Vivax ACP-12CH35AEHI+ R32 User Manual page 223

ENG
Refrigerant Piping Connection
When connecting refrigerant piping, do not let substances or gases other than the
specified refrigerant enter the unit. The presence of other gases or substances will lower
the unit's capacity, and can cause abnormally high pressure in the refrigeration cycle. This
can cause explosion and injury.
Note on Pipe Length
The length of refrigerant piping will affect the performance and energy efficiency of the
unit. Nominal efficiency is tested on units with a pipe length of 5 meters (16.5ft)( In North
America, the standard pipe length is 7.5m (25')). A minimum pipe run of 3 metres is
required to minimise vibration & excessive noise. In special tropical area, for the R290
refrigerant models, no refrigerant can be added and the maximum length of refrigerant
pipe should not exceed 10 meters(32.8ft).
Refer to the table below for specifications on the maximum length and drop height of
piping.
Maximum Length and Drop Height of Refrigerant Piping per Unit Model
Model
R410A,R32
Inverter Split Air
Conditioner
R22 Fixed-speed
Split Air
Conditioner
R410A, R32 Fixed-
speed Split Air
Conditioner
Capacity (BTU/h)
< 15,000
≥ 15,000 and < 24,000
≥ 24,000 and < 36,000
< 18,000
≥ 18,000 and < 21,000
≥ 21,000 and < 35,000
< 18,000
≥ 18,000 and < 36,000
19
-
Max. Length (m)
25 (82ft)
30 (98.5ft)
50 (164ft)
10 (33ft)
15 (49ft)
20 (66ft)
20 (66ft)
25 (82ft)
VIVAX
Max. Drop Height
(m)
10 (33ft)
20 (66ft)
25 (82ft)
5 (16ft)
8(26ft)
10(33ft)
8(26ft)
10(33ft)