Fondital KR 55, Инструкция по установке и использованию

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1.4. Operating the boiler
1.4.1. Switching on the boiler
The following procedure is to be implemented only after the boiler is installed and tested by a qualified fitter.
- Open the gas stop cock.
- Turn ON the master switch external to the boiler; the LCD shows and indicates the active function (see Table 1).
- Select boiler operation mode via selector 2 (Fig. 1): OFF/SUMMER/WINTER/ANTI-FREEZE.
- Set the desired CH temperature (§ 1.4.2.).
- If the boiler is connected to a separate water heater, set the desired DHW temperature (§ 1.4.3.).
- Set the desired ambient temperature by means of the ambient thermostat in the premises (optional).
IMPORTANT
When starting up the boiler for the first time or it has not been used for a long period of time, particularly when it is propane-
fired, ignition may be difficult and the boiler may shut down a few times.
Resume boiler operation by turning selector 2 (Fig. 1) to the reset position for a few seconds then back to the desired position.
If the boiler still does not ignite after several attempts, it needs to be serviced by an Authorised Service Centre or a qualified
service engineer.
1.4.2. CH function
Set the desired CH water temperature on knob 4 (Fig. 1).
The CH water temperature range depends on the selected operating range:
- standard range: from 20°C to 78°C (from full anticlockwise to full clockwise position).
- reduced range: from 20°C to 45°C (from full anticlockwise to full clockwise position).
The temperature range must be set by the fitter or an Authorized Service Centre (§ 3.2.11. 9).
During temperature setting, the CH symbol on the LCD flashes and the CH setting is displayed.
When the CH system requests heat, the LCD shows the (stable) CH symbol and the CH water tempe-
rature.
When the CH system requests heat, the LCD shows the (stable) CH symbol and the CH water temperature.
The burner symbol only shows when the burner is in operation.
To prevent the boiler from switching on and off frequently in CH mode, it is programmed with a delay time
between subsequent ignitions, which depends on the selected operating range:
- standard range: 4 minutes;
- reduced range: 2 minutes.
Should the water temperature in the system fall below the default value (§ 3.2.11.), the delay time is zeroed and the boiler re-ignited.
1.4.3. DHW function
Domestic hot water function is only enabled if connected to a separate water heater (optional).
The DHW function always has priority over the CH function.
Enabling/disabling the water heater
Il bollitore esterno (optional) può essere abilitato o disabilitato alla produzione di acqua calda sanitaria tramite il regolatore
3.
The separate water heater (optional) can be enabled or disabled via knob 3.
If the water heater active symbol is not displayed, turn knob 3 fully anticlockwise and the symbol will appear.
Then turn it clockwise until a temperature of at least 40°C is displayed. To disable the water heater, turn knob 3 fully anticlockwise until
the symbol disappears and then clockwise until a temperature of at least 40°C is displayed.
When you turn knob 3, the DHW symbol flashes on the display.
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