INSTALLATION
europa
Installation & Servicing
25
27 ANTI CYCLING SETTING
If the dipswitch number 4 on the main P.C.B. is set to the ’ON’
position it will activate the re---ignition delay period of
approximately 3 minutes. When dipswitch number 4 is set to
the ’OFF’ position there will be approximately 30 seconds
re---ignition delay period.
ON
OFF
1 2 3 4
ON
OFF
1 2 3
4
3 minutes
30 sec.
28 COMMISSIONING AND TESTING
The benchmark Logbook or equivalent self certification
should be completed and signed to demonstrate compliance
with Building Regulations.
A. Electrical Installation
Checks to ensure electrical safety should be carried out
by a competent person.
ALWAYS carry out the preliminary electrical system checks,
i.e. earth continuity, polarity, resistance to earth and short
circuit, using a suitable test meter.
B. Gas Installation
1 The whole of the gas installation, including the meter,
should be inspected and tested for soundness and
purged in accordance with the recommendations of BS.
6891. In IE refer to I.S. 813:2002.
2 Purge air from the gas installation by loosening the gas
cock union and purge until gas odour is detected.
3 Retighten the union and test for gas soundness.
WARNING. Whilst effecting the required gas soundness test
and purging air from the gas installation, open all windows
and doors, extinguish naked lights and DO NOT SMOKE.
29 GENERAL CHECKS
Make the following checks for correct operation:
1 Hot water.
a.
Fully open all DHW taps in turn and ensure that water flows
freely from them.
b.
Close all taps except the furthest one from the boiler and
check that the boiler is firing at maximum rate.
c.
Ensure that DHW temperature of approximately 35 ° C rise
is obtained at the tap. This corresponds to a flow rate of about
10.0 (2.2) l/min (gpm)
europa 224
11.6 (2.6) l/min (gpm)
europa 228
13.1 (2.9) l/min (gpm)
europa 232
d.
Turn off the DHW tap.
2 Central heating (all models)
Operate each control separately and check that the main
burner or circulating pump, as the case may be, responds.
3 Gas rate
Check the boiler gas rate when the boiler is at full output.
The gas rate will normally be
45.8 (1.62) litres/min (ft
3
/min) for the models
europa 224
53.5 (1.89) litres/min (ft
3
/min) for the models
europa 228
62.1 (2.19) litres/min (ft
3
/min) for the model
europa 232
checked at the gas meter, with no other appliance in use.
If this check is not possible, ensure that the burner pressure
is:
11.7 (4.7) mbar (in. w.g.) for the models
europa 224
,
europa
228
,
10.5 (4.2) mbar (in. w.g.) for the model
europa 232
.
4 Water circulation system
Note. Fernox Superfloc flushing solution should be used
during the flushing procedure.
a
.
With the system HOT examine all water connections for
soundness.
b.
With the system still HOT, turn off the gas, water and
electricity supplies to the boiler and drain down, to complete
the flushing process.
c.
Refill the system, adding inhibitor (see ’Water Treatment’), if
required.
Vent as necessary to clear all air and, again, check for water
soundness. After venting, repressurise as required.
d.
Balance the system. It is suggested that, initially, all radiator
handwheel valves (or TRVs if fitted) be set fully open, that all
lockshield valves be set a half---turn open.
Make minor adjustments to each radiator to achieve the same
differential on all.
5 Flue system
Check the integrity of the flue outlet and air inlet system to the
boiler ensuring no leaks are evident from piping joints or
flue/air sampling points.
Finally, set the system controls to the users requirements.
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