E.C.A. GP11, Руководство по обслуживанию

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3 Bar Safety Valve
The 3 bar safety valve protects the central heating circuit and the device against a possible
increase in pressure. When the water pressure at the central heating circuit exceeds 3 bar, the
safety valve is opened to reduce the water pressure (safety valve output drainage should be
provided). The 3 bar safety valve is located in the central heating flow line on the hydroblock.
DHW – CH Temperature Sensor (NTC)
The device have 2 NTC (Negative Temperature Coefficient). On of that is immersion type at DHW
outlet, other is surface type at CH outlet. The principle of this type of sensors; The temperature is
inversely proportional to the sensor resistance, the sensor resistance decreases as the temperature
increases, or the sensor resistance increases as the temperature decreases. NTC sensors are usually
identified with nominal resistance values of 25 ° C. However, this value does not fully define the
nominal R-T curve of the NTC. (25°C 10kΩ β3435)
The temperature sensors measure the water
temperatures of the domestic hot water and
the central heating (central heating system)
and signal the electronic board. The surface
type temperature sensor is connected to the
heating pipe by a clip. Immersion type
temperature sensors are mounted on
hydroblock (flow manifold) by a clips.
Surface Type NTC Immersion Type NTC
3 Way Motorized Valve
The 3-way motorized valve directs the central
heating water from the main exchanger to the
plate heat exchanger when it needs domestic
hot water in monothermic models. When hot
water is needed, the valve returns to its original
position, allowing the central heating to
continue.