Daikin R32 Series - Page 37

6 | Installation
Installer reference guide
37
3(A)MXM+3(A)MXF+4MXM+5MXM
R32 Split series
4P600463-1B – 2020.05
1 2 3 4 5 6
Reducer type Connection
1 Ø15.9mm → Ø12.7mm
2 Ø12.7mm → Ø9.5mm
3 Ø15.9mm → Ø12.7mm
4 Ø12.7mm → Ø9.5mm
5 Ø15.9mm → Ø9.5mm
6 Ø15.9mm → Ø9.5mm
Connection examples:
▪ Connecting a Ø12.7mm pipe to a Ø15.9mm gas pipe connection port
a b d ec
a Outdoor unit connection port
b Reducer no. 1
c Reducer no. 3
d Flare nut for Ø15.9mm
e Inter-unit piping
▪ Connecting a Ø9.5mm pipe to a Ø15.9mm gas pipe connection port
a b d ec
a Outdoor unit connection port
b Reducer no. 6
c Reducer no. 5
d Flare nut for Ø9.5mm
e Inter-unit piping
▪ Connecting a Ø9.5mm pipe to a Ø12.7mm gas pipe connection port
a b d ec
a Outdoor unit connection port
b Reducer no. 2
c Reducer no. 4
d Flare nut for Ø12.7mm
e Inter-unit piping
Coat the threaded connection port of the outdoor unit where the flare nut comes
in with refrigeration oil.
Flare nut for (mm) Tightening torque (N•m)
Ø9.5 33~39
Ø12.7 50~60
Ø15.9 62~75