Operating instructions
7
Type 3254.331 Heat Pump With Mechanical Controls Installation And Operating Instructions
FIG. 15
Slide Air Box over Controls
Disconnect 220-240 volt AC. Failure to follow
these instructions could create a shock hazard
causing death or severe personal injury.
WARNING
!
If bolts are left loose there may not be an ad-
equate roof seal or if over tightened, damage
may occur to the air conditioner base or ceil-
ing template. Tighten to torque specifications
listed in this manual.
CAUTION
FIG. 14
Route Power Supply
Through Romex Con-
nector
Plug Conduit
Into Switch
Box
Install
Cover
b. EVENLY tighten the three bolts to a torque
of 4.5 to 5.0 NM. This will compress the roof
gasket to approximately 13 cm. The bolts
are self locking so over tightening is not
necessary.
Reach up into the return air opening and pull the re-
maining wires down.
1. Connection of 220-240 VAC (refer to FIG. 14)
G. Wiring The System
H. Air Distribution Box Installation
1. Remove the two return air grills and filters.
2. Slide the front end of the air box over the shafts of
the thermostat and selector switch. See FIG. 15.
a. Route power supply line through Romex con-
nector into junction box. Tighten connector,
being careful not to pinch or short wires.
b. Connect white to white; black to black; and
green to green or bare copper wire using appro-
priate sized twist connectors.
c. Tape the twist wire connectors to the supply
wire to assure they don't vibrate off.
d. Push the wires into the box.
e. Install the cover onto the junction box.
f. Plug the electrical conduit from the upper unit
into the mating switch box connector. See FIG.
14.
3. Install four screws through legs in air box into the
pre-punched holes in the ceiling template.
4. Install the return air grills and filters by simply push-
ing them into place.
5. Install the two knobs provided on the ends of the
thermostat and selector switch shafts.
6. The power supply to the air conditioner and caravan
may now be turned “ON”.
7. Your air conditioner is now installed and ready for
operation. Please read the following instructions be-
fore attempting to run the unit.
OPERATING INSTRUCTIONS
A. Controls
1. The Selector Switch has ten positions including
"OFF". This controls fan speed, heating mode, and
cooling modes. See FIG. 16.
MED
HI LO
COOL
HEAT
HI
MED
LO
OFF
HI
MED
LO
FAN
FIG. 16
WARM
COOL
2
3
4
5
6
HEAT PUMP
HEAT PUMP
By Dometic
By Dometic
Selector Switch
2. The thermostat controls the compressor ON/OFF
operation in cooling temperature range of 18 to 35
C°. See FIG. 17.
FIG. 17
Thermostat