CONQUEST 90 - Fossil Fuel Kit (RXPF • F02)

Indoor thermostat set to
"EMERG".
1. A call for heat at the indoor
thermostat operates the
furnace only.
2. The heat pump is off.
Outdoor thermostat toggle switch
set to ''HEAT PUMP ONLY".
1. A call for heat or cool at the
indoor thermostat operates the
heat pump only.
2. The indoor blower operates on
the cooling speed.
See wiring diagrams on pages 110
and 111.
FOSSIL FUEL KIT (RXPF • F02)
The RXPF • F02 fossil fuel kit with
solid state control board is designed
to meet all TVA requirements and
provides for automatic 2nd stage
operation ("W2") of the gas furnace.
The furnace control board, heat
pump low voltage controls,
thermostat, all other sensors and
controls connect to the solid state
control board.
LOCATION AND WIRING
Mount the F02 kit wiring board
indoors near the furnace, and F02
outdoor thermostat enclosure as with
the F01 system. Make all other
wiring connections according to its
wiring diagram. Install the rest of the
system as with the RXPF • F01
instructions.
THERMOSTAT OPERATIONS
Indoor thermostat set to "HEAT";
outdoor thermostat toggle switch
set to "NORMAL OPERA T/ON".
1. Call for 1st stg. heat at the
indoor thermostat.
2. The heat pump runs and the
indoor blower operates in
the cooling speed when the
outdoor temperature is above
the RXPF • F02 set point.
3. The furnace only operates when
the outdoor temperature is
below the RXPF • F02 set point.
The indoor blower does not run
during the furnace warm-up
period.
4.
A call for 2nd stg. heat operates
the furnace only and lights the
Aux Ht. indicator. The heat
pump is off.
5. During defrost the plenum
switch cycles the furnace,
and the blower runs in the
cooling speed continuously.
IMPORTANT: The outdoor
temperature must be ABOVE the
RXPF - F02 set point. If not, the
furnace heats on a call for cooling.
Indoor thermostat set to
"EMERG".
1. A call for heat at the indoor
thermostat operates the
furnace only.
2. The heat pump is off.
3. The thermostat emergency heat
light is on.
Outdoor thermostat toggle switch
set to "HEAT PUMP ONLY".
1. A call for heat or cool at the
indoor thermostat operates the
heat pump only.
2. The indoor blower operates in
the cooling speed.
IMPORTANT: The manufacturer
recommends installing the
Plenum Sensor to provide comfort
to the homeowner during heat
pump defrost. However, if not
installing the Plenum Sensor,
ALWAYS
CONNECT "W2" ON
THE WIRING BOARD TO THE
HEAT
PUMP.
See wiring diagrams on pages 112
and 113.
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