Welbilt Convotherm 4 - Page 151

9 Servicing / Cleaning
Training manual Convotherm 4 151
4.
Start up the convection heater(s) and boiler heating elements
and repeat step 3.
Exhaust-gas test procedure
Follow the steps below to perform the exhaust-gas test:
1.
Test the combustion by measuring the CO value in the flue
2.
Make sure you are making the measurement for the correct flue
for convection and boiler.
1 = Convection heater 1
2 = Boiler
3 = Convection heater 2
3.
If the CO value > 500 ppm, shut down the appliance and check
for the cause of this excessive CO value.