Installation Manual

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WHL-019 REV. 12.17.14
B. LINE VOLTAGE CONDENSATE OUTPUT
The heater has the capability of supplying power to a condensate pump. The connection is 120 VAC +/- 10% 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.
HTP 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”.
Figure 22 – 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.
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.