37
3.6.1. Per trasformazioni da METANO a PROPANO
- Open the front panel of the boiler, (§ 3.2.7.1.).
- For model KR 55, unscrew the outlet connection to the gas valve
(
A
in Fig. 24).
For model KR 85, unscrew the connecting pipe between the gas
valve and the fan (
D
in Fig. 23).
- Replace the existing diaphragm with one for PROPANE (Tables 3
and 4).
- Make the reconnection (
A
in Fig. 24 for KR 55 and
D
in Fig. 23
for KR 85).
- Refer to § 3.6.3.
3.6.2. Switching from PROPANE to METHANE
- Open the front panel of the boiler, (§ 3.2.7.1.).
- For model KR 55, unscrew the outlet connection to the gas valve
(
A
in Fig. 24).
For model KR 85, unscrew the connecting pipe between the gas
valve and the fan (
D
in Fig. 23).
- Replace the existing diaphragm with one for METHANE (Tables 3
and 4).
- Make the reconnection (
A
in Fig. 24 for KR 55 and
D
in Fig. 23
for KR 85).
- Refer to § 3.6.3.
3.6.3. Regulating the burner
Setting maximum heat output
Setting maximum heat output
- Turn the maximum heat output regulator
(Fig. 19) to MAXI
MUM (fully clockwise). Maximum heat output setting is displayed
on the LCD as a percentage of the boiler’s maximum value.
- position selector
2
(fig. 1) to WINTER;
- check that the optional ambient thermostat (optional) is set to ON;
- activate the chimney-sweep mode (§ 3.2.7.1);
-
adjust CO2 in flue gas by turning the ratio regulator B (Fig. 24 for
KR 85 and Fig. 25 for KR 85) and make sure it is within the limits
of Table 12;
- operate the boiler on chimney-sweep mode and move to “Mini
mum heat output regulation”;
Minimum heat output regulation
- Rotate the regulator (Fig. 19) fully anticlockwise to set the maxi
mum heat output to MINIMUM.
The display shows the desired maximum heat output as a per
centage of the boiler’s maximum heat output.
- Regulate the CO2 in flue gas by turning the offset regulator C
(Fig. 24 for KR 85 and Fig. 25 for KR 85) and make sure it is
within the limits of Table 12;
- To terminate the chimney-sweep operating mode, set knob 2
(Fig. 1) to any position other than WINTER and then to the desi
red position.
Value of carbon dioxide in the flue gas
Combustibile
Valore della CO
2
Metano
8,8 ÷ 9,2
Propano
9,8 ÷ 10,2
Tabella 12 - Valori di CO
2
2
fig. 22
Gas valve
fig. 24
A
B
C
Gas valve
fig. 23
KR 55
KR 85
fig. 25
D
KR 85
KR 55
B
C
Summary of Contents for KR 55
Page 1: ...IST 03 C 000 01 INSTALLATION USE AND MAINTENANCE TAHITI CONDENSING KR 55 KR 85 GB...
Page 34: ...34 fig 21 A 3 5 Wiring diagram 55 KW...
Page 35: ...35 fig 21 B 85 KW...
Page 42: ...42...
Page 43: ...43...
