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7
COMMISSIONING
7.1
Warnings
The commissioning of this boiler and
system must only be undertaken by a
Gas Safe Registered Engineer in accord-
ance with the requirements of the Gas
Safe Installation and Use Regulations
and be approved by Gas Safe.
Ensure that the Benchmark Checklist is
satisfactorily completed during the com-
missioning process. The Checklist is
located at the end of this manual. This
manual should be handed to the user
following completion of the installation
and commissioning process. Failure to
comply with these requirements may in-
validate the manufacturers guarantee.
For Ireland (IE), it is necessary to com-
plete a "Declaration of Conformity" to
indicate compliance to I.S.813.2002.
7.2
Electrical installation
Preliminary electrical system checks to en-
sure electrical safety shall be carried out by
a competent person. i.e. polarity, earth con-
tinuity, resistance to earth and short circuit.
If a fault has occurred on the appliance the
fault finding procedure should be followed
as specified in the service manual.
7.3
Gas supply installation
• Inspect the entire installation including the
gas meter, test for tightness and purge, all
as described in BS 6891;
For Ireland (IE), refer to I.S.813.2002.
• Open the gas cock 6 (Fig. 7.1) on the ap-
pliance and check the gas connector on
the appliance for leaks.
- 56 -
COMMISSIONING
Fig. 7.1
7.4
• Open the C.H. flow and return valves.
• Remove the front and side panels of the
case (section "Dismantling the external
panels" on page 73).
• Gradually open stopcock at the filling point
connection to the C.H. system until water
is heard to flow; do not open fully.
• Open each radiator air vent starting at
the lowest point of the system and close
it only when clear water, free of bubbles,
flows out.
• Purge the air from the pump by unscrew-
ing the pump plug; release the pump shaft
by turning in the direction indicated by the
arrow on the information plate.
• Replace the pump plug.
• Continue filling the system. The actual
reading should ideally be 1,3 bar and not
less than 0,3 bar.
6
Open
position
Initial filling of the system
When fitting the boiler into a
sealed system, it will be neces-
sary to fit an expansion vessel,
pressure gauge and pressure
relief valve, external to the boil-
er. These items are available
from most plumbing suppliers.
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