Part 6 - Wiring; Line Voltage Input; Line Voltage Condensate Input; Low Voltage Outdoor Sensor Input - Westinghouse WGR-076 Series Installation, Start-Up, Maintenance, Parts, Warranty

Part 6 - Wiring

To avoid electrical shock, turn off all power to the heater prior
to opening an electrical box within the unit. Ensure the power
remains off while any wiring connections are being made.
Failure to follow these instructions could result in component
or product failure, serious injury, or death. Such product
failure IS NOT covered by warranty.
Jumping out control circuits or components WILL VOID
product warranty and can result in property damage, personal
injury, or death.
A. Line Voltage Input
The heater must be wired to a 115 volt circuit by a qualified
electrician. It is recommended that the heater be wired on its
own circuit to minimize the possibility of circuit failure due to
outside clauses. The heater requires a maximum of 8 amps at
120 volts in use.
Figure 17 - Line Voltage Wiring
B. Line Voltage Condensate Input
The heater has the capability of supplying power to a
condensate pump. The connection is 115 VAC + 10% / - 15%
at a max of 2 amps. Power is supplied to the pump only when
the heater is connected to power, and the power switch is in
the on position.
C. Low Voltage Outdoor Sensor Input
The heater has the capability of an outdoor reset. Connecting
an outdoor sensor allows the heater to operate at optimum
efficiency. Westinghouse offers an outdoor sensor, p/n 7250P-
319.
The outdoor sensor must be a 12K NTC sensor. Use a minimum
22 AWG wire for runs of 100 feet or less and minimum 18 AWG
wire for runs up to 150 feet. Instructions are included with the
outdoor sensor to correctly mount the sensor on the exterior
surface of the building. It is preferable to mount the sensor
on the north side in an area that will not be affected by direct
sunlight but will be exposed to varying weather conditions.
Connect the outdoor sensor to terminals marked "Outdoor".
It is of extreme importance that this unit be properly
grounded. It is very important that the building system
ground is inspected by a qualified electrician prior to making
this connection. Electrical power must only be turned on
when the heater is completely filled with cold water. Failure
to follow these instructions could result in component or
product failure, serious injury, or death.
Figure 18 - Low Voltage Wiring
Label all wires prior to disconnecting them when servicing
the heater. Wiring errors can cause improper and dangerous
operation. Failure to follow these instructions may result in
property damage or personal injury.
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WHL-001 Rev. 3.16.15