Carel heaterSteam User Manual download pdf (Page 56)

ENGLISH

heaterSteam +030222011 - rel. 1.6 - 13.03.2008

14. MAINTENANCE

14.1 Maintenance of the cylinder-cylinder

For correct operation, the steam production cylinder must be periodically cleaned, at intervals linked to

the quantity of salts or impurities dissolved in the supply water. This operation is necessary as the lime

deposits that form inhibit the exchange of heat between the elements and the water.

IMPORTANT WARNING: do not use detergents or solvents to clean the components in the cylinder and

all other plumbing.

The unit must be cleaned in any case when the element over-temperature alarm is activated (see ALAR-

MS AND TROUBLESHOOTING), signalled by:

the lighting up of LED 1 and 3, for the type C control module (see Fig. 15.a);•

the display of the message CL for the type H or T control module.•

The cylinder may be hot! Let it cool before handling, or use protective gloves.

To access the cylinder:

turn the appliance off (Fig. 13.1) and open the disconnecting switch on the power line (safety proce-•

dure);

completely empty the water contained in the cylinder (see SHUTTING DOWN THE UNIT); •

open and remove the casing (see Removing and replacing the front casing). •

The layout of the humidiﬁ er is as in Fig. 14.a.

Fig. 14.a Fig. 14.b

Key:

n. description

1 pressure balancing pipe

2 cylinder fastener closing

3 level control

4 thermal lining (optional) with Velcro fastener

5 ground connection

To remove and clean the cylinder, follow the procedure as described below:

remove the steam pipe from the upper pipe union of the cylinder (Fig. 14.c);1.

electronically disconnect the level sensor (Fig. 14.a, part. no. 3);2.

remove, from the cylinder cover , the pressure equalising pipe with the level control tank (Fig. 14.a, 3.

part. no. 1);

remove the protective covers of the element electrical connections (Fig. 17.a, part. no. 5) and 4.

disconnect the power cables;

remove the cylinder ground screw (Fig. 14.a, part. no. 5);5.

undo the cylinder fastener by the lifting the black plastic lever (Fig. 14.a, part. no. 2) and pushing it 6.

to the end of its stroke, thus releasing the stop system;

lift the cylinder to remove the upper pipe union from the drain unit and remove it from the machi-7.

ne, paying attention to any drops of water or deposits which may be released from the pipe union;

if present, remove the external thermal lining (Fig. 14.a, part. no. 4); 8.

place the cylinder on a working surface which is protected by a material resistant to the water and 9.

lime-scale which could be released during the cleaning operations;

release the cover ring fastening lever and push it to the end of its stroke (Fig. 17.a, part. no. 11); 10.

remove the metal ring, the plastic cover and its connected parts from the cylinder (see Fig. 17.a that

shows the cylinder exploded view);

Fig. 14.c

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