Viessmann VITOCAL 222-S Installation And Service Instructions Manual page 59
Type awt-ac 221.a04 to a13
compact heat pumps, split version for heating and cooling operation
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Also See for VITOCAL 222-S:
- Installation and service instructions manual (164 pages) ,
- Installation and service instructions for contractors (160 pages) ,
- User manual (236 pages)
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Electrical connection
External unit: Overview of connections
Vitocal 222-S, type AWT-AC
221.A04
A
A Wiring chamber:
■ BUS connection to the internal
unit
Note
Do not interchange the BUS con-
nection wires between the internal
and external units.
■ Compressor power supply
(cont.)
221.A07
A
Installation sequence
221.A10 and A13
A
59
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