5.1.2 Connecting refrigerant pipework
▶
Shorten pipework using pipe cutter to required length and deburr. Ensure no
splinters fall into the pipework.
Follow the guidelines for flare nut connections to EN 378-2.
▶
Use the pre-mounted flare nuts supplied with the hydraulic unit and outdoor unit.
▶
Push flare nut over the pipe end.
▶
Create a flare nut connection at each pipe end, making sure that:
▪
the flare nut ends do not have any burrs or faults,
▪
the wall length of the cup
1
is equal.
WARNING
Refrigerant may escape due to incorrect torque
Refrigerant may escape if the torque is insufficient. If the torque is to high, the pipe-
work could be damaged and this would also allow refrigerant to escape.
▶
Torques to EN 378-2 should be used:
▪
3/8" pipework 33 ... 42 Nm,
▪
5/8" pipework 90 ... 110 Nm.
▶
Connect 3/8" pipework
1
and 5/8" pipework
2
to the outdoor unit and hydraulic
unit, counter-holding using a second spanner.
Installation and operating instruction
Outdoor unit WWP L 15 ARS
5 Installation
83292002 • 1/2014-05 • La
29-55
