Wall-Hang Combi Gas Boilers of the Prime-V Series

Wall-hang gas double-pressure boilers the Prime series are presented by Prime-V10, Prime-V12, Prime-V14, Prime-V16, Prime-V18, Prime-V20, Prime-V24, Prime-V26, Prime-V28 and Prime-V32 models. Boilers were designed by Lemax engineering center under SIT GROUP centre for innovation and research for operating under Russian conditions.

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Description

Description

The model range is from 10 to 32 kW.

Intuitive operation.

The maximum length of a coaxial chimney is up to 4,5 m, and a separate chimney is up to 20 m.

High unification of components and components for all models of Lemax wall boilers of the Prime series.

Solid heat and sound insulation to ensure acoustic comfort in the conditions of apartment-by-apartment heating.

The ability to connect the Lemax monitoring and control device together with the Lemax OpenTherm module for monitoring and managing comfort in the home (Android and IOS).

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

Double level of safety against excess pressure in the heating circuit, which is provided by a built-in pressure sensor and a relief valve.

Working in systems with high hydraulic resistance allows in most cases exclude the installation of an additional pump.

Structurally protected sensors and sensors from corrosion and scale.

Adapted to gas pressure drops.

The ability to connect a room thermostat to adjust the temperature inside the room with high accuracy.

The extended operating voltage range of the boiler allows for stable operation of the boiler in networks with high and low voltage (185 - 245 v).

Integrated ignition transformer, which ensures stable spark formation and maximum smoothness of ignition.

An independent heat exchanger of the hot water circuit minimizes the cost of annual maintenance, ensures temperature stability in the hot water circuit and has a longer service life compared to a bitermic heat exchanger.

Reed flow sensor: the sealed contact detects the presence of a water flow, does not require regular maintenance and ensures that the hot water supply circuit is switched on at a water flow of 2 l/min, off at 1,5 l/min, which allows the use of a hot water circuit in rooms with low water pressure.

A bypass is installed in the boiler hydrogroup, which protects the boiler elements from overheating when excessive hydraulic resistance appears in the heating system.

Ease of maintenance of the boiler due to the use of easily removable cladding.

Parameter	V10	V 12	V 14	V 16	V 18	V 20	V 24	V 26	V28	V32
Rated heat output in heating mode, kWh	10	12	14	16	18	20	24	26	28	32
Minimum heat output in heating mode, kWh	6	6	6	6	6	9	9	11	11	11
Energy conversion efficiency at 100% of power, to, %	92	92	92	92,5	92,5	92,5	92,5	92,2	92,2	92,2
Energy conversion efficiency at 30% of power, to, %	91	91	91	91	91	91,2	91,2	90,1	90,1	90,1
Average gas flow, m3/hr	0,6	0,7	0,9	1	1,2	1,3	1,4	1,5	1,7	2
Nominal pressure of gas (Natural), Pa	1300	1300	1300	1300	1300	1300	1300	1300	1300	1300
Nominal pressure of gas (Liquefied), Pa	2900	2900	2900	2900	2900	2900	2900	2900	2900	2900
Maximum operating pressure of heat carrier, MPa	0,3	0,3	0,3	0,3	0,3	0,3	0,3	0,3	0,3	0,3
Minimuml operating pressure of heat carrier, MPa	0,1	0,1	0,1	0,1	0,1	0,1	0,1	0,1	0,1	0,1
Volume of fixed extension tank , L	6	6	6	6	6	6	6	8	8	8
Preliminary pressure of air in extension tank, MPa	0,1	0,1	0,1	0,1	0,1	0,1	0,1	0,1	0,1	0,1
Maximum pressure in hot water supply system, MPa	0,8	0,8	0,8	0,8	0,8	0,8	0,8	0,8	0,8	0,8
Maximum water discharge in hot water supply system at ΔТ=25 °С, l/min	9,7	9,7	9,7	9,7	9,7	13,1	13,1	18,1	18,1	18,1
Minimum flow in hot water supply system, l/min	1,5	1,5	1,5	1,5	1,5	1,5	1,5	1,5	1,5	1,5
Average temperature of combustion gases, °С	115	115	115	115	115	115	115	115	115	115
Parameters of feeding electric circuit, V/Hz	220/50	220/50	220/50	220/50	220/50	220/50	220/50	220/50	220/50	220/50
Maximum power consumption, W	125	125	125	125	125	125	125	135	135	135
Dimensions, mm:
Height	770	770	770	770	770	770	770	770	770	770
Width	430	430	430	430	430	430	430	430	430	430
Depth	268	268	268	268	268	268	268	340	340	340
Net/gross weight , kg	28/31	28/31	28/31	28/31	28/31	29/32	29/32	32/35	32/35	32/35

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