Appendix
64
Installation and maintenance instructions Hydraulic station 0020257319_02
VWL 57/5 IS
VWL 77/5 IS
VWL 127/5 IS
Length, refrigerant pipe, minimum
3 m
3 m
3 m
Connection technology, refriger-
ant pipe
Flare connection
Flare connection
Flare connection
Outer diameter, hot gas pipe
1/2 " (12.7 mm)
5/8 " (15.875 mm)
5/8 " (15.875 mm)
Outer diameter, liquid pipe
1/4 " (6.35 mm)
3/8 " (9.575 mm)
3/8 " (9.575 mm)
Minimum wall thickness, hot gas
pipe
0.8 mm
0.95 mm
0.95 mm
Minimum wall thickness, liquid
pipe
0.8 mm
0.8 mm
0.8 mm
Refrigerant, type
R410A
R410A
R410A
Refrigerant, Global Warming Po-
tential (GWP)
2088
2088
2088
Refrigerant, fill quantity
1.50 kg
2.39 kg
3.60 kg
Permissible operating pressure,
maximum
41.5 bar
41.5 bar
41.5 bar
Compressor, type
Rotary piston
Rotary piston
Rotary piston
Compressor, oil type
Specific polyvinyl ether
(PVE)
Specific polyvinyl ether
(PVE)
Specific polyvinyl ether
(PVE)
Compressor, control
Electronic
Electronic
Electronic
Permissible height difference
between outdoor unit and indoor
unit
≤
10 m
≤
10 m
≤
10 m