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Baxi LUNA3 SYSTEM HT 1.180 MP User Manual

Baxi LUNA3 SYSTEM HT 1.180 MP
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62
925.916.2 - GBINSTRUCTIONS PERTAINING TO THE INSTALLER
The boiler has been designed in full compliance with European reference standards and in particular is equipped with the
following
Overheat thermostat
Thanks to a sensor placed on the heating ow, this thermostat interrupts the gas ow to the main burner in case the
water contained in the primary system has overheated. Under these conditions the boiler locks out and you can only
repeat the ignition procedure by pressing the reset button on the boiler after you have remedied the cause of the trip.
It is forbidden to disenable this safety device
Flue thermostat
This device, positioned on the ue inside the boiler, interrupts the ow of gas to the burner if the temperature exceeds
90 °C. After verifying the cause of the trip, press the reset button positioned on the thermostat itself, then press the
release button on the boiler.
It is forbidden to disenable this safety device
Flame ionization detector
The ame sensing electrode guarantees safety of operation in case of gas failure or incomplete interlighting of the main
burner.
Under such conditions the boiler is blocked.
You must press the reset button on the boiler to restore the normal operating conditions.
Hydraulic differential pressure sensor
This pressure sensor, tted on the hydraulic assembly, allows the main burner to light provided the pump head is as
required and protects the ue-water exchanger from possible lacks of water or blockings of the pump.
Supplementary running of the pump
The electronically-controlled supplementary running of the pump lasts 3 minutes, when the boiler is in the central heating
mode, after the burner has switched off due to a room thermostat intervention.
Frost protection device
Boilers electronic management includes a “frost protection” function in the central heating system which operates the
burner to reach a heating ow temperature of 30°C when the system heating ow temperature drops below 5 °C.
This function is enabled as long as the boiler is connected to the a.c. power and gas supplies and the pressure in the
system is as specied.
Pump-blocking prevention
In case there is no call for heat either from the central heating system or from the DHW system for 24 hours on end the
pump will automatically switch on for 10 seconds.
3-way antiblocking valve
If there is no heat demand for a period of 24 hours the 3-way valve switches completely.
This function is enabled if the electrical supply to the boiler is on.
Hydraulic safety valve (heating circuit)
This device is set to 3 bar and is used for the heating circuit.
The safety valve should be connected to a siphoned drain. Use as a means of draining the heating circuit is strictly
prohibited.
18.
Control anD operatIon DevICes

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Baxi LUNA3 SYSTEM HT 1.180 MP Specifications

General IconGeneral
BrandBaxi
ModelLUNA3 SYSTEM HT 1.180 MP
CategoryHeat Pump
LanguageEnglish

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