Commissioning; Electrical Installation; Gas Supply Installation; Filling The D.h.w. System - Biasi RIVA COMPACT HE M96.24SM/C User Manual And Installation Instructions

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COMMISSIONING

Ensure that the Benchmark logbook is satis-
factorily completed during the commissioning
process.
7.1

Electrical installation

Preliminary electrical system checks to ensure
electrical safety shall be carried out by a compet-
ent person. i.e. polarity, earth continuity, resis-
tance to earth and short circuit.
If a fault has occurred on the appliance the fault find-
ing procedure should be followed as specified in the
service manual.
7.2

Gas supply installation

1 Inspect the entire installation including the gas
meter, test for soundness and purge, all as de-
scribed in BS 6891;
2 Open the gas cock 14 (Fig. 7.1) on the
appliance and check the gas connector on the
appliance for leaks.
Fig. 7.1
7.3

Filling the d.h.w. system

1 Close all hot water draw--- off taps.
2 Open the cold water inlet valve 13 (Fig. 7.1).
3 Slowly open each draw--- off tap and close it
only when clear water, free of bubbles, flows
out.
7.4

Initial filling of the system

1 Open the c.h. flow and return valves.
2 Remove the front panel of the case (see the
section 9.2 in this manual.
3 Unscrew the cap on the automatic air purger-
valve 19 (Fig. 7.2) one full turn and leave open
permanently.
Open position
14 13
4 Gradually open stopcock at the filling point
connection to the c.h. system until water is
heard to flow; do not open fully.
19
21
Fig. 7.2
5 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.
6 Purge the air from the pump by unscrewing the
pump plug 21 (Fig. 7.2); release the pump
shaft by turning in the direction indicated by
the arrow on the information plate.
7 Replace the pump plug.
8 Continue filling the system. The actual reading
should ideally be 1,3 bar and not less than 0,3
bar.
9 Close all air release valves on the c.h. system.
10 Inspect the boiler and the system for water
soundness and remedy any leaks discovered.
11 Cold flush the system to remove any loose par-
ticles and any system debris before starting the
boiler for the first time
The flushing procedure must be in line with
BS7593 Treatment of Water in d.h.w. c.h. Sys-
tems.
When the installation and second filling are
completed turn on the c.h. system and run it
until the temperature has reached the boiler
operating temperature. The system must then
be immediately flushed through.
This procedure must be repeated twice more.
During this operation we highly recommend
the use of a c.h. flushing detergent in the quan-
tities as specified by the appropriate manufac-
turer, whose function it is to dissolve any
foreign matter which may be in the system.
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