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1.
WARNING - SHOCK HAZARD
To prevent the possibility of severe personal
injury or equipment damage due to electrical
shock, always be sure the electrical power is
disconnected or off before beginning
installation.
2.
This air conditioner contains a dual compressor
refrigeration system. The two compressors can
either cycle independently or operate in tandem with
one another.
Each compressor is connected to a separate
refrigeration circuit and a separate electrical circuit.
The first compressor and refrigeration circuit to
operate when the thermostat is calling for cooling is
st
referred to as "1
compressor and refrigeration circuit to operate is
nd
referred to as "2
Both first and second stage cooling systems require
power from separate 115 volt electrical circuits. The
two separate circuits connect to a high voltage
terminal board in the air conditioners electrical box.
The high voltage terminal board is specifically
labeled for the two separate electrical connections.
The markings are for "CIRCUIT 1" and
"CIRCUIT 2".
"CIRCUIT 1" connections supply power for the 1
stage cooling unit. "CIRCUIT 2" connections
supply power for the 2
On the terminal board, the termination point for both
circuit 1 and 2 is equipped with two high-voltage
wiring lugs. Each lug is identified with either the
word "BLACK" or "WHITE".
DANGER - SHOCK HAZARD
To prevent electrical shock due to miswiring, adhere to
the following procedure:
1)
Connect each circuits black (115V to GND) power
lead to the "BLACK" high voltage lug;
2)
Connect each circuits white (-0-V to GND) power
lead to the "WHITE" high voltage lug;
3)
Connect each circuits green or bare copper
ground wire to the grounding lugs located in the
electrical box. The high voltage grounding lugs
for circuit 1 and 2 are located on either side of the
high voltage terminal board.
9. 115 VAC ELECTRICAL WIRING
Stage Cooling". The second
Stage Cooling".
nd
stage cooling unit.
3.
High Voltage Wiring Specifications
A)
B)
4.
For circuit protection, adhere to the following
guidelines:
Time Delay Fuse - Maximum 20 AMP
Circuit Breakers –
(H.A.C.R. Type) - Maximum 20 AMP
(C.S.A.) - Maximum 20 AMP
5.
High Voltage Routing Specifications
When routing the high voltage supply wiring for
both circuit 1 and 2, the following guidelines must
be followed:
A)
B)
st
C)
WHEN USING NON-METALLIC SHEATH
SUPPLY CABLES (ROMEX, ETC.), STRIP
SHEATH BACK TO EXPOSE 4-6 INCHES
OF THE SUPPLY LEADS. STRIP THE
INDIVIDUAL WIRE LEAD ENDS FOR
WIRE CONNECTION (ABOUT 3/4" BARE
WIRE). INSERT THE SUPPLY WIRES
INTO THE ELECTRICAL CONNECTOR
CLAMP. SHEATH MUST PROTRUDE
PAST CLAMP BUSHING INSIDE THE
8
U.L. approval requires the power supply to
be copper conductors only with minimum
#12 AWG.
To prevent voltage drops greater than
10% during starting loads, insure that
wiring size matches wire sizes shown on
unit nameplate.
Route all wiring per applicable local and
national electrical codes.
Each circuit high voltage wiring must be
routed through a separate opening in the
outer cabinet of the wiring box. These
openings are referred to as the "power wire
entries". See Figure 1. RV Products
provides these two openings, each opening
is a 7/8" diameter opening.
Each circuit wiring must be secured at the
"power wire entry" by a U.L. listed "Rain
Tight" or equivalent electrical conduit
fitting. The fitting must be supplied by the
installer or vehicle manufacturer.
DANGER
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