Commissioning The Boiler - Baxi Combi Instant 80e Installation & Servicing Instructions Manual

9.0

Commissioning the Boiler

9.1 Commissioning the Boiler
Screw
1. Reference should be made to BS 5449
Section 5 when commissioning the boiler.
2. Open the mains water supply to the boiler.
Automatic
3. Open all hot water taps to purge the DHW
Air Vent
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
(Fig. 31).
6. The system must be flushed in accordance
with BS 7593 (see Section 6.2) and the flushing
agent manufacturers instructions.
Pump
Fig. 31
7. Pressurise the system to 1.0 bar then close
and disconnect the filling loop.
8. Turn the gas supply on and purge according
to in GB BS 6891 and in IE I.S. 813 "Domestic
Gas Installations".
2
9. Test for gas soundness.
bar 10. If at any time during commissioning it is
Selector Switch
required to terminate a particular cycle, e.g. the
Pressure
pump overrun period, turn the selector to the
Fig. 32
Gauge
OFF position and then back to either ( ) or
( ) (Fig. 33).
PREHEAT
OFF
30° 40° 50° 60° 70° 80°
2
ON
bar
Power On
Neon
Central Heating Hot Water
Temperature Control Temperature Control
Fig. 33
25