John Wood Superflue Power Vent (75 Gallon) - Manual (Page 18)

• Must not be capped, blocked, plugged or contain any
valve between the relief valve and the end of the dis-
charge line.
• Must terminate a maximum of 300mm (12 in.) (Canada)
or 150mm (6 in.) (U.S.A.) above the floor.
• Must be capable of withstanding 121°C (250°F) without
distortion.
• Must be installed to allow complete drainage of both the
valve and discharge line.
Electrical Supply
A three-wire cord and plug is provided with this water
heater. The plug shall be connected into an electrically
grounded, 120 VAC, 60 Hz, 15 Amps, fused receptacle.
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. Before performing any elec-
trical service work, label all wires to avoid connection errors.
If wiring has to be replaced, use only TYPE TEW 105°C
wire, (except igniter wires). If there is a problem with igniter
wires, replace igniter assembly in its entirety. In locations
where a sump pump failure, flooding or exposure 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, or, in the
absence of such, 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 outlet has the proper overload fuse or
breaker protection.
– 18 –
WARNING
When the unit is plugged in, 120VAC 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
death or electrical shock.
Figure 19 Wiring Diagram - (WDER 2000N)
E1
L1 N GND
E2
E3
E4
E5
FLAME
SENSOR GAS
VALVE
BLOWER
EXTERNAL MONITOR LIGHT
HIGH LIMIT
SWITCH
PRESSURE
SWITCH
IGNITER
BEIGE
HOUSING
Figure 18 Wiring Diagram - White-Rodgers Control