Unit installation

10
in the system. Before replacing fuse, the cause of the failure
must be located and corrected.
IMPORTANT
Current draw in excess of one amp or
shorting any thermostat wires can
cause permanent thermostat failure.
The installer must provide the power used to operate both
the thermostat and its control circuits. This power source
must provide one amp of continuous current at 12 VDC.
The thermostat is pre-wired at RV Products with two quick
connect electrical receptacles. There is one 9 pin receptacle
carrying the control wires required to operate the heat pump,
and a 3 pin receptacle carrying the two power supply leads
and the one furnace control lead.
The thermostat 9 pin receptacle mates with a receptacle on
one end of the RV Products 35' pre-wired thermostat harness.
See Component Match-Up Section for harness part number
and description.
The thermostat harness does not include the wiring for the
3-pin plug. Should the installer desire a total plug in system,
then the mate and pins for this connection must be
purchased separately. Both the receptacle and the pins are
manufactured by AMP (Aircraft Marine Products, Inc.,
Harrisburg, PA). In most cases the parts can be obtained
through a local supply house.
The AMP part numbers are:
1) 3 pin male receptacle #7-480700-0
2) Female pin (for male receptacle) #350218-1
CHART 2
Should the installer desire to hard wire this connection rather
than purchasing the receptacle, the three pin connector can
be cut from the wire ends, the wires stripped and spliced to
complete the required connections. For further wire
identification and function, reference Chart 2.
IMPORTANT
When using wire nuts to complete electrical connections,
always apply a U.L. approved electricians tape and secure the
wire nuts in a workmanlike manner.
At the thermostat, the connection is completed with a square
9 pin receptacle that slides together and snap-locks in place.
When making this connection:
1)
verify that the connectors are properly aligned.
2) do not use excessive force when joining the
connectors.
3) verify that the connectors have snapped together on
both sides.
The thermostat umbilical attaches to the unit with a rain-tight
fitting. To install, remove the ring-nut from the rain-tight fitting
and insert the wire end and fitting into the hole in the wirebox
side. The ring-nut will now slide over the wire end and reinstall
onto the rain-tight fitting threads. Tighten securely. The wire
end plugs into the receptacle on the wirebox printed circuit
board. Insure that the plug “snap-locks” into the receptacle.
Routing of the thermostat wiring harness must comply with all
local and national electrical codes. Collect any excess
thermostat harness in the air conditioner mounting
compartment. Coiling the excess harness into 3" diameter
circles or larger is acceptable.
THERMOSTAT MOUNTING
Follow the instructions packed with the thermostat to select a
location for thermostat mounting. Pay particular attention to
choose a location which is not isolated from air currents and
not subject to direct discharge from a cold air register.