2 6 3 Accessing the hydraulic module’s
refrigerant connections
- Remove the front panel (2 screws
A
).
- Remove the left-hand panel (2 screws
B
).
1
A
1
A
2
figure 14 - Removing the casing
4
3
B
3
B
2 6 4
Creating the flarings
- Cut the pipe to an appropriate length with a pipe-cutter
without deforming it.
- Carefully deburr it, holding the pipe towards the bottom
to avoid introducing filings into the pipe.
- Remove the flared connection nut situated on the
valve to be connected and slip the pipe into the nut.
- Proceed to flare, letting the pipe overflow the flaring
tool.
- After flaring, check the condition of the working
radius (
L
). This must not show any scratch or trace of
any fracturing. Also check the dimension (
B
).
2 6 5 Shaping the refrigeration pipes
The refrigeration pipes must be shaped only on a
bending machine or with a bending spring in order to
avoid any risk of crushing or breaking them.
"
Warning !
• Remove the insulation material locally to bend the
pipes.
• Do not bend the copper to any angle over 90°.
• Never bend pipes more than 3 times in the same
position otherwise traces of fracturing may appear
(from strain-hardening the metal).
Flaring tool
Hose
Flare
nut
B
L
C
ø Hose
dimensions in mm
L
B
0
/
-0,4
C
6,35 (1/4")
1,8 to 2
9,1
17
9,52 (3/8")
2,5 to 2,7
13,2
22
12,7 (1/2")
2,6 to 2,9
16,6
26
15,88 (5/8")
2,9 to 3,1
19,7
29
Installation and operating manual "1532 - EN"
- 17 -
Air to Water Heat Pump
