Fujitsu Waterstage WOYA060LFCA Installation And Operating Manual page 21

Air to Water Heat Pump, split system
HP models
Outdoor unit connections
Diameter (D1) 1/2" (D2) 1/4" (D1) 5/8" (D2) 1/4" (D1) 5/8" (D2) 3/8" (D1) 5/8" (D2) 3/8"
Minimum
length (L)
Refrigeration
Maximum
connections
length** (L)
Maxi. level
difference (D)
Male-female adapter
(reduction)
Hydraulic unit connections
** : taking into account the possible additional load of refrigeration fluid R410A (see
mini mini
5 m 5 m
HP
figure 18 - Connecting the flared connections (Pipe diameters and permissible lengths)
Installation and operation manual "1764 - EN"
extensa + 5, 6 Comfort 5, 6
gas fluid
1/2" 1/4"
5
30
20
(R1) (R2)
1/2" - 5/8" 1/4" - 3/8"
5/8" 3/8"
Outdoor unit
Liquid valve
HP
L L D D
Gas valve
"Gas" refrigeration connection
Diameter D1
extensa + 8 Comfort 8 extensa + 10 Comfort 10
gas fluid gas
5/8" 1/4" 5/8"
5
30
20
(R2)
none
1/4" - 3/8"
5/8" 3/8" 5/8"
Flare nut
"Liquid" refrigeration connection
Diameter D2
Adapter R1
Depending on the
model
Flare nut
extensa + 13,16
fluid gas
3/8" 5/8"
5
30 20
20 15
none none
3/8" 5/8"
"Additional charge", page 27).
Hydraulic unit
Depending on
Flare nut
fluid
3/8"
5
3/8"
Adapter R2
the model
Flare nut
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