Ohyama WOOZOO IHR-1201G-E, Руководство пользователя, Страница: 23 / 124

1. Standard length of connection pipe
●
5m, 7.5m, 8m
2. Min. length of connection pipe
For the unit with standard connection pipe of 5m, there is no limitation for the
min. length of connection pipe. For the unit with standard connection pipe of
7.5m and 8m, the min. length of connection pipe is 3m.
3. Max. length of connection pipe
4. The calculation method of additional refrigerant oil and refrigerant charge after
extending the connection pipe.
After the length of connection pipe is prolonged for 10m at the basis of standard
length, you should add 5ml of refrigerant oil for each additional 5m of connection
pipe.
The calculation method of additional refrigerant charging amount (on the basis
of liquid pipe):
(1) Additional refrigerant charging amount= prolonged length of liquid pipe × additional
refrigerant charging amount per meter.
(2) Basing on the length of standard pipe, add refrigerant according to the
requirement as shown in the table. The additional refrigerant charging amount
per meter is different according to the diameter of liquid pipe. See Sheet 2.
Capacity Capacity
5,000Btu/h
(1,465W)
24,000Btu/h
(7,032W)
7,000Btu/h
(2,051W)
28,000Btu/h
(8,204W)
9,000Btu/h
(2,637W)
36,000Btu/h
(10,548W)
12,000Btu/h
(3,516W)
42,000Btu/h
(12,306W)
18,000Btu/h
(5,274W)
48,000Btu/h
(14,064W)
Max. length of
connection pipe
Max. length of
connection pipe
15 25
15 30
15 30
20 30
25 30
Sheet 1 Max. length of connection pipe Unit: m
Configuration of connection pipe
19
Sheet 2. Additional refrigerant charging amount for R32
Note: The additional refrigerant charging amount in Sheet 2 is recommended
value, not compulsory.
Diameter of connection pipe mm
Liquid pipe Gas pipe
Ф6
Ф6 or Ф9.5
Ф9.5 or Ф12
Ф12
Ф16
Ф19
Ф22.2
Ф16 or Ф19
Ф19 or Ф22.2
Ф25.4 or Ф31.8
_
_
Cooling only,
cooling and heating
(g / m) (g / m)
Cooling only
(g / m)
Cooling and
heating
16
40
80
136
200 200
280 280
48
24
12
12
200
280
96
96
40
16
Indoor unit throttle Outdoor unit throttle
Configuration of connection pipe
20