4
4. If the heat pump is equipped with an optional
evaporator condensate pump, 1/2” I.D. hose
must be provided that runs from the 14” square
opening, through the vehicle ceiling and down
the side wall. This allows the condensate to
drain under the vehicle. The hose must not be
allowed to kink shut while making a bend.
Connect the top end of the drain hose to the
barbed fitting shown in Figure 4.
V. ELECTRICAL WIRING
ROUTING 115 VAC Wiring
Following Airxcel’s high voltage wiring
specifications and all local and national electrical
codes, route the 115 VAC supply wiring from its
power source to the wire box.
High Voltage Wiring Specifications based on
Minimum Overcurrent Protective Device Amperage
– (see upper unit nameplate)
1. U.L. requires copper conductors only with
minimum #12 AWG when using the minimum
recommended overcurrent protection device.
Higher rated devices or longer wiring runs will
require #10 AWG or greater copper conductors.
2. To prevent voltage drops greater than 10%
during starting loads, adhere to the following
guideline:
For lengths greater than 50’, use #10 AWG or
larger copper conductors. Match to the
overcurrent protection device provided.
Circuit Protection – Refer to upper unit
nameplate.
Electrical Wiring High Voltage Wiring
Specification is based on Overcurrent
Protection Device rated higher than the
minimum required (see upper unit nameplate).
Follow all local and NEC (National Electrical Code)
for proper sizing of wire AWG based on Overcurrent
Protection Device selected and the length of the
wiring run to the heat pump.
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