Coil Circuit Vent; Adjustment And Safety Devices; Draining Off The Water From The Heater; Domestic Hot Water Expansion Tank - Baxi Luna Duo-Tec Handbuch

6. COIL CIRCUIT VENT

When filling the system for the first time it is necessary to bleed off any air in the coil and boiler circuit. To do this it is ne-
cessary to operate the boiler alternately in domestic hot water and central heating mode with the burner turned off (follow
the instructions given in the boiler manual).

7. ADJUSTMENT AND SAFETY DEVICES

The appliance has been designed in full compliance with all the reference standards and in particular, in addition to what
is described in the relevant paragraph, the boiler is equipped with:
This device is set to 8 bar and is used for the domestic hot water circuit.
Connect the safety valve to a drain trap.
Using it as a means of draining the domestic hot water circuit is strictly prohibited.

8. DRAINING OFF THE WATER FROM THE HEATER

The heater can be drained using the cock on the bottom of the heater that is accessible by removing the bottom front
panel retained by magnets:
Draining through the safety valve of the domestic hot water circuit is strictly prohibited

9. DOMESTIC HOT WATER EXPANSION TANK

(only read this section if supplied separately)
The DHW expansion vessel should be mounted if:
higher than 4 bar)
To eliminate this trouble it is necessary to install an expansion tank on the domestic hot water circuit.
A domestic hot water expansion tank is available as an accessory.
To install the accessory, proceed as follows:
Refer to the instructions supplied with the accessory too.
7113543.01 - en
SUPPLEMENTARY INSTRUCTIONS
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FOR THE INSTALLER