Dometic ColdMachine 50 Instructions De Montage Et De Service page 23

Coldmachine
A
NOTICE! Risk of coolant leakage
Always use two open-ended spanners to prevent the couplings from
turning in the coupling holder.
➤ Apply some ester oil on the O-ring and thread of both coupling halves (fig. f,
page 8).
➤ Place the coupling halves by hand on top without tension and tighten them by
hand (fig. g, page 8).
➤ Tighten the union nuts SW21 to the end of the thread: use the width 21 open-
ended spanner for tightening and the second open-ended spanner (width 19 or
16) for counter-tightening.
The gap between the coupling halves will be 2–3 mm (fig. h, page 8).
A
NOTICE! Risk of coolant leakage
The coupling is not permanently sealed.
➤ Tighten the union nuts to a torque of 30 Nm by approx. a further 90°, to connect
both couplings firmly with each other.
The cutting ring of the male coupling half must cut itself into the female coupling
half.
If the device must be decoupled for return shipping:
!
WARNING!
The coolant in the system is under pressure.
Wear safety goggles and gloves when disconnecting.
➤ Screw the caps back onto the coupling halves to prevent dirt and moisture from
entering the refrigerant circuit.
EN
Installing the cooling unit
23