99
20 08 CONTESSA
APPLIANCES — 4
AIR CONDITIONING - ROOF
The roof air conditioners operate from 120
Volts AC supplied by shore power or the
generator. The wall thermostat requires 12 Volt
DC to operate.
NOTE:
The air conditioning system freezes
moisture in the air. It is recommended
to set the blower fan speed to high when
operating in high humidity.
NOTE:
There are ambient air temperature
limitations in Heat Pump mode. The
roof air conditioner will not operate
in Heat Pump mode with ambient
temperatures of 30º F. and below.
Operations
Roof air conditioner operation
requirements:
120 Volts AC from either shore power or
the generator.
The interior house power is ON and the
house batteries are charged.
Fan Operation:
Circulate interior air by using the roof air
conditioner blower. The fan speed controls
the roof air conditioner blower speed in the
following modes: Fan, Cool or Heat Pump.
Press the MODE
button repeatedly
until Fan is
displayed.
Press the FAN button
to select the desired
fan speed.
Air Conditioner
Operation:
Press the MODE button
repeatedly until COOL
is displayed.
Select desired zone.
Set desired fan speed
by pressing the FAN
button.
Set desired cooling
temperature by pressing
the UP or DOWN
buttons.
NOTE:
The compressor will engage
approximately two minutes after blower
motor activation to prevent accidental
compressor operation against high
pressure.
Heat Pump Operation
Heat Pump mode offers heat by using
the air conditioner as a heat source. The air
conditioning principle is reversed, supplying
heated air to the ceiling registers instead of
refrigerated air. There are ambient temperature
limitations in Heat Pump mode.
NOTE:
The roof air conditioner will not operate
in Heat Pump mode with ambient
temperatures at or below 30º F.
Aux Heat Mode:
If the Heat Pump mode is selected at or
below 30° F, or if operating in Heat Pump
mode and temperature drops to 30º F, the air
conditioner will stop Heat Pump operation and
Aux Heat will be displayed. The Aqua-Hot will
be selected as the auxiliary heat source and will
begin operation. The Aqua-Hot will remain the
primary heat source until ambient temperature
rises above 42º F.
When ambient temperature is between 30 and
42º F, a defrost cycle is initiated approximately
every 40 minutes of compressor operation. The
blower motor will stop for ve minutes and
Defrost will be displayed. After the defrost
cycle, the Heat Pump operation will resume.
NOTE:
The Aqua-Hot must be on for the Aux
Heat to function. Turn on the Aqua-Hot
diesel burner or electric element. The
exchanger blowers automatically begin
operation in the Auxiliary Heat mode.
Heat Pump Operation:
Turn ON the interior
house power.
Slide the ON/OFF
switch to the ON
position.
Press the MODE button
repeatedly until HEAT
PUMP
is displayed.
FAN
050200b
COOL
050200b
HEAT
PUMP
050200b
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