Set Appliance State:

Mains Power Off
CH Demand
Selector switch to DHW and CH position
CH temperature selector to Max
DHW temperature selector to Min
Gas On
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Measurement:

Allow system to heat to approximately 60 degrees C.
Turn CH Temp Selector to Min. (Burner should go out.)
Turn CH Temp Selector to Max.
Is there a delay of approximately 1-3 minutes before burner re-ignites?