Air Purging - Hisense HAWV9KR Use And Installation Instructions

Installation instructions/
The air which contains moisture remaining in the refrigeration cycle may cause a malfunction on the
compressor. After connecting the indoor and outdoor units, release air and moisture from the refrigerant
cycle using a vacuum pump, as shown below.
Note: To protect the environment, be aura not
to
discharge the refrigerant
to
the air directly.
=
Vacuum pump
3-way valve diagram
(7)
Tum to
fully
open the
valve
·~ (7) Tum
to
fully
open
the
(," valve
"©
(1)Tum
......._ valve cap
~
(1)Tum
....... c?c' .:·-
'-'t
~
~8) lighten
How to Purge Air Tubes:
(1) Unscrew and remove caps from 2 and 3-way valves.
(2) Unscrew and remove cap from service valve.
(3) Connect vacuum pump flexible hose to the service valve.
Connect
to
outdoor unit
(4) Start vacuum pump for 10-15 minutes until reaching a vacuum of 10 mm Hg absolutes.
oonnect to indoor unit
open position
spindle
needle
service
port
cap
(5) With vacuum pump still running close the low pressure knob on vacuum pump manifold. Then stop
the vacuum pump.
(6) Open 2-way valve , 1/4 tum, then close it after 1 O seconds. Check tightness
of
all joints using liquid
soap or an electronic leak detector.
(7) Turn 2 and 3-way valves stem to fully open the valves. Disconnect the flexible vacuum pump hose.
(8) Replace and tighten all valve caps.
-32-