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Table of Contents
Related Manuals for Lennox CWC 020
Summary of Contents for Lennox CWC 020
- Page 1 INSTALLATION-OPERATION & MAINTENANCE MANUAL CHILLED WATER CASSETTE...
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Page 2: Table Of Contents
Congratulations, you have made a wise choice with the purchase of your Lennox chilled water ceiling cassette. This product has been designed, assembled and supplied in one of our world class manufacturing facilities and we feel sure that it will meet your expectations. -
Page 3: Product Range
PRODUCT RANGE NOMINAL CAPACITY KW MODEL V / Ph / 50 Hz COOLING HEATING CWC 020 230 V - 1Ph 230 V - 1Ph CWC 030 CWC 040 230 V - 1Ph CWC 050 230 V - 1Ph PACKING CONTENT... -
Page 4: General Information
GENERAL INFORMATION The CEILING CASSETTES are designed to operate with chilled and hot water. They provide both cooling and dehumidification in cooling mode and heating in the latter, cleaning and filtering the air in the process. Electrical heating elements are available as an option on all units excluding the CW050. -
Page 5: Specification
SPECIFICATIONS 2 PIPES SYSTEM CWC 020 CWC 030 CWC 040 CWC 050 UNIT Total cooling capacity 2000 3500 4400 5200 W(1) Sensible total capacity 1650 2750 3400 3750 W(1) Chilled water flow rate l/h(1) kPa(1) Chilled water pressure drop Water content... -
Page 6: Electrical Connections
SPECIFICATIONS WATER PRESSURE DROP PRESSURE DROP FLOW RATE CWC 020 CWC 030 CWC 040 CWC 050 As the percentage of glycol increases the ---- ---- ---- standard pump flow decreases due to the ---- ---- ---- increased pressure characteristics. This... -
Page 7: Unit Dimensions
UNIT DIMENSIONS (mm.) Branch duct knockout hole, to supply air into adjacent area. CASSETTE UNIT 4 x hanging brackets (M 8) Condensate pump flexible hose 10mm ID 15mm OD Air vent Fresh air knockout panel for branch duct. Outlet water connection 1/2” G DIFFUSER PANEL Inlet water connection 1/2”... -
Page 8: Drain Pipework
DRAIN PIPEWORK CONDENSATE PUMP FLEXIBLE HOSE DRAIN TUBE CONDENSATE PUMP FLEXIBLE HOSE • The unit is fitted with a condensate pump to ensure condensate removal. • To insure that there is condensate flow, the drain tube must be installed with a fall of 2 % without obstructions, or without rising sections. -
Page 9: Installation
INSTALLATION METHOD (CONTINUED) 3. Cut the false ceiling, to a maximum dimension of 7. When lifting the cassette into position care should 625x625 mm. For a panelled ceiling removes one be taken not to lift the unit by, the drip tray, water panel of 600x600 mm. -
Page 10: Control Panel
CONTROL PANEL 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. ACCESS TO THE ELECTRICAL COMPONENTS OF THE UNIT Cover Removing the corresponding plate cover screws gives plate for... -
Page 11: Instalation Of Diffuser And Inlet Grille
Cassette unit INSTALLATION OF DIFFUSER AND INLET GRILLE 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. MOUNTING THE DIFFUSER PANEL TO THE UNIT Check that the position in which the diffuser is mounted is the right one. -
Page 12: Maintenance
MAINTENANCE HOOKS 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. CLEANING THE AIR FILTER 1.- Stop the unit. 2.- Open the air intake grille on the unit. -
Page 13: Air Distribution
MAINTENANCE 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. ACCESS TO INTERNAL COMPONENTS When checking or replacing any internal component of the unit eg coil, fan motor, condensate pump, float switch, the drip tray and volute must be removed. -
Page 14: Options
Air flow supplied to an adjacent room in m /h, fresh air fan at high speed. CWC 020- CWC 030 CWC 040 CWC 050... -
Page 15: Fault Analysis
OPTIONS WATER CONTROL VALVE KIT (2 AND 4 WAYS, ON/OFF AND PROPORTIONAL) NOTE THE CORRECT POSITION OF THE WATER CONTROL VALVE Coupling Water control valve (4 ways) AUXILIARY DRIP TRAY • Install the auxiliary drip tray as shown in the illustration. •... -
Page 16: Points To Keep In Mind
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. - Page 17 : + 31 33 2471 800 fax : + 31 33 2459 220 e-mail : info lennoxbenelux.com POLAND : LENNOX POLSKA SP z o.o. tél. : + 48 22 832 26 61 fax : + 48 22 832 26 62 e-mail : lennoxpolska inetia.pl PORTUGAL : LENNOX CLIMATIZAÇAO LDA.