Fondital LINE Tech, Инструкция по установке, эксплуатации и обслуживанию

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When there is a demand for domestic hot water, the tap symbol (fixed) and the instantaneous water temperature
are displayed.
The burner symbol shows while the burner is in operation.
The boiler can also operate as a standard instantaneous boiler, when the storage tank disabled.
1.4.3.2. Instantaneous production of DHW
When the storage tank is disabled, the boiler operates as a standard instantaneous boiler: the cutoff valve is closed and the DHW pump is off.
In this case, DHW demand is met by the secondary heat exchanger only and the maximum quantity of hot water supplied depends on the
boiler thermal output.
The temperature can be selected on regulator 3 in the range 35-57°C (from the fully anticlockwise to the fully
clockwise position).
During temperature setting, the DHW symbol on the LCD flashes and the DHW temperature is displayed.
The DHW flow rate in litres per minute at the set temperature depends on the boiler’s thermal output and the water
supply temperature. It can be calculated from the following formula:
K
l = litres of hot water per minute = --------
ΔT
where K is
• 401 for model KB 24
• 444 for model KB 28
and ΔT = DHW temperature – cold water supply temperature
For instance, with model KB 24, if the water supplied is 8°C and you want shower water at 38°C, the value of ΔT is:
Δt = 38 °C – 8 °C = 30 °C
and the number of DHW litres per minute available at 38°C is:
401
l = ------------- = 13.4 litres per minute
30
When there is a demand for hot water, the tap symbol (fixed) and the instantaneous flow water temperature are displayed.
The burner symbol shows while the burner is in operation.
1.4.4. Anti-freeze function
The boiler comes with an anti-freeze function which is active in SUMMER, WINTER and ANTI-FREEZE modes.
The anti-freeze function protects the boiler only, not the whole heating system.
The heating system must be protected by a room thermostat, which is disabled when selector 2 is on ANTI-FREEZE or OFF.
So, if you wish to protect the heating system as well, turn selector 2 to WINTER
.
The heating system can also be protected effectively from frost by using specific anti-freeze products suitable for multi-metal systems.
Do not use vehicle anti-freeze products. Periodically check the effectiveness of the additive.
When the heating water temperature sensor reads a temperature of 5°C, the boiler switches on at minimum thermal output until the
temperature rises to 30°C or 15 minutes have elapsed.
If the boiler shuts down, the pump continues to operate.
When the DHW temperature sensor reads a temperature of 5°C, the boiler switches on at minimum thermal output until the temperature
rises to 10°C or 15 minutes have elapsed (the switching valve switches to the DHW position).
If the boiler shuts down, the pump continues to operate.
When the storage tank temperature sensor reads a temperature of 5°C, the boiler switches on at minimum thermal output until the
temperature rises to 10°C or 15 minutes have elapsed.
If the boiler shuts down, the pump continues to operate.