Configuring Connection Pipe - Carrier 40GRQ Owner's Manual

Configuring connection pipe

1. Standard length of connection pipe
16.4 ft (5 m),24.6 ft (7.5 m),26.2 ft (8 m)
2.Min. length of connection pipe is 9.8 ft (3 m).
3.Max. length of connection pipe and max. high difference.
Max length
Cooling
of connec-
capacity
tion pipe
5000Btu/h
49.2 ft (15 m)
(1465W)
7000Btu/h
49.2 ft (15 m)
(2051W)
9000Btu/h
49.2 ft (15 m)
(2637W)
12000Btu/h
65.6 ft (20 m)
(3516W)
18000Btu/h
82 ft (25 m)
(5274W)
4. The additional refrigerant oil and refrigerant charging required after prolonging
connection pipe
standard length, you should add 1/3 in³ (5 ml) of refrigerant oil for each additional
16.4 ft (5 m) of connection pipe.
of liquid pipe):
Additional refrigerant charging amount = prolonged length of liquid pipe ×
additional refrigerant charging amount per meter
the prolonged length of liquid pipe. The additional refrigerant charging amount
per meter is different according to the diameter of liquid pipe. See the
following sheet.
Max height Cooling
difference capacity
24000Btu/h
16.4 ft (5 m)
(7032W)
28000Btu/h
16.4 ft (5 m)
(8204W)
36000Btu/h
16.4 ft (5 m)
(10548W)
42000Btu/h
32.8 ft (10 m)
(12306W)
48000Btu/h
32.8 ft (10 m)
(14064W)
-36-
Max length
of connec-
tion pipe
82 ft (25 m)
98.4 ft (30 m)
98.4 ft (30 m) 65.6 ft (20 m)
98.4 ft (30 m)
98.4 ft (30 m)
32.8 ft (10m)
16.4 ft (5 m)
Max height
difference
32.8 ft (10 m)
32.8 ft (10 m)
65.6 ft (20 m)
65.6 ft (20 m)