Technical data
COMMISSIONING
6 720 648 547 (2012/06) 29
5 COMMISSIONING
5.1 PRE-COMMISSIONING CHECKS
1. Check that the service and water pipes are connected to the correct
position on the manifold.
A - CH flow (22mm)
B - CH return (22mm)
C - Gas inlet (22mm)
2. Check the gas type specified on the identification plate (F) matches
that of the gas supply. Turn on the main gas supply, check the gas
pipework, connections and rectify any leaks.
3. Check that the condensate pipe has been connected to the adapter
Fig. 41
5.2 CONDENSATE CONNECTION
Never terminate or discharge into any open source, including; sink,
bath, shower, bidet, toilet etc.
▶ Ensure that the condensate drain is 22mm diameter plastic pipe. It
must fall at least 52mm per metre towards the outlet
▶ A 22mm adaptor pipe is contained in the fitting pack.
Fig. 42 Condensate connection
5.3 FILLING THE SYSTEM
1. Ensure all system and boiler drain points are closed.
2. For sealed systems fill the system using a WRAS approved filling loop
to a pressure of 1 bar.
3. Vent all radiators and primary side of the hotwater cylinder.
4. Refill the system up to 1 bar.
GAS SUPPLY
▶ Open gas cock on the boiler and purge the gas supply to the boiler
ensuring that the room is well ventilated.
▶ Test gas supply for soundness as described in BS 6891.
5.4 STARTING THE APPLIANCE
SWITCHING THE APPLIANCE ON/OFF:
1. Turn on mains power supply.
▶ Turn on any external controls.
▶ Set the thermostatic radiator controls to maximum temperature.
▶ Set the clock/programmer to continuously ON and the room
thermostat to maximum temperature.
CAUTION: Isolate the mains gas supply before starting
any work and observe all relevant safety precautions.
NOTICE: If the boiler is not to be commissioned
immediately then: after successfully completing all of
the checks and any rectification work, close the gas and
water valves, shut off the gas supply and electrically
isolate the boiler.
Any external condensate pipe work of excessive runs
should be protected with weather resistant insulation to
help prevent freezing.
1
2
3
4
5
6
max
reset
eco
6720648547-49.1Wo
A
E
H
M
D
L
F
K
B
C
NOTICE: Never run the appliance when the appliance/
system is empty or partially filled.
6720648547-46.1Wo