figure 15 - Connecting the flared connections (Pipe diameters and permissible lengths)
HP model
Comfort 5, 6 & 8
Comfort 10
gas
fluid
gas
fluid
Outdoor unit connections
1/2"
1/4"
5/8"
3/8"
Refrigeration
connections
Diameter
(D1) 1/2"
(D2) 1/4"
(D1) 5/8"
(D2) 3/8"
Minimum length (L)
5
5
Maximum length* (L)
20
20
Maxi level difference (D)
15
15
Male-female adapter (reduction)
(R1) 1/2" - 5/8"
(R2) 1/4" - 3/8"
none
Hydraulic unit connections
5/8"
3/8"
5/8"
3/8"
*
: without additional charge of R410A.
** : Taking into account the possible additional load of refrigerant R410A (see para.
).
D
L
mini
5 m
D
L
mini
5 m
HP
HP
Liquid valve
Hydraulic unit
Outdoor unit
Gas valve
Flare nut
Flare nut
Flare nut
Adapter R2
Depending on
the model
Flare nut
Adapter R1
Depending on the
model
"Liquid" refrigeration connection
Diameter D2
“Gas” refrigeration connection
Diameter D1
Installation and operating manual "1532 - EN"
Air to Water Heat Pump
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