MCAC-UTSM-2014-01
R410A Mini Split Chiller 50Hz
53
18.3.2 Refrigerant piping
Note:
1. Refrigerant piping connection is on the right side of outdoor unit.
2. The piping connects to refrigerant piping connection.
3. Install the refrigerant piping towards left, right or back.
4. Refer to system identifiers in valve installation board for corresponding connections of indoor units.
a. Choose the sizes of refrigerant piping:
φ
9.53+
φ
19
b. Connection: refer to connection of refrigerant piping
c. Length and height drop permitted of refrigerant piping
Maximum length of piping (L)
10m
Maximum height drop
(Height drop between water pump box and outdoor unit H)
Outdoor unit (up)
5m
Outdoor unit (down)
5m
d.
Remove
dirt or water in the piping
● Make sure there is no any dirt or water in the piping before connecting it to the outdoor unit.
● Please clean the piping with high-pressure nitrogen rather than refrigerant of outdoor unit.
e.
Vacuuming
with vacuum pump
● Please vacuum with vacuum pump.
● Vacuuming should be done from the gas side.
f. O
pen all valves
g. R
efrigerant volume to be added
Calculate the volume according to the diameter and the length of the liquid side piping between
outdoor unit and water pump box. The refrigerant volume to be added is based on the following table:
Piping on liquid side
Method
Refrigerant volume to be added
<5m
Use refrigerant in outdoor unit
—
≥5m
Use vacuum pump or refrigerant box
60g/m
×
(length of piping -5m)
Expel the air
1. Flaring
Cut a pipe with a pipe cutter.
Insert a flare nut into a pipe and flare the pipe.
2. Fasten the nuts
Put the connecting tubing at the proper position, wrench the nuts with hands then fasten it with a wrench.
Содержание MGA-D10/N1
Страница 13: ...MCAC ATSM 2014 01 R410A Mini Split Chiller 50Hz 13 8 Service Space...
Страница 15: ...MCAC ATSM 2014 01 R410A Mini Split Chiller 50Hz 15 10 Wiring Diagrams 10 1 MGA D10 N1...
Страница 16: ...R410A Mini Split Chiller 50Hz MCAC ATSM 2014 01 16 10 2 MGA D12 N1 10 3 MGA D14 SN1 MGA D16 SN1...
Страница 32: ...R410A Mini Split Chiller 50Hz MCAC ATSM 2014 01 32 16 2 MGA D12 N1 Matched water pump box CE SBX N1 01A...
Страница 34: ...R410A Mini Split Chiller 50Hz MCAC ATSM 2014 01 34 16 3 MGA D14 SN1 Matched water pump box CE SBX SN1 01...
Страница 36: ...R410A Mini Split Chiller 50Hz MCAC ATSM 2014 01 36 16 4 MGA D16 SN1 Matched water pump box CE SBX SN1 01A...