Fondital TAHITI CONDENSING IST 03 C 298 - 02, Инструкция по эксплуатации

Страница: 12 / 44

12
1.4.5. PUMP AND VALVE ANTI-SHUTDOWN function
If the boiler remains inactive and:
- selector
2
is not in the OFF position,
- the boiler is still connected to the mains supply,
the pump and the switching valve activate briefly every 24 hours to keep them efficient.
1.4.6. Operation with an (optional) external probe
The boiler can be connected to an (optional, can be supplied by the Producer) external temperature probe.
When the external temperature has been measured, the boiler automatically regulates the heating water temperature, increasing it when the
outside temperature drops and decreasing it when it rises, which improves comfort and saves fuel (this is referred to as sliding temperature
operation).
The heating water temperature varies according to a program in the boiler’s microprocessor.
When an external probe is installed, regulator 4 (fig. 1) looses its heating water temperature function and
becomes a fictitious room temperature regulator (fig. 3) for the temperature desired in the areas to be
heated.
During temperature setting, the fictitious room temperature symbol
flashes
and the temperature setting is displayed.
Regulator 4 in the fully anticlockwise position corresponds to a fictitious room temperature of 15°C, 9
o’clock corresponds to 18°C, 12 o’clock to 25°C, 3 o’clock to 32°C and the fully clockwise position to 35°C.
To get an optimal curve, a setting of approximately 20°C is recommended.
For details on how to connect the external probe, refer to subsection 3.2.14.
Only original external probes supplied by the manufacturer must be used.
If non-original external probes are used, correct operation of the boiler, or of the probe, cannot be guaranteed.
1.4.7. Operation with (optional) remote control
The boiler can be linked to an (optional, supplied by the Manufacturer) remote control, which can be used for setting numerous parameters:
- boiler status
- room temperature
- CH system water temperature
- DHW system water temperature
- CH system or external heater (optional) activation times
- boiler diagnostics display
- boiler reset
and others.
For instructions on how to connect the remote control, refer to par. 3.2.13. and to its own instruction booklet.
Only original remote controls supplied by the manufacturer must be used.
If non-original remote controls are used, correct operation of the boiler, or of the remote control, cannot be guaranteed.
fig. 3
15
35
32
25
18