Biasi RIVA COMBI, Инструкция по установке и эксплуатации

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RIVA COMBI MANUAL - REV B
36
15.1 Filling the d.h.w. System:
• Close all hot water draw-off taps.
• Gradually open the d.h.w. cold water inlet
cock (40 on Sections 4 and 14) and fill
the d.h.w. storage tank.
• Slowly open each draw-off tap and close
it only when clear water, free of bubbles,
flows out.
Note: The d.h.w. cold water inlet cock (40 on sections 4 and 14) is not given with the
boiler but it is necessary for the isolation of the boiler from the system.
15.2 Initial filling of the system:
• Remove the front panel
of the case.
• Unscrew the cap on the
automatic air purger
valve 3 (Fig 15.1) one
full turn and leave open
permanently.
3
Figure 15.1
• Loosen the storage tank
air purge valve (15 in
Fig. 15.2).
15
Figure 15.2
• Open the installer
supplied automatic fill
valve between the cold
water inlet and Central
Heating System (See
37 on piping diagrams
in previous section).
• Open each radiator air
release tap starting with
the lower point and
close it only when clear
water, free of bubbles,
flows out.
• Close the storage tank
air purge valve (15 in
Fig. 15.2) when water
flows out.
2
Figure 15.3
• Purge the air from the
pump by unscrewing
the pump plug 2 (Fig.
15.3); release the pump
by turning the rotor in
the direction indicated
by the arrow
on the information plate.
• Close the pump plug.
• Continue filling the
system. The actual
reading should ideally
be 1.3 bar (19 psi) and
not less than 0.3 bar
(4.3 psi).
• Close all air release
valves on the c.h.
system.
• Inspect the boiler and
the system for water
soundness and remedy
any leaks discovered.
• Cold flush the system to
remove any loose
particles and any
system debris before
starting the boiler for
the first time.
• Reassemble the front
panel of the case.
• Return fill valve to
automatic positio
15. Commissioning