Fujitsu WOYA060LFCA, Installation And Operating Manual, Page: 21 / 92

figure 18 - Connecting the flared connections (Pipe diameters and permissible lengths)
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
D L
mini
5 m
D L
mini
5 m
HP
HP
HP models e 5, 6 e 8 e 10 e 13,16
gas fluid gas fluid gas fluid gas fluid
Outdoor unit connections
1/2" 1/4" 5/8" 1/4" 5/8" 3/8" 5/8" 3/8"
Refrigeration
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)
5 5 5 5
Maximum
length** (L)
30 30 30 20
Maxi. level
difference (D)
20 20 20 15
Male-female adapter
(reduction)
(R1)
1/2" - 5/8"
(R2)
1/4" - 3/8"
none
(R2)
1/4" - 3/8"
none none
Hydraulic unit connections 5/8" 3/8" 5/8" 3/8" 5/8" 3/8" 5/8" 3/8"
** : taking into account the possible additional load of refrigeration fluid R410A (see "Additional charge", page 27 ).
Installation and operation manual "1764 - EN" - 21 -
Air to Water Heat Pump, split system
Comfort 5, 6 Comfort 8 Comfort 10