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SECTION 23 82 00
ELECTRIC MAKE-UP AIR AND DUCT BOOST HEATERS
 
 
Copyright 2012 - 2015 ARCAT, Inc. - All rights reserved
** NOTE TO SPECIFIER ** Electro Industries, Inc.; electric make-up air and duct boost heaters.
.
This section is based on the products of Electro Industries, Inc., which is located at:
2150 W. River St. P. O. Box 538
Monticello, MN 55362
Toll Free Tel: 800-922-4138
Tel: 763-295-4138
Fax: 763-295-4434
Email: request info (sales@electromn.com)
Web: www.electromn.com
[ Click Here ] for additional information.
Electro Industries has always had a strong desire to internally control all aspects of product control. We are unique in that we not only internally design our products, but we also fabricate our own sheet metal parts, with a welding department, circuit board assembly, and testing.
As a company, we are continually seeking ways to improve upon and create new products to help our customers better manage their comfort and energy needs.
 
PART 1 GENERAL
 
1.1
SECTION INCLUDES
A.
Electric make-up air and duct boost heaters.
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
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.
C.
Shop Drawings: Include system components, utility requirements and connections, relationship with adjacent construction. Include required clearances and access for servicing.
1.4
QUALITY ASSURANCE
A.
Manufacturer Qualifications: Minimum 5 years experience manufacturing similar equipment.
B.
Installer Qualifications: Minimum 2 years experience installing similar equipment.
1.5
DELIVERY, STORAGE, AND HANDLING
A.
Store products in manufacturer's unopened packaging until ready for installation.
1.6
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 absolute limits.
1.7
WARRANTY
A.
Provide manufacturers standard limited warranty.
PART 2 PRODUCTS
 
2.1
MANUFACTURERS
A.
Acceptable Manufacturer: Electro Industries, Inc., which is located at: 2150 W. River St. P. O. Box 538; Monticello, MN 55362; Toll Free Tel: 800-922-4138; Tel: 763-295-4138 ; Fax: 763-295-4434; Email: request info (sales@electromn.com); Web: www.electromn.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.
2.2
AIR HEATERS
 
** NOTE TO SPECIFIER ** Electro Industries manufactures a complete line of electric duct heaters with various physical sizes and KW/Btu/h outputs. Delete if not required.
 
A.
Electric Duct Heaters:
1.
Product: WarmFlo Comfort Module as manufactured by Electro Industries, Inc.
2.
Provide units as indicated or scheduled on the drawings:
 
** NOTE TO SPECIFIER ** Non-blower engineered units. Refer to manufacturer's literature to select model based on temperature rise and air flow requirements. Delete model not required.
 
3.
Model: EM-WX0111R - 1,000-watt, 120V plug-in, 150 CFM (4.2 CMM) rating, 6 inches (152 mm) round duct section.
4.
Model: EM-WC0515H - 4,800-watt, 240V, 400 CFM (11 CMM) rating, 8 inches by 10 inches d (203 mm by 254 mm d) element rack.
5.
Model: EM-WC0515L - 4,800-watt, 240V, 400 CFM (11 CMM) rating, 8 inches by 16 inches d (203 mm by 406 mm d) element rack.
 
** NOTE TO SPECIFIER ** The unit includes an 8-position dial switch to set the desired outlet sensor temperature. In order to give this 8-position dial switch proper definition and accuracy, when ordering select the temperature range which meets your application.
 
6.
Outlet Sensor: "CodeA" 85 to 150 degree F (29 to 66 degree C).
7.
Outlet Sensor: "Code B" 96 to 124 degree F (36 to 51 degree C).
8.
Outlet Sensor: "Code C" 20 to 55 degree F (-7 to 13 degree C).
9.
Outlet Sensor: "Code E" 68 to 96 degree F (20 to 36 degree C).
10.
Outlet Sensor: "Code H" 88 to 102 degree F (31 to 38 degree C).
 
** NOTE TO SPECIFIER ** These units provide tempered fresh air for code requirements and/or appliances which could create unhealthy negative pressure within the building. Delete if not required.
 
B.
Electric Make-Up Air Heaters:
1.
Product: WarmFlo as manufactured by Electro Industries, Inc.
2.
Provide packaged units as indicated or scheduled on the drawings:
 
** NOTE TO SPECIFIER ** Non-blower engineered round duct units. Refer to manufacturer's literature to select model based on temperature rise and air flow requirements. Delete model not required.
 
3.
Unit: Duct heater and outlet temperature sensor. Controlled by external 24 volt switch or relay in control sequence.
a.
Model: EM-WX0111R - 1,000-watt, 120V plug-in, 150 CFM (4.2 CMM) rating, 6 inches (152 mm) round duct section.
b.
Model: EM-WX0212R - 2,500-watt, 240V, 250 CFM (7 CMM) rating, 8 inches (203 mm) round duct section.
c.
Model: EM-WX0515R - 5,000-watt, 240V, 350 CFM (10 CMM) rating, 8 inches (203 mm) round duct section.
d.
Model: EM-WX1025R - 10,000-watt, 240V, 700 CFM (20 CMM) rating, 10 inches (254 mm) round duct section.
 
** NOTE TO SPECIFIER ** Non-blower engineered rectangular duct units. Refer to manufacturer's literature to select model based on temperature rise and air flow requirements. Delete model not required.
 
4.
Unit: Cabinet Duct heater and outlet temperature sensor. Controlled by external 24 volt switch or relay in control sequence.
a.
Model: EM-WC0515H - 4,800-watt, 240V, 400 CFM (11 CMM) rating, 8 inches by 10 inches d (203 mm by 254 mm d) element rack.
b.
Model: EM-WC0515L - 4,800-watt, 240V, 400 CFM (11 CMM) rating, 8 inches by 16 inches d (203 mm by 406 mm d) element rack
c.
Model: EM-WC1025L - 9,600-watt, 240V, 800 CFM (23 CMM) rating, 8 inches by 16 inches d (203 mm by 406 mm d) element rack
d.
Model: EM-WM1535L - 15,000-watt, 240V, 1,100 CFM (31 CMM) rating, 8 inches by 16 inches d (203 mm by 406 mm d) element rack
e.
Model: EM-WM2035L - 20,000-watt, 240V, 1,300 CFM (37 CMM) rating, 8 inches by 16 inches d (203 mm by 406 mm d) element rack
f.
Model: EM-WM1134H - 10,800-watt, 208V 3-phase, 800 CFM (23 CMM) rating, 8 inches by 10 inches d (203 mm by 254 mm d) element rack
g.
Model: EM-WM1536L - 14,400-watt, 240V 1-phase, 1,100 CFM (31 CMM) rating, 8 inches by 16 inches d (203 mm by 406 mm d) element rack.
h.
Model: EM-WM1536L - 15,000-watt, 208V 3-phase, 1,100 CFM (31 CMM) rating, 8 inches by 16 inches d (203 mm by 406 mm d) element rack.
 
** NOTE TO SPECIFIER ** The unit includes an 8-position dial switch to set the desired outlet sensor temperature. In order to give this 8-position dial switch proper definition and accuracy, when ordering select the temperature range which meets your application. Delete outlet sensor code not required.
 
5.
Outlet Sensor: "Code B" 96 to 124 degree F (36 to 51 degree C).
6.
Outlet Sensor: "Code C" 20 to 55 degree F (-7 to 13 degree C).
7.
Outlet Sensor: "Code E" 60 to 95 degree F (16 to 35 degree C).
8.
Outlet Sensor: "Code H" 88 to 102 degree F (31 to 38 degree C).
 
** NOTE TO SPECIFIER ** Delete sequence logic to provide 24 volt to sensor and/or blower relay.
 
9.
Control: System or external contact closure provides 24 volts to the unit - Pressure differential switch.
10.
Control: System or external contact closure provides 24 volts to the unit - Inlet damper end switch.
11.
Control: System or external contact closure provides 24 volts to the unit - Relay connected to blower motor, contact closure.
12.
Control: System or external contact closure provides 24 volts to the unit - Exhaust motor current switch contact.
13.
Control: System or external contact closure provides 24 volts to the unit - Thermostat, blower function "G" (parallel connection)
14.
Control: System or external contact closure provides 24 volts to the unit - Temperature sensing thermostat (must also operate blower).
 
** NOTE TO SPECIFIER ** These units provide tempered fresh air for code requirements and/or appliances which could create unhealthy negative pressure within the building. Delete if not required.
 
C.
Self Contained Electric Make-Up Air Heaters:
1.
Product: WarmFlo as manufactured by Electro Industries, Inc.
2.
Provide units as indicated or scheduled on the drawings:
3.
Unit: Blower, PSC motor, adjustable blower speeds, permanent washable filter, outlet temperature sensing and control, modulating electric elements, preset outlet temperature and control board interface.
 
** NOTE TO SPECIFIER ** Delete model not required.
 
4.
Model: EM-WH0515J - 5,000-watt, 240V plug-in, 300 CFM (8.5 CMM) rating, 8 inches (203 mm) round duct section.
5.
Model: EM-WH1025K - 10,000-watt, 240V, 600 CFM (17 CMM) rating, 10 inches (254 mm) round duct section.
 
** NOTE TO SPECIFIER ** Packaged Make-Up Air units are designed for tight environments where unhealthy negative pressure can be created by appliances such as kitchen vent hoods, fireplaces, dryers, gas furnaces, water heaters, bathroom exhaust fans or any appliance with sealed combustion. Delete if not required.
 
D.
Packaged Electric Make-Up Air Heaters:
1.
Product: WarmFlo as manufactured by Electro Industries, Inc.
2.
Provide packaged units as indicated or scheduled on the drawings:
 
** NOTE TO SPECIFIER ** Engineered blower units. Refer to manufacturer's literature to select model based on temperature rise and air flow requirements.
 
3.
Unit: Blower, control wiring terminals, stage LED indicators, hi-limits, automatic reset, 135 degrees F to 150 degrees F (57 degrees C to 66 degree C), 5-year element warranty, 2-year parts warranty, temperature sensing with full modulation, includes blower, 1/2 HP ECM motor, fully insulated cabinet, circuit breakers, easy access panel doors, thermostat end switch connection, cooling mode element disable option, rated for outside air and CSA listed.
 
** NOTE TO SPECIFIER ** Delete model not required.
 
4.
Model: HE-A-15-21 - 14,400-watt, 240V single phase 60 amp, minimum 560 CFM (16 CMM) rating.
5.
Model: HE-A-20-21 - 19,200-watt, 240V single phase 60 amp, minimum 750 CFM (21 CMM) rating.
 
** NOTE TO SPECIFIER ** Packaged Make-Up Air units are designed for tight environments where unhealthy negative pressure can be created by appliances such as kitchen vent hoods, fireplaces, dryers, gas furnaces, water heaters, bathroom exhaust fans or any appliance with sealed combustion. Delete if not required.
 
E.
Packaged Electric Make-Up Air Heaters with Multi-Speed Control:
1.
Product: WarmFlo as manufactured by Electro Industries, Inc.
2.
Provide packaged units as indicated or scheduled on the drawings:
 
** NOTE TO SPECIFIER ** Engineered blower units. Refer to manufacturer's literature to select model based on temperature rise and air flow requirements.
 
3.
Unit: Multiple fan speed output, multiple interfacing options to external controls, LCD display, digital proportional temperature control, integrated powered inlet damper, aluminum mesh permanent washable filter, three CT inputs available for multiple fan applications, horizontal or vertical installation, unique design allows for simplified installation, 20 year finned rod element warranty, 2-year parts warranty.
4.
Model: EM-MA01-120-1-06, 1 kW, 3,410 btu/hr, 8.3 amps, 1/16 HP motor, 150 max CFM.
5.
Model: EM-MA02-120-1-06, 1.6 kW, 5,460 btu/hr, 13.3 amps, 1/16 HP motor, 150 max CFM.
6.
Model: EM-MA05-240-1-08, 5 kW, 17,070 btu/hr, 20.8 amps, 1/10 HP motor, 350 max CFM.
7.
Model: EM-MA10-240-1-10, 10 kW, 34,150 btu/hr, 41.6 amps, 1/5 HP motor, 600 max CFM.
8.
Model: EM-MA15-240-1-14, 15 kW, 51,220 btu/hr, 62.4 amps, 1/4 HP motor, 1050 max CFM.
9.
Model: EM-MA20-240-1-14, 20 kW, 68,300 btu/hr, 83.2 amps, 1/2 HP motor, 1200 max CFM.
10.
Model: EM-MA14-208-3-14, 14.4 kW, 49,170 btu/hr, 40.0 amps, 1/4 HP motor, 900 max CFM.
11.
Model: EM-MA22-208-3-14, 21.6 kW, 73,760 btu/hr, 60.0 amps, 1/2 HP motor, 1250 max CFM.
 
** NOTE TO SPECIFIER ** Comfort Module is available as a controller only, use the first 5 kW strip heat section of any manufacturer's heat pump. This is sometimes preferred by HVAC dealers/technicians because the added electrical service line is not required. Delete if not required.
 
F.
Heat Pump Controller:
1.
Product: WarmFlo Controller as manufactured by Electro Industries, Inc.
2.
Model: WF-CM1.
PART 3 EXECUTION
 
3.1
EXAMINATION
A.
Do not begin installation until substrates have been properly prepared.
B.
If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
3.2
PREPARATION
A.
Clean surfaces thoroughly prior to installation.
B.
Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
3.3
INSTALLATION
A.
Install in accordance with manufacturer's instructions. Test for proper operation.
B.
Make-up Air Heater Installation:
1.
When installing this duct heater, NEC 424, Part IV, Duct Heaters, applies.
2.
When installed in an "inline" duct or round pipe adapter for a general distribution boost heater or make-up air application, observe the following guidelines:
a.
Product shall be installed in conditioned space only.
b.
This product can be installed vertically or horizontally. When vertical, inlet must face down.
c.
This product shall be installed in a metal duct, size of element rack.
d.
There shall be no insulation on the inside of this sheet metal duct section.
e.
Flex-pipe or other insulated pipe shall be at least 24 inches (610 mm) from the electric element.
f.
Mounting - there shall be at least 2 inches (51 mm) air clearance around all sides of this sheet metal duct section. Make mounting provisions for 1 inch (25 mm) air space at the top.
g.
No materials shall be in contact with cabinet housing which as a flame point less than wood 300 deg F (150 deg C).
h.
To insulate this duct section for moisture condensation or in an unheated compartment, wrap insulation around the exterior of this metal duct section.
i.
The control box shall be positioned so it will not receive dripping water or collection of moisture.
3.4
PROTECTION
A.
Protect installed products until completion of project.
B.
Touch-up, repair or replace damaged products before Substantial Completion.
END OF SECTION