Commissioning - Baxi Duo-tec Combi HE LPG Installation & Servicing Instructions Manual

Pump
Fig. 52
Selector Switch
Display
Central Heating
Temperature Control
Fig. 54
© Baxi Heating UK Ltd 2008
Heat Exchanger
Automatic Air Vent
Fig. 51
Screw
Pump
Automatic Air
Vent
2
1
0 4
bar
Fig. 53
2
1
3
0 4
bar
Domestic Hot Water
Temperature Control

11.0 Commissioning

11.1
1. Reference should be made to BS 5449 Section 5 when
commissioning the boiler.
2. Open the mains water supply to the boiler.
IMPORTANT: The heat exchanger air vent on top of the
boiler (Fig. 51) MUST be opened before filling the primary
system.
3. Open all hot water taps to purge the DHW system.
4. Ensure that the filling loop is connected and open, then
open the heating flow and return valves on the boiler.
5. Open the screw on the automatic air vent on the pump
body (Fig. 52).
6. The system must be flushed in accordance with BS 7593
(see Section 6.2) and the flushing agent manufacturers
instructions.
7. Pressurise the system to 1.5 bar then close and disconnect
the filling loop.
3
8. Turn the gas supply on and purge according to in GB
BS 5482-1 and in IE I.S. 813 "Domestic Gas Installations".
Pressure Gauge
9. Test for gas soundness.
10. Hinge the facia panel upwards and refit the case front
panel. Tighten the securing screws.
11. Turning either of the temperature control knobs will set
the relevant temperature. When the knob is turned the
display will alter and show the selected temperature. After a
few seconds the display reverts to show the current boiler
temperature (Fig. 54).
Commissioning the Boiler
33