Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
Gas On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Set CH temperature to MAX by pressing the + button on the display.
Allow boiler to ignite and the CH system to reach a reasonable
operating temperature (approx. 60 degrees C).
Turn the CH temperature selector by pressing the - button on the display.
Does the fan speed reduce as the boiler temperature meets demand?
Note:
Modulation will not take place if system is satisfied at minimum gas rate.
Allow boiler to ignite and the CH system to reach a reasonable
operating temperature (approx. 60 degrees C).
Turn the CH temperature selector by pressing the - button on the display.
Does the fan speed reduce as the boiler temperature meets demand?
Note:
Modulation will not take place if system is satisfied at minimum gas rate.
