To Connect The Refrigerant Piping To The Outdoor Unit - Daikin R32 Split Series Installer's Reference Manual

To open/close the stop valve
To handle the stem cap
To handle the service cap

7.2.7 To connect the refrigerant piping to the outdoor unit

ARXM50-71+RXM42~71R2V1B + RXP50~71M2V1B + RXA42+50B2V1B +
RXF50+60B2V1B + RXF71A2V1B + RXJ50N2V1B + ARXF50~71A2V1B
R32 split series
4P513661-9J – 2020.05
1 Remove the stop valve cover.
2 Insert a hexagon wrench (liquid side: 4 mm, gas side: 4 mm) into the valve
stem and turn the valve stem:
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)
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
c b
a Liquid stop valve
7 Piping installation
|
Tightening torque (N∙m)
22~28
33~39
49~59
61~74
Tightening torque (N∙m)
11~14
Installer reference guide
41