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Lennox CWC 2P Series User Manual

Lennox CWC 2P Series
24 pages
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APPLICATION
GUIDE
CHILLED
WATER CASSETTE
CWC - 2P/4P
English/03-2005
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Lennox CWC 2P Series Specifications

General IconGeneral
BrandLennox
ModelCWC 2P Series
CategoryChiller
LanguageEnglish

Summary

General Description of Lennox Cassette Units

Unit Cabinet Construction

Details the galvanised steel chassis and internal insulation of the unit.

Diffuser Panel Options

Describes the choice between decorative plastic or metallic diffuser panels.

Heat Exchanger Design

Explains the copper tube and aluminium fin construction for maximum efficiency.

Fan Specifications

Details the 3-speed centrifugal fans and their low sound level design.

Air Distribution Features

Explains manual adjustment of louvres for optimized air distribution.

Air Filter Details

Describes the washable polypropylene air filter and its accessibility.

Internal Components Access

Highlights accessibility of internal components and condensate removal.

Electric Circuit Configuration

Details the terminal block for mains power and control box connections.

Available Unit Options

Lists optional features such as electric heaters and fresh air kits.

Unit Specifications and Performance Data

Nominal Air Flow Rates

Specifies nominal air flow (m³/h) across different models and speeds.

Total Cooling Capacity

Provides total cooling capacity (kW) for 2-pipe and 4-pipe systems.

Sensible Cooling Capacity

Details sensible cooling capacity (kW) for various configurations.

Heating Capacity Ratings

Lists heating capacity (kW) for 4-pipe and 2-pipe systems.

Cooling Water Pressure Drop

Specifies water pressure drop (kPa) for cooling circuit operation.

Heating Water Pressure Drop

Specifies water pressure drop (kPa) for heating circuit operation.

Electric Heater Power

Details the power rating (kW) of optional electric heaters.

Fan-Motor Performance

Lists fan motor performance data including power (W) and current (A).

Unit Weight Information

Specifies the unit weight (Kg) for different model sizes.

Plastic Diffuser Weight

Provides the weight (Kg) of the plastic diffuser option.

Metallic Diffuser Weight

Provides the weight (Kg) of the metallic diffuser option.

Cooling Performance Tables - Part 1

CWC 020 2P Cooling Performance

Provides cooling performance data for the CWC 020 2P model.

CWC 020 4P Cooling Performance

Provides cooling performance data for the CWC 020 4P model.

CWC 030 2P Cooling Performance

Provides cooling performance data for the CWC 030 2P model.

CWC 030 4P Cooling Performance

Provides cooling performance data for the CWC 030 4P model.

Cooling Performance Tables - Part 2

CWC 040 2P Cooling Performance

Provides cooling performance data for the CWC 040 2P model.

CWC 040 4P Cooling Performance

Provides cooling performance data for the CWC 040 4P model.

CWC 050 2P Cooling Performance

Provides cooling performance data for the CWC 050 2P model.

CWC 050 4P Cooling Performance

Provides cooling performance data for the CWC 050 4P model.

Cooling Performance Tables - Part 3

CWC 070 2P Cooling Performance

Provides cooling performance data for the CWC 070 2P model.

CWC 070 4P Cooling Performance

Provides cooling performance data for the CWC 070 4P model.

CWC 090 2P Cooling Performance

Provides cooling performance data for the CWC 090 2P model.

CWC 090 4P Cooling Performance

Provides cooling performance data for the CWC 090 4P model.

Heating Performance Tables - Part 1

CWC 020 Heating Performance

Provides heating performance data for the CWC 020 model.

CWC 030 Heating Performance

Provides heating performance data for the CWC 030 model.

CWC 040 Heating Performance

Provides heating performance data for the CWC 040 model.

CWC 050 Heating Performance

Provides heating performance data for the CWC 050 model.

Heating Performance Tables - Part 2

CWC 070 Heating Performance

Provides heating performance data for the CWC 070 model.

CWC 090 Heating Performance

Provides heating performance data for the CWC 090 model.

Water Pressure Drop with Glycol

Explains glycol's effect on pressure drop and cooling/heating duties.

Sound Level Data

Presents sound power and pressure levels for various models and speeds.

Optional Features and Accessories

Electric Heater Technical Data

Provides technical data for optional electric heaters, including power and voltage.

Fresh Air Make Up Installation

Details the installation procedure for integrating fresh air into the unit.

Air Supply to Adjacent Room

Guide for installing ductwork to supply conditioned air to an adjacent room.

Additional Options and Kits

Water Control Valve Kits

Describes kits for 2-way/3-way, on/off, and proportional water control valves.

Auxiliary Drip Tray Installation

Instructions for installing and connecting the auxiliary drip tray.

Fitting and Testing Valves

Information regarding the included fitting and testing valves.

Water Evacuation Security Option

Details the function of the water evacuation security feature.

Unit Dimensions

Models 600 x 600 Dimensions

Presents detailed dimensional drawings for 600x600mm cassette units.

Models 600 x 1200 Dimensions

Presents detailed dimensional drawings for 600x1200mm cassette units.

Unit Installation Guidelines

Installation Clearances

Specifies required clearances for unit installation and servicing access.

Setting Up Template Model 600x600

Information on using the template for precise 600x600 unit installation points.

Setting Up Template Model 600x1200

Information on using the template for precise 600x1200 unit installation points.

Unit Installation Procedures

Installation Steps for Model 600x600

Step-by-step installation instructions for 600x600mm units.

Installation Steps for Model 600x1200

Step-by-step installation instructions for 600x1200mm units.

Electrical Connections - Wiring

Power Supply Wiring Requirements

Guidelines and regulations for power supply wiring.

Electrical Wiring Diagrams

Presents electrical connection diagrams for various unit configurations.

Electrical Connections - Plumbing

Drain Pipework Installation

Details on correctly installing drain pipework for condensate removal.

Condensate Pump Hose

Information on the condensate pump flexible hose and installation.

Drain Tube Details

Description of the drain tube connection and its removable cap.

Diffuser and Inlet Grille Installation

Plastic Diffuser Panel Mounting

Instructions for mounting the plastic diffuser panel and air intake grille.

Metallic Diffuser Panel Mounting

Instructions for mounting the metallic diffuser panel and air intake grille.

Maintenance - Air Filter

Importance of Air Filter Installation

Emphasizes the necessity of always installing the air filter.

Air Filter Cleaning Procedure

Provides a step-by-step guide for cleaning the unit's air filter.

Maintenance - Component Access

Coil Cleaning Instructions

Guidelines for cleaning the unit's internal coil.

Accessing Electrical Components

Guidance on how to access the unit's electrical components.

Maintenance - Internal and Faults

Accessing Internal Components

Steps for accessing internal parts like fan motor and condensate pump.

Disassembling the Drip Tray

Procedure for removing the unit's drip tray.

Air Distribution Louvres

Explains louvre positioning for heating and cooling modes.

Fault Analysis and Troubleshooting

Troubleshooting guide for common unit operational problems.

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