and high static motor/drive combinations and optional drive kits.
4)
Auto Blower Belt Tensioner: Factory.
I.
Supply Air Filters: Disposable 2 inch furnished as standard.
1.
High Efficiency Air Filters
a.
2" MERV 13 Filters.
1)
Field installed.
b.
2" MERV 8 Filters.
1)
Field installed.
J.
Condenser Fans: Corrosion resistant propeller type.
1.
Condenser Fan Motor: Direct drive with permanently lubricated ball bearings.
a.
Watertight with thermal overload protection and automatic reset.
b.
Motor mount isolated from fan safety guard.
 
**NOTE TO SPECIFIER** The subparagraph below applies to 3-5 Ton high efficiency models.
 
c.
ECM motors.
 
**NOTE TO SPECIFIER** The subparagraph below applies to 3-5 Ton models.
 
d.
PSC motors.
 
**NOTE TO SPECIFIER** the subparagraph below applies to 6-30 Ton models.
 
e.
Standard efficiency.
K.
Controls:
1.
Unit Controller: Solid state control board to operate unit.
2.
Scrolling digital display.
3.
Push button navigation.
4.
Guided menu setup.
5.
Provide 5 degrees F temperature difference between cooling and heating set points meeting ASHRAE 90.1 Energy Standard.
6.
Display alarms, alarm history and system status.
7.
Component and cooling/heating mode run test capability.
8.
Accept CO2 sensor inputs.
9.
Economizer control.
10.
Blower on/off delay.
11.
2-stage heat/4-stage cool compatible.
12.
Warm-up mode.
13.
DDC compatible.
14.
Indoor air quality input.
15.
Low ambient control down to 0 degrees F.
16.
Component runtime and cycle count data collection.
17.
Blower proving switch strike 3.
 
**NOTE TO SPECIFIER** Phase/voltage protection standard on VAV models and optional on other models.
 
18.
Phase/voltage monitoring/protection.
19.
Real time clock (timestamps).
20.
USB interface with profiles and firmware upgrade capability.
21.
Controls Options:
 
** NOTE TO SPECIFIER ** Delete "Field installed" subparagraphs below if accessories are to be factory installed. Factory installed is implied unless noted otherwise.
 
a.
SCR Electric heat control.
b.
CO2 Sensor: Field installed.
c.
Dirty Filter Switch:
1)
Field installed.
d.
Blower Proving Switch:
1)
Field installed.
e.
Phase/Voltage Monitoring Protection.
f.
BACnet:
1)
Field installed.
g.
LonTalk:
1)
Field installed.
h.
Novar ETM-2051:
1)
Field installed.
i.
Novar LSE.
j.
CPC Direct Interface.
k.
Fresh Air Tempering Sensor:
1)
Field installed.
l.
Smoke detector supply:
1)
Field installed.
m.
Smoke detector return.
1)
Field installed.
L.
Serviceability:
1.
Wiring: Keyed and labeled field connections, color coded and continuously marked wire to identify point-to-point component connections.
a.
Not in contact with hot-gas refrigerant lines or sharp metal edges.
 
** NOTE TO SPECIFIER ** Delete "Field installed" subparagraphs below if accessories are to be factory installed. Factory installed is implied unless noted otherwise.
 
M.
Accessories:
1.
Economizer:
 
**NOTE TO SPECIFIER** Delete one of the following two subparagraphs.
 
a.
Down flow.
b.
Horizontal.
c.
Hoods provided:
1)
Field installed.
d.
Control:
1)
Single Sensible:
a)
Field installed.
2)
Differential Dual Sensible:
a)
Field installed.
3)
Global (field provided sensor): Factory installed.
 
**NOTE TO SPECIFIER** The two enthalpy controls subparagraphs below are not suitable for Title 24 applications.
 
4)
Single Enthalpy:
a)
Field installed.
5)
Differential Dual Enthalpy:
a)
Field installed.
 
**NOTE TO SPECIFIER** Delete if not required.
 
2.
High Performance Economizer:
a.
Dampers: Gear driven.
1)
Plug-in connections to unit.
2)
Nylon bearings.
3)
Enhanced neoprene blade edge seals.
4)
Flexible stainless steel jam seals.
5)
High torque, 24 V fully modulating spring return motor.
6)
Minimum damper position: Adjustable.
7)
Damper linkage and shafts: Plated.
b.
Control module:
1)
Inputs and outputs based on parameter settings.
2)
Automatic sensor detection.
3)
Alarm message display.
4)
Non-volatile memory: Maintains setting during power failure.
5)
Keypad: Setting parameters.
3.
Outdoor Air Damper: Motorized.
a.
Field installed.
4.
Outdoor Air Damper: Manual; Hood provided.
a.
Field installed.
 
**NOTE TO SPECIFIER** the subparagraph below applies to 3-25-Ton only.
 
5.
Dehumidification system with secondary coil: Factory installed.
6.
Power exhaust fan:
a.
Field installed.
7.
Roof curb: Field installed.
 
**NOTE TO SPECIFIER** Barometric relief damper is included with field installed economizer.
 
8.
Barometric relief damper.
a.
Down flow; hoods provided, field installed.
b.
Horizontal; hoods provided, field installed.
9.
Energy Recovery System: Field installed.
10.
Ceiling Diffuser: Field installed.
a.
Flush.
b.
Step down.
11.
Transition: Field installed.
a.
Supply.
b.
Return.
12.
UVC lamps:
a.
Field installed.
13.
Coil Guards: Field installed.
14.
Hail Guards: Field installed.
15.
Disconnect Switch:
a.
Field installed.
16.
Condensate drain trap.
a.
Plastic:
1)
Field installed.
b.
Copper:
1)
Field installed.
17.
GFCI Service Outlets (field wired):
a.
Field installed.
 
**NOTE TO SPECIFIER** Available on 13 to 25 ton models only.
 
18.
GFCI Service Outlets; unit powered: Factory installed.
19.
HACR Circuit breaker: Factory installed.
20.
UVC Germicidal lamps.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
2.3
PACKAGED ROOFTOP UNITS (E-SERIES, High Efficiency)
A.
Packaged Rooftop Units: E-Series by Allied Commercial.
 
**NOTE TO SPECIFIER** Delete type not required.
 
1.
LCH -Electric / Electric.
2.
LGH- Gas / Electric.
 
**NOTE TO SPECIFIER** Delete capacities not required.
 
3.
Capacity: 3 Tons.
4.
Capacity: 4 Tons.
5.
Capacity: 5 Tons.
6.
Capacity: 6 Tons.
7.
Capacity: 7.5 Tons.
8.
Capacity: 8.5 Tons.
9.
Capacity: 10 Tons.
10.
Capacity: 12.5 Tons.
11.
Capacity: 13 Tons.
12.
Capacity: 15 Tons.
13.
Capacity: 17.5 Tons.
14.
Capacity: 20 Tons.
15.
Capacity: 25 Tons.
16.
Capacity: 30 Tons.
B.
Cabinet:
1.
Exterior panels: Heavy-gauge galvanized steel with two layer enamel paint finish.
2.
Perimeter Base Rail: Heavy-gauge galvanized steel.
a.
Forklift slots; on three sides, not directly below condenser coil.
3.
Rigging holes on all four corners.
4.
Raised or flanged edges around duct and power entry openings.
 
**NOTE TO SPECIFIER** "Down flow" is the standard configuration that all E-Series units are shipped.
"Horizontal Flow" is an option for all E-Series models.
 
5.
Return airflow choice: Factory shipped:
a.
Down flow.
b.
Horizontal flow.
 
**NOTE TO SPECIFIER** 3 to 12.5Ton are shipped standard as down flow. Delete subparagraph if not necessary.
 
1)
Convert in field; Horizontal Discharge Kit.
 
**NOTE TO SPECIFIER** 20 to 30 Ton units are shipped either as down flow or horizontal. Delete both subparagraphs if not necessary.
 
2)
Horizontal airflow requires Horizontal Roof Curb.
3)
Horizontal Return Air Panel Kit is also required if converting a down flow configuration into horizontal.
6.
Electrical lines: Brought through base of unit via horizontal knockouts.
 
**NOTE TO SPECIFIER** Add "Gas lines" only if using an E-Series (LG) gas/electric model.
 
7.
Gas lines: Brought through base of unit via horizontal knockouts.
8.
Insulation: Panels adjacent to conditioned air; insulated with non-hygroscopic fiberglass insulation.
a.
Unit base is fully insulated.
1)
Serves as air seal to roof curb.
9.
Access Panels: Compressor, controls, heating areas, blower, air filter, and economizer.
a.
Hinged Access Panels, factory installed: Sealed with quarter-turn latching handles; tight air and water seal.
10.
Condensate Drain Pan: Corrosion resistant double sloped.
 
**NOTE TO SPECIFIER** Stainless steel pan is only available for 20 Ton VAV, 25 Ton High efficiency, 25 Ton VAV, all 30 Ton models.
 
a.
Stainless steel drain pan.
11.
Service Valves.
C.
Cooling System: Capable of operating from 0 to 125 degrees F (-18 to 52 degrees C) without installation of additional controls.
1.
Compressors: Scroll Type, R-410A refrigerant.
a.
Overload protected.
b.
Internal excessive current and temperature protection.
c.
Isolated from condenser and evaporator fan air streams.
d.
Vibration isolation: Mounted on rubber mounts.
2.
Thermal Expansion Valve.
3.
High capacity filter/driers.
4.
High pressure switches.
5.
Low pressure switches.
6.
Freezestats.
7.
Crankcase heaters.
D.
Coil Construction: Condensing and evaporator coils.
 
**NOTE TO SPECIFIER** First paragraph below is for tube and fin condensing/evaporator coil. Second paragraph below is for Environ condensing coil. Delete tube construction not required.
 
1.
Copper tube, rippled and lanced aluminum fins mechanically bonded to copper tubes, and factory leak tested.
2.
Aluminum tube, rippled and lanced aluminum fins mechanically bonded to aluminum flat tubes, and factory leak tested.
3.
Evaporator Coils: Balanced port thermal expansion valves.
 
**NOTE TO SPECIFIER** Subparagraph below applies to 3-25-Ton constant air volume models.
 
a.
Compressor circuits on coil: Divided across face of coil and active through coil depth. Freeze protection; pressure and leak tested: 500 psi (3447 kPa).
 
**NOTE TO SPECIFIER** Subparagraph below applies to 20-30-Ton variable air volume models.
 
b.
Compressor circuits on coil: Divided by rows that are active across the entire surface area of the supply air.
 
**NOTE TO SPECIFIER** Subparagraph below is an optional feature.
 
c.
Flexible immersed coating electrodeposited by dry film process:
1)
ASTM B117.
2)
ASTM 1153.
3)
MIL-P-53084.
4.
Condenser Coils:
a.
Eco-last condensing coil: Aluminum lanced fins thermally bonded to aluminum flat tubes and factory leak tested.
 
**NOTE TO SPECIFIER** Subparagraph below is an optional feature.
 
b.
Flexible immersed coating electrodeposited by dry film process:
1)
ASTM B117.
2)
ASTM 1153.
3)
MIL-P-53084.
 
**NOTE TO SPECIFIER** E-Series units with Gas Heating Systems are LG models.
 
E.
Gas Heating System: Induced draft.
1.
Fuel type: Natural gas.
2.
Ignition: Direct spark pilot.
3.
Electronic sensors: Flame.
4.
Switches: Flame rollout, high heat limit, and safety.
a.
Induced draft failure: Operating to altitude of 2000 feet (610m) with no derate to manifold pressure.
5.
Controls: Fan and limit.
6.
Service access: Controls, burners and heat exchanger.
7.
Heat Exchanger: Tubular.
a.
Aluminized steel.
b.
Stainless steel.
8.
Gas piping system tight and free of leaks when pressurized to maximum supply pressure.
9.
Gas Valve: Redundant type gas heat valve with manual shutoff.
 
**NOTE TO SPECIFIER** Two stage gas heating, available on 4 to 30 Ton models only. Delete option not required.
 
10.
Gas Valve: Single stage gas heating.
11.
Gas Valve: Two stage gas heating.
12.
Gas Burners: Inshot, aluminized steel.
 
**NOTE TO SPECIFIER** Low NOx applies to 3-6 Ton only.
 
13.
Low NOx.
 
**NOTE TO SPECIFIER** "Field Installed Accessories" are options that can be selected for the E-Series LG Gas/Electric models and are shipped separately and installed in the field. Delete accessories not required.
 
14.
Field Installed Accessories:
a.
Combustion Air Intake Extensions.
b.
Vertical Vent Extension Kit.
c.
LPG/Propane Kit.
d.
Low Temperature Vestibule Heater.
 
**NOTE TO SPECIFIER** The "Electric Heating System" is an option for E-Series (LC), electric/electric models only. The "Electric Heating System" is only available for factory or field installation. Delete if not required.
 
F.
Electric Heating System: Electrical resistance heater.
1.
Reset thermal limit protection.
2.
Single point power supply.
3.
Heater Element: Nickel chromium wire.
a.
Individually fused.
4.
Electric heater slides out of unit for service.
5.
Heating Controls:
 
**NOTE TO SPECIFIER** 2 stages of heating control are only available on E-Series (LG) gas/electric models of tonnages 4-30, on two stage units.
 
a.
Support 2 stages of heating control from thermostat or DDC.
b.
Delay time of 30 seconds between low and high heat stages.
G.
Supply Air Fan (Blower): Double inlet type, galvanized steel with forward curved blades.
1.
Statically and dynamically balanced.
2.
Continuous or automatic control for occupied periods.
3.
Motor and Drives:
 
**NOTE TO SPECIFIER** Direct drive ECM motors available on 3-5 Tons only.
 
a.
Thermal overload protected motors with automatic reset.
b.
Direct drive ECM.
 
**NOTE TO SPECIFIER** Subparagraph below applies to 7.5 - 30 Ton only.
 
1)
Single Zone Variable Air Volume (VAV): Factory w/ VFD and phase protection.
 
**NOTE TO SPECIFIER** Subparagraph below applies to 20, 25, and 30 Ton units.
 
2)
Variable Air Volume (VAV): Factory w/VFD.
c.
Belt drive:
1)
Permanently lubricated ball bearings.
2)
Adjustable sheaves for blower speed adjustment.
3)
Optional low and high static motor/drive combinations and optional drive kits.
4)
Auto Blower Belt Tensioner: Factory.
H.
Supply Air Filters: Disposable 2 inch furnished as standard.
1.
High Efficiency Air Filters
a.
2" MERV 13 Filters.
 
**NOTE TO SPECIFIER** Delete installation method not required.
 
1)
Field installed.
2)
Factory installed.
b.
2" MERV 8 Filters.
 
**NOTE TO SPECIFIER** Subparagraph below applies to 20, 25, and 30 Ton units.
 
1)
Field installed.
2)
Factory installed.
I.
Condenser Fans: Corrosion resistant propeller type.
1.
Condenser Fan Motor: Direct drive with permanently lubricated ball bearings.
a.
Watertight with thermal overload protection and automatic reset.
b.
Motor mount isolated from fan safety guard.
 
**NOTE TO SPECIFIER** The subparagraph below applies to 3-5 Ton high efficiency models.
 
c.
ECM motors.
 
**NOTE TO SPECIFIER** The subparagraph below applies to 3-5 Ton models.
 
d.
PSC motors.
 
**NOTE TO SPECIFIER** the subparagraph below applies to 6-30 Ton models.
 
e.
Standard efficiency.
J.
Controls:
1.
Unit Controller: Solid state control board to operate unit.
2.
Scrolling digital display.
3.
Push button navigation.
4.
Guided menu setup.
5.
Provide 5 degrees F temperature difference between cooling and heating set points meeting ASHRAE 90.1 Energy Standard.
6.
Display alarms, alarm history and system status.
7.
Component and cooling/heating mode run test capability.
8.
Accept CO2 sensor inputs.
9.
Economizer control.
10.
Blower on/off delay.
11.
2-stage heat/4-stage cool compatible.
12.
Warm-up mode.
13.
DDC compatible.
14.
Indoor air quality input.
15.
Low ambient control down to 0 degrees F.
16.
Component runtime and cycle count data collection.
17.
Blower proving switch strike 3.
 
**NOTE TO SPECIFIER** Phase/voltage protection standard on VAV models and optional on other models.
 
18.
Phase/voltage monitoring/protection.
19.
Real time clock (timestamps).
20.
USB interface with profiles and firmware upgrade capability.
21.
Economizer Fault Detection and Diagnostics:
a.
CO2 sensor error.
b.
Outside air temperature sensor error.
c.
Discharge air sensor error.
d.
Actuator over voltage error.
e.
Actuator under voltage error.
22.
Controls Options:
 
** NOTE TO SPECIFIER ** Delete "Field installed" subparagraphs below if accessories are to be factory installed. Factory installed is implied unless noted otherwise.
 
a.
CO2 Sensor: Field installed.
b.
Dirty Filter Switch:
1)
Field installed.
c.
Blower Proving Switch:
1)
Field installed.
d.
Phase/Voltage Monitoring Protection.
e.
BACnet:
1)
Field installed.
f.
LonTalk:
1)
Field installed.
g.
Novar ETM-2051:
1)
Field installed.
h.
Novar LSE.
i.
CPC Direct Interface.
j.
Fresh Air Tempering Sensor:
1)
Field installed.
k.
Smoke detector supply:
1)
Field installed.
l.
Smoke detector return.
1)
Field installed.
m.
Supply air control.
1)
5 adjustable airflow settings.
2)
Auto-calibration.
3)
Supply airflow CFM & motor RPM/torque monitoring.
4)
Low supply CFM & no airflow diagnostics.
5)
Customizable alarms.
n.
Ventilation air control.
1)
Ventilation CFM.
2)
Auto-calibration.
3)
Dynamic damper control.
4)
Ventilation airflow CFM and percent outside air monitoring.
5)
Low/High ventilation CFM percent free cooling fault diagnostics.
6)
Customizable alarms.
K.
Serviceability:
1.
Wiring: Keyed and labeled field connections, color coded and continuously marked wire to identify point-to-point component connections.
a.
Not in contact with hot-gas refrigerant lines or sharp metal edges.
 
** NOTE TO SPECIFIER ** Delete "Field installed" subparagraphs below if accessories are to be factory installed. Factory installed is implied unless noted otherwise.
 
L.
Accessories:
1.
Economizer:
 
**NOTE TO SPECIFIER** Delete one of the following two subparagraphs.
 
a.
Down flow.
b.
Horizontal.
c.
Hoods provided:
1)
Field installed.
d.
Outside air damper maximum leakage rate: 4 CFM/sq.ft. at 1 inch w.g.
e.
Return air maximum leakage rate: 4 CFM/sq.ft. at 1 inch w.g.
f.
Damper reliability: 60,000 cycles minimum.
g.
Control:
1)
Single Sensible: Field installed.
2)
Differential Dual Sensible:
a)
Field installed.
3)
Differential Sensible:
a)
Field installed.
4)
Global (field provided sensor).
 
**NOTE TO SPECIFIER** The two enthalpy controls subparagraphs below are not suitable for Title 24 applications.
 
5)
Single Enthalpy:
a)
Field installed.
6)
Differential Dual Enthalpy:
a)
Field installed.
 
**NOTE TO SPECIFIER** Delete if not required.
 
h.
High Performance Economizer.
2.
Outdoor Air Damper: Motorized.
a.
Field installed.
3.
Outdoor Air Damper: Manual; Hood provided.
a.
Field installed.
 
**NOTE TO SPECIFIER** the subparagraph below applies to 3-25-Ton only.
 
4.
Dehumidification system with secondary coil: Factory installed.
5.
Power exhaust fan:
a.
Field installed.
6.
Roof curb: Field installed.
 
**NOTE TO SPECIFIER** Barometric relief damper is included with field installed economizer.
 
7.
Barometric relief damper.
a.
Down flow; hoods provided, field installed.
b.
Horizontal; hoods provided, field installed.
8.
Energy Recovery System: Field installed.
9.
Ceiling Diffuser: Field installed.
a.
Flush.
b.
Step down.
10.
Transition: Field installed.
a.
Supply.
b.
Return.
11.
UVC lamps:
a.
Field installed.
12.
Coil Guards: Field installed.
13.
Hail Guards: Field installed.
14.
Disconnect Switch:
a.
Field installed.
15.
Condensate drain trap.
a.
Plastic:
1)
Field installed.
b.
Copper:
1)
Field installed.
16.
GFCI Service Outlets (field wired):
a.
Field installed.
 
**NOTE TO SPECIFIER** Available on 13 to 25 ton models only.
 
17.
GFCI Service Outlets; unit powered: Factory installed.
18.
HACR Circuit breaker: Factory installed.
 
** NOTE TO SPECIFIER ** The K-Series, Up to 14.0 SEER, 14.5 IEER and 12.7 EER, 2- to 25-Ton gas/electric, electric/electric and heat pump models, standard- and high-efficiency units available. Delete if not required.
 
2.4
PACKAGED ROOFTOP UNITS (K-SERIES)
A.
Packaged Rooftop Units: K-Series by Allied Commercial:
 
** NOTE TO SPECIFIER ** Delete types and capacities not required.
 
1.
KCA / KCB - Electric / Electric.
a.
Capacity: 2 Ton.
b.
Capacity: 2.5 Ton.
c.
Capacity: 3 Ton.
d.
Capacity: 4 Ton.
e.
Capacity: 5 Ton.
f.
Capacity: 6 Ton.
g.
Capacity: 7.5 Ton.
h.
Capacity: 8.5 Ton.
i.
Capacity: 10 Ton.
j.
Capacity: 12.5 Ton.
k.
Capacity: 15 Ton.
l.
Capacity: 17.5 Ton.
m.
Capacity: 20 Ton.
n.
Capacity: 25 Ton.
2.
KGA / KGB - Gas / Electric.
a.
Capacity: 2 Ton.
b.
Capacity: 2.5 Ton.
c.
Capacity: 3 Ton.
d.
Capacity: 4 Ton.
e.
Capacity: 5 Ton.
f.
Capacity: 6 Ton.
g.
Capacity: 7.5 Ton.
h.
Capacity: 8.5 Ton.
i.
Capacity: 10 Ton.
j.
Capacity: 12.5 Ton.
k.
Capacity: 15 Ton.
l.
Capacity: 17.5 Ton.
m.
Capacity: 20 Ton.
n.
Capacity: 25 Ton.
3.
KHA / KHB - Heat Pump.
a.
Capacity: 2 Ton.
b.
Capacity: 2.5 Ton.
c.
Capacity: 3 Ton.
d.
Capacity: 4 Ton.
e.
Capacity: 5 Ton.
f.
Capacity: 6 Ton.
g.
Capacity: 7.5 Ton.
h.
Capacity: 8.5 Ton.
i.
Capacity: 10 Ton.
j.
Capacity: 12.5 Ton.
k.
Capacity: 15 Ton.
l.
Capacity: 20 Ton.
4.
KCA - High Efficiency.
a.
Capacity: 6 Ton.
b.
Capacity: 7.5 Ton.
c.
Capacity: 8.5 Ton.
d.
Capacity: 10 Ton.
e.
Capacity: 13 Ton.
f.
Capacity: 15 Ton.
g.
Capacity: 17.5 Ton.
h.
Capacity: 20 Ton.
i.
Capacity: 25 Ton.
5.
KGA - High Efficiency.
a.
Capacity: 6 Ton.
b.
Capacity: 7.5 Ton.
c.
Capacity: 8.5 Ton.
d.
Capacity: 10 Ton.
e.
Capacity: 13 Ton.
f.
Capacity: 15 Ton.
g.
Capacity: 17.5 Ton.
h.
Capacity: 20 Ton.
i.
Capacity: 25 Ton.
6.
KH/DB - High Efficiency.
a.
Capacity: 2 Ton.
b.
Capacity: 3 Ton.
c.
Capacity: 4 Ton.
d.
Capacity: 5 Ton.
e.
Capacity: 7.5 Ton.
f.
Capacity: 8.5 Ton.
g.
Capacity: 10 Ton.
B.
Performance requirements:
1.
Must meet or exceed ASHRAE 90.1 minimum standards.
 
**NOTE TO SPECIFIER** Delete if not required.
 
2.
3-5 Ton units:
a.
AHRI 210.
b.
AHRI 240.
 
**NOTE TO SPECIFIER** Delete if not required.
 
3.
6 Ton units:
a.
AHRI 340.
b.
AHRI 360
4.
CSA listed.
5.
ETL listed
6.
UL listed.
7.
ULC listed.
C.
Cabinet:
1.
Exterior panels: Heavy-gauge galvanized steel with two-layer enamel paint finish
2.
Perimeter Base Rail: Heavy gauge galvanized steel.
a.
Forklift slots; on three sides, not directly below condenser coil.
3.
Rigging holes on all four corners
4.
Raised or flanged edges around duct and power entry openings.
 
**NOTE TO SPECIFIER** "Down flow" is the standard configuration that all K-Series units are shipped.
"Horizontal Flow" is an option for all K-Series models.
 
5.
Return airflow choice: Factory shipped:
a.
2 to 12.5 Ton units:
b.
Down flow.
c.
Horizontal flow.
 
**NOTE TO SPECIFIER** 2 to 12.5 Ton are shipped standard as down flow. Delete subparagraph if not necessary.
 
1)
Convert in field; Horizontal Discharge Kit.
 
**NOTE TO SPECIFIER** 13 to 25 Ton units are shipped either as down flow or horizontal. Delete both subparagraphs if not necessary.
 
2)
Horizontal airflow requires Horizontal Roof Curb.
3)
Horizontal Return Air Panel Kit is also required if converting a down flow configuration into horizontal.
6.
Electrical lines: Brought through base of unit via horizontal knockouts.
 
**NOTE TO SPECIFIER** Add "Gas lines" only if using an E-Series (LG) gas/electric model.
 
7.
Gas lines: Brought through base of unit via horizontal knockouts.
8.
Insulation: Panels adjacent to conditioned air; insulated with non-hygroscopic fiberglass insulation.
a.
Unit base is fully insulated.
1)
Serves as air seal to roof curb.
9.
Access Panels: Compressor, controls, heating areas, blower, air filter, and economizer.
a.
Hinged Access Panels - Factory installed: sealed with quarter-turn latching handles and tight air and water seal.
10.
Corrosion Protection:
a.
MIL-P-53084.
b.
ASTM B117.
c.
ASTM 1153.
d.
MIL-P-53084.
11.
GFI Service Outlets (field wired).
12.
Disconnect Switch.
 
**NOTE TO SPECIFIER** Subparagraph below applies to KG models.
 
a.
Up to 80 amps.
 
**NOTE TO SPECIFIER** Subparagraph below applies to KC models.
 
b.
Up to 150 amps.
 
** NOTE TO SPECIFIER ** Of the selections below, Coil Guards Hail Guards, only one can be selected. Delete one of them.
 
13.
Hail Guards - Field installed.
14.
Coil Guards - Field installed.
 
** NOTE TO SPECIFIER ** Following two options are for K-Series 7.5 to 12.5-Ton models only.
 
15.
Horizontal Discharge Kit.
16.
Return Air Adaptor Plate.
 
** NOTE TO SPECIFIER ** Following option is for K-Series 13 to 25-Ton models only.
 
17.
Horizontal Return Air Panel Kit.
D.
Cooling System: Capable of operating from 30 to 125 degrees F (-1 to 52 degrees C) without installation of additional controls.
1.
Compressors: Scroll Type, R-410A refrigerant.
a.
Overload Protected.
b.
Internal excessive current and temperature protection.
c.
Isolated from condenser and evaporator fan air streams.
d.
Vibration isolation: Mounted on elastomeric grommets.
2.
Thermal Expansion Valve.
3.
High capacity filter/driers.
4.
High pressure switches.
5.
Freezestats.
 
** NOTE TO SPECIFIER ** Include following 2 articles for K-Series (KH) packaged heat pumps models.
 
6.
Reversing Valves: Four-way interchange reversing valve.
7.
Defrost Control.
 
** NOTE TO SPECIFIER ** Crankcase heater is standard feature on 072, 090, 150, 180, 210, 240 and 300 KC models only, and it is a field-installed option on 024, 060, 092, 102 and 120 KC models.
 
8.
Crankcase heaters.
E.
Coil Construction: Condensing and evaporator coils, silver soldered.
1.
Copper tube, rippled-edge aluminum fins, flared shoulder tubing connections, and factory leak tested.
2.
Evaporator Coils: Balanced port thermal expansion valves,
a.
Compressor circuits on coil: Divided across face of coil and active through coil depth. Freeze protection; pressure and leak tested: 500 psi (3447 kPa).
 
**NOTE TO SPECIFIER** Subparagraph below is an optional feature.
 
b.
Flexible immersed coating electrodeposited by dry film process:
1)
ASTM B117.
2)
ASTM 1153.
3)
MIL-P-53084.
3.
Condenser Coils:
1)
K-Series 7.5 to 12.5-ton: Single formed coil.
2)
K-Series 2 to 7.5-ton: Two independent coils.
3)
K-Series 13 to 25-ton: Angled, slab design.
4.
Condensate Drain Pan: Plastic, sloped meeting ASHRAE 62.1.
a.
Side or bottom drain connections.
 
** NOTE TO SPECIFIER ** Following option is for K-Series 2 to 12.5-Ton models only.
 
b.
Reversible to allow connection at back of unit.
5.
Outdoor coil fan motors: Shaft up, wire basket guard; thermal overload protected.
 
** NOTE TO SPECIFIER ** K-Series 2 to 4-Ton models have sleeve Bearings; all other models have ball Bearings. Delete one of the following two subparagraphs that do not apply.
 
a.
Permanently lubricated Ball bearings.
b.
Permanently lubricated sleeve bearings.
6.
Outdoor coil fans: PVC coated, furnished fan guard.
 
** NOTE TO SPECIFIER ** Followings are field-installed options/accessories for K-Series models.
 
7.
Condensate Drain Trap: available in copper or PVC.
8.
Drain Pan Overflow Switch.
9.
Low Ambient Kit.
 
** NOTE TO SPECIFIER ** K-Series units with Gas Heating Systems are KG models.
 
F.
Gas Heating System: Induced draft.
1.
Fuel type: Natural gas.
2.
Ignition: Direct spark pilot.
3.
Electronic sensors: Flame.
4.
Switches: Flame rollout, High heat limit, and safety.
a.
Induced draft failure: Operating to altitude of 2000 feet (610m) with no derate to manifold pressure.
5.
Controls: Fan and limit.
6.
Service access: Controls, burners and heat exchanger.
7.
Heat Exchanger: Tubular.
a.
Aluminized steel.
b.
Stainless steel.
8.
Gas piping system tight and free of leaks when pressurized to maximum supply pressure.
9.
Gas Valve: Two-stage, redundant type gas heat valve with manual shutoff.
10.
Gas Valve: Single-stage.
11.
Gas Burners: Inshot, aluminized steel.
12.
Low NOx.
 
** NOTE TO SPECIFIER ** "Field Installed Accessories" are options that can be selected for the K-Series KG Gas/Electric models and are shipped separately and installed in the field.
 
13.
Field Installed Accessories:
a.
Combustion Air Intake Extensions.
b.
Vertical Vent Extension Kit.
c.
LPG/Propane Kit.
d.
Low Temperature Vestibule Heater.
 
** NOTE TO SPECIFIER ** The "Electric Heating System" is an option for K-Series (KH), heat pump, and K-Series (KC), electric/electric models only. The "Electric Heating System" is only available for field installation.
 
G.
Electric Heating System: Electrical resistance heater.
 
** NOTE TO SPECIFIER ** In factory installed delete subparagraph below
 
1.
Field installed.
2.
Fuse Block.
 
** NOTE TO SPECIFIER ** In factory installed delete subparagraph below
 
a.
Field Installed.
3.
Reset thermal limit protection.
4.
Single point power supply
5.
Heater Element: Nickel chromium wire.
a.
Individually fused.
6.
Electric heater slides out of unit for service.
7.
Heating Controls:
 
** NOTE TO SPECIFIER ** 2 stages of heating control are only available on K-Series (KG) gas/electric models of tonnages 4-6, on two stage units
 
a.
Support 2 stages of heating control from thermostat or DDC.
b.
With delay time of 30 seconds between low and high heat stages.
H.
Supply Air Fan (Blower): Galvanized steel with forward curved blades.
 
** NOTE TO SPECIFIER ** Following blower options are available on K-Series 7.5 to 25-Ton models only.
 
1.
Constant Air Volume(CAV).
2.
VAV (Single Zone Variable Air Volume).
3.
Wheel: Balanced, statically and dynamically.
4.
Bearings: Ball bearings
5.
Adjustable pulley for speed change.
6.
Blower assembly slides out of unit for servicing.
 
** NOTE TO SPECIFIER ** Belt drive motors are offered on all models; Direct drive motors are offered on K-Series 2 to 5-Ton models only.
 
7.
Motor: Overload protected.
a.
Direct drive: Sleeve bearings.
b.
Belt drive: Ball bearings.
I.
Supply Air Filters: Disposable 2 inch furnished as standard. Field installed.
1.
2" MERV 13 Filters.
2.
2" MERV 8 Filters.
J.
Controls:
1.
Unit Control: 24V transformer (secondary) with built in circuit breaker protection.
2.
Heat/Cool Staging: 2 heat/2 cool staging with third party DDC controls or thermostat.
3.
Low voltage terminal block.
4.
Night setback mode.
5.
Controls Options:
a.
Smoke detector supply:
 
** NOTE TO SPECIFIER ** If detectors are factory installed delete subparagraph below.
 
1)
Field installed.
b.
Smoke detector return:
 
** NOTE TO SPECIFIER ** If detectors are factory installed delete subparagraph below.
 
1)
Field installed.
K.
Serviceability:
1.
Wiring: Keyed and labeled field connections, color coded and continuously marked wire to identify point-to-point component connections.
a.
Not in contact with hot-gas refrigerant lines or sharp metal edges.
2.
Electrical Plugs.
3.
Access Panels.
4.
Blower Access.
5.
Technical Expansion Valve Access.
6.
Coil Cleaning.
7.
Standard Components.
8.
Compressor Compartment
 
** NOTE TO SPECIFIER ** Delete "Field installed" subparagraphs below if accessories are to be factory installed. Factory installed is implied unless noted otherwise.
 
L.
Accessories:
1.
Economizer:
 
** NOTE TO SPECIFIER ** Delete one of the following two subparagraphs.
 
a.
Down flow.
b.
Horizontal:
c.
Hoods provided:
1)
Field installed.
d.
Control:
1)
Global (field provided sensor): Factory.
2)
Single Enthalpy:
a)
Field installed.
3)
Differential Dual Enthalpy:
a)
Field installed.
 
**NOTE TO SPECIFIER** Delete if not required.
 
2.
High Performance Economizer:
a.
Dampers: Gear driven.
1)
Plug-in connections to unit.
2)
Nylon bearings.
3)
Enhanced neoprene blade edge seals.
4)
Flexible stainless steel jam seals.
5)
High torque, 24 V fully modulating spring return motor.
6)
Minimum damper position: Adjustable.
7)
Damper linkage and shafts: Plated
b.
Control module:
1)
Inputs and outputs based on parameter settings.
2)
Automatic sensor detection.
3)
Alarm message display.
4)
Non-volatile memory: Maintains setting during power failure.
5)
Keypad: Setting parameters.
3.
Outdoor Air Damper: Hood provided.
 
**NOTE TO SPECIFIER** Barometric relief damper is included with field installed economizer.
 
a.
Down flow"
1)
Field installed.
b.
Horizontal:
1)
Field installed.
4.
Power exhaust fan:
a.
Field installed.
5.
Roof curb:
 
**NOTE TO SPECIFIER** Barometric relief damper is included with field installed economizer.
 
a.
Down flow:
1)
Field installed.
b.
Horizontal:
1)
Field installed.
 
** NOTE TO SPECIFIER ** Barometric relief damper is included with field installed economizer.
 
6.
Barometric relief damper: Hoods provided.
 
**NOTE TO SPECIFIER** Barometric relief damper is included with field installed economizer.
 
a.
Down flow:
1)
Field installed.
b.
Horizontal:
1)
Field installed.
7.
Energy Recovery System: Field installed.
8.
Ceiling Diffuser: Field installed.
a.
Flush.
b.
Step down.
9.
Transition: Field installed.
a.
Supply.
b.
Return.
10.
UVC lamps:
a.
Field installed.
11.
UVC Germicidal lamps:
12.
Indoor Air Quality (CO2) Sensors.
13.
Coil Guards:
a.
Field installed.
14.
Hail Guards:
a.
Field installed.
15.
Disconnect Switch:
a.
Field installed.
16.
Condensate drain trap"
a.
Plastic:
1)
Field installed.
b.
Copper:
1)
Field installed.
17.
GFCI Service Outlets (field wired)
a.
Field installed
18.
VFD Manual Bypass Kit: available on units equipped with VAV option.
 
** NOTE TO SPECIFIER ** The Z-Series, up to 14.0 SEER, 13.2 IEER and 11.7 EER, 3- to 12.5-ton gas/electric and electric/electric models and 3- to 10-ton heat pump models available, industry standard design and footprint. Delete if not required.
 
2.5
PACKAGED ROOFTOP UNITS (Z-SERIES)
A.
Packaged Rooftop Units: Z-Series by Allied Commercial.
 
**NOTE TO SPECIFIER** Delete types not required.
 
1.
ZGA / ZGB - Gas / Electric.
2.
ZCA / ZCB - Electric / Electric.
3.
ZHA / ZHB - Heat Pump.
 
**NOTE TO SPECIFIER** Delete capacities not required.
 
4.
Capacity: 3 Ton.
5.
Capacity: 4 Ton.
6.
Capacity: 5 Ton.
7.
Capacity: 6 Ton.
8.
Capacity: 7.5 Ton.
9.
Capacity: 8.5 Ton.
10.
Capacity: 10 Ton.
11.
Capacity: 12.5 Ton.
B.
Performance requirements:
1.
Must meet or exceed ASHRAE 90.1-2010 minimum standards.
2.
3-5 Ton units:
a.
AHRI 210.
b.
AHRI 240.
3.
6 Ton units:
a.
AHRI 340.
b.
AHRI 360
4.
CSA listed.
5.
UL listed.
6.
ULC listed.
C.
Cabinet:
1.
Exterior panels: Heavy-gauge galvanized steel with two-layer enamel paint finish
2.
Perimeter Base Rail: Heavy gauge galvanized steel.
a.
Forklift slots; on three sides, not directly below condenser coil.
3.
Rigging holes on all four corners.
4.
Raised or flanged edges around duct and power entry openings.
 
**NOTE TO SPECIFIER** "Downflow" is the standard configuration that all Z-Series units are shipped. "Horizontal Flow" is an option for all Z-Series models.
 
5.
Return Airflow Choice: Down flow; factory shipped.
a.
Convertible in field to horizontal flow.
6.
Electrical lines: Brought through base of unit via horizontal knockouts.
 
**NOTE TO SPECIFIER** Add "Gas lines" only if using an E-Series (LG) gas/electric model.
 
7.
Gas lines: Brought through base of unit via horizontal knockouts.
8.
Insulation: Panels adjacent to conditioned air; insulated with non-hygroscopic fiberglass insulation.
9.
Access Panels: Compressor, controls, heating areas, blower, air filter, and economizer.
a.
Hinged access panel; condenser section.
10.
Corrosion Protection:
a.
MIL-P-53084.
b.
ASTM B117.
c.
ASTM 1153.
d.
MIL-P-53084.
11.
Hail Guards; field installed.
12.
Coil Guards, field installed.
D.
Cooling System: Capable of operating from 35 to 125 degrees F (-1 to 52 degrees C) without installation of additional controls.
1.
Compressors: Scroll Type, R-410A refrigerant.
a.
Overload protected.
b.
Internal excessive current and temperature protection.
c.
High capacity filter/driers.
d.
High pressure switches.
e.
Vibration isolation: Mounted on elastomeric grommets.
 
**NOTE TO SPECIFIER** Include following 2 articles for Z-Series(TM) (ZH) packaged heat pumps models.
 
2.
Reversing Valves: Four-way interchange reversing valve.
 
**NOTE TO SPECIFIER** Crankcase heater is standard feature on ZH models only, and it is a field-installed option on ZC and ZG models.
 
3.
Crankcase heaters.
E.
Coil Construction: Condensing and evaporator coils, silver soldered.
1.
Copper tube, rippled-edge aluminum fins, and flared shoulder tubing connections, and factory leak tested.
2.
Evaporator Coils: Pressure and leak tested to 500 psi (3447 kPa).
 
**NOTE TO SPECIFIER** Subparagraph below is an optional feature.
 
a.
Flexible immersed coating electrodeposited by dry film process:
1)
ASTM B117.
2)
ASTM 1153.
3)
MIL-P-53084.
 
**NOTE TO SPECIFIER** Keep "Condensing coils" subparagraph below only if using a Z-Series ZH heat pump model
 
3.
Condenser coils:
 
**NOTE TO SPECIFIER** Add [Eco-Last(TM) Coil System] and sub-description only if using. Z-Series ZG gas/electric and ZC electric/electric models
 
a.
Eco-Last coil system: All aluminum construction.
1)
Over-core reinforcement.
2)
Coil-mounting isolators.
3)
Sheet metal isolators.
4)
Coil Stabilizers.
5)
Flexible immersed coating electrodeposited by dry film process on corrosion hardened units only.
4.
Condensate Drain Pan: Plastic, sloped meeting ASHRAE 62.1.
a.
End drain connection.
5.
Outdoor coil fan motors: Shaft down, mounted fan guard; thermal overload protected.
a.
Permanently lubricated bearings.
6.
Outdoor coil fans: PVC coated, furnished fan guard.
 
**NOTE TO SPECIFIER** Followings are field-installed options/accessories for Z-Series models.
 
7.
Condensate Drain Trap: available in copper or PVC.
8.
Drain Pan Overflow Switch.
9.
Low Ambient Kit
 
**NOTE TO SPECIFIER** Z-Series units with Gas Heating Systems are ZG models.
 
F.
Gas Heating System: Induced draft.
1.
Motor: PSC; ball bearings.
2.
Fuel type: Natural gas.
3.
Ignition: Direct spark pilot.
4.
Sensors: Electronic flame.
5.
Switches: Flame rollout, High heat limit, and safety.
a.
Induced draft failure: Operating to altitude of 2000 feet (610m) with no derate to manifold pressure.
1)
High altitude de-rate above 2000 feet (610 m) is 2 percent per1000 feet (2 percent per 305 m) less than standard de-rate of 4 percent per 1000 feet (4 percent per 305 m).
6.
Controls: Fan and limit.
7.
Service access: Controls, burners and heat exchanger.
8.
Heat Exchanger: Tubular.
a.
Aluminized steel.
9.
Gas piping system tight and free of leaks when pressurized to maximum supply pressure.
10.
Gas Valve: Two-stage, redundant type gas heat valve with manual shutoff.
11.
Gas Valve: Single-stage.
12.
Gas Burners: Aluminized steel inshot with powder metal flame retention ring.
13.
Low NOx.
 
**NOTE TO SPECIFIER** "Field Installed Accessories" are options that can be selected for the Raider ZG Gas/Electric models. The "Field Installed Accessories" are shipped separately and installed in the field.
 
14.
Field Installed Accessories:
a.
Vertical Vent Extension Kit.
b.
LPG/Propane Kit.
 
**NOTE TO SPECIFIER** The "Electric Heating System" is an option for Z-Series (ZH), heat pump, and Z-Series (ZC), electric/electric models only. The "Electric Heating System" is only available for field installation.
 
G.
Electric Heating System: Electrical resistance heater:
 
** NOTE TO SPECIFIER ** In factory installed delete subparagraph below
 
1.
Field installed.
2.
Fuse Block.
 
** NOTE TO SPECIFIER ** In factory installed delete subparagraph below
 
a.
Field Installed.
b.
Fusible link thermal limit protection.
c.
Single point power supply.
d.
Heater Element: Nickel chromium wire.
1)
Individually fused.
e.
Electric heater slides out of unit for service.
3.
Heating Controls:
 
** NOTE TO SPECIFIER ** The subparagraph below applies to ZG and ZH models.
 
a.
Support 2 stages of heating control from thermostat (ZG models).
 
** NOTE TO SPECIFIER ** The subparagraph below applies to ZC models.
 
b.
Support 1 stage of heating control from thermostat (ZC models).
H.
Supply Air Fan (Blower): Galvanized steel with forward curved blades.
1.
Constant Air Volume (CAV).
2.
Wheel: Balanced, statically and dynamically.
3.
Bearings: Ball bearings.
4.
Adjustable pulley for speed change.
5.
Blower assembly slides out of unit for servicing.
6.
Motor: Overload protected.
7.
Belt drive: Ball bearings.
I.
Supply Air Filters: Disposable 2 inch furnished as standard.
J.
Controls:
1.
Unit Control: 24V transformer (secondary) with external fuse protection.
2.
Heat/Cool Staging: 2 heat/2 cool staging control system or thermostat.
3.
Night setback mode.
4.
Controls Options:
a.
BACnet.
b.
Thermostat.
K.
Serviceability:
1.
Wiring: Labeled field connections, color coded and continuously marked wire to identify point-to-point component connections.
a.
Not in contact with hot-gas refrigerant lines or sharp metal edges.
2.
Electrical Plugs.
3.
Access Panels.
4.
Tool-less filter access panel.
5.
Blower Access.
6.
Coil Cleaning.
7.
Standard Components.
8.
Hinged Compressor access panel.
 
** NOTE TO SPECIFIER ** Delete "Field installed" subparagraphs below if accessories are to be factory installed. Factory installed is implied unless noted otherwise.
 
L.
Accessories:
1.
Economizer:
 
** NOTE TO SPECIFIER ** Delete one of the following two subparagraphs.
 
a.
Down flow.
b.
Horizontal.
c.
Hoods provided:
1)
Field installed.
 
**NOTE TO SPECIFIER** Delete if not required.
 
2.
High Performance Economizer:
a.
Dampers: Gear driven.
1)
Plug-in connections to unit.
2)
Nylon bearings.
3)
Enhanced neoprene blade edge seals.
4)
Flexible stainless steel jam seals.
5)
High torque, 24 V fully modulating spring return motor.
6)
Minimum damper position: Adjustable.
7)
Damper linkage and shafts: Plated.
b.
Control module:
1)
Inputs and outputs based on parameter settings.
2)
Automatic sensor detection.
3)
Alarm message display.
4)
Non-volatile memory: Maintains setting during power failure.
5)
Keypad: Setting parameters.
3.
Control: Single Enthalpy.
a.
Field installed.
4.
Outdoor Air Damper: Hood provided.
 
**NOTE TO SPECIFIER** Barometric relief damper is included with field installed economizer.
 
a.
Downflow.
1)
Field installed
b.
Horizontal
1)
Field installed
 
**NOTE TO SPECIFIER** Barometric relief damper is included with field installed economizer.
 
5.
Power exhaust fan:
a.
Field installed.
6.
Roof curb:
 
**NOTE TO SPECIFIER** Barometric relief damper is included with field installed economizer.
 
a.
Downflow.
1)
Field installed
b.
Horizontal.
1)
Field installed
7.
Ceiling Diffuser: Field installed. =
a.
Flush.
b.
Step down.
8.
Indoor Air Quality (CO2) Sensors
9.
Coil Guards:
a.
Field installed.
10.
Hail Guards:
a.
Field installed
11.
Condensate drain trap.
a.
Plastic:
1)
Field installed.
b.
Copper:
1)
Field installed.
 
** NOTE TO SPECIFIER ** The T-Series, up to 11.7 EER, Largest Allied Commercial split system available, ranging from 6 to 20 tons, power savings with the optional single-zone VAV supply fan. Delete if not required.
 
2.6
SPLIT SYSTEM OUTDOOR CONDENSING UNITS (T-SERIES)
A.
Split System Outdoor Condensing Units: T-Series by Allied Commercial.
1.
Model: TAA Air Handler.
 
** NOTE TO SPECIFIER ** The TSA Heat Pump is available for 7.5-ton and 10-ton units only. Delete if not required.
 
2.
Model: TPA Heat Pump.
3.
Model: TSA Condensing Unit.
 
**NOTE TO SPECIFIER** Delete capacities not required.
 
a.
6 Ton.
b.
7.5 Ton.
c.
10 Ton.
d.
12.5 Ton.
e.
15 Ton.
f.
20 Ton.
B.
Performance requirements:
1.
Must meet or exceed ASHRAE 90.1-2010 minimum standards.
 
**NOTE TO SPECIFIER** Delete if not required.
 
2.
3-5 Ton units:
a.
AHRI 210.
b.
AHRI 240.
 
**NOTE TO SPECIFIER** Delete if not required.
 
3.
6 Ton units:
a.
AHRI 340.
b.
AHRI 360.
4.
Sound Tested:
a.
AHRI 270
b.
AHRI 370
5.
CSA listed.
6.
ETL listed.
7.
NEC listed.
8.
CEC listed.
9.
UL listed.
10.
ULC listed.
C.
Split Systems Heat Pump and Condensing Units
1.
Maximum sound rating:89 dB.
2.
Cabinet: Pre-painted finish, heavy-gauge galvanized steel.
a.
Removable panels.
b.
Heavy duty steel base channels rails: Fork slots and lifting holes.
c.
Control box: Factory wired.
1)
Inside cabinet.
2)
Sized for field installed DDC or other control modules.
3.
Compressor: Scroll type; uniform suction flow, constant discharge flow.
a.
Internal excessive current and temperature protection.
 
** NOTE TO SPECIFIER ** Models TSA120S4D, TSA150, TSA180, and TSA240 have two compressors.
 
b.
Single stage compressor(s).
c.
Vibration isolation: Secured to elastomeric mounts.
 
** NOTE TO SPECIFIER ** Available only on TPA models (heat pumps).
 
d.
Defrost control: Outdoor temperatures below 42 degrees F (6.1 degrees C).
1)
Adjustable defrost cycle.
2)
Diagnostic LEDs.
3)
Terminal strip for field wiring.
4)
Condenser coil thermostat.
5)
Short-cycle protection.
4.
Crankcase heater.
5.
Refrigerant System Refrigerant: R410-A.
a.
Fully serviceable liquid and suction line service valves.
b.
High pressure switch: Manual reset.
c.
Loss of charge (low pressure) switch: Automatic reset.
d.
Hi-capacity driers: Trap refrigerant contaminants.
e.
Refrigerant line connections and field wiring: Located outside the unit.
 
** NOTE TO SPECIFIER ** Available only on TPA models (heat pumps).
 
f.
Reversing valve Refrigerant flow.
g.
Condenser Coil(s): Copper tube construction with machine fitted aluminum rippled and/or lanced fins, flared shoulder tubing connections, silver soldered brazed joints, and factory leak tested.
 
**NOTE TO SPECIFIER** Subparagraph below is an optional feature.
 
1)
Flexible immersed coating electrodeposited by dry film process:
a)
ASTM B117.
b)
ASTM 1153.
c)
MIL-P-53084.
 
** NOTE TO SPECIFIER ** Models TSA120, TSA150, TSA180, and TSA240 have two outdoor coil fans.
 
6.
Coil Fans/Air Mover: Direct drive, propeller fan(s).
a.
PVC coated steel fan guards; removable.
b.
Totally enclosed fan motors with rain shield.
7.
Low Ambient Operation: Down to 30 degreesF outdoor air temperature.
8.
Field Installed Options/Accessories:
a.
Coil / Hail Guards: Heavy duty metal mesh enclosures.
b.
Low Ambient Control Kit: Allowing unit operation down to 0 degreesF outdoor air temperature.
D.
Split Systems Air Handling Units:
1.
Standards:
a.
AHRI 340.
b.
AHRI 360.
c.
CEC listed.
d.
CSA listed.
e.
ETL listed.
f.
NEC listed.
2.
Cabinet: Painted, heavy gauge, galvanized steel cabinet.
a.
Fiberglass insulation.
b.
Removable side panels. Service access.
c.
Electrical inlets: Inside cabinet.
d.
Refrigerant piping knockouts provided both sides of cabinet.
3.
Control box. Separate unit in cabinet.
1)
Relocatable.
2)
Low voltage terminal strip, factory installed.
3)
Blower contactor.
4)
All controls prewired at factory.
4.
Thermostatic Expansion Valve (TXV): Factory installed for refrigerant flow regulation.
a.
One expansion valve per circuit.
 
** NOTE TO SPECIFIER ** Available only on TPA models (heat pumps).
 
b.
Internal check valves.
5.
Refrigerant Coil(s): Copper tube construction with machine fitted aluminum rippled and/or lanced fins, flared shoulder tubing connections, silver soldered brazed joints, and factory leak tested.
 
**NOTE TO SPECIFIER** Subparagraph below is an optional feature.
 
a.
Flexible immersed coating electrodeposited by dry film process:
1)
ASTM B117.
2)
ASTM 1153.
3)
MIL-P-53084.
6.
Refrigerant piping:
a.
Sweat connections internal to cabinet.
b.
Condensate drain: extends outside of cabinet.
1)
Positioned for vertical or horizontal flow applications.
7.
Freezestat: field installed.
8.
Electric heat section: Separate add on in matching cabinet.
a.
Cabinet: Painted, heavy-gauge galvanized steel.
1)
Hardware provided to secure cabinets together.
2)
Removable panels.
b.
Electric heaters: Helix wound, nichrome elements; field installed directly in airstream.
1)
Capacities:
 
**NOTE TO SPECIFIER** Delete capacities not required.
 
a)
10 kW.
b)
15 kW.
c)
20 kW.
d)
25 kW.
e)
30 kW.
f)
35 kW.
g)
40 kW.
2)
Limit controls: Overheating protection.
9.
Hot water coil: Separate add on in matching cabinet.
a.
Cabinet: Painted, heavy-gauge galvanized steel.
1)
Foil-faced fiberglass insulation.
2)
Hardware provided to secure cabinets together.
3)
Removable panels.
b.
Coil: Copper tube construction with machine fitted aluminum rippled and/or lanced fins, flared shoulder tubing connections, silver soldered brazed joints, and factory leak tested.
c.
Valves and pumps: Furnished by installer.
10.
Supply Air Filters: Disposable 2 inch furnished as standard. Field installed.
a.
2" MERV 11, 5 inch (127 mm) pleated filters.
b.
2" MERV 16, 5 inch (127 mm) pleated filters.
1)
MERV Filter Mounting Kit.
11.
UVC Germicidal Light Kit: ETL approved.
a.
Rapid start ballast; LED indicators.
b.
208/230 V/1ph power supply.
 
**NOTE TO SPECIFIER** Subparagraph below is needed for 460V and 575 V air handlers.
 
1)
Stepdown transformer
12.
Supply Air Fan (Blower): Galvanized steel with forward curved blades.
 
** NOTE TO SPECIFIER ** Following blower options are available on K-Series 7.5 to 25-ton models only.
 
a.
Constant Air Volume(CAV).
b.
Wheel: Balanced, statically and dynamically.
c.
Bearings: Ball bearings lubricated and sealed.
d.
Adjustable pulley for speed change.
e.
Blower assembly slides out of unit for servicing.
 
** NOTE TO SPECIFIER ** Belt drive motors are offered on all models. Direct Drive Motors are offered on K-Series 2 to 5-ton models only.
 
f.
Motor: Overload protected.
1)
Belt drive: Ball bearings.
 
** NOTE TO SPECIFIER ** Designed for use on split systems ranging in capacity from 7.5 to 20 ton.
 
g.
Single Zone VAV Supply Fan VFD Kit:
1)
ASHRAE 90.1-2010 Section 6.4.3.10
2)
California Code of Regulations Title 24.
3)
Blower speeds:
a)
Low: 66 percent of high speed for partial-load cooling
b)
High: Full load cooling.
4)
Operation range: -40 to 125 degrees F (-40 to 52 degrees C).
13.
Drain Plan: Plastic, corrosion resistant, and reversible.
14.
Float switch: Prevents condensate overflow.
15.
Return air grilles: Anodized aluminum.
16.
Accessories:
a.
Economizer: Factory assembled and wired, dampers and controls for field installation.
1)
Damper linkage and shafts: Plated.
2)
Cabinet: Painted, heavy-gauge galvanized steel.
a)
Foil-faced fiberglass insulation.
b)
Hardware provided to secure cabinets together.
c)
Removable panels.
d)
Flanged for easy duct connections:
1)
Outdoor air and return air.
3)
Standard economizer:
a)
Dampers: Gear driven.
1)
Plug-in connections to unit.
2)
Neoprene seals.
3)
24 V fully modulating spring return motor.
4)
Minimum damper position: Adjustable.
5)
Damper linkage and shafts: Plated.
b)
Control module:
1)
Can operate based on outdoor air temperatures.
2)
IAQ sensor: maintains 55 degrees when CO2 is higher than given set point.
3)
Demand control ventilation (DCV) LED: Indicated IAQ reading is higher than set point and requires more fresh air.
4)
Free cool LED: Outdoor air is suitable for free cooling.
 
** NOTE TO SPECIFIER ** high performance economizers are not approved for use with enthalpy controls in Title 24 applications.
 
4)
High performance economizer:
a)
Dampers: Gear driven.
1)
Plug-in connections to unit.
2)
Nylon bearings.
3)
Enhanced neoprene blade edge seals.
4)
Flexible stainless steel jam seals.
5)
High torque, 24 V fully modulating spring return motor.
6)
Minimum damper position: Adjustable.
7)
Damper linkage and shafts: Plated.
b)
Control module:
1)
Inputs and outputs based on parameter settings.
2)
Automatic sensor detection.
3)
Alarm message display.
4)
Non-volatile memory: Maintains setting during power failure.
5)
Keypad: Setting parameters.
b.
Differential enthalpy Control: Chooses between outdoor or return air; whichever has the lowest enthalpy.
1)
Field installed in economizer damper.
 
** NOTE TO SPECIFIER ** The Small Split, up to 11.0 EER, 7.7 HSPF, 3- to 5-ton units available. Delete if not required.
 
2.7
SMALL SPLITS
A.
Small Splits: By Allied Commercial.
 
**NOTE TO SPECIFIER** Delete models not required.
 
1.
Model: SCU Air conditioner:
 
**NOTE TO SPECIFIER** The dry charge units are for retrofitting into existing systems that have not been upgraded to modern refrigerant standards and are still using R22 refrigerant.
 
a.
Dry Charge
2.
Model: SHP Heat pump:
a.
Dry charge
3.
Model: ACBX Air Handler:
a.
3 Ton.
b.
4 Ton.
c.
5 Ton.
B.
Performance requirements:
1.
Must meet or exceed ASHRAE 90.1-2010 minimum standards.
2.
3-5 Ton units:
a.
AHRI 210.
b.
AHRI 240.
3.
UL listed.
4.
ULC listed.
C.
Split System Heat Pumps and Air Conditioners.
1.
Standards:
 
**NOTE TO SPECIFIER** Applies only when the entire system is listed with AHRI.
 
a.
AHRI 210 certified.
b.
AHRI 240 certified.
c.
UL Listed.
d.
ULC Listed.
2.
Sound Ratings: 78 dBA maximum.
3.
Design ambient: up to 125 degrees F (53 degrees C).
4.
Cabinet: Baked polyester painted finish over galvanized steel.
a.
Metal louvered exterior panels.
1)
Easily removable for servicing; two screws per panel.
b.
Rounded corners.
c.
External gauge ports.
 
**NOTE TO SPECIFIER** Subparagraph below is for SHP only
 
d.
Base pan: Ported, for water and debris drainage.
5.
Compressor: Scroll, high efficiency. R410A refrigerant.
a.
Overload Protection.
b.
Internal excessive current and temperature protection.
c.
Vibration isolation: Mounted on elastomeric grommets.
6.
Coil: Copper tube with aluminum fins.
a.
Raised coil to prevent debris collection.
7.
Components
a.
Filter drier.
 
**NOTE TO SPECIFIER** Subparagraph below is for SHP only.
 
1)
Bi-directional.
b.
Service valves.
c.
Trade available components.
 
**NOTE TO SPECIFIER** Subparagraph below is for SCU only
 
d.
Indoor coil orifice shipped with outdoor unit.
1)
Charged with 15 feet (4.6 m) of line set.
 
**NOTE TO SPECIFIER** Next four subparagraphs are for SHP only
 
e.
Discharge muffler.
f.
Solid-state, time-initiated, temperature terminated defrost system.
g.
Low pressure switch: Charge loss protection.
h.
High pressure switch: Compressor protection.
i.
Defrost control:
1)
Diagnostics.
2)
Short cycle protection.
3)
Quiet Shift capable.
4)
Field selectable: 30/60/90 minutes.
8.
Accessories:
a.
Blower off delay kit
b.
Sound covers.
c.
Freezestats.
d.
Loss of charge kit.
e.
Compressor time off control.
f.
Low ambient kit.
 
**NOTE TO SPECIFIER** Next two subparagraphs are for SHP only.
 
g.
Fossil flue kit.
h.
Crank case heater.
 
**NOTE TO SPECIFIER** Next three subparagraphs are for SCU only.
 
i.
High pressure cutout kit.
j.
Thermal expansion valve kit.
k.
Short cycle protection kit.
D.
Split System Dry-Charged, Heat Pumps and Air Conditioners.
1.
Standards:
a.
UL Listed.
b.
ULC Listed.
2.
Sound Ratings: 80 dBA maximum.
3.
Design ambient: up to 125 degrees F (53 degrees C).
4.
Cabinet: Baked polyester painted finish over galvanized steel.
a.
Metal louvered exterior panels.
1)
Easily removable for servicing; two screws per panel.
b.
Rounded corners.
c.
External gauge ports.
 
**NOTE TO SPECIFIER** Subparagraph below is for SHP only
 
d.
Base pan: Ported, for water and debris drainage.
5.
Compressor: Scroll, high efficiency. Nitrogen charged for replacements of R22 components only.
a.
Overload Protection.
b.
Internal excessive current and temperature protection.
c.
Vibration isolation: Mounted on elastomeric grommets.
6.
Coil: Copper tube with aluminum fins.
a.
Raised coil to prevent debris collection.
7.
Components
a.
Filter drier.
 
**NOTE TO SPECIFIER** Subparagraph below is for SHP only.
 
1)
Bi-directional.
b.
Service valves.
c.
Trade available components.
 
**NOTE TO SPECIFIER** Subparagraph below is for SCU only
 
d.
Indoor coil orifice shipped with outdoor unit.
1)
Charged with 15 feet (4.6 m) of line set.
 
**NOTE TO SPECIFIER** Next four subparagraphs are for SHP only
 
e.
Discharge muffler.
f.
Solid-state, time-initiated, temperature terminated defrost system.
g.
Low pressure switch: Charge loss protection.
h.
High pressure switch: Compressor protection.
i.
Defrost control:
1)
Diagnostics.
2)
Short cycle protection.
3)
Quiet Shift capable.
4)
Field selectable: 30/60/90 minutes.
8.
Accessories:
a.
Blower off delay kit.
b.
Sound covers.
c.
Freezestats.
d.
Loss of charge kit.
e.
Compressor time off control.
f.
Low ambient kit.
 
**NOTE TO SPECIFIER** Next two subparagraphs are for SHP only.
 
g.
Crank case heater.
 
**NOTE TO SPECIFIER** Next three subparagraphs are for SCU only.
 
h.
High pressure cutout kit.
i.
Thermal expansion valve kit.
j.
Short cycle protection kit.
E.
Air Handler for Heat Pump and Air Conditioner Applications:
1.
Standards:
a.
UL Listed.
b.
ULC Listed.
2.
Thermostatic Expansion Valve (TXV): Factory installed for refrigerant flow regulation.
3.
Cabinet: Painted, heavy gauge, galvanized steel cabinet.
a.
Foil faced insulation.
b.
Removable side panels: Service access.
c.
No external fastener heads protruding from cabinet sides.
d.
Tool-less filter access; installation, removal, and replacement.
e.
Electrical inlets: Cabinet top and sides.
f.
Stacked or split into two separate sections.
4.
Components:
a.
Blower: Multi-speed permanent split capacitor (PSC), single phase motor.
1)
Slide mounted for easy removal and maintenance.
2)
Up flow application.
3)
Down flow application.
4)
Horizontal application.
b.
Transformer and blower relay.
c.
Filter: Frame type.
d.
Distributor tubing: Sleeved.
5.
Drain Plan: Plastic, UV resistant; dual pipe drains.
6.
Accessories:
a.
Counter flow kit.
b.
Combustible floor kit.
c.
Single point power kit.
d.
Electric heat kit. Require 3 phase service.
1)
10 kW.
2)
15 kW.
3)
20 kW.
 
**NOTE TO SPECIFIER** The LF24 Unit Heater, up to 81% AFUE, heat capacity from 30,000-390,000 Btuh, compact and standard models available. Delete if not required.
 
2.8
UNIT HEATERS
A.
Unit Heaters: LF24. Gas Unit Heaters; Duct Furnaces by Allied Commercial.
 
**NOTE TO SPECIFIER** Delete capacities not required.
 
1.
Standard Units:
a.
100,000 Btuh.
b.
115,000 Btuh.
c.
145,000 Btuh.
d.
172,500 Btuh.
e.
195,000 Btuh.
f.
230,000 Btuh.
g.
250,000 Btuh.
h.
300,000 Btuh.
i.
345,000 Btuh.
j.
390,000 Btuh.
 
**NOTE TO SPECIFIER** Delete capacities not required.
 
2.
Compact Units:
a.
30,000 Btuh.
b.
45,000 Btuh.
c.
60,000 Btuh.
d.
75,000 Btuh.
B.
Performance Requirements:
1.
CSA certified.
2.
CEC listed.
3.
High altitude rating: All units may be fired at full input up to 2000 ft above sea level. See detailed product information for necessary derating on units based on altitude.
C.
Ships completely assembled: Controls factory installed, wired, and tested.
D.
Fuel type:
1.
Natural Gas.
2.
LPG/Propane.
E.
Venting:
1.
Horizontal.
2.
Vertical.
F.
Cabinet: Painted, heavy gauge, steel cabinet.
1.
Insulated panels.
2.
Louvers: Adjustable.
3.
Mounting: 3/8 in x 16 rivet nuts for unit suspension.
G.
Electrical Junction Box: Electrical and safety controls.
1.
Location:
 
**NOTE TO SPECIFIER** The junction box is located outside of the cabinet on standard units and inside the cabinet on compact units. Delete one of the two subparagraphs below that does not apply.
 
a.
Outside of cabinet.
b.
Inside of cabinet.
2.
Transformer:
 
**NOTE TO SPECIFIER** The subparagraph below applies to standard units only.
 
a.
120 / 24 V.
 
**NOTE TO SPECIFIER** The subparagraph below applies to compact units only.
 
b.
115 / 24 V.
3.
Combination ignition/fan timer control.
4.
Terminal strip: thermostat connections.
5.
Diagnostic LED.
H.
Fan: Direct driven.
I.
Heating system:
1.
Combination control valve: 24 volt.
a.
Manual shutoff.
b.
Gas pressure regulation.
2.
Ignition: Solid state, timer controlled, direct spark.
a.
Intermittent; only when required.
3.
Flame sensor:
a.
Initiates three attempts at re-ignition before lock out.
4.
Combustion air inducer: Operates only during heating cycle purging flue vents.
a.
Pressure switch: proves inducer operation prior to gas valve actuation.
b.
Blower motor: Direct drive, sleeve bearings, and thermally protected.
 
**NOTE TO SPECIFIER** Models LF24-100, 115, 125, and 145.
 
c.
Rotatable 90 degrees left or right of vertical to facilitate installation.
5.
Heat Exchanger: Tubular.
a.
Aluminized steel.
b.
Stainless steel.
6.
Burner Assembly: Inshot, aluminized steel.
a.
Venturi air and gas mixer.
b.
Removable as unit. Burners removable individually.
7.
Limit control: Factory installed and set.
J.
Venting:
1.
Vertical: Single wall and type B-1 double wall vent pipe.
2.
Horizontal: Single wall or Allied-approved stainless steel vent kits.
 
**NOTE TO SPECIFIER** The subparagraph below applies to compact units only.
 
K.
Hanging Brackets: for field installation.
L.
Options:
1.
Discharge Nozzles: Fully assembled painted heavy gauge steel.
a.
Orientation:
1)
30 degrees.
2)
45 degrees.
3)
60 degrees.
4)
90 degrees.
 
**NOTE TO SPECIFIER** The subparagraph below applies to standard units only.
 
2.
Hanging bracket kit: Suspends heats on two pipe hangers.
a.
Brackets and necessary hardware.
b.
Pipe hangers: 3/4 inch not furnished; field provided.
 
**NOTE TO SPECIFIER** The subparagraph below applies to compact units only.
 
3.
LPG/Propane conversion kit:
 
** NOTE TO SPECIFIER ** The LG14 Industrial Furnace, up to 81% AFUE, upflow or downflow operation, heating capacities of 225,000 to 445,000 BTU/hour. Delete if not required.
 
2.9
INDUSTRIAL FURNACES
A.
Gas Furnaces: Model LG14 by Allied Commercial.
 
**NOTE TO SPECIFIER** Delete capacities not required.
 
1.
225,000 Btuh.
2.
275,000 Btuh.
3.
350,000 Btuh.
4.
450,000 Btuh.
a.
Orientation:
1)
Horizontal.
2)
Vertical.
B.
Performance Requirements:
1.
UL listed.
C.
Cabinet:
1.
Base frame and blower deck: 16-gauge (1.52 mm) steel.
2.
Front header box: 14-gauge (1.99 mm) aluminized steel.
3.
Side panels: Removable.
4.
Observation door.
D.
Heat exchanger 14-gauge (1.9 mm) stainless steel.
E.
Fuel Pump: Two stage.
F.
Burn: Stainless steel flame retention head, 115 V.
G.
Overload Protection: 115/230 V. factory wired for 230 V.
1.
Blower motor, fans, and limits controls.
H.
Flue Travel: aluminized steel.
I.
Blowers: Primary, and secondary; rail mounted, slide out.
1.
Belt driven.
2.
Motor: Factory wired for 230 V. 3450 rpm.
a.
1.5 Hp (1.12 kW)
b.
2.0 Hp (1.49 kW).
3.
Oil burning Kit: Barometric control included.
a.
Oil burner: 7 Amps at 115 V.
PART 3 PRODUCTS
 
3.1
EXAMINATION
A.
Verification of Conditions: Examine areas and conditions under which Work is to be performed and identify conditions that may be detrimental to proper or timely completion.
1.
Verify locations of all connections; i.e. piping and wiring.
B.
Do not proceed until unsatisfactory conditions have been corrected.
3.2
INSTALLATION
A.
General: Install products in accordance with manufacturer's instructions, approved submittals, and in proper relationship with adjacent construction.
B.
For roof curbs refer to appropriate sections in Division 07 for detailed specification information on roof curbs.
C.
Cast-in-place equipment bases: See appropriate sections in Division 03 for detailed specification of cast-in-place concrete or miscellaneous cast-in-plate concrete.
D.
Connections: Ducts, drains, gas piping, and wiring; see appropriate sections in Division 23 and 26 for detailed specifications information.
3.3
FIELD QUALITY CONTROL
A.
Testing: Test units for proper operation. Adjust until satisfactory results are obtained.
1.
Employ the use of a factory authorized representative to coordinate efforts.
B.
Replace any controls or equipment that fails to functioning properly or is damaged.
C.
Perform startup procedure per manufacturer's instructions.
1.
Employ the use of a factory authorized representative to coordinate efforts.
2.
Inspect entire unit for damages.
3.
Verify all systems and components are operating and performing to specification.
a.
Verify all system calibrations are functioning normally.
D.
Replace filters: After testing and startup has been completed.
E.
Have manufacturer's representative, train maintenance personnel.
F.
Prepare and submits reports.
3.4
CLEANING AND PROTECTION
A.
Protect from damage during construction operations. Promptly repair any damaged surfaces. Remove and replace work which cannot be satisfactorily repaired.
B.
Clean products, prior to Substantial Completion, using materials recommended by the manufacturer.
3.5
OCCUPANCY ADJUSTMENT
A.
Adjust systems to meet actual needs of occupants.
1.
Months after Substantial Completion: ______ months.
a.
Number of visits: ______.
END OF SECTION