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18

The air filter cleaning operations do not 
require technical service; however when 
an electrical or mechanical operation 
is required call an Engineer.

WARNING

Electric shock hazard can cause injury 
or death. Before attempting to perform 
any service or maintenance on the 
unit, turn OFF the electrical power, 
and check that the fan has stopped.

FILTER CLEANING

Check the air filter and make 
sure it is not blocked with dust 
or dirt.

If the filter is dirty, wash it in a bowl with neutral 
soap and water, drying it in the shade before 
inserting it in the unit.

Standard Guidelines to Lennox Refac equipment

All technical data contained in these operating instructions including the diagrams and technical description 
remains the property of Lennox Refac and may not be used (except for the purpose of familiarising the user 
with the equipment), reproduced, photocopied, transferred or transmitted to third parties without prior written 
authorisation from Lennox Refac.

The data published in the operating instructions is based on the latest information available. We reserve the 
right to make modifications without notice.

We reserve the right to modify our products without notice without obligation to modify previously supplied 
goods.

These operating instructions contain useful and important information for the smooth operation and maintenance 
of your equipment.

The instructions also include guidelines on how to avoid accidents and serious damage before commissioning 
the equipment and during its operation and how to ensure smooth and fault-free operation. Read the operating 
instructions carefully before starting the equipment, familiarise yourself with the equipment and handling of 
the installation and carefully follow the instructions. It is very important to be properly trained in handling the 
equipment. These operating instructions must be kept in a safe place near the equipment.

Like most equipment, the unit requires regular maintenance. This section concerns the maintenance personnel 
and management.
If you have any queries or would like to receive further information on any aspect relating to your equipment, 
do not hesitate to contact us.

Risk of injury with 

rotating objects

Low 

temperatures

High 

temperatures

Risk of injury with 

moving objects

Electrical 

voltage

Abrasive 

surfaces

POINTS TO KEEP IN MIND

Summary of Contents for CWC 070-2P

Page 1: ...WATER CASSETTE INSTALLATION OPERATION MAINTENANCE MANUAL...

Page 2: ...ternational organisation with world wide distribution takes pride in supplying you with this product CONTENTS PRODUCT RANGE GENERAL INFORMATION SPECIFICATION COOLING CAPACITIES HEATING CAPACITIES WATE...

Page 3: ...WC 070 4P CWC 090 4P COOLING HEATING 8450 5800 7050 10600 6450 LENNOX Cassette unit Difusser Installation manual Hanging bracket insulation Screws and washers Setting up template Packed separately PRO...

Page 4: ...e which is removed by means of a condensate pump Made in decorative plastic with a smooth finish Internal insulation prevents condensation from forming Four louvres ensure air distribution A polypropy...

Page 5: ...water pressure drop Pipe connections Sound level Lp Diffuser dimensions Cassette dimensions Diffuser weight Cassette weight Chilled water pressure drop Hot water pressure drop Total heating capacity T...

Page 6: ...tric heater power consumption Running current with electric heater 4 PIPES SYSTEM Pipe connections Sound level Lp Diffuser dimensions Cassette dimensions Diffuser weight Cassette weight Chilled water...

Page 7: ...ing capacity 6600 W To estimate the water flow use the formula Qw Pt x 0 86 Qw Water flow l h T Pt Total cooling capacity W T Inlet water temperature outlet water temperature C For the example given Q...

Page 8: ...speed fan For a different speed the given values must be multiplied by the following correction factors HEATING CAPACITY EXAMPLE For the unit CWC 090 2P with entering water temperature entering air te...

Page 9: ...46 9 11 14 16 1160 24 18 1450 33 28 CWC 070 4P CWC 090 4P CWC 090 4P CWC 070 4P 400 900 500 1000 1200 700 600 800 24 27 COOL WATER HOT WATER 7 9 11 21 15 16 18 PRESSURE DROP Kpa 1100 1300 1400 1500 16...

Page 10: ...IFFUSER PANEL 298 37 152 197 Outlet cool water connection 3 4 G Inlet cool water connection 3 4 G 75 63 24 Drain tube 16 mm O D Condensate pump flexible hose 10 mm I D 15 mm O D Electrical cable entry...

Page 11: ...t is necessary to remove any water that accumulates in the drip tray 1 The unit should be positioned centrally within the room The ceiling must be horizontal to ensure that the unit is on level The un...

Page 12: ...The water connections should be positioned before that the unit is installed 6 When lifting the cassette into position care should be taken not to lift the unit by the drip tray water connection drai...

Page 13: ...al power and check that the fan has stopped 1 3 2 3 CONTROL PANEL Removing the corresponding plate cover screws gives access to the electrical board and terminal plate as indicated on the drawing For...

Page 14: ...ected with the power supply wires it depends on versions Check that the position in which the diffuser is mounted is the right one 1 Release the air intake grille 2 The diffuser panel can then be prov...

Page 15: ...a risk of damaging the unit through dust contamination ACCESS TO ELECTRICAL COMPONENTS Fig 2 3 1 Stop the unit 2 Open the air intake grille on the unit Open the grille by way of two hand triggers whi...

Page 16: ...trol as well the louvres may be set to move continuously sweep mode For more information see the remote control manual DIRECCIONAMIENTO DE AIRE DRIP TRAY VOLUTE MAINTENANCE 1 2 Louvre position for cor...

Page 17: ...xible polyester type or corrugate aluminium externally covered with anti condensate material The duct length can be calculated by taking into account the pressure drop through the unit using the follo...

Page 18: ...ay be faulty 3 Condensate overflowing Check drip tray for blockage and condensate drains away Check unit is level Check condensate pump is working Check service drain pipework Install the auxiliary dr...

Page 19: ...eserve the right to make modifications without notice We reserve the right to modify our products without notice without obligation to modify previously supplied goods These operating instructions con...

Page 20: ...l 49694209790 fax 496942097940 e mail info lennoxdeutschland com LENNOXBENELUXB V t l 31332471800 fax 31332459220 e mail info lennoxbenelux com LENNOXPOLSKASPzo o t l 48228322661 fax 48228322662 e mai...

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