31 PB
INSTALLATION OF THE OUTDOOR UNIT
Pre-Installation Checkpoints
• Location is convenient to install and well ventilated.
• Avoid installing it where ammable gas could leak.
• Keep the required distance from walls and other obstacles.
• Keep the outdoor unit away from grease and debris.
• Avoid installing it by the roadside where there is a risk of
muddy water.
• Install on a xed base where it is not subject to increased
operation noise.
• Ensure there is no blockage of the air outlet.
• Avoid installing under direct sunlight, in an aisle or sideway,
or near heat sources and ventilation fans.
• Keep away from ammable materials, thick oil fog, and wet
or uneven places.
• Outdoor unit comes pre-charged with refrigerant for 25 ft of
line set.
• If the indoor unit is installed more than 16 ft in elevation
below the outdoor unit, an oil trap should be installed every
16 ft in elevation drop.
NOTE:
1. To avoid storing too much oil in the oil bend, the oil bend
should be as short as possible.
2. The horizontal piping should be sloped down along the
refrigerant ow direction, to bring the oil back to com-
pressor. The slope should be between 1/200 and 1/250.
• Indoor unit can not be installed more than 50 feet in elevation
above the outdoor unit.
• Refer to refrigerant Leak Check, Charging, and Evacuation
section of the manual.
Model
Refrigerant
Pre-Charge
Pipe Size
Standard
Length (ft)
Max.
Elevation
H (ft)
Max. Length
L (ft)
Additional
Refrigerant
(oz/ft)
LIQUID GAS
FPHSR09A3B 35.2 oz 1/4" 3/8" 25 50 66 .22
FPHSR12A3B 38.1 oz 1/4" 3/8" 25 50 66 .22
FPHSR18A3B 53 oz 1/4" 1/2" 25 50 100 .22
FPHSR24A3B 70.6 3/8" 5/8" 25 50 100 .32
Table C.3.3
WARNING
Fire Hazard
A2L refrigerant is classified as mildly
flammable. Temperatures on surfaces that may
be exposed to leakage of FLAMMABLE
REFRIGERANTS shall not exceed 1292°F
WARNING
Refigeration System
Under High Pressure
Do not puncture, heat, expose to flame or
incinerate.
Only certified refrigeration technicians should
service this equipment.
R-32 and R-454B systems operate at higher
pressures than R22 equipment.
Appropriate safe service and handling
practices must be used.
Only use gauge sets designed for use with
R32 and R-454B.
Do not use standard R22 gauge sets..
/
Site Instructions
Site for Outdoor Unit
• Where it is convenient to install and well ventilated.
• Avoid it where ammable gas could leak.
•
Keep the required distance apart from the wall.
• Keep the outdoor unit away from greasy dirt, vulcanization gas exit
.
•
Avoid installing it by the roadside where there is a risk of muddy
water.
•
A xed base where it is not subject to increased operation noise.
• Where there is not any blockage of the air outlet.
• Avoid installing under direct sunlight, in an aisle or sideway,
or near heat sources and ventilation fans. Keep away from
ammable materials, thick oil
and wet or uneven places.
Indoor unit
Outdoor unit
Outdoor unit is higher than indoor unit
• In case the pipe length is more than the refrigerant should be charged additionally, according
to below table.
Model
Required amount of
additional refrigerant (Oz)
9K-18K
0.7
24K
1.0
If the height or pipe length is out of the scope of the table, please consult the merchant.
of indoor unit refers to indoor unit manual.
-7-
Figure C.3.1
Figure C.3.2
To Next Page
Loading...
