V. SECURING THE HEAT PUMP TO THE ROOF
A mounting frame is supplied with the ceiling assembly.
Follow the steps below to secure the heat pump to the
roof. Refer to Figure 4.
A.
Locate the heat pump mount gasket over the 356mm to
381mm square opening in the roof.
B.
Install the ceiling assembly mount frame using the
four bolts, washers and springs found with the ceiling
assembly.
C.
Proper tension has been achieved for each bolt when
the spring coils have just come together (See Figure
4). The upper unit has now been properly installed with
optimum gasket compression.
D.
If the heat pump is equipped with an optional evaporator
condensate pump, a 13 mm I.D. hose must be provided
that runs from the 356 mm square opening, through the
vehicle ceiling and down the side wall to allow water to
drain under the vehicle. The hose must not be allowed
to kink shut while making a bend. Connect the top end
of the drain hose to the barbed fitting shown in Figure 4.
VI. ELECTRICAL WIRING
ROUTING 230/240 VAC Wiring - See Figure 4
Following high voltage wiring specifications and all local
and national electrical codes, route the 230/240 VAC
supply wiring from its power source through the strain
relief and connect to the power strip. Tighten screws to
8 Kg-centimeters torque. Some OEM units are equipped
with a pre-wired power umbilical with plug which will
snap-lock into the OEM supplied mating part.
High Voltage Wiring Specifications
Refer to most recent Australian/NZ Standard for Wiring
Rules
INSTALLER MUST PROVIDE A TWO POLE
DISCONNECT FOR ACTIVE AND NEUTRAL.
MAXIMUM OVERCURRENT PROTECTIVE DEVICE
FOR THESE UNITS: 15 AMPS
DANGER – SHOCK HAZARD!
MAKE SURE THAT ALL POWER SUPPLY TO THE UNIT IS
DISCONNECTED BEFORE PERFORMING ANY WORK ON
THE UNIT TO AVOID THE POSSIBILITY OF SHOCK INJURY
OR DAMAGE TO THE EQUIPMENT.
DANGER! -
WHEN USING NON-METALLIC SHEATH
CABLES (ROMEX, ETC.), STRIP SHEATH BACK TO EXPOSE
100-150mm OF THE SUPPLY LEADS.
STRIP THE INDIVIDUAL WIRE LEAD ENDS FOR WIRE
CONNECTION (ABOUT 19mm BARE WIRE). INSERT THE
SUPPLY WIRES INTO THE ELECTRICAL CONNECTOR
CLAMP. SHEATH MUST PROTRUDE PAST THE CLAMP
BUSHING INSIDE THE BOX. MAKE SURE SHEATH CABLE
IS CENTERED IN CLAMP BEFORE TIGHTENING CLAMP ON
SHEATH CABLE!!
DO NOT OVER TIGHTEN!!
THIS COULD RESULT IN
PINCHING THROUGH THE PLASTIC WIRE INSULATION
AND CAUSE SHORTING OR “HOT” WIRES TO GROUND
(SHOCK HAZARD). THE CLAMP IS INTENDED FOR STRAIN
RELIEF OF THE WIRES. SLIGHT PRESSURE IS USUALLY
SUFFICIENT TO ACCOMPLISH THIS.
IF OTHER THAN NON-METALLIC CABLES ARE USED FOR
SUPPLY CONDUCTORS, APPROPRIATE STRAIN RELIEF
CONNECTORS OR CLAMPS SHOULD BE USED.
IN NO CASE SHOULD CLAMPING OR PINCHING ACTION BE
APPLIED TO THE INDIVIDUAL SUPPLY LEADS (NEUTRAL
AND “HOT” WIRES).
ROOFTOP UNIT
MOUNTING GASKET
MOUNTING SPRING
CEILING ASSEMBLY PATCH CORD
FROM UPPER UNIT CONTROL
OPTIONAL POWER PLUG
OPTIONAL CONDENSATE DRAIN ADAPTER
POWER CONNECTION STRIP
MOUNTING FRAME
ROOF STRUCTURE
POWER CONNECTION STRIP
WITHOUT OPTIONAL POWER PLUG
WASHER
MOUNTING BOLT
FIGURE 4
4