Hoval TopVent GV, Руководство по эксплуатации, Страница: 29 / 44

9.2 Commissioning of the gas burner
■ Open the main shutoff device in the gas supply line.
■ Wait until the gas pressure regulator has reduced the connection pressure to
the set value.
■ Slowly open the cut-off valve in front of the device.
■ Switch on the electric power supply.
■ Set the following on the operating terminal (see operating instructions):
– 'Recirculation' operating mode
– a room temperature set value that is higher than the current room
temperature (→ heat demand).
■ The operation sequence for heat demand begins. The burner control display
shows the current status:
Display Status Description
0 Standby Waiting for heat demand
1 Reset Software reset
3 Pre-check Zero position check pressure switch
4 Pre-purge 30 s pre-ventilation by the gas blower
5 Pre-ignition Ignition without opening the gas valve
6 Ignition 5 seconds of ignition and opening of the gas valve
7 Flame check The controller checks if a flame is present.
8 Burn The heater fires up and starts to modulate.
9 Partial load operation
Before the flame stops the burner will modulate to partial
load operation.
10 Burner off The gas valve closes. The flame stops.
11 Post-purge
Gas blower purges with fresh air. The fan continues to run
to cool down the heat exchanger.
Table 22: Burner control display
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TopVent ® TG | GV | MG
Operating instructions
Initial commissioning Initial commissioning
4 220 656-en-03