Wall-Hung Gas Boilers of Prime Pro Series

Lemax Prime Pro series wall-mounted double-pressure gas boiler is intended for heating and hot water supply systems of households, cottages, and office buildings with forced coolant circulation water heating systems and forced exhaust of combustion products via coaxial or divided flues.

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Description

Description

The intuitive touch panel ensures user-friendly control.

1:3 flame modulatio.

Optional connection of remote interior comfort monitoring and control devices (Android and IOS) using the integrated ModBus protocol or relay-type contacts.

The maximum length of the coaxial flue is 4,5 meters, the maximum length of the divided flue is 20 meters.

The tempered glass panel has protective coating for the panel protection against scratches and finger prints.

Address looping control, and control of several boilers via a single device.

Neodymium magnets ensure unparalleled energy efficiency, minimal noise levels and zero vibration of the pump.

Transducer and sensor structures are protected against corrosion and scaling.

Solid heat and sound proofing ensures acoustic comfort for apartment heating.

The increased-volume combustion chamber ensures complete gas combustion, extends the heat exchanger service life, and minimizes gas consumption.

The integrated pressure transducer and relief valve ensure two-tier protection against excessive heating circuit pressure.

In most situations, the operation in systems with high hydraulic resistances eliminates the need for extra pump installation.

Gas pressure loss adaptation.

Optional connection of room thermostats for high-precision interior temperature control

The extended range of the boiler operating voltage ensures stable operation in electric grids with increased and reduced voltages (185 to 245 V).

The integrated ignition transformer ensures stable sparking and the smoothest ignition.

The LED screen water pressure indicator ensures user-friendly monitoring of water pressure.

The independent heat exchanger of the hot water supply circuit minimizes the annual maintenance costs, ensures stable temperature of the hot water supply circuit, and boasts a longer service life versus bi-thermal heat exchangers.

The hydraulic group of the boiler has a bypass for protecting the boiler elements against overheating in case of excessive hydraulic resistance in the heating system.

The flow sensor starts up the hot water supply circuit at water flows of 2 liters per minute and cuts off at water flow of 1,5 liters per minute to allow using the hot water supply circuit under low water pressure conditions.

The detachably mounted lining ensures easy maintenance of the boiler.

Parameters	Prime Pro 10 / Prime Pro 10 HO	Prime Pro 12 / Prime Pro 12 HO	Prime Pro 14 / Prime Pro 14 HO	Prime Pro 16 / Prime Pro 16 HO	Prime Pro 18 / Prime Pro 18 HO	Prime Pro 20 / Prime Pro 20 HO	Prime Pro 22 / Prime Pro 22 HO	Prime Pro 24 / Prime Pro 24 HO	Prime Pro 26 / Prime Pro 26 HO	Prime Pro 28 / Prime Pro 28 HO	Prime Pro 32 / Prime Pro 32 HO
Combustion Chamber Type	closed	closed	closed	closed	closed	closed	closed	closed	closed	closed	closed
Automatic Safety Controls	845 SIGMA	845 SIGMA	845 SIGMA	845 SIGMA	845 SIGMA	845 SIGMA	845 SIGMA	845 SIGMA	845 SIGMA	845 SIGMA	845 SIGMA
Rated Heat Capacity Supply in the Heating Mode, kW	10	12	14	16	17.8	20	22	23.4	26	28	31.5
Minimum Heat Capacity Supply in the Heating Mode, kW	6	6	6	6	6	9	9	9	11	11	11
Efficiency, %, max.	92*	92*	92*	92.5*	92.5*	92.5*	92.5*	92.5*	92.2*	92.2*	92.2*
Reference Heated Space Area, sq.m	100**	120**	140**	160**	180**	200**	220**	240**	260**	280**	320**
Expansion Tank Volume, l	6	6	6	6	6	6	6	6	6	8	8
Natural Gas Consumption, cu. m/hr (max. / mean)	1.13 / 0.6***	1.36 / 0.7***	1.59 / 0.9***	1.81 / 1***	1.95 / 1.2***	2.27 / 1.3***	2.5 / 1.35***	2.65 / 1.4***	2.95 / 1.5***	3.17 / 1.7***	3.5 / 2**
Rated Natural Gas Pressure, Pa	1300 to 2000	1300 to 2000	1300 to 2000	1300 to 2000	1300 to 2000	1300 to 2000	1300 to 2000	1300 to 2000	1300 to 2000	1300 to 2000	1300 to 2000
Rated Liquefied Gas Pressure, Pa	2900	2900	2900	2900	2900	2900	2900	2900	2900	2900	2900
Maximum Operating Coolant Pressure, MPa	0.3****	0.3****	0.3****	0.3****	0.3****	0.3****	0.3****	0.3****	0.3****	0.3****	0.3****
Minimum Operating Coolant Pressure, MPa	0.08*****	0.08*****	0.08*****	0.08*****	0.08*****	0.08*****	0.08*****	0.08*****	0.08*****	0.08*****	0.08*****
Coolant Temperature Adjustment Range, °C	35 to 85	35 to 85	35 to 85	35 to 85	35 to 85	35 to 85	35 to 85	35 to 85	35 to 85	35 to 85	35 to 85
Expansion Tank Precharge Air Pressure, MPa	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1
Maximum Hot Water Supply System Pressure, MPa	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8
Unit Hot Water Consumption at ΔT=25°C, l/min	9.6*****	9.6*****	9.6*****	9.6*****	9.6*****	13.04*****	13.04*****	13.04*****	18*****	18*****	18*****
Minimum Hot Water Supply Flow, l/min	2 (on) 1.5 (off)	2 (on) 1.5 (off)	2 (on) 1.5 (off)	2 (on) 1.5 (off)	2 (on) 1.5 (off)	2 (on) 1.5 (off)	2 (on) 1.5 (off)	2 (on) 1.5 (off)	2 (on) 1.5 (off)	2 (on) 1.5 (off)	2 (on) 1.5 (off)
Hot Water Supply Temperature Adjustment Range, °C	35 to 55	35 to 55	35 to 55	35 to 55	35 to 55	35 to 55	35 to 55	35 to 55	35 to 55	35 to 55	35 to 55
Combustion Products Temperature, °C, min.	80	80	80	80	80	80	80	80	80	80	80
Electric Power Supply Parameters, V/Hz	220/50	220/50	220/50	220/50	220/50	220/50	220/50	220/50	220/50	220/50	220/50
Maximum Electric Power Consumption, W	125	125	125	125	125	125	125	125	125	125	125
Dimensions, mm — height (H)	759.5	759.5	759.5	759.5	759.5	759.5	759.5	759.5	759.5	759.5	759.5
Dimensions, mm — width (Y)	410	410	410	410	410	410	410	410	410	410	410
Dimensions, mm — depth (Z)	249	249	249	249	249	249	249	249	320	320	320
Weight, kg, max. — net	28	28	28	28	28	28	28	28	29	32	32
Weight, kg, max. — gross	31	31	31	31	31	31	31	31	32	35	35

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