5
As the following steps:
F:
After the air discharging, open the stop valve at the indoor unit low pressure side.
G:
Screw and close the screw cap on the stop valve.
E:
Close the needle valve after open it about 10-20 seconds ,The time is according to the size of
outdoor unit and the length of the connecting pipe.
D:
Open the needle valve by small screwdriver , and this outlet will discharge the air in connecting
pipe and outdoor unit at the same time.
C:
Open the stop valve at indoor unit's high pressure side by valve plug,
Note: don't open the one at low pressure side.
B:
Open the stop valve at outdoor unit high/low pressure side by valve plug.
A:
Unscrew the valve plug nut on the stop valve , and unscrew the needle nut on the indoor unit low
pressure side.
NOTE : The direction of the arrow is the air discharging flow direction which is same as the refrigerant flow direction.
NOTE : The air is discharged from this outlet.
1
2
Needle valve
valve plug
valve plug nut
Low pressure
side
Needle valve
valve plug
High pressure
side
Indoor unit
Outdoor unit
Needle valve
valve plug
valve plug nut
Low pressure
side
Needle valve
valve plug
High pressure
side
Big pipe
Small pipe
2
1
As the picture show
2.2
The unit refrigerant pipe connecting
A:
According to the indoor and outdoor unit fixed
location and location of holes through the wall,
choose a good direction lead to pipe. Then begin
the indoor pipe connection work.
B:
Use a wrench to remove the adapter
connector nut;
High pressure valve
Low pressure valve
Copper pipe
Copper pipe
Connecting pipe
Adapter
connector
Flare nut
C:
As shown on the right, press the trumpet on the
connector cone, then hold the connection pipe
with one hand, so that keep the connector axis
in the first line, the other hand the gradually
screw the flare nut on the connector, then
tighten with wrench.
2.3
Air discharge (by indoor unit refrigerant)
If the system is small, use refrigerant empty way to discharge the pipe and outdoor unit air, t
o discharge the
air in the connecting pipe and outdoor unit, when there's refrigerant in the pipes originally, just open the
low pressure side needle valve of indoor unit to discharge the air by refrigerant pressure.
Summary of Contents for SunPump MACHRW010W
Page 1: ...DC INVERTER AIR TO WATER HEAT PUMP INSTALLATION INSTRUCTION MANUAL Sun Sun tm Pump Pump ...
Page 2: ......
Page 30: ......
Page 31: ......
