19 PB
INSTALLATION OF THE INDOOR UNIT
Pre-Installation Checkpoints
1. Ensure there are no obstacles near the air outlet and air can be
easily blown to every corner.
2. Where piping and wall hole can be easily arranged.
3. Keep the required space from the unit to the ceiling and wall ac-
cording to the installation diagram on previous page.
4. Where the air lter can be easily removed.
5. Keep the unit and remote controller 3 ft or more apart from
television, radio etc.
6. Keep as far as possible from uorescent lamps.
7. Do not put anything near the air inlet to obstruct it from air
absorption.
8. Install on a wall that is strong enough to bear the weight of the
unit.
9. Install in a place that will not increase operation noise and
vibration.
10. Refer to Table 403 for max line set length and max elevation.
11. Refer to the Outdoor Unit Installation and operation manual
for piping requirements, refrigerant charging, and operational
checks.
Capacity
(Btu/h)
Pipe Size
Standard
Length (ft)
Max.
Elevation
H (ft)
Max. Length
L (ft)
Additional
Refrigerant
(oz/ft)
LIQUID GAS
9k 1/4" 3/8" 25 50 66 .22
12k 1/4" 3/8" 25 50 66 .22
18k 1/4" 1/2" 25 50 100 .22
24k 3/8" 5/8" 25 50 100 .32
Table 403
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 401
Figure 402
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