32
DOMITOP HF 24 - 30 E
FERELLA GOLD HF 24 - 30 MEL
Version - 09.2002
3.3 Control panel
A
B
C
E
ITEM DESCRIPTION
A OFF/ON/RESET switch
B Heating temperature
setting
C Water gauge
D Boiler temp. adjustment
(with optional kit)
E Arrangement for clock
D
bar
Burner on
Shutdown
Standby for heating (blinking light)
Heating required (steady light)
Low system pressure (blinking light)
Electrical power supply (steady light)
a
b
d
e
a
b
d
e
LED
°C
60
80
50
70
40
0
5
1
2
3
4
6
bar
1
2
3
4
OFF
ON
RESET
Table 1
3.4 Adjustments
Room temperature adjustment
(with room thermostat on)
Using the room thermostat or remote control, set the temperature desired in the rooms. Controlled by the
room thermostat, the boiler lights and heats the system water to the set system delivery setpoint temperature.
The generator turns off when the desired temperature in the rooms is reached.
If the room thermostat or the remote control are not installed the boiler will keep the system at the set system
delivery setpoint temperature.
System temperature adjustment
With knob B on the control panel we can set the required system temperature. To prevent localized
condensation on the fume circuit, we recommend a minimum temperature of 60°C.
Hot water temperature adjustment
With knob D on the control panel we can set the tap water temperature from 40°C to 55°C (with optional
kit).
Summer/Winter selection
Setting the adjustment potentiometer B to minimum ( ), the boiler works on Summer.
Adjusting the heating t by changing the circulator delivery-head
The temperature difference t (difference between the system delivery and return heating water temperatures)
must be under 20°C and is obtained by changing the circulator delivery-head with its variable speed device
(or switch).
Supplied by HeatingSpares247.com
