Sonniger CR MAX Unit Heater Condens (LPHW) for Heat Pumps

Name: Sonniger CR MAX Unit Heater Condens (LPHW) for Heat Pumps
SKU: 6679
Availability: InStock

From: £825.00 ex VAT

The Sonniger HEATER CR MAX fan unit heater condens (LPHW) is lightweight for its type and ideal for all commercial and industrial applications: retail outlets; leisure centres; exhibition halls; warehouses; factories; garages; workshops; plant rooms. It gives higher outputs than the traditional Sonniger CR Unit Heaters.

Ideal for use with hot water generated from biomass boilers as well as gas and oil fired boilers. The CR MAX range works well with Heat Pumps.

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 MAX unit heater condens (LPHW) is a ground-breaking solution for heating commercial and industrial buildings.

It is uniquely designed and manufactured from expanded polypropylene and can produce far greater outputs than the traditional CR Unit Heater range.

This results in ease of installation for the contractor, a lifetime casing guarantee for the customer and significant benefits to the environment. The CR MAX range works well with Heat Pumps.

Model No.	Max airflow range (m)	Unit Width (mm)	Unit Height (mm)	Unit Depth (mm)	Weight (kg)	Noise Level (dBa)
CR2 MAX (LPHW)	26	780	718	385 (exc bracket)	25.2 (full)	59
CR3 MAX (LPHW)	25	780	718	385 (exc bracket)	27.4 (full)	58
CR4 MAX (LPHW)	23	780	718	385 (exc bracket)	28 (full)	58

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Key Features

Modern Design
Output range from 20-80kW (at mean water temp 70C & internal temp 0-20C)
Ideal for LPHW fed from anything from ground source heat pumps to biomass/gas fired/oil fired/ground source heating boilers
Max airflow range 2400 m3/hr to 5700 m3/hr
Light Weight – 25-28 kg when filled
Easy Installation with Multiple Positional Orientations: horizontal, vertical or tilted
Wall and Ceiling Mountable
Noise 59 dBA at 5m distance and fan speed 3
Flexible Control Options: thermostat and 3 speed controller
BMS or WiFi connectivity available via intelligent control panel
Dark grey with 3 interchangeable inserts/flashings

Technical Specifications

HEATER CR2 MAX
Inlet/outlet water temperature	50/30					70/50					120/90
Inlet air temperature	0	5	10	15	20	0	5	10	15	20	0	5	10	15	20
Air flow 5700 m3/h (speed 3)
Heat output kW	24.5	20.5	16.5	12.3	7.5	39.7	35.9	32.0	28.3	24.5	72.4	68.5	64.5	60.6	56.8
Temperature o C	13.7	16.8	19.8	22.7	25.0	22.3	23.5	28.6	31.7	34.8	39.3	42.6	45.9	49.1	52.2
Water flow m 3 /h	0.8	0.6	0.5	0.4	0.2	01.3	1.2	1.0	0.9	0.8	1.6	1.5	1.4	1.3	1.3
Pressure drop kPa	3.5	2.5	1.7	0.9	0.3	8.4	7.0	5.7	4.5	3.5	10.9	9.8	8.8	7.9	7.0
Air flow 3900 m3/h (speed 2)
Heat output kW	19.6	16.4	13.1	9.7	4.4	31.7	28.6	25.6	22.6	19.6	57.4	54.3	51.1	48.0	45.0
Temperature o C	15.9	18.6	21.3	23.7	24.4	25.9	28.8	31.6	34.5	37.2	45.8	48.8	51.9	54.8	57.7
Water flow m 3 /h	0.9	0.8	0.6	0.5	0.2	1.6	1.4	1.3	1.1	1.0	2.0	1.9	1.8	1.7	1.5
Pressure drop kPa	5.1	3.7	2.5	1.4	0.4	12.3	10.2	8.3	6.7	5.1	16.1	14.5	13.0	11.6	10.3
Air flow 2800 m3/h (speed 1)
Heat output kW	15.9	13.3	10.6	7.7	4.0	25.6	23.2	20.7	18.3	15.9	46.5	43.9	41.3	38.9	36.4
Temperature o C	18.0	20.4	22.7	24.5	25.4	29.2	31.9	34.5	37.0	39.4	51.5	54.5	57.2	59.9	62.5
Water flow m 3 /h	0.8	0.6	0.5	0.4	0.2	1.3	1.2	1.0	0.9	0.8	1.6	1.5	1.4	1.3	1.3
Pressure drop kPa	3.5	2.5	1.7	0.9	0.3	8.4	7.0	5.7	4.5	3.5	10.9	9.8	8.8	7.9	7.0

HEATER CR3 MAX
Inlet/outlet water temperature	50/30					70/50					120/90
Inlet air temperature	0	5	10	15	20	0	5	10	15	20	0	5	10	15	20
Air flow 5600 m3/h (speed 3)
Heat output kW	31.9	27.0	22.2	17.2	11.8	53.0	48.0	43.1	38.2	33.3	96.6	91.4	86.3	81.2	76.2
Temperature o C	20.9	24.8	28.4	31.9	35.1	35.0	39.3	43.3	47.4	51.3	63.2	68.1	72.6	77.2	81.8
Water flow m 3 /h	1.4	1.2	0.9	0.7	0.5	2.2	2.0	1.8	1.6	1.4	2.6	2.5	2.4	2.2	2.1
Pressure drop kPa	10.5	7.8	5.4	3.4	1.7	23.7	19.8	16.3	13.1	10.2	28.9	26.1	23.5	21.0	18.7
Air flow 3800 m3/h (speed 2)
Heat output kW	25.3	21.4	17.5	13.5	9.0	41.9	37.9	34.0	30.2	26.4	76.2	72.1	68.0	64.0	60.0
Temperature o C	24.2	27.6	30.8	33.8	36.0	40.4	44.3	47.9	51.5	55.0	72.9	77.4	81.7	85.8	89.8
Water flow m 3 /h	1.1	0.9	0.7	0.6	0.4	1.7	1.6	1.4	1.3	1.1	2.1	2.0	1,9	1.7	1.6
Pressure drop kPa	6.9	5.1	3.6	2.2	1.1	15.4	12.9	10.6	8.5	6.7	18.7	16.9	15.2	13.6	12.1
Air flow 2750 m3/h (speed 1)
Heat output kW	20.1	17.3	14.1	10.8	6.1	33.7	30.5	27.4	24.3	21.2	61.3	58.0	54.7	51.4	48.2
Temperature o C	27.2	30.1	32.8	35.2	35.5	45.3	48.8	52.1	56.1	58.2	81.7	85.8	89.7	93.5	97.1
Water flow m 3 /h	0.9	0.7	0.6	0.5	0.3	1.4	1.3	1.1	1.0	0.9	1.7	1.6	1.5	1.4	1.3
Pressure drop kPa	4.7	3.5	2.4	1.5	0.5	10.4	8.7	7.2	5.8	4.5	12.6	11.4	10.2	9.2	8.1

HEATER CR4 MAX
Inlet/outlet water temperature	50/30					70/50					120/90
Inlet air temperature	0	5	10	15	20	0	5	10	15	20	0	5	10	15	20
Air flow 5100 m3/h (speed 3)
Heat output kW	42.1	35.7	29.3	22.9	16.0	68.3	61.9	55.5	49.2	42.9	121.6	115.0	108.4	101.9	95.5
Temperature o C	26.9	29.8	32.6	35.3	37.6	44.1	47.5	50.6	53.8	56.8	78.0	81.8	85.5	89.2	92.6
Water flow m 3 /h	1.6	1.4	1.1	0.9	0.6	2.6	12.4	2.1	1.9	1.6	3.1	3.0	2.8	2.6	2.5
Pressure drop kPa	14.3	10.7	7.5	4.8	2.5	32.1	26.8	22.0	17.7	13.8	39.2	35.4	31.8	28.4	25.2
Air flow 3400 m3/h (speed 2)
Heat output kW	32.3	27.4	22.5	17.5	12.1	52.2	47.2	42.4	37.6	32.9	92.8	87.7	82.6	77.7	72.8
Temperature o C	30.9	33.3	35.6	37.6	39.0	50.5	53.4	56.1	58.7	61.1	89.1	92.5	95.8	98.9	101.9
Water flow m 3 /h	1.2	1.1	0.9	0.7	0.5	2.0	1.8	1.6	1.4	1.3	2.4	2.3	2.1	2.0	1.9
Pressure drop kPa	8.9	6.6	4.6	2.9	1.5	19.6	16.4	13.5	10.9	8.5	23.9	21.6	19.4	17.3	15.4
Air flow 2400 m3/h (speed 1)
Heat output kW	25.3	21.5	17.6	13.6	9.0	40.7	36.9	33.1	29.4	25.7	72.3	68.3	64.4	60.5	56.7
Temperature o C	34.4	36.4	38.1	39.4	39.7	56.1	58.4	60.7	62.9	64.9	98.8	101.8	104.7	107.3	109.9
Water flow m 3 /h	1.0	0.8	0.7	0.5	0.3	1.6	1.4	1.3	1.1	1.0	1.9	1.8	1.7	1.6	1.5
Pressure drop kPa	5.7	4.2	3.0	1.9	0.9	12.5	10.5	8.6	6.9	5.4	15.2	13.7	12.3	11.0	9.7

Design & Installation

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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.