Starting The Boiler; Changing The Setpoint And/Or Enabling Ch/Dhw - Slant/Fin VGH-299-CH User's Information Manual

4 Starting the boiler.

If the boiler is not on make sure the gas valve beneath the boiler is open and the power to the boiler has been
connected and is turned on, use the on/off button to switch the boiler on. The following screen will occur:
This screen is active during power up until communication with the main Control has been established.
After communication has been established the Dair mode starts and the following screen appears:
D R
AIR UNNING
The "De-Air" sequence is a safety function that starts at every power-up and is used to remove the air from
the heat exchanger. The De-Air sequence takes around 14 minutes to complete. It can be cancelled by
pressing the Enter button for over 5 seconds.
After completion or manual ending the "De-Air" sequence one of the following Status overview screens appears:
Central Heating only
70.0 °F
OR
Central Heating
AND
Domestic Hot Water

4.1 Changing the Setpoint and/or Enabling CH/DHW.

This can be done directly via the Status overview (as shown above) or via the MENU.
When CH is active, you can adjust the Actual setpoint directly on the bottom of the Status overview. When DHW
is active, you can adjust the DHW setpoint directly on the bottom of the Status overview.
This means that when CH is active, you cannot set the DHW setpoint directly via the Status overview. When
DHW is active, you also cannot set the Actual setpoint (CH setpoint) directly via the Status overview.
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