QUINCY HYDRONIC TECHNOLOGY Riva FP Installation Manual download pdf (Page 42)

42 RIVA PLUS MANUAL

17. Annual Maintenance Cont.

16.4 Cleaning the primary heat exchanger:

• Take off the front panel of the case, then the sealed chamber lid and the front panel of the

combustion chamber.

If you notice dirt on the ﬁ ns of the primary heat exchanger (9 on page 10), cover the sloping

surfaces of the burner (7 on page 10) entirely in a protective layer (sheets of newspaper or

similar). Brush out the primary heat exchanger (9 on page 10) with a bristle paintbrush.

16.5 Checking the pressurization in the expansion vessel:

Empty the central heating system as described in section 17.3 of this chapter and check that

the pressure in the expansion vessel is not less than 1 bar (14.5 psi). See also section 13.2

page 30 of this manual. If the pressure should be lower, take steps to correct the pressure

level.

16.6 Cleaning the burner:

Follow the instructions for removing the ex-

ternal panels from 17.2. Remove the nine

screws labelled C in ﬁ gure 17.4. Now you

will have complete access to the combustion

chamber. The sloping and multi-gas type

burner (7 on page 10) does not need special

maintenance, but it is sufﬁ cient to dust it with

a bristle paintbrush.

Figure 16.4

16.7 Checking the combustion fan:

The combustion fan does not require any special maintenance. Lubrication is not necessary

due to the fact that the ball bearings are sealed. Check that the fan operates and that the vis-

ible impeller ﬁ ns are free of any dirt or obstructions.

16.8 Checking the ﬂ ue:

Have the integrity of the ﬂ ue outlet pipe (24 on page 10) air intake pipe (25 on page 10),

checked periodically, the venturi device (23 on page 10) cleaned and the efﬁ ciency of the ﬂ ue

safety circuit checked at least once a year. For all the above maintenance operations it is ad-

visable to call an approved Service Engineer.

• Remove the four Phillips head screws

from the vent connector on the boiler.

• Remove the vent connector from the boil-

er by pulling vertically on it.

• Remove the ﬁ rst elbow from the horizon-

tal run of the exhaust to the outside.

• Using a ﬂ ashlight inspect each length of

vent pipe for obstructions and dirt buildup.

Clean any that is found with an appropri-

ate sized brush.

• Inspect the venture device inside the out-

let of the combustion fan. Make sure that

it is free of any dirt build up or blockage.

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QUINCY HYDRONIC TECHNOLOGY Riva FP Installation Manual Page 42

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