Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Turn Hot Water Tap On
Attach a temperature clamp to the flow pipe as indicated by the red arrow
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Allow the burner to ignite and establish for DHW.
Isolate the DHW supply to the appliance (it is advisable not to use the appliance isolation valve as these are prone to leaking when turned).
The temperature of the appliance should reach approximately 60°C and then the burner should shut down. When the tap LED extinguishes the preheat cycle is complete (this can be up to 1 minute after the burner extinguished).
Does the preheat now satisfy correctly?
Isolate the DHW supply to the appliance (it is advisable not to use the appliance isolation valve as these are prone to leaking when turned).
The temperature of the appliance should reach approximately 60°C and then the burner should shut down. When the tap LED extinguishes the preheat cycle is complete (this can be up to 1 minute after the burner extinguished).
Does the preheat now satisfy correctly?
