6.6.2
Connect the refrigerant connections to the indoor module
Caution
Keep the refrigerant connection in place on the indoor module with
a spanner so as not to twist the internal pipe.
Important
For the AWHP 22 TR–2 and AWHP 27 TR-2 models
If the length of the piping is less than 20 m, it is possible to use
annealed pipe for the gas pipe with a diameter of 3/4" without
using braze-on adapters. The output in cooling mode may be
reduced to 20% depending on the length used.
Fig.25
A1
A2
B2
B1
MW
-1
0
0
1
2
0
9
-1
3/4"
1/2"
1"
3/8"
3/4"
1/2"
3/8"
3/4" 1/2"
1/2"
3/4"
1/2"
1/2"
1"
3/4"
3/4"
HK26
100018428
HK26
100018428
Tab.16
Association with an out
door unit
Indoor module gas line fitting
Indoor module fluid line fitting
A1: 22 kW for 1"
3/4" <=> 3/4" to 1" adapter braze-on type from
the accessories bag
Discard the original 3/4" nut
1/2" <=> 1/2" to 3/8" adapter from package
HK26 <=> 3/8" nut supplied with the adapter
Discard the original 1/2" nut
A2: 22 kW for 3/4"
3/4" <=> Original 3/4" nut
Remove and discard the cap
1/2" <=> 1/2" to 3/8" adapter from package
HK26 <=> 3/8" nut supplied with the adapter
Discard the original 1/2" nut
Fig.24
MW
-1
0
0
1
2
0
7
-1
6 Installation
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