Disassembling The Internal Components - Riello CONDEXA HPR Series Instructions For The Installer And For The Technical Assistance Centre

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Table Of Contents

Table of Contents

MAINTENANCE AND CLEANING

Cleaning the drain-trap

− Disconnect the pipes (A) and (B), take out the clip

− Loosen the lower and upper plugs, then take out

the float.

− Clean the parts of the drain-trap to remove any

solid residue.

Do not remove the float and the relative sealing

gasket, as their job is to prevent the leakage of

burnt gases in the room if there is no condensate.

Reposition the previously removed components

carefully. Check the float sealing gasket and replace

it if necessary. If the float gasket is replace, make

sure the new one is correctly positioned in its seat

(refer to the section figure).

After cleaning, fill the drain-trap with water (see

paragraph "3.1 Preliminary checks") before starting

up the boiler again.

After completing the maintenance work on the

drain-trap, we recommend running the boiler in

condensing mode for a few minutes to check there

are no leaks along the entire condensate evacua-

tion line.

If the appliance has been left unused for more than

60 days, the drain-trap in the boiler must be filled.

If the boiler is installed in a place where the am-

bient temperature may remain above 30°C for long

periods, fill the drain-trap after 30 days of non-

use. This operation must be carried out by profes-

sionally qualified personnel.

Ionisation electrode

The detector electrode play an important role in the

boiler ignition phase and maintaining an efficient com-

bustion; in this regard it is necessary to check its in-

tegrity and ensure that it is correctly positioned, strictly

respecting the reference position indicated in the figure.

If necessary replace it. The same rule applies to the ig-

nition electrode.

A = flame ignition electrode

B = detection electrode

Do not sandpaper the electrode.

During the annual maintenance, check the state of

wear of the electrodes and replace it if has badly

deteriorated.

The removal and eventual replacement of the elec-

trodes, including the ignition electrode, involves

also the replacement of the sealing gaskets.

Non-return valve

The boiler has a check valve.

To access the check valve:

ƒ remove the fan by unscrewing the 4 screws (D) fixing

it to the conveyor

ƒ make sure there are no foreign material deposits on

the membrane of the check valve and if any remove

them and checking for damage.

ƒ check the valve opens and closes correctly

ƒ re-assemble the components in reverse order, mak-

ing sure the check valve is put back in the correct di-

rection.

If maintenance has been carried out on the check valve,

make sure it is correctly repositioned to ensure the sys-

tem operates properly and safely.

4.1