Munchkin Gas-Fired Hot Water Boiler Installation Manual download pdf (Page 46)

GAS-FIRED HEATER Installation Manual

PART 9: FIELD WIRING

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.

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.

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Munchkin Gas-Fired Hot Water Boiler Installation Manual Page 46

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