Unit Clearances; Refrigerant Piping - Haier HC18D1VAR Service Manual

7.4.UNIT CLEARANCES

The minimum clearances for the unit are shown in Fig. 8--1. Condenser air enters from all (4) sides. Air
discharges upward from the top of the unit. Refrigerant line and electrical connections are made
from the service access area. A typical application will find the unit located about 10" from wall with
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.
When necessary for confined applications, 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
discharged free from unobstructions. If units must 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 maintain design air flow, owners should be advised to avoid lawn clippings from depositing
on the fin coil surface and reducing the system performance.

7.5 REFRIGERANT PIPING

Properly sized and installed refrigerant piping is very important for the efficient operation of the air
conditioning system.
Note the following guidelines
1. 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 use the next larger liquid line size .
15
Central Air Conditioner
Fig. 7--1
:
Figure A
Model: Cooling Only, 13SEER units
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.
Figure B