All the technical and technological information contained in this manual, including any drawing and technical descriptions provided by us, remain the property of Lennox and must not be utilised (except in the operation of this product), reproduced, issued to or made available to third parties without the prior written agreement of Lennox.
On standard version the unit cleans, filters, cools and dehumidifies the air (FWCK), and in addition heats if it is heat pump unit (FWHK). You are able to incorporate option elements such as electrical heater or hot water coil.
FANS SPECIFICATIONS FWCK/FWHK 04 HIGH SPEED 1050 MEDIUM SPEED AIR FLOW LOW SPEED Unit leaves the factory with three speeds connected. AVAILABLE STATIC PRESSURE FWCK/FWHK 06 HIGH SPEED 1550 1450 1350 1250 1150 1000 AIR FLOW m /h MEDIUM SPEED...
COOLING AND HEATING CAPACITIES FWCK/FWHK 04 -Nominal air flow 750 m COOLING CAPACITY FWCK/FWHK HEATING CAPACITY FWHK Water pressure Water inlet Water flow drop temperature ºC Total capacity Sensible capacity Total power input Total capacity Total power input Minimum -----...
FWCK/FWHK 08 -Nominal air flow 1900 m COOLING CAPACITY FWCK/FWHK HEATING CAPACITY FWHK Water pressure Water inlet Water flow drop temperature ºC Total capacity Sensible capacity Total power input Total capacity Total power input Minimum ----- ----- ----- ----- -----...
4,85 ----- ----- Maximum 3197 12,38 10,15 4,74 ----- ----- FWCK/FWHK 22 - Nominal air flow 3500 m COOLING CAPACITY FWCK/FWHK HEATING CAPACITY FWHK Water pressure Water inlet Water flow drop temperature ºC Total capacity Sensible capacity Total power input...
1,00 1,00 1,08 AIR INLET The data in the capacity tables has been calculated for air inlet temperature: 27ºC DB and 19ºC WB. For another conditions use these correction factors. COOLING MODE FWCK/FWHK Air inlet temperature 21ºC 24ºC 27ºC 29ºC 32ºC...
08-10 12-16-22 1083 1503 RETURN AIR Ñ SUPPLY AIR WATER INLET/OUTLET Inlet RETURN AIR SUPPLY AIR Outlet FWCK/FWHK 04-06-07 MOTOR FAN COMPRESSOR AIR OUTLET COIL AIR FILTER WATER EXCHANGER ELECTRICAL BOX AIR INLET DRAIN PAN FWCK/FWHK 08-10 AIR OUTLET INLET/OUTLET WATER CONNECTION...
>0.1 • Keep in mind water inlet temperature to the unit. If this temperature is below 15ºC for cooling only units (FWCK), you will need to install a water regulation pressostatic valve (as an option element) to keep condensation temperature value between 40 and 45ºC.
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• All models include three fan speed motor fan, except for FWCK/FWHK 22 models. The transmission for this model is done through pulleys and belts. • Make the motor fan connections for the fan speed required and adjust the pulley for FWCK/FWHK 22 models in order to adequate the air flow needed for the installation.
SERVICE AND MAINTENANCE •The unit under supply, has rotating objects and generates high temperatures into the pipes. Make sure to turn off electrically the unit before to access for maintenance or revision. • Air filter: Clean the filter periodically (maximum each 6 months), but the clean of the filter depends on the ambient where the unit is working.
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SERVICE AND MAINTENANCE PROTECTIONS ADJUSTMENT (FWCK / FWHK) DESCRIPTION UNITS RATED EFFECT RESET FWHK FWCK Unit stops Manual (electric) STD high pressure switch. (HP) 28,7 kg/cm 24 kg/cm High pressure switch (HP) with 24 kg/cm 19 kg/cm Unit stops Manual (electric) presostatic valve as option.
OPTIONS HOT WATER COIL 1 ROW TECHNICAL DATA (for cooling only units). FWCK/FWHK 04-06-07 DIFFERENCES BETWEEN WATER INLET TEMPERATURE AND COIL AIR INLET TEMPERATURE (ºC) CAPACITY IN kW FOR WATER FLOW OF 250 L/H . 5,10 4,25 3,40 PRESSURE AIR DROP = 15 Pa.
• Take out the knock out, and take the electrical supply of the electrical heater to the electrical box of the unit. There is a different power supply for electrical heater (see page 4). PRESOSTATIC VALVE (only for units FWCK) This option is supplied loose.
All technical data contained in these operating instructions including the diagrams and technical description remains the property of Lennox and may not be used (except for the purpose of familiarizing the user with the equipment), reproduced, photocopied, transferred or transmitted to third parties without prior written authorization from Lennox.
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BELGIUM, LUXEMBOURG PORTUGAL Due to Lennox’s ongoing commitment to quality, www.lennoxbelgium.com www.lennoxportugal.com the Specifications, Ratings and Dimensions are subject to change without notice and without incurring liability. CZECH REPUBLIC RUSSIA Improper installation, adjustment, alteration, www.lennox.cz www.lennoxrussia.com service or maintenance can cause property damage or personal injury.