INSTALLATION
Test
NOTICE
Having accomplished air installation and leak test , test operation must be done. Before test operation,
wiring safety inspect must be carefully done.
Turn the gas shut-off valve to close, connect charging hose(low pressure)
to the service valve, then open gas shut-off valve again.
Connect refrigerant bottle to charging hose, convert it,
then fill liquid refrigerant as foregoing table.
Service port
Do not let gas refrigerant into the system.
Install the drain joint(only for heat pump type)
Install the double-channel drain joint in the hole
of outdoor unit's bottom, then connect drain hose and joint.
R40
7C
Add refrigerant
If the connecting pipe is longer than 7 meters, add refrigerant as needed. (Cool only type) add amount A=
(Lm-7m)
15g/m ; (Heat pump type)add amount A= (Lm-7m)
50g/m.
(A: add refrigerant amount , L: the
length of connecting pipe)
1
4
4
7
0
0
8
15
50
9
30
100
10
45
150
the length of connecting pipe (m)
(Cool only type)add amount (g)
(Heat pump type)add amount (g)
Close the gas shut-off valve, disconnect the manifold gauge,
and open gas shut-off valve again.
Discharge air as foregoing method.
Tighten nuts and cap of each valve.
Test operation procedure:
Only can check switch be done, and remote controller can not.
1.Connects system with power plug, and open front panel.
2.Press check switch, then system operates as test.
3.If the indicate lamps light first, go out in succession, the system
is normal, otherwise, there has lamp flashing indicating that
system has wrong. Please check system for once.
Bottom
double-channel
drain joint
Drain hose
15
120
450
The limit of tubing length is 15 and the limit of elevation difference is 7m.