7.4.UNIT CLEARANCES
15
Fig.
7
--1
minimum of 36"
clearance and provision made to deflect the warm discharge air out from the overhang.
from the service access area. A typical application will find the unit located about 10" from wall with
discharges upward from the top of the unit. Refrigerant line and electrical connections are made
connection side facing this wall. This application minimizes exposed tubing and wiring and minimizes
the traffic around the unit reducing subsequent damage to the installation.
The minimum clearances for the unit are shown in
Fig. 8--1
. Condenser air enters from all (4) sides. Air
For service access to the compressor and control box, allow 18" minimum clearance. Ensure top
In order to maintain design air flow, owners should be advised to avoid lawn clippings from depositing
When necessary for confined applications, provide a minimum of 10" clearance on all air inlet sides.
discharged free from unobstructions. If units must be located under an overhang, there should be a
on the fin coil surface and reducing the system performance.
7.5 REFRIGERANT PIPING
1.
Figure A Figure B
Properly sized and installed refrigerant piping is very important for the efficient operation of the air
conditioning system.
Note the following guidelines
:
The total run, both vertical and horizontal, should be less than 50 feet or line size correction may
be necessary.
2.
If the vertical separation exceeds 10 feet u
se the next larger liquid line size .
WHEN INDOOR UNIT IS 4 FEET OR
MORE BELOW OUTDOOR UNIT, A
SUCTION LINE OIL TRAP IS REQUIRED.
PROVDE ADDITIONAL TRAPS FOR
EVERY 20 FEET OF LIFT.
Central Air Conditioner
Model: Cooling Only,
13
SEER
units
