Table of Contents
Advertisement
①② Piping between outdoor unit Refer to 1.4.1.
③ Main Pipe (Base Unit or Manifold Pipe 1 to First Branch)
Outdoor Unit Capacity
Low Pressure Gas
(kBtu/h)
76 (8HP)
96 (10HP)
114~136 (12~14HP)
154 (16HP)
170~190 (18~20HP)
212~232 (22~24HP)
250 (26HP)
272~324 (28~34HP)
344 (36HP)
360~522 (38~54HP)
544 (56HP)
552~634 (56~66HP)
654~1088 (68~112HP)
NOTE:
When maximum length of the equivalent refrigerant pipe (L1) from the outdoor unit/manifold pipe1 to the indoor
unit is over 100m, the pipe size of low pressure gas, high/low pressure gas and liquid line from base unit/
manifold pipe1 to first branch should be increased one size with the reducer (field-supplied).
④ Pipe after first branch (3 pipes portion)
Total Indoor Unit Capacity
(kBtu/h)
Q < 54 (6HP)
54 (6HP) ≤ Q < 86 (9HP)
86 (9HP) ≤ Q < 114 (12HP)
114 (12HP) ≤ Q < 154 (16HP)
154 (16HP) ≤ Q < 170 (18HP)
170 (18HP) ≤ Q < 212 (22HP)
212 (22HP) ≤ Q < 250 (26HP)
250 (22HP) ≤ Q < 344 (36HP)
344 (36HP) ≤ Q <544 (56HP)
544 (56HP) ≤ Q < 552 (58HP)
552 (58HP) ≤ Q < 654 (68HP)
654 (68HP) ≤ Q
NOTE:
Even if the equivalent refrigerant piping length (L1) is more than 100m, no need to increase the pipe size after
first branch. If the branch pipe size is larger than the first branch, adjust the branch pipe size to the first branch.
In case that the selected pipe size after the first branch is larger than the pipe size before the first branch, use
the same pipe size as the one before the branch.
⑤ Pipe Diameter between Switch Box to Branch Pipe (3 pipes or 2 pipes portion)
Number
Type
SW BOX Model
of
Branch
HCHS-N06X
1
Single
HCHS-N10X
1
HCHM-N04X
4
HCHM-N08X
8
Multi
HCHM-N12X
12
HCHM-N16X
16
NOTE:
1.When multiple indoor units are connected to the same branch, they are controlled with the same
operation mode.
2.The liquid pipe is not required to connect to the single SW BOX.
3. In case that the number of connectable indoor units exceeds four, the high/low pressure gas pipe, low
pressure gas pipe and liquid pipe need to increase one size respectively.
High/Low Pressure Gas
Φ (mm)
Φ (mm)
19.05
15.88
22.2
19.05
25.4
22.2
28.6
22.2
28.6
22.2
28.6
25.4
31.75
25.4
31.75
28.6
38.1
28.6
38.1
31.75
41.3
38.1
44.5
41.3
50.8
44.5
Low Pressure Gas
High/Low Pressure Gas
Φ (mm)
Φ (mm)
15.88
12.7
19.05
15.88
22.2
19.05
25.4
22.2
28.6
22.2
28.6
22.2
28.6
25.4
31.75
28.6
38.1
31.75
41.3
38.1
44.5
41.3
50.8
44.5
Maximum Combination of Indoor Unit
Number of
Connectable Indoor
Unit per Branch
per SW BOX
*1
54 (6HP)
1-7
*1
96 (10HP)
1-8
*1
152 (14HP)
1-6
*1
290 (30HP)
1-6
*1
290 (30HP)
1-6
*1
290 (30HP)
1-6
Liquid
Φ (mm)
9.53
9.53
12.7
12.7
15.88
15.88
19.05
19.05
19.05
19.05
22.2
22.2
25.4
Liquid
Φ (mm)
9.53
9.53
9.53
12.7
12.7
15.88
15.88
19.05
19.05
22.2
22.2
25.4
Low
Capacity (kBtu/h)
Pressure
per Branch
Gas
48 (4HP)
15.88
54 (6HP)
19.05
76 (8HP)
19.05
96 (10HP)
22.2
54 (6HP)
54 (6HP)
54 (6HP)
54 (6HP)
24
First Branch Model
HFQ-M282F
HFQ-M452F
HFQ-M562F
HFQ-M692F
HFQ-M902F
HFQ-462XF
HFQ-682XF
Branch Pipe Model
HFQ-M142F
HFQ-M282F
HFQ-M452F
HFQ-M562F
HFQ-M692F
HFQ-M902F
HFQ-462XF
HFQ-682XF
High/Low
Pressure
Liquid
Gas
12.7
*2
9.53
*2
15.88
9.53
*2
15.88
9.53
*2
19.05
9.53
Refer to ④
Hide quick links:
Advertisement
Table of Contents
