Operating Mode (X - REMEHA Quinta 85 Technical Information

Speed mode,
see Par. 6.8
Failure mode,
see Par. 6.9
Table 03 Flow diagram control system

6.3 Operating mode (x[[)

During operation the code-display shows the status (position in cycle) of the boiler,
whilst the t-display indicates the actual flow temperature.
The digits or letters in the code-display have the following meaning:
Code Description
Standby: there is no heat demand from control system.
0
Pre-purge: before start-up, the boiler is purged for 4.2 seconds.
1
Post-purge: when the heat demand has been met, the fan continues to
operate for another 10 seconds.
Ignition: ignition is activated for 2.4 seconds while the gas valve is opened.
2
HTG mode; the boiler operates in the HTG mode.
3
DHW mode: the three way valve or DHW pump activated (Broag priority only)
4
Internal check
5
Normal control stop during HTG (flow temperature > set point + 5 °C)
6
HTG pump run on
7
DHW pump run on or for three way valve option, HTG pump run on with
8
valve open to DHW (max. 5 minutes)
Normal control stop during DHW (flow temperature > set point DHW + DHW
9
control stop set point + 5°C)
alternate half Fan speed
digit <
flashing digit
Failure code
1
Operating code during failure
2
Flow temperature during failure
3
Return temperature during failure
4
DHW temperature during failure
5
n/a
6
18
Remeha Quinta 85