Geco GH10HA, User Manual

Page: 10 / 20

GH10HA USER MANUAL PAGE 10
Issue I APRIL 2013
6.2.4. Maintain Operation Mode
The Controller gets into that mode when the boiler temperature reaches the value set by the user in
the
U0
setting.
This mode of operation is indicated by lighting the
lower
indicator on ( ).
In the MAINTAIN mode the fan works with efficiency set in parameter F32 (when F32 < U1 ), or with efficiency set
in parameter
U1
(when
F32
≥
U1
). If
F32
= 0, the fan makes blows at maximum efficiency, according to settings of
parameters F26 and F 27 .
The CH pump operates identically as in the AUTO mode.
WHEN S11≠0 (CHIMNEY SENSOR OPERATION ON),
FAN SPEED IS REDUCED IN EACH OF AUTOMATIC OPERATION MODES IF
FLUE GAS TEMPERATURE EXCEEDS
THE VALUE SET IN PARAMETER F42.
6.3. Manual Operation Mode
Pressing causes the Controller to switch from automatic to manual mode, and immediately
deactivates the fan, and the pump.
In this mode, you can manually and independently activate and deactivate the HUW pump and the CH
pump.
To do this, follow the scheme below:
HUW PUMP CAN BE TURNED ON ONLY IF IT IS SELECTED IN
SERVICE PARAMETERS
STEP 1 STEP 2
→
and and
Controller
indicates water
temperature
measured on the
boiler.
HUW pump
Lower key indicator lights up.
Press the key again to deactivate
the pump and the indicator.
CH pump
Upper key indicator lights up.
Press the key again to deactivate
the pump and the indicator.