Electrical Wiring - RV Products Airxcel 45000 Installation, Operation And Maintenance Instructions

B. If a roof vent opening is not used, a new opening
(See Figure 1) will have to be cut into the vehicle
roof. A matching opening will also have to be cut into
the interior vehicle ceiling. If the ceiling opening is
carpeted, snagging could occur. After the opening in
the roof and interior ceiling are the correct size, a
framed support structure must be provided between
the exterior roof top and the interior ceiling. The
reinforced frame structure must
following:
1. Capable of supporting both the weight of the roof
top Air Conditioner and the interior ceiling
assembly.
2. Capable of holding or supporting the roof outer
surface and interior ceiling apart, so that when the
roof top Air Conditioner and ceiling assembly are
bolted together, no collapsing occurs.
Airxcel, Inc. recommends that the spacing from the
vehicle roof top to the interior ceiling be no less than
25mm. A typical support frame is shown in Figure 1.
The frame must provide an opening through the
frame to allow passage for the power supply wiring.
Route the supply wiring through the frame at the
same time the support frame is being installed.
IMPORTANT – Allow 610mm of supply wiring
through the support frame (working length).
C. The Air Conditioner must be mounted as near level
front to rear and side to side as possible when the
vehicle is parked level. Figure 2 shows the maximum
allowable degree deviations mounting degrees from
total surface flat plane).
If the roof of the vehicle is sloped such that the Air
Conditioner cannot be mounted within the maximum
allowable degree deviations, an exterior leveling
shim will need to be added to make the roof top air
conditioner level. A typical leveling shim is shown in
Figure 3.
Once the Air Conditioner has been leveled, some
additional shimming may be required above the
interior ceiling assembly.
NOTE: The Air Conditioner and interior ceiling
assembly must have
relationship before they are secured together.
After the support frame is installed, seal off all gaps
between the frame and both the roof exterior and the
supply wiring.
D. After the mounting hole is properly prepared,
remove the carton and shipping pads from around
the Air Conditioner. Carefully lift the unit to the top of
the vehicle. Do not use the outer plastic shroud for
lifting. Place the Air Conditioner over the prepared
mounting hole. The pointed end (nose) of the shroud
must face towards the front of the vehicle. Pull the
electrical conduit down from the roof Air Conditioner,
through the mounting opening and let hang.
Securing the roof top unit to the roof:
A mounting frame is supplied with the ceiling
assembly. Follow the steps below to secure the Air
Conditioner to the roof. Refer to Figure 4.
A. On the Roof - Position the Air Conditioner with the
basepan gasket over the square opening in the roof.
B. In the Coach - Install the ceiling assembly mount
frame using the four bolts, washer 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
provide the
a squared installation
installed with optimum gasket compression.
V. ELECTRICAL WIRING
ROUTING 230/240 VAC Wiring – See Figure 7
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
roof frame. Power wires will be run through the strain
relief in the ceiling assembly and connected to the
power strip on the ceiling assembly.
High Voltage Wiring Specifications
1. Refer to most recent electrical standards for
Wiring Rules.
2. Refer to upper unit nameplate for Circuit
Protection Size.
3. See System Wiring Diagram on page 6.
INSTALLER MUST PROVIDE A TWO POLE
DISCONNECT FOR ACTIVE AND NEUTRAL.
REFER TO UNIT RATING PLATE FOR MAXIMUM
PROTECTIVE DEVICE AMPS.
Figure 1
3
Figure 2