Cooper & Hunter CH-S09FTXC, Руководство по обслуживанию

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Installation Manual Installation Manual
7.7 Configuration of connection pipe
1. Standard length of connection pipe
● 5m, 7.5m, 8m.
2. Min. length of connection pipe is 3m.
3. Max. length of connection pipe and max. high difference.
Cooling capacity
Max length
of connection pipe
Max height
difference
Cooling capacity
Max length
of connection pipe
Max height
difference
5000Btu/h(1465W) 15 5 24000Btu/h(7032W) 25 10
7000Btu/h(2051W) 15 5 28000Btu/h(8204W) 30 10
9000Btu/h(2637W) 15 5 36000Btu/h(10548W) 30 20
12000Btu/h(3516W) 20 10 42000Btu/h(12306W) 30 20
18000Btu/h(5274W) 25 10 48000Btu/h(14064W) 30 20
4. The additional refrigerant oil and refrigerant charging required 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.
● Thecalculation methodof additional refrigerant charging amount (onthe basis of liquid pipe):
Additional refrigerant charging amount = prolonged length of liquid pipe × additional refrigerant charging amount per meter
● 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 the following sheet.
Additional refrigerant charging amount for R22, R407C, R410A and R134a
Diameter of connection pipe Outdoor unit throttle
Liquid pipe(mm) Gas pipe(mm) Cooling only(g/m) Cooling and heating(g/m)
Ф6 Ф9.52 or Ф12 15 20
Ф6 or Ф9.52 Ф16 or Ф19 15 50
Ф12 Ф19 or Ф22.2 30 120
Ф16 Ф25.4 or Ф31.8 60 120
Ф19 - 250 250
Ф22.2 - 350 350
7.8 Pipe expanding method
Improper pipe expanding is the main cause of refrigerant leakage. Please expand the pipe according to the following steps:
A: Cut the pipe
Confirm the pipe length according to the distance of indoor unit and outdoor unit. Cut the required pipe with pipe cutte .
pipe
pipe cutter
uneven leaning burr
B: Remove the burrs
Remove the burrs with shaper and prevent the burrs from getting into the pipe.
pipe
shaper
downwards
C: Put on suitable insulating pipe
D: Put on the union nut
Remove the union nut on the indoor connection pipe and outdoor valve; install the union nut on the pipe.
union pipe
pipe
E: Expand the port
Expand the port with expander.
expander
hard
mold
pipe
Note:
"A" is different according to the diameter, please refer to the sheet below:
Outer diameter(mm)
A(mm)
Max Min
Ф6 - 6.35(1/4") 1.3 0.7
Ф9.52(3/8") 1.6 1.0
Ф12-12.7(1/2") 1.8 1.0
Ф15.8-16(5/8") 2.4 2.2
F: Inspection
Check the quality of expanding port.
If there is any blemish, expand the port again according to the steps above.
smooth
surface
the length is equal
improper expanding
leaning damaged
surface
crack
uneven
thickness