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REFRIGERANT AND WATER PIPING
Minimum area requirements
In case of total refrigerant amount ≥1.84 kg, the unit should be installed, operated and stored in a room with a floor area larger than
the minimum criteria. Use following graphic and table to determine these minimum criteria:
Refrigerant
Minimum Area
Amount (kg)
(m
) (H:2.2m)
2
1.84
28.81
1.9
30.72
2.0
34.09
2.1
37.53
2.2
41.19
2.3
45.02
2.4
49.02
2.5
53.19
2.6
57.53
2.7
62.04
2.8
66.72
2.9
71.58
?
N O T E
In case of not achieving the minimum floor area, contact with your dealer.
Refrigerant piping size
Piping connection size of outdoor unit & indoor unit
Model
Piping length
2HP
3~50m
2.5HP
3~50m
3~27m
3HP
27~40m
?
N O T E
(*): The refrigerant gas and liquid piping size for 2/2.5/3HP are different between outdoor and indoor unit, so refrigerant pipe adapters are required.
These pipe adapters are factory supplied with the outdoor unit:
Model
2 HP
2.5 HP
3.0 HP
22
PMML0575 rev.1 - 09/2021
100
Outdoor unit
Pipe Connection size
Gas pipe
Liquid pipe
Ø 12.7 (1/2")
Ø 6.35 (1/4")
Ø 15.88 (5/8") (*)
Ø 9.52 (3/8") (*)
Ø 15.88 (5/8")
Ø 9.52 (3/8")
Pipe adapter
Gas pipe
Ø15.88→Ø12.7
Ø15.88→Ø12.7
-
90
80
70
60
50
40
30
20
10
0
1.8
1.9
2.0
2.1
2.2
Total refrigerant amount in the system (kg)
Refrigerant pipe
(Between Outdoor unit and
Indoor unit)
Gas pipe
Liquid pipe
Ø 12.7
Ø 15.88
Ø 15.88
Liquid pipe
-
Ø9.52→Ø6.35
Ø9.52→Ø6.35 (x2)
2.3
2.4
2.5
2.6
2.7
Indoor Unit
Pipe Connection size
Gas pipe
Ø 6.35
Ø 15.88 (5/8") (*)
Ø 6.35
Ø 15.88 (5/8")
Ø 9.52
Ø 15.88 (5/8")
2.8
2.9
Liquid pipe
Ø 6.35 (1/4")
Ø 9.52 (3/8") (*)
Ø 9.52 (3/8") (*)
Ø 9.52 (3/8") (*)
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