To handle the stem cap
To handle the service cap
6.4.8 To connect the refrigerant piping to the outdoor unit
3(A)MXM+3(A)MXF+4MXM+5MXM
R32 Split series
4P600463-1B – 2020.05
Counterclockwise to open
Clockwise to close
3 When the stop valve CANNOT be turned any further, stop turning.
4 Install the stop valve cover.
Result: The valve is now open/closed.
▪
The stem cap is sealed where indicated with the arrow. Do NOT damage it.
▪
After handling the stop valve, tighten the stem cap, and check for refrigerant
leaks.
Piping Ø (mm)
Width across flats (mm)
6.4
9.5
12.7
15.9
▪
ALWAYS use a charge hose equipped with a valve depressor pin, since the service
port is a Schrader type valve.
▪
After handling the service port, tighten the service port cap, and check for
refrigerant leaks.
Item
Service port cap
▪
Piping length. Keep field piping as short as possible.
▪
Piping protection. Protect the field piping against physical damage.
1 Connect the liquid refrigerant connection from the indoor unit to the liquid
stop valve of the outdoor unit.
a
Liquid stop valve
b
Gas stop valve
c
Service port
17
19
22
27
b
c
6
Installation
|
Tightening torque (N∙m)
15~17
18~20
22~27
48~59
Tightening torque (N∙m)
11~14
a
c
Installer reference guide
39