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Residence Condens IS n

- Install the panel by following the instructions in paragraph "Com-

bustion check".

- The previously described function is automatically disabled if the

card generates an alarm.

- In the event of an anomaly during the combustion analysis phase

(red LED on), perform the reset procedure, as follows:
- turn the extension under the knob 1a to

(winter) and then to

(summer); then reposition it to

(off/reset) (fig. 45)

- if the reset procedure was successful (red LED off) press the CO

button to proceed with the combustion analysis again.

4.12

Gas conversion

Conversion from a family gas to other family gas can be performed
easily also when the boiler is installed.
This operation must be carried out by professionally qualified per-
sonnel.
The boiler is designed to operate with methane gas (G20) according
to the product label.
It is possible to convert the boiler to propane gas (G31) using the
special accessory kit supplied.
For disassembly, refer to the instructions provided below (fig. 46):
- disconnect the boiler from the electricity supply and turn off the

gas tap

-  remove in the following order: air distribution box cover and casing
-  disconnect and turn the instrument panel forward
-  remove the gas train (A)
-  remove the nozzle (B) contained within the gas train and replace it

with the one contained in the kit

- replace the gas train (make sure that the gas train connected to the

mixer of the fan is in position)

- reassemble the air distribution box cover, power-up the boiler and

open the gas tap.

Adjust the boiler as described in chapter "Settings" referring to the
data concerning the gas in question (G31).

Conversion must be carried out by qualified personnel.

After the gas transformation, apply the new rating plate includ-

ed in the kit.

4.13

Combustion check

- Position the mode selector (1 - fig. 47) to

(off/reset)

- Unscrew the 4 Allen screws (A) and remove the control panel (B)

(fig. 48).

- Press the combustion analysis button “CO” (C, fig. 47).
- Insert the analyser probes in the specific positions on the air distri-

bution box, after removing screw E and cap D, fig. 49.

- Check that the CO

values correspond to those indicated in the

table.

Description

Methane

gas (G20)

Liquid gas

propane (G31)

Max. CO

9.0

10.0

Min. CO

9.0

10.0

-  If the reading is different, modify as indicated in chapter "Settings".
-  Perform the combustion check.
-  Exit this function by turning the extension under the knob (1a, fig.

47) to

(winter) or

(summer), then position it back on

(off/

reset).

- To reassemble the control panel, perform the following procedure:

- position the under-knob extensions on the instrument panel and

the knobs on the control panel to the positions shown in fig. 47
(turn the temperature selectors 2/2a and 3/3a to maximum and
the mode selector 1/1a to position

off/reset);

- insert the control panel on the instrument panel and fix it with the

four screws removed earlier.

- Then:

- Remove the analyser probe and close the combustion analysis

socket with the screw (E, fig. 49)

- close the instrument panel and reassemble the connections cov-

er and casing in the reverse order in relation to the disassembly
description.

When checks are completed:
- Position the mode selector (1 - fig. 47) to

(summer) or

(win-

ter) depending on the type of operation desired.