central
heating
progr. on / off
hot water
progr.
on / off
pump progr.
on / off
Reset key
Step key
display
Explanations of symbols and signs on the
Control Tower display.
0
1
2
No heat requirement
Ventilation phase
Ignition phase
Burner active on central heating
Burner active on hot water
Fan check
Burner off when room thermostat is demanding
Pump overrun phase for central heating
Pump overrun phase for hot water
Burner off because of too high flow water temperature
Automatic venting programme
3
4
5
6
7
8
9
A
Water pressure is too low (<1,0 bar), flashing FILL will be
altered with indication of water pressure, unit power of 50% is
possible. The installation needs to be topped up.
Water pressure is too low (<0,7 bar), FILL indication remains
continuously visible, the unit is taken out of operation. The
installation needs to be topped up.
Water pressure is too high (>3,5 bar), HIGH indication remains
continuously visible, the unit is taken out of operation. The
installation pressure needs to be decreased by draining water.
Operation indication
(in the first display position)
Mode key
~ Selecting chapters
Step key
~ Scrolling in a chapter
Reset key
~ Unlocking the unit in case of error
Mode key
STREBEL LTD.
1F, Albany park industrial estate
frimley road, camberley
surrey GU15 2PL
Telephone: (01276) 685422
Fax:
(01276) 685405