Haier HSU-12HEA03(BP) [7/8] Outdoor unit
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Haier HSU-12HEA03(BP) [7/8] Outdoor unit

Haier HSU-12HEA03(BP) [7/8] Outdoor unit
Outdoor unit
5.Purging Method:
Push the air out of the indoor unit
and piping as followes:
(1) Remove the valve cap on 2-way
valve in outdoor unit.
(2) Loosen by 1/2 turn the flare nut of
gas pipe, which is conneted to
3-way valve.
(3) Loosen 2-way valve by 90
o
using
hexagon wrench, and after approx.
10 sec tighten it up. Gas comes out
through flare nut on wide pipe. If no
gas is discharged, tighten flare nut
with specified torque.
(4) Open 2-way and 3-way valves
using specified torque.
(5)
Tighten the caps on the valves
with specified torque.
Valve rod
Valve cap
7-9
20-25
Tighten torque N.m
When connecting pipe exceeds 5 meters, 20g or 60g(only for 24k) refrigerant
shall be added per exceeding meter . Charge according to the following list.
Piping length
Additional amount
5m 7m
No need
40g
Note: When extending piping, air inside piping shall be removed by using external
refrigerant gas, charge according to the following list.
10m
100g
for 9k 12k
3-
way valve
2-
way valve
6.35mm(1/4")
9.52mm(3/8")
HSU-09HEA03/(DB)
HSU-09HEA03/(BP)
7
HSU-12HEA03/(DB)
HSU-12HEA03/(BP)
6.35mm(1/4")
12.7mm(1/2")

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