Commissioning The Boiler - Baxi Combi 130 HE Installation And Servicing Instructions

Manual Air Vent
Fig. 32
o
C
Reset
Control Panel
Fig. 33
Gas Valve
DO NOT check gas
pressure here
Inlet Gas Pressure
Test Point
26
Supplied By www.heating spares.co Tel. 0161 620 6677
Automatic Air Vent
Summer/Winter
Button
Fig. 34

10.0 Commissioning the Boiler

10.1
NOTE: The information shown on the display
is explained on the label on the inside of the
lower door panel (see Fig. 48).
1. Open the cold feed to the boiler.
2. Open all hot water taps to purge the Domestic
Hot Water Circuit.
3. Ensure that the filling loop is connected and
open, then open the heating flow and return
valves on the boiler (see Section 10.5 Filling the
System).
4. Open the manual and automatic air vents
(Fig. 32). To help purge the primary circuit turn
the pump on & off several times by using the
Summer/Winter button (Fig. 33) (ensure all
external controls are turned on and calling for
heat).
5. The system must be flushed in accordance
with BS 7593 (see Section 6.2) and the flushing
agent manufacturers instructions, further
guidance can be obtained from BS 5449 Section
5.
6. Refill the system and add inhibitor following the
inhibitor manufacturer's instructions. Vent air as
described in Step 4.
7. Complete the label supplied with the inhibitor
and attach to the inside of the boiler case. Detail
of system treatment should be added for future
reference.
8. Pressurise the system to 1.5 bar then close
and disconnect the filling loop.
9. Turn the gas supply on and purge according to
in GB BS 6891 and in IE IS 813 "Domestic Gas
Installations".
10. Turn the gas service cock anticlockwise to the
ON position and check for gas soundness up to
the gas valve.
11. Run the system and check the boiler for
correct operation.
12. After a period of 3 minutes and with all the
system controls calling for heat, check the gas
pressure at the inlet tapping of the gas valve
(Fig. 34) is 20mb ± 0.5mb and the gas rate is no
greater than 4.1m
Expansion Vessel
removed for clarity
Commissioning the Boiler
3 /h.