Preparation For Service; Warnings; Sequence Of Operations - Biasi RINNOVA CV Series User Manual And Installation Instructions

6

PREPARATION FOR SERVICE

6.1 Warnings

Before performing the opera-
tions described below, make
sure that the installed two-way
switch is in the off position.

6.2 Sequence of operations

Gas supply
• Open the cock for the gas meter and for
the boiler 5 in Figure 6.1.
Open
position
Figure 6.1
• Check for leaks in the gas fitting using a
soapy solution or equivalent.
• Close the gas cock 5 in Figure 6.2.
Closed
position
Figure 6.2
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PREPARATION FOR SERVICE
5
5
Filling the circuit
• Remove the front panel on the body, see
section "Removing the body panels" on
page 57.
• Open the installed water cocks.
• Open one or more hot water cocks to
bleed the pipes.
• Loosen the automatic bleed valve cap 22
in Figure 6.3.
24
Figure 6.3
• Open the radiator cocks.
• Fill the heating circuit, see section "Filling
the heating circuit" on page 13.
• Bleed the radiators and the various high
points of the installation, then close any
manual bleeding devices again.
• Remove the cap 24 in Figure 6.3 and re-
lease the pump by turning the impeller us-
ing a screwdriver.
• Bleed the pump during this operation.
• Close the pump cap.
• Finish filling the heating system.
The installation as well as the pump must
be bled multiple times.
• Assemble the front panel of the body.
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