Baxi Luna3 Comfort Max 250 Fi

Product detailed description

Output: 9,3 – 24 kW, combi with DHW, forced flue gas discharge (turbo) -  Baxi Luna3 Comfort Max 250 Fi

• Expansion vessel with a built-in accumulation tank (patented Baxi system)
• Larger stainless steel heat exchanger
• Removable control panel with central heating-control function, LCD display and buttons for programming and adjustment
• Once an outdoor sensor (available to order) is connected, advanced weather compensation control is available directly from the boiler's control unit
• DHW output (ΔT 25°C): up to 18 l/min
• Easy installation thanks to the connection kit included in the delivery

Hydraulic system

• Electric three-way valve
• Steel burner
• Primary copper heat exchanger with a corrosion-resistant alloy coating
• Automatic bypass
• Low-consumption circulation pump with adjustable speed and a built-in air vent
• Anti-seizing function for the pump and three-way valve, activating every 24 hours
• Heating circuit safety valve, 3 bar

Heating control

• Two heating water temperature control ranges: 30/85°C, 30/45°C
• Built-in weather compensation control (activated once an outdoor sensor, available as an optional accessory, is connected)
• Room thermostat and programming timer for 2 heating levels, included in the control panel
   

Control and safety features

• Primary heat exchanger overheat safety thermostat
• Temperature control via NTC sensors
• Hydraulic pressure switch that shuts off the gas supply in case of insufficient water
• Safety pressure switch for checking correct flue gas discharge (Fi models)
• Safety thermostat for checking correct flue gas discharge (i models)
• Anti-freeze function
• Electronic thermometer
• Pressure gauge for the heating circuit
• Patented AFR air control system for optimising efficiency (Fi models with a split flue duct

 General parameters:

		Heating + DHW
		turbo		chimney
Model		LUNA3 COMFORT MAX 250 Fi	LUNA3 COMFORT MAX 310 Fi	LUNA3 COMFORT MAX 240 i
Suitable for cascade connection
Rated heat output	(kW)	25	25	24
Reduced heat output	(kW)	9,3	9,3	9,3
Heating water temperature control range	(°C)	30/85 - 30/45	30-/85 - 30/45	30/85 - 30/45
DHW temperature control range	(°C)	35/60	35/60	35/60
Minimum DHW flow rate	(l/min)	-	2	2
DHW output at a 25°C rise	(l/min)	14,3	17,8	13,7
DHW output at a 35°C rise	(l/min)	10,2	12,7	9,8
Specific DHW flow rate	(l/min)	11,5	13,7	10,7
Coaxial flue diameter	(mm)	100/60	100/60	-
Twin-pipe flue diameter	(mm)	80/80	80/80	-
Flue diameter (chimney)	(mm)	-	-	120
Electric three-way valve		No	No	No
Electrical voltage / frequency	(V/Hz)	230/50	230/50	230/50
Rated electrical input	(W)	135	165	80
Weight	(kg)	38	40	33
Dimensions
Height	(mm)	763	763	763
Width	(mm)	450	450	450
Depth	(mm)	345	345	345