Luna Duo-Tec MP+

High output gas condensing systems
Luna Duo-Tec MP+

High output gas condensing systems

Single or cascade centralized heating systems installations

Commercial

Wall-Hung / on frame

The range of Luna Duo-tec MP+ consists of wall-hung commercial condensing boilers, with output between 35 and 150 kW (50/30°C).

Luna Duo-tec MP+ are heating only boilers for centralized systems with the possibility to be connected to a domestic hot water tank.

Luna Duo-tec MP+ can be mounted on a frame, allowing installation even in the middle of plant rooms. The frame is common to all models, both for single and cascade installations.

Cascade option for greater heating demand, up to 16 boilers

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Characteristics

Models: 1.35, 1.50, 1.60, 1.70, 1.90, 1.110, 1.115, 1.130, 1.150
Modulation up to 1:9 (1:5 for 1.115, 1.130 and 1.150) reduces on-off cycles for improved efficiency and energy savings
Large back-lit display
Stainless steel burner (metalic fiber for 1.110 model)
Low water content heat exchanger for a rapid response to system heating demand
Electronics that allow up to 16 boilers in cascade format
Premix air-gas unit ensures that the burner constantly has an optimal air/gas ratio, for better efficiency and lower energy consumption
Accessories for single or cascade installation, for direct wall hung mounting or upon a metal hanging frame

Technical Specification

MODELS		1.35	1.50	1.60	1.70	1.90	1.110	1.115	1.130	1.150
Heat input/output
Maximum heat input (heating)	kW	34,8	46,3	56,6	66,9	87,4	104,9	115	123,8	143
Minimum heat output	kW	5,1	5,1	6,3	7,4	9,7	11,7	24,8	24,8	28,6
Useful heat output at rated heat output and high temperature regime(2) P4	kW	33,8	45	55	65	85	102	112,8	121,5	140,3
Minimum heat output (80/60°C)	kW	5	5	6,1	7,2	9,4	11,4	24,3	24,3	28,1
Maximum heat output (50/30°C)	kW	35,6	48,6	59,4	70,2	91,8	110,2	121,4	130,6	150,9
Minimum heat output (50/30°C)	kW	5,4	5,4	6,6	7,8	10,2	12,3	26,2	26,2	30,2
Useful heat output at 30% of rated heat output and low temperature setting(1) P1	kW	11,2	14,9	18,2	21,5	28,2	33,8	37,5	40,4	46,6
Seasonal space heating energy efficiency class***		A	A	A	A	-	-	-	-	-
Useful efficiency at rated heat output and high temperature setting(2) ƞ4	%	87,7	87,7	87,6	87,6	87,7	87,6	88,4	88,4	88,4
Useful efficiency at 30% of rated heat output and low temperature setting(1) ƞ1	%	97	97,1	96,8	96,5	96,8	96,8	97,8	97,8	97,8
Space heating – Seasonal energy efficiency ƞs	%	92	92	92	92	93	93	93	93	93
Heating circuit
Maximum pressure heating circuit	bar	4	4	4	4	4	4	4	4	4
Maximum inlet temperature heating circuit	°C	90	90	90	90	90	90	90	90	90
Temperature range for heating circuit	°C	25-80	25-80	25-80	25-80	25-80	25-80	25-80	25-80	25-80
Water content	l	4	4	5	6	9	9	10	10	11
Combustion
Diameter of separate discharge pipes	mm	80/80	80/80	80/80	80/80	110/110	110/110	110/110	110/110	110/110
Diameter of coaxial discharge pipes	mm	80/125	80/125	80/125	80/125	110/160	110/160	110/160	110/160	110/160
Nitrogen oxide emissions NOx	mg/kWh	29	29	31	31	31	22	17	17	23
Flue gas mass flow rate (max)	kg/s	0,016	0,021	0,026	0,031	0,040	0,047	0,052	0,056	0,064
Flue gas mass flow rate (min)	kg/s	0,002	0,002	0,003	0,004	0,005	0,005	0,012	0,012	0,014
Maximum flue temperature	°C
Gas type		Natural gas/LPG	Natural gas/LPG	Natural gas/LPG	Natural gas/LPG	Natural gas/LPG	Natural gas/LPG	Natural gas/LPG	Natural gas/LPG	Natural gas/LPG
Electrical characteristics
Rated power supply	W	180	230	230	230	275	320	325	360	460
Auxiliary electrical power consumption - Full load elmax	W	70	80	95	95	130	165	172	187	283
Auxiliary electrical power - Partial load elmin	W	20	20	20	20	17	18	51	51	52
Auxiliary electrical power - Stand-by PSB	W	3	3	3	3	3	3	3	3	3
Power supply voltage	V	230	230	230	230	230	230	230	230	230
Power supply frequency	Hz	50	50	50	50	50	50	50	50	50
Dimensions
Sound power level, indoor LWA	dB	58	62	59	62	63	63	58	60	64
Humidity protection rating (EN 60529)	IP	X5D	X5D	X5D	X5D	X5D	X5D	X5D	X5D	X5D
Net weight	kg	40	40	40	50	83	93	93	93	96
Dimensions (height/width/depth)	mm	766x450x377	766x450x377	766x450x377	766x450x505	952x600x584	952x600x584	952x600x584	952x600x584	952x600x584

(1) Low temperature: return temperature (at boiler inlet) for condensing boilers 30°C, for low temperature boilers 37°C and for other heaters 50°C.
(2) High temperature setting means 60 °C return temperature at boiler inlet and 80 °C flow temperature at boiler outlet.
*** Products with nominal output >70 kW are not subjected to energy labelling according to ErP regulation