Haier HPU-18CH13 HPU-123C01 User Manual - Page 27

Purging, Method, Tighten, torque

Get Haier HPU-18CH13 HPU-123C01 PDF manuals and user guides View all Haier HPU-18CH13 HPU-123C01 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 27 highlights

Installation Manual of Room Air Conditioner 3. Piping connection of the outdoor unit Connecting the connecting pipe and inlet and outlet liqued pipe according to the piping method. 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 90o using hexagon wrench, and after approx. 6 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 Tighten torque N.m 7-9 Valve 20-25 Liquid Side 2-way valve 06.35mm (1/41 Gas Side 3-way valve 012.7mm (1/2") L @.) Note: When additional refrigerant is necessary, first purge air out of connecting pipe by external gas, then drive out the excessive rerigerant by purging method Brand new unit is charged 80g more refrigerant than spec. This is only for first instaltion to purge air in the indoor unit and connecting pipe. 26

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
Installation
Manual
of
Room
Air
Conditioner
3.
Piping
connection
of
the
outdoor
unit
Connecting
the
connecting
pipe
and
inlet
and
outlet
liqued
pipe
according
to
the
piping
method.
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.
Liquid
Side
2
-way
valve
06.35mm
(1/41
(2)
Loosen
by
1/2
turn
the
flare
nut
of
gas
pipe,
which
is
conneted
to
Gas
Side
3
-way
valve
3
-way
valve.
012.7mm
(1/2")
(3)
Loosen
2
-way
valve
by
90o
using
L
@.)
hexagon
wrench,
and
after
approx.
6
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.
Tighten
torque
N.m
Valve
7-9
Valve
20-25
Note:
When
additional
refrigerant
is
necessary,
first
purge
then
drive
out
the
excessive
rerigerant
by
purging
method
Brand
new
unit
is
charged
80g
more
refrigerant
than
spec
in
the
indoor
unit
and
connecting
pipe.
26
air
out
of
connecting
pipe
by
external
gas,
.
This
is
only
for
first
instaltion
to
purge
air