GAS-FIRED HEATER Installation Manual
PART 9: FIELD WIRING
WARNING
ELECTRICAL SHOCK HAZARD — For your safety, turn off electrical power supply at service entrance panel before making any electrical connections to avoid possible electric shock hazard. Failure to do so can cause severe personal injury or death.
NOTICE
Wiring must be N.E.C. Class 1.
If original wiring as supplied with heater must be replaced, use only TEW 105 °C wire or equivalent.
Heater must be electrically grounded as required by National Electrical Code ANSI/NFPA 70 — latest edition.
A.INSTALLATION MUST COMPLY WITH:
1.National Electrical Code and any other national, state, provincial or local codes or regulations.
2.In Canada, CSA C22.1 Canadian Electrical Code Part 1, and any local codes.
B.FIELD WIRING
For you convenience we have located the electri- cal connection of the Munchkin Contender on the
front right hand side of the unit. The electrical junc- tion box has a 24 volt terminal compartment and 120 volt terminal compartment. Each terminal con- nection is clearly marked to assure correct instal- lation.
C.LINE VOLTAGE WIRING
1.Connect 120 VAC power wiring to the line voltage terminal strip located inside the electric junction box, as shown in figure 9.5.
2.Wire the Heater Primary Circulator (P1) to the terminal strip. See wiring diagram in this section.
D.THERMOSTAT
1.Connect room thermostat or end switch
2.Install thermostat on inside wall away from influences of drafts, hot or cold water pipes, lighting fixtures, television, sunrays or fireplaces.
3.Thermostat anticipator (if applicable):
a.If connected directly to heater, set for 0.1 amps.
b.If connected to relays or other devices, set to match total electrical power requirements of connected devices. See specifications of the device and thermostat instructions for details.
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