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NOTE: The auxiliary heat position is only used if:
1) You have a factory installed furnace operating
from the heat pump system thermostat.
2) The outside temperature is above 40 degrees and
you wish to operate your furnace.
3. For quick interior warm up.
4. There is no 115 volt AC power available to operate
your heat pump and you must operate the furnace
for your comfort.
Fan:
To circulate air without heating or cooling:
1) Set the SYSTEM SWITCH to OFF.
2) Set the FAN SWITCH to ON.
Hi/Low:
HIGH: Fan speed position
LOW: Fan speed position
C. THERMOSTAT WIRING
Thermostat wiring for DIGITAL thermostat: Route the
(10) conductor cable from the heat pump to the thermostat
location. Route a two conductor cable from the coach's 12
volt DC power source to the thermostat location. Connect
12 volt positive lead to the green wire on the thermostat
cable.
Connect the 12 DC volt negative lead to the brown lead.
Secure both connections using wire nuts.
At the thermostat location, leave about six (6") inches of
cable extending through the wall. Plug the thermostat
cable into the thermostat connector cable.
When an auxiliary furnace is used with the heat pump, a
single wire conductor must be routed from the furnace to
the thermostat location. Connect this wire from the furnace
to the violet pigtail at the thermostat and secure with wire
nut. Tuck the excess wire back into the wall and fill opening
with insulation to prevent drafts that could affect the
thermostat operation. Using the two screws provided,
secure the thermostat to the wall
NOTE: The furnace has two wires for thermostat connec-
tions. One wire should be marked 12V DC or (+) and the
other wire may be unmarked, or labeled "thermostat". The
wire marked 12V DC or (+) should be capped and not used
with the heat pump setup. The wire marked "thermostat"
or the unmarked wire is the wire to connect to the violet
thermostat pigtail. See Wiring Diagram on Page 8.
D. DIGITAL THERMOSTAT OPERATION
Your air conditioner is operated from the control panel of
the electronic wall thermostat. When the furnace is con-
nected to this thermostat, it will operate from the same
control panel.
Identification and operational descriptions for all control
panel switches and display are listed below:
1) Liquid Crystal Display: This display will be illumi-
nated any time the system is in operation.
The display shows the operator both the mode of the
display (indicated by the arrow at the left side of the
display), and the temperature for that mode.
There are three display modes: ACTUAL, COOL and
HEAT.
The operator may choose the mode he desires to view
by depressing the "MODE" switch. Each time the
MODE switch is depressed, the display advances to
the next mode. If the display is left in either COOL or
HEAT, the thermostat will automatically return the
display to ACTUAL in approximately three minutes.
A description of the three modes is:
ACTUAL: When in actual mode, the display is indicat-
ing current room temperature.
COOL SET: When in COOL mode, the display is
indicating the current cooling set-point temperature.
At this time the cooling system set-point temperature
may be adjusted up or down to meet the individual's
comfort level. See "Adjusting Set-point" for further
instructions.
HEAT SET: When in the HEAT mode, the display is
indicating the current heating system set-point tem-
perature. At this time, the heating system set-point
temperature may be adjusted up or down to meet the
operator's comfort level. See "Adjusting Set-Point" for
further instructions.
All three display modes can be accessed without
affecting the operation of the system. The system
operation will remain normal unless a change is made
to the set-point to force a change in the system
operation.
2) System Switch: The system switch has four
positions to control the operation of the heating and
cooling systems. They are as follows:
COOL: When in the COOL position, the compressor
will cycle from the cooling system set-point. Blower
operation will be controlled by the position of the
Cooling Fan Switch.
HEAT: When in the heat position, the heating system
will cycle from the heating system set-point. The
heating blower will operate per the heating system
manufacturer specifications.
OFF: When in the OFF position, no thermostat or
system operation will occur. The liquid crystal will
indicate room temperature until backup power is de-
pleted (approximately 2 minutes).
AUXILIARY HEAT:
1) Set the system switch to AUX. HEAT.
2) Set the FAN switch to AUTO.
NOTE: The AUXILIARY HEAT position is only used if:
1) You have a factory installed furnace operating
from the heat pump system thermostat.
2) The outside temperature is above 40 degrees and
you wish to operate your furnace.
3) For quick interior warm-ups.
4) There is no 115 volt AC power available to operate
your heat pump and you must operate the furnace for
your comfort.
6
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