Sonniger HEATER CR Unit Heater (LPHW)

Name: Sonniger HEATER CR Unit Heater (LPHW)
SKU: 1149
Availability: InStock

From: £516.00 ex VAT

The Sonniger HEATER CR fan unit heater (LPHW) is ultra lightweight for its type and ideal for all commercial and industrial applications: retail outlets; leisure centres; exhibition halls; warehouses; factories; garages; workshops; plant rooms.

Ideal for use with hot water generated from biomass boilers as well as gas and oil fired boilers. The CR2 and CR3 models can be used with ground source heating schemes also.

Note: heating outputs in the model selector (kW) are based on a mean water temp 70C & internal ambient temp 20C

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Product Description

The Sonniger Heater CR unit heater (LPHW) is a groundbreaking solution for heating commercial and industrial buildings.

It is uniquely designed and manufactured from expanded polypropylene which reduces the weight of a typical 70kW unit by up to 5 times that of a traditional steel encased unit heater.

This results in ease of installation for the contractor, a lifetime casing guarantee for the customer and significant benefits to the environment.

Model No.	Mount horizontal (m)	Mount vertical (m)	Unit Width (mm)	Unit Height (mm)	Unit Depth (mm)	Weight (kg)	Noise Level (dBa)
R1 (LPHW)	3-8	4-12	680	570	375 (exc bracket)	11.9 (full)	59.4
R2 (LPHW)	3-8	4-12	680	570	375 (exc bracket)	14.8 (full)	59.4
R3 (LPHW)	3-8	4-12	680	570	375 (exc bracket)	16.9 (full)	60.5
Ambient air/de-stratification unit	3-8	4-12	680	570	375 (exc bracket)	9.2	60.5

Key Features

Modern Design
Output range from 10-70kW (at mean water temp 70C & internal temp 0-20C)
Ideal for LPHW fed from Biomass/gas fired/oil fired/ground source heating boilers
Max airflow range 4400 m3/hr to 4900 m3/hr
Extremely Light Weight – 12-17 kg when filled
Easy Installation with Multiple Positional Orientations: horizontal, vertical or tilted
Wall and Ceiling Mountable
Noise 56 dBA at 5m distance
Flexible Control Options: thermostat and 3 speed controller
BMS module available
Dark grey with 3 interchangeable inserts/flashings

Technical Specifications

HEATER CR1
Inlet/outlet water temperature	90/70					80/60					70/50
Inlet air temperature	0	5	10	15	20	0	5	10	15	20	0	5	10	15	20
Air flow 3900 m3/h (speed 3)
Heat output kW	23	21.39	19.68	17.91	16.12	21.07	19.3	17.65	15.93	14.23	16	14.42	12.86	11.28	9.7
Temperature o C	18	25.8	30.71	35.5	40.28	17.16	21.72	26.28	30.84	35.52	12.8	16.92	21.15	25.27	29.40
Water flow m 3 /h	0.8	0.8	0.7	0.7	0.6	0.8	0.8	0.7	0.6	0.6	0.7	0.6	0.6	0.5	0.4
Pressure drop kPa	9.7	8.7	7.7	6.8	5.9	9.7	8.4	7.1	5.9	4.8	7.1	5.9	4.8	3.8	2.9
Air flow 2500 m3/h (speed 2)
Heat output kW	20.97	19.53	18.1	16.65	15.21	16.42	15.1	13.78	12.45	11.12	12.49	11.27	10.4	8.82	7.59
Temperature o C	25.55	30.8	34.62	39.02	43.55	20.88	25.2	29.40	33.72	38.04	15.62	19.53	23.32	27.23	31.13
Water flow m 3 /h	0.8	0.7	0.7	0.6	0.6	0.7	0.6	0.5	0.5	0.4	0.5	0.5	0.4	0.4	0.3
Pressure drop kPa	8	7.1	6.2	5.3	4.5	6.3	5.4	4.6	3.8	3.1	4.6	3.8	3.1	2.5	1.9
Air flow 1850 m3/h (speed 1)
Heat output kW	17.56	16.37	15.16	13.96	12.76	13.77	12.66	11.55	10.45	9.34	10.47	9.45	8.44	7.41	6.37
Temperature o C	28.95	33.23	37.51	41.79	45.94	23.64	27.72	31.8	35.76	39.84	17.68	21.37	25.06	28.75	32.33
Water flow m 3 /h	0.6	0.6	0.6	0.5	0.5	0.5	0.5	0.5	0.4	0.4	0.5	0.4	0.4	0.3	0.3
Pressure drop kPa	5.9	5.2	4.5	3.9	3.3	4.6	3.9	3.3	2.8	2.3	3.4	2.8	2.3	1.8	1.4

HEATER CR2
Inlet/outlet water temperature	90/70					80/60					70/50
Inlet air temperature	0	5	10	15	20	0	5	10	15	20	0	5	10	15	20
Air flow 3350 m3/h (speed 3)
Heat output kW	39.3	36.66	34.03	31.4	28.77	32.52	29.98	27.45	24.91	22.37	26.2	23.74	21.28	18.82	16.34
Temperature o C	32.4	35	37.61	40.21	42.72	27.17	29.7	32.24	34.78	37.32	22.1	24.58	27.05	29.53	32.00
Water flow m 3 /h	1.7	1.6	1.5	1.4	1.2	1.5	1.3	1.2	1.1	1.0	1.2	1.1	1.0	0.9	0.8
Pressure drop kPa	18.2	16	14	12.1	10.4	14.1	12.2	10.4	8.8	7.2	10.5	8.8	7.2	5.8	4.5
Air flow 2000 m3/h (speed 2)
Heat output kW	28.38	26.49	24.62	22.74	20.87	23.52	21.71	19.9	18.08	16.26	18.89	17.23	15.46	13.69	11.91
Temperature o C	39.15	41.37	43.49	44.61	47.83	32.90	34.97	37.13	39.2	41.27	26.87	28.89	30.90	33.01	35.03
Water flow m 3 /h	1.2	1.1	1.1	1.0	0.9	1.1	1.0	0.9	0.8	0.7	0.9	0.8	0.7	0.6	0.5
Pressure drop kPa	10.1	8.9	7.8	6.8	5.8	7.9	6.8	5.8	4.9	4.1	5.9	4.9	4.1	3.3	2.6
Air flow 1450 m3/h (speed 1)
Heat output kW	22.87	21.37	19.89	18.36	16.87	19.89	17.53	16.08	14.62	13.16	15.34	13.92	12.51	11.08	9.65
Temperature o C	43.49	45.42	47.35	49.18	51.11	36.57	38.45	40.23	42.11	43.90	29.89	31.73	33.47	35.21	36.96
Water flow m 3 /h	1.0	09	0.9	0.8	0.7	0.8	0.9	0.7	0.7	0.6	0.7	0.6	0.6	0.5	0.4
Pressure drop kPa	6.9	6.1	5.3	4.6	4.0	5.4	4.7	4.0	3.4	2.8	4.0	3.4	2.8	2.2	1.8

HEATER CR3
Inlet/outlet water temperature	90/70					80/60					70/50
Inlet air temperature	0	5	10	15	20	0	5	10	15	20	0	5	10	15	20
Air flow 2950 m3/h (speed 3)
Heat output kW	50.10	46.86	43.64	40.41	37.18	42.53	39.36	36.17	32.99	29.8	35.3	32.15	29	25.83	22.64
Temperature o C	47.9	49.51	51.02	52.62	54.14	41.02	42.61	44.1	45.69	47.18	34.2	35.77	37.25	38.73	40.21
Water flow m 3 /h	2.3	2.1	2	1.9	1.7	2.0	1.8	1.7	1.5	1.4	1.7	1.5	1.4	1.2	1.1
Pressure drop kPa	29.9	26.5	23.3	20.3	17.5	23.6	20.5	17.6	14.9	12.4	17.8	15	15.5	10.1	8
Air flow 1700 m3/h (speed 2)
Heat output kW	33.3	31.19	29.09	26.98	242.87	28.35	26.27	24.18	22.11	20.01	236	21.53	19.47	17.39	15.28
Temperature o C	56.21	57.35	58.39	59.43	60.47	48.3	49.33	50.36	51.39	52.42	40.39	41.41	42.43	43.44	44.37
Water flow m 3 /h	1.5	1.4	1.3	1.2	1.1	1.3	1.2	1.1	1	0.9	1.1	1	0.9	0.8	0.7
Pressure drop kPa	14.3	12.71	11.21	9.79	8.45	11.34	9.87	8.15	7.24	6.05	8.6	7.29	6.08	4.96	3.94
Air flow 1200 m3/h (speed 1)
Heat output kW	25.5	23.9	22.3	20.71	19.12	21.73	20.16	18.58	17	15.42	18.13	16.57	15	13.41	11.81
Temperature o C	60.36	61.1	6.95	62.69	63.44	52.42	53.26	54.58	54.75	55.6	44	44.74	45.48	46.22	46.86
Water flow m 3 /h	1.2	1.1	1.0	0.9	0.9	1	0.9	0.9	0.8	0.4	0.9	0.8	0.7	0.6	0.6
Pressure drop kPa	8.23	7.86	6.94	6.08	5.26	7.02	6.14	5.3	4.51	3.79	5.35	4.55	3.8	3.11	2.48

Design & Installation

Download Technical Manual

The fan’s motor is equipped with an internal temperature limit fuse protecting the engine from overheating.
The unit set does not include a feeding cable or a master switch.
The electrical installation and connection of the automatic control should be carried out in accordance with the electrical diagram by an appropriately qualified person.
The installation of the unit on the water side should be done in a such a way that enables future maintenance.
Both stub pipes should be connected to manual closing valves in order to cut off the device.