Viessmann Vitocal 350-A Installation And Service Instructions Manual page 216
Type awh-i, awh-o
air/water heat pump with electric drive, 400 v~
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Also See for Vitocal 350-A:
- Installation and service instructions manual (160 pages) ,
- Operating instructions manual (60 pages) ,
- User manual (236 pages)
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Connection and wiring diagrams
Safety chain, control circuit, main power...
A Power supply to heat pump control
unit
B External demand (message input -
heat pump control unit)
C Fault message - lag heat source
(message input - heat pump control
unit)
D External blocking (message input -
heat pump control unit)
E Power-OFF (remove jumper when
connecting)
216
(cont.)
F Message input, power-OFF
G Phase monitor
H Phase monitor message input
X For control circuit connection, see
page 219
Y For continuation of safety chain, see
following illustration
= Plug in cable harness
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