Benchmark ZWB 7-29 CC1 Installation And Servicing page 97

Set room temperature not reached (TA 211 E und DT 2)
Check
1. Thermostatic valve(s) set too low?
2. Heating characteristic set too low?
3. CH flow temperature control on
boiler set too low?
4. Is heat store temperature unreacha-
ble (CH flow temperature control set
too low)?
5. Air in the heating system.
7 181 465 346 GB (03.02)
Action
B Turn up thermostatic valve(s).
yes:
↓2.
↓2.
no:
B Correct heating characteristic.
yes:
↓3.
↓3.
no:
B Turn up CH flow temperature control.
yes:
↓4.
↓4.
no:
B Turn up CH flow temperature control.
yes:
↓5.
↓5.
no:
B Power OFF the appliance.
B Check appliance and system for water leaks and
repair as necessary.
B Top up system.
B Select Service Function 7.3 .
Select 1 (on, automatically deactivated) and con-
firm.
B Vent appliance
B Vent radiators.
B Turn ON the appliance.
Failure identification procedure
49