8 - ELECTRICAL CONNECTIONS
Electrocution Hazard! HIGH VOLTAGE - Connections in terminal block M1 are high voltage (120V / 60Hz).
Before making connections, verify appliance is disconnected from power supply. Respect the input polarity on
terminal block M1: L (LINE) - N (NEUTRAL). Failure to follow these instructions WILL result in death or serious
injury.
Electrical shock hazard. Turn OFF electrical power supply at service panel before making electrical
connections. Failure to do so could result in death or serious injury.
Model Size
Power Supply
Power Consumption
Internal Fuse (Qty. 2)
Electrode Spark Gap
8.1 General
Electrically bond boiler to ground in accordance with
requirements of authority having jurisdiction. Refer to:
• USA- National Electrical Code, ANSI/NFPA 70.
• Canada - Canadian Electrical Code, Part I, CSA C22.1:
Safety Standard for Electrical Installations.
• Install all wiring in accordance with requirements of National
Electrical Code and any additional national, state, or local
code requirements having jurisdiction.
• In Canada, installation must conform to CSA C22.1
Canadian Electrical Code Part 1 and any local codes.
• All wiring shall be N.E.C. Class 1.
• Boiler shall be electrically grounded in accordance with the
National Electrical Code, ANSI/NFPA No. 70-latest edition.
• Boiler requires a 120V 60Hz power supply. Ensure electrical
supply is polarized.
• There shall only be one common isolator, providing complete electrical isolation, for boiler and any external controls. Using
PVC insulated cable 12 AWGx3C 221°F (105 ºC).
8.2 Install Room Thermostat
Install room thermostat on inside wall. Do not install where it will be influenced by drafts, hot or cold water pipes, lighting fixtures,
television, sun rays or near a fireplace.
8.3 Electrical Connections
• Boiler requires 120V 60Hz power supply. Verify electrical supply is polarized.
• Boiler shall be grounded and on dedicated circuit.
• Shall be one common isolator, providing electrical isolation for boiler and any external controls. Using PVC insulated cable
18 AWGx3C 221°F (105°C).
• All wiring must be installed in accordance with requirements of the National Electrical Code and any additional national,
state, or local code requirements having jurisdiction. All wiring must be N.E.C. Class 1.
• Canada, installation must conform to CSA C22.1 Canadian Electrical Code Part 1 and any local codes.
• If replacing original boiler wiring use only TEW 105°C or equivalent.
• If appliance is connected to in floor system, install limit thermostat to prevent latter from overheating.
If overheating occurs or gas supply fails to shut off, do not turn off or disconnect electrical supply to pump. Shut
off gas supply at location external to the boiler.
240012485 REV A [12/30/2018]
!
!
WARNING
1.48 GA
60GA
120 V - 60 Hz
173 W
182 W
F3.15 A
1/8" to 3/16" [3.1 mm to 4.7 mm]
DANGER
FIGURE 8-1 Electric Knockouts Bottom Of Boiler
Electric
Knockouts
NOTICE
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