Viessmann AWS 104, Installation And Service Instructions For Contractors

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Recommended power cables:
Rated heating output
4 kW 7 kW 10 kW 13 kW
External unit (compressor)
230 V~
Cable cross-section
3 x 2.5 mm 2 3 x 2.5 mm 2 3 x 4.0 mm 2 3 x 6.0 mm 2
Max. cable length 25 m 25 m 25 m 30 m
Heat pump control unit
(internal unit)
230 V~
3 x 1.5 mm
2
3 x 1.5 mm
2
3 x 1.5 mm
2
3 x 1.5 mm
2
Instantaneous heating
water heater
9 kW (if instal-
led, internal unit)
Cable cross-section
■ 400 V~ (phase symmetri-
cal/asymmetrical)
5 x 2.5 mm
2
5 x 2.5 mm
2
5 x 2.5 mm
2
5 x 2.5 mm
2
■ 230 V~ (phase asymmet-
rical)
7 x 2.5 mm
2
7 x 2.5 mm
2
7 x 2.5 mm
2
7 x 2.5 mm
2
Max. cable length 25 m 25 m 25 m 25 m
Overview of possible system schemes
The following table provides an overview
of
all possible system schemes ("Sys-
tem scheme").
Preparing for installation
Requirements of on-site connections
(cont.)
5724 152 GB