DeDietrich AWHP-2 MIT-IN-2 iSystem Installation And Service Manual page 36

4. Installation
11
12
22TR - 27TR
11
13
14
22TR - 27TR
14
34
11.Unscrew the nuts on the shut off valves.
12.Slip the nuts onto the pipes.
13.Bead the pipes.
Models 22 and 27 TR (Braze-on 1" fitting): Braze the connecting
pipe to the local pipe without oxygen. Braze in a nitrogen
atmosphere.
13
M002403-A
12
M002405-A
14.Apply refrigerant oil to the beaded parts to facilitate tightening and
improve watertightness.
Connect the pipes and tighten the nuts with a dynamometric
A
spanner.
A Do not use a spanner on this part of the valve, danger of the
B
refrigerant leaking.
B Recommended position of the spanners for tightening the nut.
B
M002404-A
External diameter of the
pipe (mm-inch)
6.35 - 1/4
A
9.52 - 3/8
12.7 - 1/2
B
15.88 - 5/8
19.05 - 3/4
B
M002406-A
CAUTION
Tighten the nuts using a dynamometric spanner.
External diameter of
the cone connection
(mm)
17
22
26
29
AWHP-2 MIT-IN-2 iSystem
Torque load (Nm)
14 - 18
34 - 42
49 - 61
69 - 82
100 - 120
25/06/2014 - 7616371-001-04