Supplied By www.heating spares.co Tel. 0161 620 6677
TROUBLESHOOTING - TD 200
8 716 115 748 (2009/09)
70
Complaint
Cause
Remedy
Required temperature
not reached
Thermostat valve(s) in the control room set
to low
Fully open the thermostat valve(s)
or replace them with manual valve(s).
Flow temperature controller on the heating
appliance set too low
Set flow temperature controller higher.
Air lock in the heating system
Vent radiator and heating system.
Required room
temperature is greatly
exceeded
Installation location of the TD 200 not
suitable, e.g. outer wall, proximity to
window, draught, ...
Choose a better installation location for TD 200
(see Installation Instructions of the TD 200).
Excessive room
temperature
fluctuations
Temporary effect of heat from other
sources on the room, e.g. from sunshine,
room lighting, TV, fireplace etc.
Choose a better installation location for TD 200
(see Installation Instructions of the TD 200).
Temperature rise
instead of fall
Time of day incorrectly set
Check setting.
Room temperature
too high in Economy
mode
Building has high degree of heat storage
Select Economy mode earlier.
Incorrect or no
control
Bus connection defective for the devices
using the bus
Check the bus connection, if necessary, rectify
according to the connection diagram.
Only Automatic mode
can be set
Operating switch defective
Replace the TD200
Tab. 37