2
1
1. Standard length of connection pipe
●
16,5ft
(
5m
)
,
25ft (
7.5m
)
,
26,5ft (
8m
)
.
4. The additional refrigerant oil and refrigerant charging required after prolonging
connection pipe
●
After the length of connection pipe is prolonged for
33,3ft
(
10m
)
at the basis of
standard length, you should add 5ml of refrigerant oil for each additional 5m
of connection pipe.
●
The calculation
m
ethod of additional refrigerant charging
am
ount (on the
b
asis
of liquid pipe):
●
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 di
f
ferent according to the diameter of liquid pipe. See the
following sheet.
Additional refrigerant charging amount
= prolonged length of liquid pipe ×
additional refrigerant charging amount per meter
Cooling
capacity
Cooling
capacity
5000Btu/h
(1465W)
24000Btu/h
(7032W)
7000Btu/h
(2051W)
28000Btu/h
(8204W)
9000Btu/h
(2637W)
36000Btu/h
(10548W)
12000Btu/h
(3516W)
42000Btu/h
(12306W)
18000Btu/h
(5274W)
48000Btu/h
(14064W)
Max height
difference
Max height
difference
Max length
of connec-
tion pipe
Max length
of connec-
tion pipe
50ft
(
15
)
83,3ft
(
25
)
16,5ft
(5)
33,3ft
(10)
50ft (
15
)
100ft
(30)
16,5ft
(5)
33,3ft
(10)
50ft
(
15
)
100ft
(30)
16,5ft
(5)
66,5ft
(20)
66,5ft
(20)
100ft
(30)
33,3ft
(
10
)
66,5ft
(
20
)
83,3ft
(25)
100ft
(30)
33,3ft
(
10
)
66,5ft
(
20
)
2. Min. length of connection pipe is
10ft
(
3m
).
3. Max. length of connection pipe and max. high di
fference.
Configuration of connection pipe
