Heating and cooling units – up to 65.4 kW of heating and 37.4 kW of cooling

A decentralised cooling and heating system is created by our wall mounted fan cooler and heater unit. These heating and cooling units are very flexible and work well with reversible ground source heat pumps,commercial air source heat pumps for lower environmental impact, chillers, and condensing gas boilers,amongst other heat sources as a central heating system.

They are a two-in-one device that provides heating in winter and efficient cooling in summer by air heating and cooling.

Cooling and heating units

The air streaming through the heat exchanger is either cooled or warmed up depending on the operating mode . Our fan heaters and cooling units are used to heat and cool large rooms or buildings, such as commercial, industrial, public, manufacturing plants, or other commercial applications or buildings and benefit from quiet operation.

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Commercial heating and cooling

These combined heating and cooling devices are intended for use inside, in environments where the highest possible levels of air dustiness do not exceed 0.3 g/m3.

These energy efficient units are to be wall mounted only, pushing the air flow from these combined heating and cooling unit heaters out horizontally.

If you require a commercial ceiling mounted heater and cooling option, that can either be ceiling mounted or recessed into a false ceiling up to 8 metres then we do a range of commercial heating and cooling units, and they have their own dedicated webpage here – commercial ceiling heaters

 

The heating medium’s low temperature is the defining feature of this all-purpose energy efficient combined cooling and heating unit, which is designed to work with a variety of thermal sources, including condensing gas boilers, chillers, reversible heat pumps, and geothermal systems, among others.

Copper, aluminium, and galvanised steel are the primary materials utilised in the construction of these combined heater-cooler units. It is prohibited to install units in commercial applications or environments that are corrosive. The units cannot be used in an atmosphere that contains oil mist in any capacity.

Heat Exchanger

A special hydrophilic layer, with thin lamella spacing, and a 4-row heat exchanger in the Cool XL4 or a 3-row water heat exchanger in the Cool L3 provide a large heating and cooling capacity.

There is one heat exchanger , that can either be fed by hot water or chilled water, this is achieved by changing the fluid entering it, whether it it be warm water or chilled water. This is controlled via control valves on the feed to the unit to produce either warm air or cool air as required providing central air conditioning systems to your building.

 

	LEO COOL L3			LEO COOL XL4
Fan speed	III	II	I	III	II	I
Maximum air flow [m3/h]	2300	2050	1150	4200	3350	2000
Range of cooling capacity [kW] (1)	2.2 – 17.1			6.1 – 37.4
Nominal cooling capacity (7/12/26°C. 55%. III step) [kW] (2)	9.7			21.8
Range of heat output power [kW] (3)	3.1 – 32.2			7.5 – 65.4
Nominal heat output power  (70/50/16°C, III step) [kW] (4)	23.1			47.6
Power supply [V/Hz]	230/50
Max. current consumption [A]	1.5	1.2	0.6	2.4	1.8	1.4
Max. power consumption [W]	340	240	120	550	370	270
IP / Insulation class	54/F
Max. acoustic pressure level [dB(A)] (5)	64.1	54.5	42.1	67.5	61.1	52.3
Max. acoustic power level [dB(A)] (6)	79.2	69.6	57.2	82.6	76.2	67.8
Isothermal horizontal airflow range [m] (7)	18	12.7	7.1	20.5	16.3	9.7
Maximum heating hot water temperature [°C]	70C (water or maximum 60% glycol solution)
Max. operating pressure [MPa]	1.6 ( 16 Bar)
Connection [”]	3/4″
Type of casing	EPP (expanded polypropylene)
Colour	grey(8), black
Usage	inside buildings
Max. working room temperature  [°C]	55
Position of operation	Horizontal installation Only
Weight of unit [kg]	23.1			36
Weight of unit filled with water [kg]	25.8			41.1

 

Notes relating to the above technical table for our heater cooler units from Flexiheat UK

(1)    Range of cooling capacity at given parameters:
min. – I step of fan, temperature of cooling medium 10/15°C, air temperature/relative humidity at the supply to the device 24°C/55%;
max. – III step of fan, temperature of cooling medium 3/8°C, air temperature/relative humidity at the supply to the device 32°C/40%
(2)    Nominal cooling capacity at given parameters:
III step of fan, temperature of cooling medium 7/12°C, air temperature/relative humidity at the supply to the device 26°C/55%;
(3)    Range of heating power at given parameters:
min. – I step of fan, temperature of heating medium 40/30°C, air temperature at the supply to the device 20°C;
max. – III step of fan, temperature of heating medium 70/50°C, air temperature at the supply to the device 0°C.
(4)    Nominal heating power at given parameters: III step of fan, temperature of heating medium 70/50°C, air temperature at the supply to the device 16°C.
(5)    Acoustic pressure level has been measured 5 m from the unit in a 1,500 m3 space with a medium sound absorption coefficient
(6)    Acoustic power level according to EN ISO 3744:2011
(7)    Horizontal isothermal range for 0.5 m/s boundary air stream speed 0.5 m/s
(8)    Similar to RAL 9007

 

Download the Heating and Cooling units Leo Cool Brochure – Flexiheat UK

Download the LEO Cool -Heating and Cooling unit heater manual – Flexiheat UK

Fan on our commercial heating and air conditioning device

Three-speed fans are included with our heater cooler units. It is the most straightforward and efficient method of managing the fan heater and cooler performance and outputs

Heating HVAC system

The warm air side of these units can be fed with a maximum heating medium temperature of 70 °C to the heater, so this makes it ideal for being fed by low temperature systems such as heat pumps or condensing boilers on a low temperature system of 70/50C or lower. These lower hot water temperatures  unsure a high energy efficiency ratio for the heating side or heater element of this central heating and cooling HVAC system.

Cooling requirements

Normally supplied with a chilled water temperature of 7C flow and 12C return when the unit is operating in the cooling mode, which tends to be the standard system temperatures for a chilled water system. However, if you have different temperatures, then we have software that can calculate the output data at these different temperatures.

The use of a droplet eliminator that is fitted with outlet blades helps to ensure that no droplets of condensate are carried away by the supply air stream. The water that is collected in the condensate drain pan is drained thanks to gravity. It is required that a drainpipe be connected to the drain pan to remove this away from the unit.

 

Installation applications for these air conditioning and heating appliances

They are used to cool or heat warehouses, logistical hubs, factory facilities, food industry, sports arenas, and other big and mid-sized buildings.

Heating and cooling systems

If you need any additional assistance, selection, or pricing on our heating and cooling units for commercial and industrial applications, please fill out the contact us form on the website, or call our UK sales team professionals at 01202 822221, who are available to support and assist you with any aspect of your cooler and heater project. Follow us on Facebook or Twitter to find out about our new products and news.