Usage Of Reducers To Connect The Piping To The Outdoor Unit - Daikin Altherma R Hybrid Installer's Reference Manual

7 | Installation
To handle the stem cap
To handle the service cap

7.6.8 Usage of reducers to connect the piping to the outdoor unit

Installer reference guide
64
2 Insert a hexagon wrench (liquid side: 4 mm, gas side: 6 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.
▪ 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
For connecting the piping to the outdoor unit, you (possibly) need reducers. Please
consult following table to see where you need which reducer.
See the outdoor unit installation manual for more information.
Port 3MXM52
3MXM68
A X
B CHYHBH05
C CHYHBH05
D —
E —
X Connection of CHYHBH05 or CHYHBH08 is NOT allowed.
— Connection of CHYHBH05 or CHYHBH08 is NOT possible.
4MXM68
X
(a)
X
(a) (a)
CHYHBH05
(a)
CHYHBH05
—
Tightening torque (N∙m)
10.8~14.7
4MXM80 5MXM90
X X
X X
CHYHBH05 X
CHYHBH08
CHYHBH05 CHYHBH05
CHYHBH08 CHYHBH08
— CHYHBH05
CHYHBH08
CHYHBH05+08AF + EHYKOMB33A
Daikin Altherma R Hybrid
4P471761-1E – 2020.10