Toyotomi CTN/CTG-328W User Manual page 43

36000Btu/h (10548W)
42000Btu/h (12306W)
48000Btu/h (14064W)
4. The calculation method of additional refrigerant oil and refrigerant charging
amount after prolonging 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.
Additional refrigerant charging amount for R32
Diameter of connection pipe
mm
Liquid pipe
φ6
φ6 or φ9.5
φ12 φ19 or φ22.2
φ16 φ25.4 or φ31.8
φ19
φ22.2
NOTE:
The additional refrigerant charging amount in Sheet is recommended value,
not compulsory.
30
30
30
Indoor unit
Cooling only,
Gas pipe Cooling and
Heating (g / m)
φ9.5 or φ12
φ16 or φ19
_
_
Outdoor unit throttle
throttle
Cooling only
(g / m)
16 12
40 12
80 24
136 48
200 200
280 280
43
Cooling and
Heating (g / m)
16
40
96
96
200
280
GB