Electrical Supply
24 Volt Control precautions
(Applies to Honeywell control equipped heaters only).
Important:
The electrical controls used inside the gas con-
trol/thermostat of this water heater are
polarity sensitive
.
Ensure the electrical supply is connected correctly in the
receptacle box. Failure to connect correctly will prevent the
unit from functioning properly (see Figure 17). Before per-
forming any electrical service work, label all wires to avoid
connection errors. If wiring has to be replaced, use only
TYPE SPT-1
wire, (except igniter wires). If there is a prob-
lem with igniter wires, replace igniter assembly in its entire-
ty. In locations where a sump pump failure, flooding or expo-
sure to water may be present, a ground fault receptacle is
recommended.
Important:
Do not use an extension cord to connect the
water heater to an electrical outlet.
•
Ensure that the water heater and the outlet are proper-
ly grounded. Failure to properly ground the heater can
prevent the unit from operating.
•
Ensure that the water heater is installed in accordance
with prevailing provisions of local codes and the latest
edition of
"Canadian Electrical Code (CAN/CSA
C22.1), Part I"
(Canada) or
"National Electrical
Code" (NFPA 70)
(U.S.A.).
Before applying power to the water heater, always make
sure:
•
The voltage and frequency correspond to that specified
on the water heater wiring diagram.
•
The electrical circuit has the proper overload fuse or
breaker protection.
•
Fill the tank with water and check all connections for
leaks. Open the nearest hot-water faucet and let it run
for 3 minutes to purge the water lines of air and sedi-
ment and to ensure complete filling of the tank. The
electrical power may then be turned on. Verify proper
operation after servicing.
Note:
Always reference the wiring diagram for the correct
electrical connections.
The maximum wire length from transformer to the water
heater is 15.2m (50 ft.) of
Type SPT-1
or equivalent.
WARNING
When the unit is plugged in, 24VAC is pres-
ent at the electric connections of the gas
control/thermostat.
WARNING
Electrical Shock Hazard
• Disconnect power before
servicing.
• Replace all parts and panels
before operating.
• Failure to do so can result in
electrical shock.
Figure 17
Wiring Diagram - Honeywell (24 Volt)
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