
Installation – Terminal Connections VS20WRF
Understanding your terminal connections
Rear of unit
Sensor Terminals
Can be used for external AIR,
Floor sensor when configured
as thermostat. Can also be
used for Cylinder thermostat
when configured for HW.
See page 57.
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VS20WRF and VS20BRF Installer Manual
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ALLA
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iT600 VS20W - Installer - User Manual 011_Layout 1 07.07.2014 10:36 Stron