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10
"
Min.
Service Access
18
"
Min.
Figure 1
OUTDOOR UNIT
LIQUID LINE
PITCH SUCTION LINE TOWARD OUTDOOR
UNIT 1/2" FOR EVERY 10' OF LINE
INDOOR UNIT ABOVE OR
LEVEL TO OUTDOOR UNIT
INDOOR UNIT
30m
MAX.
OUTDOOR UNIT
ADDITIONAL SUCTION LINE
OIL TRAP FOR EACH 20 FOOT
RISE OF PIPE
INDOOR UNIT
LIQUID LINE
SUCTION LINE OIL
TRAP WHEN INDOOR
UNIT IS 4 FEET OR
MORE BELOW
OUTDOOR UNIT
INDOOR UNIT BELOW OUTDOOR UNIT
21
Installation procedure
Outdoor unit
The minimum clearances for the unit are illustrated in Figure 1. Condenser air enters from
three sides. Air discharges upward from the top of the unit. Refrigerant tube and electrical
connections are made from the service access area. The most common application will
find the unit best located about 10" from back wall with connection side facing the wall.
This application minimizes exposed tubing and wiring, minimizing the space for
youngsters to run around the unit with subsequent damage to the tubing or wiring.
In more confined application spaces, such as corners provide a minimum of 10" clearance
on all air inlet sides. For service access to the compressor and control box, allow 18"
minimum clearance. Ensure top is unobstructed. If units are to be located under an
overhang, there should be a minimum of 36" clearance and provision made to deflect
the warm discharge air out from the overhang.
In order to have an unrestricted air flow, owners should be advised to avoid lawn mower
discharge toward the unit depositing debris on the fin coil surface reducing the unit
efficiency.
.3.REFRIGERANT PIPING
The refrigerant piping is very important as it affects the proper operation and efficiency
of the air conditioning system. Note the following guidelines:
2.UNIT CLEARANCES
10" Min.
10"
10
Service Access
18
" Min.
B-2
INVERTED LOOP
LIQUID LINE
OUTDOOR UNIT
SUCTION LINE
INDOOR UNIT
30m
MAX.
6'
B-1
A
"