Help With Problems; Window Function; Frost Protection - Honeywell HR92UK Installation Manual

Automatic monitoring functions

Window function

If you open a window causing the temperature to drop,
the radiator controller closes the radiator valve in order
to save energy.
is displayed.
window
When the temperature rises again, but at the latest after
the set period (factory setting: 30 minutes), the radiator
controller opens the radiator valve again.
You can also open the radiator valve beforehand by
turning the adjustment dial.
The sensitivity of the radiator controller to a temperature
drop or temperature rise can be set, see Section 5,
Parameters 3 to 5.
If a window contact is connected, the window function
reacts directly to the opening and closing of the window,
see Parameter 11.
Valve protection
If the radiator valve has not been opened once
completely within the period of 2 weeks, a self-test
(forced operation) is carried out. The radiator controller
opens the radiator valve briefly on the subsequent
Monday in order to prevent seizing.
is displayed.
cycl

Frost protection

If the temperature drops below 5 °C, the radiator
controller opens the radiator valve until the temperature
rises above 6 °C again. This prevents the heating system
from freezing up.
is displayed.
frost
i
The heating must be switched on to ensure the frost
protection function.

7. Help with problems

Error table
Problem/
Cause
Display
flashing Batteries flat
No radio com-
icons munication
are flashing
no sync
Radio
connection
interrupted
Parameters at
the CM927/
DT92 operating
device not set
e1
Device defec-
sensor tive
e2 Motor cannot
valve
be moved
The radiator The radiator
stays hot valve does not
close fully
Motor does not Valve
move baseplate not
interlocked
The HR92 Valve closed
does not permanently,
accept setpoint
off
changes from displayed
the central
operating
device
10
Remedy
Replace the batteries.
Check the radio
connection between the
HR92 and the central
operating device (radio
test).
Repeat the binding
procedure.
Check the power supply
to the central operating
device and the HR92.
Check the radio
connection
CM927 operating
device: Parameter 8:
Set SU.
DT92 operating device:
Set Parameter SU
(see corresponding
instructions).
Replace the device.
Check the installation.
If appropriate, remove
the dirt.
Check the installation.
If appropriate, change
to full-stroke mode
(Parameter 6).
Set the slider to the
.
position
Use the adjustment
dial to set the room
is temperature to the
desired value. The next
switching command
from the central
operating device will
then be executed from
the HR92.