11
5712 717 v1.0
Vitotronic 100, KW10B Installation, Start-up and Service
Electrical Connections
Front view of the control
Overview (continued)
Summer mode switch
The front mounted summer mode switch F when in the
up (summer/winter) position a will allow the thermostat
terminal to call for heat, DHW functionality and outdoor
reset when programmed. Outdoor reset operation is based
on the Warm weather shut down setting.
When the summer mode switch F is in the down
(summer/DHW) position w, the thermostat terminal to
call for heat will be disabled.
Units equipped with an outdoor temperature sensor
and programmed for either internal outdoor reset or
OpenTherm enabled thermostat will start calculating a
boiler water temperature at an outdoor temperature of
37
o
F (3
o
C) and below. The boiler pump will be turned
on and run continuously.
Override switch
The front mounted override switch H when in the up
position h, turns the boiler pump on and enables stage 1
and 2 call for heat. The boiler operates on the adjustable
high limit temperature.
When the override switch H is in the down position a,
the system is in normal operation.
Power switch
The front mounted power switch G when in the up
position I, the control system is on.
When the power switch G in the down position 0, the
control system is off.
Front panel
To Next Page
Loading...
Need help?
General
