SystemAir SysAer SR55 - Gas Burner Two Stage

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Room Temp.
Winter
Setpoint
Comp_DiffGas_Diff
Gas_Offset
compressor
operation
Stage 2 Stage 1
1/2 1/2
Supply air
temperature
Gas Supply
Setpoint
Gas_Supply_Diff
Activatable
deactivated
Activatable
deactivated
Gas stage 1
Gas stage 2
20 SysAer
3.11.4. GAS BURNER TWO STAGE
In Winter mode, two contacts control the gas burner stages as shown in the following diagram:
Maximum Supply Air Temperature limitation
If the supplied air is too high, this function can limit activation of one or both the burner stages as the gure
below:
The supply setpoint is set to 65°C and the differential to 10°C.