Boiler Feedback - Honeywell Hometronic HCM 200d Operation

Hometronic – An Overview
Important information on: Operating modes and functions
In order that the offset is not taken into account twice, the storey
controller ignores the offset from the setpoint adjuster (dotted
line).
Storey controller and radiator controller regulate the temperature
to 23 °C.

Boiler feedback

Boiler feedback can occur via a setpoint or as needed via the
valve position of all installed HR 80s.
Boiler feedback set HK 10 (room setpoint-based)
The boiler feedback set HK 10 can be used for feedback to the
heat generation. The boiler feedback set consists of the room
temperature sensor HCF 22 and the device switch HS 20/30 (as
a collection relay).
The Hometronic Manager sends a request signal to the collection
relay HS 20/30 at a set boiler setpoint. The selectable boiler
setpoint (18 °C is preset) is specified in the Parameters menu
item of the HCM 200d. The boiler setpoint is constantly com-
pared with the room setpoint temperatures of the installed zones.
The collection relay HS 20/30 is switched on as soon as the room
setpoint temperature of a zone exceeds the boiler setpoint. The
collection relay is deactivated again if all of the room setpoint
temperatures are below the boiler setpoint.
The room temperature sensor HCF 22 is used for the anti-freeze
function. The anti-freeze temperature can also be set via the
Parameters menu item.
See also Chapter "Installing collection relay" on Page 50.
Thermostat control with boiler feedback via HS 20/30
A device switch HS 20/30 can be used (as a collection relay) for
feedback of the heat generation with thermostat control. The
collection relay switches the boiler on as soon as a relay in a
zone under thermostat control is activated.
For information on installing and setting the thermostat controller,
read from Page 88 onwards.
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