SECTION 23 52 00

HEATING BOILERS AND ACCESSORIES

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PART 1    GENERAL
1.1	SECTION INCLUDES
A.	Electric boilers and accessories.
1.2	RELATED SECTIONS
A.	Section 22 05 00 - Common Work Results for Plumbing.
B.	Section 26 05 00 - Common Work Results for Electrical.
1.3	REFERENCES
A.	Underwriters Laboratory (UL) 
1.	UL 834 - Heating, Water Supply, and Power Boilers - Electric.
B.	Intertek's ETL Certification Program:
1.	ETL Listed
C.	American Society of Mechanical Engineers (ASME):
1.	ASME Boiler and Pressure Vessel Code Section IV, National Board
2.	CSD-1 - Controls and Safety Devices for Automatically Fired Boilers
D.	CRN
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.
C.	Shop Drawings: Include system components, utility requirements and connections, relationship with adjacent construction. Include required clearances and access for servicing.
1.5	QUALITY ASSURANCE
A.	Manufacturer Qualifications: Minimum 5 years experience manufacturing similar equipment.
B.	Installer Qualifications: Minimum 2 years experience installing similar equipment.
C.	Standards: Boilers shall meet the requirements of the ASME Boiler and Pressure Vessel Code.
1.6	DELIVERY, STORAGE, AND HANDLING
A.	Store products in manufacturer's unopened packaging until ready for installation.
1.7	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.
1.8	WARRANTY
A.	Manufacture's standard residential limited warranty with the following warranty periods:
1.	2 year parts warranty.
2.	20 year element warranty.
3.	20 year boiler vessel warranty. 
PART 2    PRODUCTS
2.1	MANUFACTURERS
A.	Acceptable Manufacturer:  Laars Heating Systems Company dba Electro Industries, Inc., which is located at:<BR />2150 W. River St., P. O. Box 538<BR />Monticello, MN 55362<BR />Toll Free Tel: 800-922-4138<BR />Tel: 763-295-4138  <BR />Fax: 763-295-4434<BR />Email: request info (sales@electromn.com);Web: https://electromn.com 
B.	Substitutions: Not permitted.
C.	Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 - Product Requirements.
2.2	SMALL ELECTRIC BOILERS
A.	Mini-Size Boiler:
1.	Compact wall mounted radiant floor heating boiler. 
2.	Product: EMB Series Radiant Floor Mini-Boiler as manufactured by Electro Industries Inc.
3.	Model: EMB-R1-01-120-1, 120 V, 1,100 W, 9 A, 1.1 kW, 1-phase, 60Hz, 3,700 Btu/h, CB N/A.
4.	Model: EMB-R1-03-120-1 120 V, 2,500 W, 21 A, 2.5 kW, 1-phase, 60Hz, 8,500 Btu/h, CB N/A.
5.	Model: EMB-R1-05-240-1 240 V, 4,500 W, 19 A, 5 kW, 1-phase, 60Hz, 15,300 Btu/h, CB 30A.
6.	Model: EMB-R1-07-240-1 240 V, 7,000 W, 29 A, 7 kW, 1-phase, 60Hz, 23,800 Btu/h, CB 45A.
7.	Model: EMB-R1-09-240-1 240 V, 9,000 W, 38 A, 9 kW, 1-phase, 60 Hz, 30,700 Btu/h, CB 60A.
8.	Model: EMB-M2-01-120-1, 120 V, 1,100 W, 9 A, 1.1 kW, 1-phase, 60Hz, 3,800 Btu/h, CB N/A.
9.	Model: EMB-M2-03-120-1 120 V, 2,500 W, 21 A, 2.5 kW, 1-phase, 60Hz, 8,500 Btu/h, CB N/A.
10.	Model: EMB-M2-05-240-1, 240 V, 4,500 W, 19 A, 5 kW, 1-phase, 60Hz, 15,300 Btu/h, CB 30A.
11.	Model: EMB-M2-07-240-1, 240 V, 7,000 W, 29 A, 7 kW, 1-phase, 60Hz, 23,800 Btu/h, CB 45A.
12.	Model: EMB-M2-09-240-1 240 V, 9,000 W, 38 A, 9 kW, 1-phase, 60Hz, 30,700 Btu/h, CB 60A.
13.	Model: EMB-M2-12-240-1 240V, 12,000 W, 50 A, 12kW, 1-phase, 60Hz, 41,000 Btu/h, CB 45A,45A.
14.	Model: EMB-M2-15-240-1 240V, 15,000 W, 62.5 A, 15kW, 1-phase, 60Hz, 51,000 Btu/h, CB 65A,45A.
15.	Model: EMB-M2-18-240-1 240V, 18,000 W, 75 A, 18kW, 1-phase, 60Hz, 61,400 Btu/h, CB 60A,60A.
16.	Dimension (WxHxD): 11 x 29 x 9 inches (279 x 737 x 229 mm).
17.	Capacity: 0.95 gal (3.60 L) vessel.
18.	Construction: 
a.	Heavy duty sheet metal enclosure.
b.	Built-in supply pressure/temperature gauge.
c.	Safety relief valve 30 psi (207 kPa).
d.	Inlet and Outlet Connections: 3/4 inch MPT.
e.	Built in accordance with ASME Section IV and registered with the national board, under A.14.e.
19.	Controls: EMB-R1 Series.
a.	Single zone control wiring terminals.
b.	Built-in supply water sensing.
c.	LED indicator lights.
d.	DC Power Relays.
e.	Hi-Limits:
1)	1st: Automatic reset at 190 degrees F (88 degrees C). 
2)	2nd: Manual reset at 205 degrees F (96 degrees C).
f.	Circulator Switching Relay: 10 amp maximum.
g.	Thermostat or end switch connection; R and W.
h.	Load management control provisions.
i.	Fossil fuel boiler output relay.
j.	Temperature set point 90 to 160 degrees F (32 to 71 degrees C) in 10 degree increments.
20.	Controls: EMB-M2 Series.
a.	Two zone control wiring terminals.
b.	Built-in supply water sensing.
c.	Optional outdoor sensor included.
d.	LED indicator lights.
e.	DC Power Relays.
f.	Hi-Limits: 
1)	1st: Automatic reset at 190 degrees F (88 degrees C).
2)	2nd: Manual reset at 205 degrees F (96 degrees C).
g.	Two Circulator Switching Relays: 10 amp maximum.
h.	Thermostat or end switch connection; R and W.
i.	Load management control provisions.
j.	Fossil fuel boiler output relay.
k.	Adjustable outlet water temperature control for each zone.
l.	Priority high temperature setting for Zone 1.
m.	Temperature range both zones 90 to 180 degrees F (32 to 82 degrees C).
B.	Packaged Mini Boiler:
1.	Product: EZB - Single Phase Voltage Packaged Mini EZ Boiler as manufactured by Electro Industries Inc.
2.	Model: EZB-R1-01-120-1, 120 V, 1,100 W, 9 A, 1.1 kW, 1-phase, 60Hz, 3,700 Btu/h, CB N/A.
3.	Model: EZB-R1-03-120-1 120 V, 2,500 W, 21 A, 2.5 kW, 1-phase, 60Hz, 8,500 Btu/h, CB N/A.
4.	Model: EZB-R1-05-240-1 240 V, 4,500 W, 19 A, 5 kW, 1-phase, 60Hz, 15,300 Btu/h, CB 30A.
5.	Model: EZB-R1-07-240-1 240 V, 7,000 W, 29 A, 7 kW, 1-phase, 60Hz, 23,800 Btu/h, CB 45A.
6.	Model: EZB-R1-09-240-1 240 V, 9,000 W, 38 A, 9 kW, 1-phase, 60Hz, 30,700 Btu/h, CB 60A.
7.	Model: EZB-M2-01-120-1, 120 V, 1,100 W, 9 A, 1.1 kW, 1- phase, 60Hz, 3,800 Btu/h, CB N/A.
8.	Model: EZB-M2-03-120-1 120 V, 2,500 W, 21 A, 2.5 kW, 1-phase, 60Hz, 8,500 Btu/h, CB N/A.
9.	Model: EZB-M2-05-240-1, 240 V, 4,500 W, 19 A, 5 kW, 1-phase, 60Hz, 15,300 Btu/h, CB 30A.
10.	Model: EZB-M2-07-240-1, 240 V, 7,000 W, 29 A, 7 kW, 1-phase, 60Hz, 23,800 Btu/h, CB 45A.
11.	Model: EZB-M2-09-240-1 240 V, 9,000 W, 38 A, 9 kW, 1-phase, 60Hz, 30,700 Btu/h, CB 60A.
12.	Model: EZB-M2-12-240-1 240V, 12,000 W, 50 A, 12kW, 1-phase, 60Hz, 41,000 Btu/h, CB 45A,45A.
13.	Model: EZB-M2-15-240-1 240V, 15,000 W, 62.5 A, 15kW, 1-phase, 60Hz, 51,000 Btu/h, CB 65A,45A.
14.	Model: EZB-M2-18-240-1 240V, 18,000 W, 75 A, 18kW, 1-phase, 60Hz, 61,400 Btu/h, CB 60A,60A.
15.	Dimensions (W x H x D): 22 x 34.5 x 12 inches (555 x 873 x 320 mm).
16.	Boiler Vessel Capacity 95 gal (3.60 L).
a.	Built in accordance with ASME Section IV and registered with the national board, under A.14.e.
17.	Construction: 
a.	Heavy duty sheet metal enclosure.
b.	Built-in supply pressure/temperature gauge.
c.	Safety relief valve 30 psi (207 kPa).
d.	Enhanced air eliminator.
e.	Expansion tank 2.1gal 40KBTU.
f.	Three speed circulator with isolation valves.
g.	Inlet and Outlet Connections: 3/4-inch MPT.
18.	Controls: EZB-R1 Series.
a.	Single zone control wiring terminals.
b.	Built-in supply water sensing.
c.	LED indicator lights.
d.	DC Power Relays.
e.	Hi-Limits: 
1)	1st: Automatic reset at 190 degrees F (88 degrees C).
2)	2nd: Manual reset at 205 degrees F (96 degrees C).
f.	Single external circulator or zone valve switching relay: 10 amp maximum.
g.	Thermostat or end switch connection; R and W.
h.	Internal pump activation with thermostat call.
i.	Load management control provisions.
j.	Fossil fuel boiler output relay.
k.	Temperature set point 90 to 160 degrees F (32 to 71 degrees C) in 10 degree increments.
19.	Controls: EZB-M2 Series. 
a.	Two zone control wiring terminals.
b.	Two Temperature set point ranges.
1)	Lo 90 to 160 degrees F (32 to 70 degrees C) in 10 degree increments.
2)	HI 110 to 180 degrees F (43 to 82 degrees C) in 10 degree increments.
c.	Priority high temperature setting for zone 1.
d.	Built-in supply water sensing.
e.	LED indicator lights.
f.	DC Power Relays.
g.	Hi-Limits: 
1)	1st: Automatic reset at 190 degrees F (88 degrees C).
2)	2nd: Manual reset at 205 degrees F (96 degrees C).
h.	Two external circulator or zone valve switching relays: 10 amp maximum.
i.	Thermostat or end switch connection; R and W.
j.	Internal pump activation with thermostat call.
k.	Load management control provisions.
l.	Fossil fuel boiler output relay.
C.	Midsize Electric Boiler:
1.	Product: EDB - Single Phase Voltage TS Series Controlled, Midsize Boiler as manufactured by Electro Industries Inc.
2.	Model: EDB-T1-20-240-1, 240V. 20,000W, 83.33 A, 20KW, 1-Phase, 60Hz, 68,200 Btu/h 60A and 60A CB.
3.	Model: EDB-T1-24-240-1, 240V, 24,000W. 100A, 24KW, 1-Phase, 60Hz, 82,000 Btu/h, 80A and 60A CB.
4.	Model: EDB-T1-28-240-1, 240V, 28,000W, 117A, 28KW, 1-Phase, 60Hz, 96,000 Btu/h, 80A and 80A CB.
5.	Model: EDB-T1-32-240-1, 240V, 32,000W, 134A, 32KW, 1-Phase, 60Hz, 109,000 Btu/h 80A and 100A CB.
6.	Model: EDB-T1-36-240-1, 240V,36,000W, 150A,36KW,1-Phase, 60Hz,122,800 Btu/h 100A and 100A CB.
D.	Midsize Electric Boiler:
1.	Product: EDB-Three Phase Voltage TS Series Controlled Boiler as manufactured by Electro Industries, Inc.
2.	Model: EDB-T1-20-240-3, 240V, 20,000W, 47A, 20KW, 3-Phase 60Hz, 68,242 Btu/h 60A CB.
3.	Model: EDB-T1-24-240-3, 240V, 24,000W, 57A, 24KW, 3-Phase, 60Hz, 81,900Btu/h 80A CB.
4.	Model: EDB-T1-28-240-3, 240V, 28,000W, 67A, 28KW 3-Phase, 60Hz, 95,500Btu/h 90A CB.
5.	Model: EDB-T1-32-240-3, 240V, 32,000W, 77A, 32KW 3-Phase, 60Hz, 109.000Btu/h 100A CB.
6.	Model: EDB-T1-36-240-3, 240V, 36,000W,87A, 36KW 3-Phase, 60Hz, 123,000Btu/h 110A CB.
7.	Model: EDB-T1-18-208-3, 208V, 18,000W, 50A, 18KW, 3-Phase, 60Hz, 61,434Btu/h, 70A CB.
8.	Model: EDB-T1-23-208-3, 208V, 23,000W, 62A, 23KW, 3-Phase, 60Hz, 78,500Btu/h, 80A CB.
9.	Model: EDB-T1-28-208-3, 208V, 28,000W, 75A, 28KW, 3-Phase, 60Hz, 92,000Btu/h, 100A CB.
10.	Model: EDB-T1-32-208-3, 208V, 31,500W, 87A, 31.5KW, 3-Phase, 60Hz, 107,000Btu/h 110A CB.
11.	Model: EDB-T1-36-208-3,208V, 36,000W, 100A, 36KW, 3-Phase, 60Hz, 123,000Btu/h 125A CB.
12.	Model: EDB-T1-18-480-3, 480V, 18,000W, 22A, 18KW, 3-Phase, 60Hz, 61,000Btu/h 30A CB.
13.	Model: EDB-T1-24-480-3, 480V, 24,000W, 29A, 24KW, 3-Phase, 60Hz, 82,000Btu/h 40A CB.
14.	Model: EDB-T1-28-480-3, 480V, 28,000W, 32A, 28KW, 3-Phase, 60Hz, 92,000Btu/h 45A CB.
15.	Model: EDB-T1-30-480-3, 480V, 30,000W, 36A, 30KW, 3-Phase, 60Hz, 102,000Btu/h 50A CB.
16.	Model: EDB-T1-36-480-3, 480V, 36,000W, 43A, 36KW, 3-Phase, 60Hz, 123,000Btu/h, 60A CB.
17.	Model: EDB-T1-20-600-3, 600V, 20,000W, 24A, 20KW, 3-Phase, 60Hz, 68,200Btu/h, 30A CB.
18.	Model: EDB-T1-24-600-3, 600V, 24,000W, 29A, 24KW, 3-Phase, 60Hz, 82,000Btu/h, 30A CB.
19.	Model: EDB-T1-28-600-3, 600V, 28,000W, 34A, 28KW, 3-Phase, 60Hz, 95,600Btu/h, 40A CB.
20.	Model: EDB-T1-32-600-3, 600V, 32,000W, 38A, 32KW, 3-Phase, 60Hz, 109,216Btu/h, 40A CB.
21.	Model: EDB-T1-36-600-3, 600V, 36,000W, 43A, 36KW, 3-Phase, 60Hz, 122,800Btu/h, 50A CB.
22.	Series: Midsize EDB-T1.
a.	Supply water sensing.
b.	Regulates to front panel selected temperature.
c.	Temperature Set Point Range: 90 to 180 degrees F (32 to 82 degrees C).
d.	Staging indicator lights.
e.	DC Power Relays.
f.	Hi-Limits:
1)	1st: Automatic reset 190 degrees F (88 degrees C).
2)	2nd: Manual reset 205 degrees F (96 degrees C). 
g.	Circulator Switching Relay: 10 amp maximum.
h.	Utility load control provisions.
i.	Steel Vessel: 2.2 gal (8.3 L). ASME "H" Stamp. Built in accordance with ASME Section IV and registered with the national board, under A.14.e.
j.	Supply temperature/pressure gauge.
k.	Safety Relief Valve: 30 psi (207 kPa).
l.	Modulates at a tighter temperature control.
m.	Standby boiler control, standby switch and boiler contact.
n.	Outdoor temperature sensing with outdoor reset capability. The target supply temperature ramps up as it is colder outside.
E.	Midsize Packaged Electric Boiler:
1.	Product: EZB-Single Phase Voltage TS Series Controlled Boiler as manufactured by Electro Industries, Inc.
2.	Model: EZB-T1-20-240-1, 240V. 20,000W, 83.33 A, 20KW, 1-Phase, 60Hz, 68,200 Btu/h 60A and 60A CB.
3.	Model: EZB-T1-24-240-1, 240V, 24,000W. 100A, 24KW, 1-Phase, 60Hz, 82,000 Btu/h, 80A and 60A CB.
4.	Model EZB-T1-28-240-1, 240V, 28,000W, 117A, 28KW, 1-Phase. 60Hz, 96,000 Btu/h, 80A and 80A CB.
5.	Model: EZB-T1-32-240-1, 240V, 32,000W, 134A, 32KW, 1-Phase, 60Hz, 109,000 Btu/h 80A and 100A CB.
6.	Model: EZB-T1-36-240-1, 240V,36,000W, 150A,36KW,1-Phase, 60Hz,122,800 Btu/h 100A and 100A CB.
7.	Dimensions (W x H x D): 26 x 33.5 x 14 inches (660 x 850 x 355 mm).
8.	Boiler Vessel Capacity 2.2 gal (8.32 L).
a.	Built in accordance with ASME Section IV and registered with the national board, under A.14.e.
9.	Construction: 
a.	Heavy duty sheet metal enclosure.
b.	Built-in supply pressure/temperature gauge.
c.	Safety relief valve 30 psi (207 kPa).
d.	Enhanced air eliminator.
e.	Expansion tank 4.5gal 135KBTU.
f.	Three speed circulator with isolation valves.
g.	Inlet and Outlet Connections1 inch MPT.
10.	Controls:
a.	Supply water sensing.
b.	Regulates to front panel selected temperature.
c.	Temperature Set Point Range: 90 to 180 degrees F (32 to 82 degrees C).
d.	Staging indicator lights.
e.	DC Power Relays.
f.	Hi-Limits:
1)	1st: Automatic reset 190 degrees F (88 degrees C).
2)	2nd: Manual reset 205 degrees F (96 degrees C). 
g.	Internal Circulator activates with contact closure across R-W.
h.	Utility load control provisions.
i.	Supply temperature/pressure gauge.
j.	Safety Relief Valve: 30 psi (207 kPa).
k.	Modulates at a tighter temperature control.
l.	Standby boiler control, standby switch and boiler contact.
m.	Outdoor temperature sensing with outdoor reset capability.
n.	Compatible with Electro Industries Zone control panels.
2.3	LARGE ELECTRIC BOILERS
A.	Large Electric Boiler:
1.	Product: TS CX Series Radiant Floor Midsize Boiler as manufactured by Electro Industries Inc.
2.	Model: EB-CX-45-60, 600 V, 45,000 W, 44 A, 45 kW, 3-Phase, 60 Hz, 153,500 Btu/h, 70 CB.
3.	Model: EB-CX-54-60, 600 V, 54,000 W, 52 A, 54 kW, 3-Phase, 60 Hz, 184,200 Btu/h, 80 CB.
4.	Model: EB-CX-42-48, 480 V, 36,000 W, 51 A, 42 kW, 3-Phase, 60 Hz, 143,300 Btu/h, 70 CB.
5.	Model: EB-CX-48-48, 480 V, 48,000 W, 58 A, 48 kW, 3-Phase, 60 Hz, 163,700 Btu/h, 80 CB.
6.	Model: EB-CX-54-48, 480 V, 54,000 W, 65 A, 54 kW, 3-Phase, 60 Hz, 184,200 Btu/h, 80 CB.
7.	Model: EB-CX-27-20, 208 V, 27,000 W, 75 A, 27 kW, 3-Phase, 60 Hz, 92,100 Btu/h, 100 CB.
8.	Model: EB-CX-40-20, 208 V, 40,500 W, 113 A, 40.5 kW, 3-Phase, 60 Hz, 138,100 Btu/h, 150 CB.
9.	Model: EB-CX-40-24, 240 V, 40,500 W, 98 A, 40.5 kW, 3-Phase, 60 Hz, 138,100 Btu/h, 125 CB.
10.	Model: EB-CX-40, 240 V, 40,000 W, 167 A, 40 kW, 1-Phase, 60 Hz, 136,400 Btu/h, 125 and 125 CB.
11.	Model: EB-CX-44, 240 V, 44,000 W, 184 A, 44 kW, 1-Phase, 60 Hz, 150,100 Btu/h, 125 and 125 CB.
12.	Series: Staging - EB-CX.
a.	Supply water sensing.
b.	Regulates to front panel selected temperature.
c.	Staging indicator lights.
d.	Heavy duty contactors.
e.	Hi-Limits:
1)	1st: Automatic reset 190 degrees F (88 degrees C).
2)	2nd: Manual reset 205 degrees F (96 degrees C).
f.	Circulator switching relay: 10 amp maximum.
g.	Thermostat or end switch connection; R and W.
h.	Utility load control provisions.
i.	Steel Vessel: 12 gal (45.4 L) ASME "H" Stamp. Built in accordance with ASME Section IV and registered with the national board, under A.14.e.
j.	Supply temperature/pressure gauge.
k.	Safety Relief Valve: 30 psi (207 kPa).
l.	Outdoor reset capability.
m.	Standby boiler control, standby switch and boiler contact.
n.	Outdoor sensing with outdoor reset capability. The target supply temperature ramps up as it is colder outside.
2.4	INDUSTRIAL ELECTRIC BOILERS
A.	Industrial Electric Boiler:
1.	Product: EB-NB Industrial Boilers as manufactured by Laars Heating Systems Company dba Electro Industries, Inc. 
2.	Description: 
a.	Wiring within the main cabinet shall be rated at 167 degrees F (75 degrees C) or higher. Aluminum or copper conductors shall be used for field installed power wiring. The boiler shall include provisions to connect directly to utility load control. The boiler shall include a dedicated 15 A 120 V single phase CB for controls circuit power, general service.
b.	Boiler shall be wired using (1) or (2) three phase feeds, depending on model KW size.
c.	Boiler shall have an SCCR rating of 100kA.
d.	The vessel shall be wrapped with 3 inches (76 mm) insulation. The vessel shall be enclosed in a 14 gauge (1.9 mm) fully enclosed cabinet. The cabinet and vessel shall be attached to a 10 gauge (3.4 mm) structural steel base. The base includes integral fork pockets for easy maneuvering during installation. Both base and cabinet shall be painted with powder coated enamel. The cabinet shall include a full length hinged door with an included lockable T-handle. The inside dead front panel shall include an integral door safety interlock switch.
e.	The vessel shall have a capacity of 40 gallons (151.4 L). The vessel shall be "H" stamped and National Board registered with a maximum working pressure of 30 psi (207 kPa) or 125 psi (862 kPa). The Vessel shall have 3 inches (76 mm) NPT threaded inlet and outlet nozzles. The outlet nozzle shall be located on the top of the vessel. The inlet nozzle shall be located on the left side of the vessel. The vessel shall include a 3 inch threaded NPT access port for vessel clean out.
f.	The immersion heating elements shall be installed in the top of the vessel and threaded into vessel for easy servicing; water draw-down not required. The heating elements shall be constructed using incoloy sheathing for long service life. The low-watt density heating elements shall be 30 inches (762 mm) in length. The cabinet shall have a split cover top for easy access to the heating elements. Contactors used to operate the heating elements shall be rated for 500,000 cycles.
g.	The boiler shall include mounted control enclosure. The control enclosure shall contain all boiler controls and adjustments. Operator is not required to enter main cabinet for resets or other functions. The control assembly shall include a multifunction display for boiler set up and fault display.
h.	An emergency stop switch circuit shall be included in the control assembly. 
i.	The boiler shall include a 5 year limited warranty on the vessel and a 1 year limited warranty on the parts. The boiler shall be fully tested using standard UL 834.
3.	Model: EB-NB-60-600, 600 V, 60 kW, 57.7 A, 5 elements at 12 kW, 204,728 Btu/h, 4 to 21 gpm flow rate at 20 degrees F delta T, 685 Ib (310 kg) boiler weight.
4.	Model: EB-NB-72-600, 600 V, 72 kW, 69.3 A, 6 elements at 12 Kw, 245,674 Btu/h, 4 to 25 gpm flow rate at 20 degrees F delta T, 690 lb (312 kg) boiler weight.
5.	Model: EB-NB-84-600, 600 V, 84 kW, 80.8 A, 7 elements at 12 Kw, 286,619 Btu/h, 4 to 29 gpm flow rate at 20 degrees F delta T, 695 lb (313 kg) boiler weight.
6.	Model: EB-NB-96-600, 600 V, 96 kW, 92.4 A 8 elements at 12 kW, 327,565 Btu/h, 4 to 33 gpm flow rate at 20 degrees F delta T, 700 Ib (317 kg) boiler weight. 
7.	Model: EB-NB-108-600, 600 V, 108 kW, 103.9 A, 9 elements at 12 Kw, 368,511 Btu/h, 4 to 37 gpm flow rate at 20 degrees F delta T, 705 lb (320 kg) boiler weight.
8.	Model: EB-NB-120-600, 600 V, 120 kW, 115.5 A, 10 elements at 12 Kw, 409,457 Btu/h, 4 to 41 gpm flow rate at 20 degrees F delta T, 710 lb (322 kg) boiler weight.
9.	Model: EB-NB-132-600, 600 V, 132 kW, 127 A, 11 elements at 12 kW, 450,402 Btu/h, 4 to 45 gpm flow rate at 20 degrees F delta T, 715 Ib (324 kg) boiler weight.
10.	Model: EB-NB-144-600, 600 V, 144 kW,138.6 A, 12 elements at 12 Kw, 491,348 Btu/h, 4 to 50 gpm flow rate at 20 degrees F delta T, 720 lb (326 kg) boiler weight.
11.	Model: EB-NB-160-600, 600 V, 160 kW, 154.0 A, 8 elements at 20 Kw, 546,942 Btu/h, 7 to 55 gpm flow rate at 20 degrees F delta T, 700 lb (317 kg) boiler weight.
12.	Model: EB-NB-180-600, 600 v, 180 kW, 96.2 A, 9 elements at 20 kW, 614,185 Btu/h, 7 to 62 gpm flow rate at 20 degrees F delta T, 705 Ib (320 kg) boiler weight.
13.	Model: EB-NB-200-600, 600 V, 200 kW, 192.5 A, 10 elements at 20 Kw, 682,428 Btu/h, 7 to 69 gpm flow rate at 20 degrees F delta T, 710 lb (322 kg) boiler weight.
14.	Model: EB-NB-220-600, 600 V, 220 kW, 211.7 A, 11 elements at 20 kW, 750,671 Btu/h, 7 to 76 gpm flow rate at 20 degrees F delta T, 715 Ib (324 kg) boiler weight.
15.	Model: EB-NB-240-600, 600 V, 240 kW, 230.9 A, 12 elements at 20 Kw, 819,914 Btu/h, 7 to 82 gpm flow rate at 20 degrees F delta T, 720 lb (326 kg) boiler weight.
16.	Model: EB-NB-260-600, 600 V, 260 kW, 250.2 A, 13 elements at 20 kW, 887,156 Btu/h, 7 to 89 gpm flow rate at 20 degrees F delta T, 725 Ib (329 kg) boiler weight.
17.	Model: EB-NB-280-600, 600 V, 280 kW, 269.4 A, 14 elements at 20 kW, 955,400 Btu/h, 7 to 96 gpm flow rate at 20 degrees F delta T, 730 Ib (331 kg) boiler weight.
18.	Model: EB-NB-280-600H, 600 V, 278 kW, 267.5 A, 7 elements at 20 kw and 6 elements at 23 kW, 948,575 Btu/h, 7 to 95 gpm flow rate at 20 degrees F delta T, 725 Ibs (329 kg) boiler weight 
19.	Model: EB-NB-300-600, 600 V, 300 kW, 288.7 A, 15 elements at 20 Kw, 1,023,642 Btu/h, 7 to 103 gpm flow rate at 20 degrees F delta T, 735 lb (333 kg) boiler weight.
20.	Model: EB-NB-300-600H, 600 v, 299 kW, 287.7 A, 13 elements at 23 kW, 1,020,230 Btu/h, 7 to 102 gpm flow rate at 20 degrees F delta T, 725 Ib (329 kg) boiler weight.
21.	Model: EB-NB-60-480, 480 V, 60 kW, 72.2 A, 5 elements at 12 kW, 204,728 Btu/h, 4 to 21 gpm flow rate at 20 degrees F delta T, 685 Ib (311 kg) boiler weight.
22.	Model: EB-NB-72-480, 480 V, 72 kW, 86.6 A, 6 elements at 12 kW, 245,674 Btu/h, 4 to 25 gpm flow rate at 20 degrees F delta T, 690 Ib (313 kg) boiler weight.
23.	Model: EB-NB-84-480, 480 V, 84 kW, 101.0 A, 7 elements at 12 Kw, 286,619 Btu/h, 4 to 29 gpm flow rate at 20 degrees F delta T, 695 lb (313 kg) boiler weight.
24.	Model: EB-NB-96-480, 480 V, 96 kW, 115.5 A, 8 elements at 12 kW, 327,565 Btu/h, 4 to 33 gpm flow rate at 20 degrees F delta T, 700 Ib (317 kg) boiler weight.
25.	Model: EB-NB-108-480, 480 V, 108 kW, 129.9 A, 9 elements at 12 Kw, 368,511 Btu/h, 4 to 37 gpm flow rate at 20 degrees F delta T, 705 lb (320 kg) boiler weight.
26.	Model: EB-NB-120-480, 480 V, 120 kW,144.3 A, 10 elements at 12 Kw, 409,457 Btu/h, 4 to 41 gpm flow rate at 20 degrees F delta T, 710 lb (322 kg) boiler weight.
27.	Model: EB-NB-132-480, 480 V, 132 kW, 158.8 A, 11 elements at 12 kW, 450,402 Btu/h, 4 to 45 gpm flow rate at 20 degrees F delta T, 715 Ib (324 kg) boiler weight.
28.	Model: EB-NB-144-480, 480 V, 144 kW, 173.2 A, 12 elements at 12 Kw, 491,348 Btu/h, 4 to 50 gpm flow rate at 20 degrees F delta T, 720 lb (326 kg) boiler weight.
29.	Model: EB-NB-160-480, 480 V, 160 kW,192.5 A, 8 elements at 20 Kw, 546,942 Btu/h, 7 to 55 gpm flow rate at 20 degrees F delta T, 700 lb (317 kg) boiler weight.
30.	Model: EB-NB-180-480, 480 V, 180 kW, 216.5 A, 9 elements at 20 kW, 614,185 Btu/h, 7 to 62 gpm flow rate at 20 degrees F delta T, 705 Ib (320 kg) boiler weight.
31.	Model: EB-NB-200-480, 480 V, 200 kW, 240.6 A, 10 elements at 20 Kw, 682,428 Btu/h, 7 to 69 gpm flow rate at 20 degrees F delta T, 710 lb (322 kg) boiler weight.
32.	Model: EB-NB-220-480, 480 V, 220 kW, 264.6 A, 11 elements at 20 kW, 750,671 Btu/h, 7 to 76 gpm flow rate at 20 degrees F delta T, 715 Ib (324 kg) boiler weight.
33.	Model: EB-NB-240-480, 480 V, 240 kW, 288.7 A, 12 elements at 20 Kw, 819,914 Btu/h, 7 to 82 gpm flow rate at 20 degrees F delta T, 720 lb (326 kg) boiler weight.
34.	Model: EB-NB-260-480, 480 V, 260 kW, 312.7 A, 13 elements at 20 kW, 887,156 Btu/h, 7 to 89 gpm flow rate at 20 degrees F delta T, 725 Ib (329 kg) boiler weight.
35.	Model: EB-NB-280-480, 480 V, 280 kW, 336.8 A, 14 elements at 20 kW, 955,400 Btu/h, 7 to 96 gpm flow rate at 20 degrees F delta T, 730 Ib (331 kg) boiler weight.
36.	Model: EB-NB-280-480H, 480 V, 280 kW, 334.4 A, 7 elements at 20 kW and 6 elements at 23 kW, 948,575 Btu/h, 7 to 95 gpm flow rate at 20 degrees F delta T, 725 Ib (329 kg) boiler weight.
37.	Model: EB-NB-300-480, 480 V, 300 kW, 360.8 A, 15 elements at 20 Kw, 1,023,642 Btu/h, 7 to 103 gpm flow rate at 20 degrees F delta T, 735 lb (333 kg) boiler weight.
38.	Model: EB-NB-300-480H, 480 V, 299 kW, 359.6 A, 13 elements at 23 kW, 1,020,230 Btu/h, 7 to 102 gpm flow rate at 20 degrees F delta T, 725 Ib (329 kg) boiler weight.
39.	Model: EB-NB-60-208, 208 V, 60 kW,166.5 A, 4 elements at 15 Kw, 204,728 Btu/h, 5 to 21 gpm flow rate at 20 degrees F delta T, 680 lb (308 kg) boiler weight.
40.	Model: EB-NB-75-208, 208 V, 75 kW, 208.2 A, 5 elements at 15 Kw, 255,910 Btu/h, 5 to 26 gpm flow rate at 20 degrees F delta T, 685 lb (311 kg) boiler weight.
41.	Model: EB-NB-90-208, 208 V, 90 kW, 249.8 A, 6 elements at 15 kW, 307,092 Btu/h, 5 to 31 gpm flow rate at 20 degrees F delta T, 690 Ib (313 kg) boiler weight.
42.	Model: EB-NB-105-208, 208 V, 105 kW, 291.5 A, 7 elements at 15 Kw, 358,274 Btu/h, 5 to 36 gpm flow rate at 20 degrees F delta T, 695 lb (315 kg) boiler weight.
43.	Model: EB-NB-120-208, 208 V, 120 kW, 333.1 A, 8 elements at 15 kW, 409,457 Btu/h, 5 to 41 gpm flow rate at 20 degrees F delta T, 700 Ib (317 kg) boiler weight.
44.	Model: EB-NB-135-208, 208 V, 135 kW, 374.7 A, 9 elements at 15 kW, 460,639 Btu/h, 5 to 47 gpm flow rate at 20 degrees F delta T, 705 Ib (320 kg) boiler weight.
45.	Model: EB-NB-150-208, 208 V, 150 kW, 416.4 A, 10 elements at 15 Kw, 511,821 Btu/h, 5 to 52 gpm flow rate at 20 degrees F delta T, 710 lb (322 kg) boiler weight.
46.	Model: EB-NB-165-208, 208 V, 165 kW, 458.0 A, 11 elements at 15 kW, 563,003 Btu/h, 5 to 57 gpm flow rate at 20 degrees F delta T, 715 Ib (324 kg) boiler weight.
47.	Model: EB-NB-180-208, 208 V, 180 kW, 499.6 A, 12 elements at 15 Kw, 614,185 Btu/h, 5 to 62 gpm flow rate at 20 degrees F delta T, 720 lb (326 kg) boiler weight.
48.	Model: EB-NB-60-240, 240 V, 60 kW, 144.3 A, 4 elements at 15 Kw, 204,728 Btu/h, 5 to 21 gpm flow rate at 20 degrees F delta T, 680 lb (322 kg) boiler weight.
49.	Model: EB-NB-75-240, 240 V, 75 kW, 180.4 A, 5 elements at 15 Kw, 255,910 Btu/h, 5 to 26 gpm flow rate at 20 degrees F delta T, 685 lb (310 kg) boiler weight.
50.	Model: EB-NB-90-240, 240 V, 90 kW, 216.5 A, 6 elements at 15 kW, 307,092 Btu/h, 5 to 31 gpm flow rate at 20 degrees F delta T, 690 Ib (313 kg) boiler weight.
51.	Model: EB-NB-105-240, 240 V, 105 kW, 252.6 A, 7 elements at 15 Kw, 358,274 Btu/h, 5 to 36 gpm flow rate at 20 degrees F delta T, 695 lb (315 kg) boiler weight.
52.	Model: EB-NB-120-240, 240 V, 120 kW, 288.7 A, 8 elements at 15 kW, 409,457 Btu/h, 5 to 41 gpm flow rate at 20 degrees F delta T, 700 Ib (317 kg) boiler weight.
53.	Model: EB-NB-135-240, 240 V, 135 kW, 324.8 A, 9 elements at 15 kW, 460,639 Btu/h, 5 to 47 gpm flow rate at 20 degrees F delta T, 705 Ib (320 kg) boiler weight.
54.	Model: EB-NB-150-240, 240 V, 150 kW, 360.8 A, 10 elements at 15 Kw, 511,821 Btu/h, 5 to 52 gpm flow rate at 20 degrees F delta T, 710 lb (322 kg) boiler weight.
55.	Model: EB-NB-165-240, 240 V, 165 kW, 396.9 A, 11 elements at 15 kW, 563,003 Btu/h, 5 to 57 gpm flow rate at 20 degrees F delta T, 715 Ib (324 kg) boiler weight.
56.	Model: EB-NB-180-240, 240 V, 180 kW, 433.0 A, 12 elements at 15 Kw, 614,185 Btu/h, 5 to 61 gpm flow rate at 20 degrees F delta T, 720 lb (326 kg) boiler weight.
57.	EB-NB Series boiler standard components.
a.	Supply and Return Water Temperature Sensing.
b.	Outdoor air temperature sensing for supply water temperature reset.
c.	Low return water temperature warning.
d.	Individually fused elements.
e.	Internal low water cut-off.
2.5	BOILER ACCESSORIES
A.	Zone Control:
1.	Construction/Operation: Provide enhanced communicating features provide the ability to stage the electric boiler based upon the connected zone capacity.
a.	Utility load control.
b.	Terminal block wiring, visual wiring layout.
c.	Indicator lights showing zone operation.
d.	24-volt, 40VA transformer 120/208/240 connection.
e.	Fuse protection.
f.	Priority option.
g.	Dual temperature operation.
h.	Applies to digital or standard thermostats.
i.	Dial switch, select each zone BTU capacity.
2.	Application: EB-ZEA-1 - with enclosure and 40VA transformer. Same as ZTA for EB-Mx and EB-Cx Series larger boiler, has enclosure and a second 40 VA transformer. Maximum of 4 zones.
3.	Application: EB-ZEA-2 - add additional 4 zones, enclosure and 40 VA. Use with EB-ZTA-1 or EB-ZEA-1, extends all features to 8 zones, priority and dual heat still relate to zone 1.
4.	Application: EB-ZES-1. Zone Valves only, has enclosure and a second 40VA transformer. Priority with dual temp feature. Maximum of 4 zones.
5.	Application: EB-ZTS-2 - add additional 4 zones, enclosure and 40 VA. Use with EB-ZTS-1, extends all features to 8 zones, priority and dual heat still relate to zone 1.
B.	Two Temperature Zone Controls:
1.	Handled as the priority zone on multi-zone; EB-ZEA-1.
2.	Priority switch on, zone 1 active - TS boiler automatically changes to supply water setting.
3.	All other zones are held off.
4.	With zone 1 satisfied or 60-minute timeout, the boiler automatically returns to the preset temperature and reacts to the other zones.
C.	Slab-Sensing Thermostats: Sensing and controlling the system based upon radiant floor surface temperature.
D.	Relays:
1.	Product: DPDT 24-volt switching relay. 24V coil. 120V, 10A, contact sets: Model EE-5053.
2.	Product: Pump Switching Relay: Model- EE-5051.
3.	Product: Multi-Boiler Relay: Model EB-C-STG5.
4.	Product: Switchover to Standby, Total Run Time Relay: Model SOT-1.
E.	Wiring Adapters:
1.	Product: Single Feed Bus for 2 CB's (SQ-D CB) Relay: Model 5701. 
2.	Product: Single Feed Bus for 3 CB's (SQ-D CB) Relay: Model 5702. 
F.	Diagnostic Tools:
1.	Product: WarmFlo Analyzer, now applicable to all TS Series: Model WF-ANZ7.
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.
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