Atlantic 024306 - Page 28

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fi g. 32 - Refrigeration connections (authorised diameters and lengths)
HP model
3, 5 and 6 8 10
gas liquid gas liquid gas liquid
Outdoor unit connections 1/2" 1/4" 1/2" 1/4" 5/8 3/8
Refrigeration
connections
Diameter: (D1) 1/2" (D2) 1/4" (D1) 1/2" (D2) 1/4" (D1) 5/8 (D2) 3/8
Minimum length (L) 3 m 3 m 3 m
Maximum length* (L) 15 m 15 m 20 m
Maximum length** (L) 30 m 30 m 30 m
Maximum Height
Difference** (D)
20 m 20 m 20 m
Male-female adapter
(reduction)
(R1)
1/2" - 5/8"
(R2)
1/4" - 3/8"
(R1)
1/2" - 5/8"
(R2)
1/4" - 3/8"
--
Hydraulic unit connections 5/8" 3/8" 5/8" 3/8" 5/8" 3/8"
* : Without additional charge.
**: Including any additional fi lling (see
"Additional fi lling", page 30).
DL
Heat pump
Hydraulic unit
Heat Pump
Outdoor unit
"Gas" refrigeration
connection
diameter D1
"Liquid" refrigeration
connection
diameter D2
Flared
nut
Flared nut
R2 adapter
(depending on
model)
R1 adapter
(depending on
model)
Flared
nut
Flared
nut
"Liquid”
valve
“Gas”
valve
Hydraulic unit
Outdoor unit
Alfea Extensa A.I. R32 / INSTALLATION / 2114 - EN