5
OPTIMAX HE 31 C
1.2 Control panel
eco
comfort
reset
8
9
15
13
14
12
11
10
2
1
4
3
6
7
5
fig. 1
1
= Domestic Hot Water temperature setpoint decreasing push button
2
= Domestic Hot Water temperature setpoint increasing push button
3
= Central Heating water temperature setpoint decreasing push button
4
= Central Heating water temperature setpoint increasing push button
5
= Display
LCD
6
= Reset / Summer-Winter / OTC push button
7
= Economy-Comfort / On-Off push button
8
= Domestic Hot Water symbol
9
= Domestic Hot Water mode operation
10
= Summer
symbol
11
= Multi-function
indication
12
= Economy
symbol
13
= Central Heating mode operation
14
= Central Heating symbol
15
= Burner on and actual load indication
Indication during boiler operation
Central Heating mode
The Central Heating heat demand (generated by the OpenTherm Remote Control, the Room Thermostat
or the Clock) is indicated by the flashing of the Hot Air symbol over the radiator (part. 13 and 14 – fig.
1). The display indicates the actual Central Heating water temperature (part. 11 – fig. 1).
eco
comfort
reset
fig. 2
