Lennox International Inc Lennox Air Handler Manual and CBWMV Hydronic Air Handler Instructions
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E2006 Lennox Industries Inc.

Dallas, Texas, USA

RETAIN THESE INSTRUCTIONS

FOR FUTURE REFERENCE

WARNING

Due to higher operating pressures, CBWMV units must not be applied to steam boiler systems.

CAUTION

Unit is designed to be used with non−potable boiler systems only.

INSTALLATION

INSTRUCTIONS

CBWMV Series Units

AIR HANDLERS

505,047M

09/06Litho U.S.A. Supersedes 02/06

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Shipping & Packing List . . . . . . . . . . . . . . . . . . . . . . . . 1

CBWMV Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . 2

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

CBWMV Unit Parts Arrangement . . . . . . . . . . . . . . . . 3

CBWMV Unit Parts Description . . . . . . . . . . . . . . . . . . 3

CBWMV Unit Optional Accessories . . . . . . . . . . . . . . 3

Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Installation − Setting Equipment . . . . . . . . . . . . . . . . . . 4

Duct System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Return Air Opening Guidelines . . . . . . . . . . . . . . . . . . 6

Filter Assembly & Filters . . . . . . . . . . . . . . . . . . . . . . . 8

Plumbing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Freezestat Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 12

BDC3 Variable Blower Control Board . . . . . . . . . . . . . 12

Blower Speed Adjustments . . . . . . . . . . . . . . . . . . . . . 12

Initial Air System Purging . . . . . . . . . . . . . . . . . . . . . . . 16

System Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Annual Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Service Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Winterizing the CBWMV Unit . . . . . . . . . . . . . . . . . . . . 17

Repair Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Troubleshooting:

Continuous Fan Sequence of Operation . . . . . . . . . . 18

Cooling Sequence of Operation . . . . . . . . . . . . . . . . . 19

Heating Sequence of Operation . . . . . . . . . . . . . . . . . 20

CAUTION

Shipping & Packing List

Physical contact with metal edges and corners while applying excessive force or rapid motion can result in personal injury. Be aware of, and use caution when working near these areas during installation or while servicing this equipment.

Introduction

The multi−positional Dave Lennox Signature tCollection CBWMV air handler/hot water coil unit is designed to be used with non-potable boiler systems for warm air heating. A variety of Lennox air conditioning systems may be ap- plied to the CBWMV unit for optional cooling.

1 − CBWMV Air Handler [NOTE − Includes freezestat mounted to the manifold.]

1 − Bag assembly containing:

1 − Electrical make−up box

1 − Copper fitting

1 − Snap bushing

2 − Water line grommets

3 − Wire nuts 2−7/8" cabinet plugs

Check equipment for shipping damage. If you find any damage, immediately contact the last carrier.

09/06

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505,047M

*2P0906*

*P505047M*

 

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Contents Shipping & Packing List Table of ContentsIntroduction TOP View Cbwmv Unit Dimensions − inches mmGeneral Cbwmv Unit Optional AccessoriesCbwmv Unit Parts Arrangement Cbwmv Unit Parts DescriptionCbwmv Unit Service Clearances Installation − Setting EquipmentRequirements ApplicationCbwmv Multi−Positional Unit Duct SystemReturn Air Plenum Return Air Opening Guidelines Removing the Bottom Panel Leveling Bolt InstallationHorizontal Applications Unit Suspended in Attic or CrawlspacePlumbing Filter Assembly & FiltersElectrical Field Wiring Application Jumper Settings See figure Electrostatic Discharge ESD Precautions And ProceduresRemoveable Jumpers Accessory Relay Field Wiring K212 Accessory Field Wiring K212Accessory Field Wiring TB66 & TB67 Indoor Blower SpeedsTypical Cbwmv Wiring Freezestat Operation Blower Speed AdjustmentsBDC3 Variable Blower Control Board Factory Blower Speed Tap Settings Jumper SettingsCBWMV−36B−070 Blower Performance CBWMV−24B−040 Blower PerformanceCBWMV−60C−100 Blower Performance CBWMV−36C−090 Blower PerformanceCBWMV−60C−120 Blower Performance Initial Air PurgingAir Bleed Valve Location Annual Service System AdjustmentsService Filters Repair Parts ListYES Troubleshooting Continuous Fan Sequence of OperationTroubleshooting Cooling Sequence of Operation Troubleshooting Heating Sequence of Operation

CBWMV, AIR HANDLERS specifications

Lennox International Inc is a renowned leader in the heating, ventilation, and air conditioning (HVAC) industry, known for its commitment to innovation and energy efficiency. Among its impressive lineup of products, the CBWMV air handlers stand out as a reliable solution for optimal indoor climate control.

The CBWMV air handler is designed to provide efficient and effective airflow while being easy to install and maintain. One of the key features of the CBWMV model is its variable speed blower motor, which allows for precise control of airflow and temperature. This innovation not only enhances comfort levels within a space but also contributes to significant energy savings. By adjusting the speed of the motor according to the heating or cooling demand, the system operates more efficiently, reducing energy usage by up to 40% compared to conventional systems.

Another important characteristic of the CBWMV air handlers is their compatibility with a range of heating and cooling systems, including heat pumps and gas furnaces. This versatility makes them an ideal choice for residential and commercial applications alike. The unit’s compact design allows for flexible installation options, accommodating various spaces without compromising performance.

The CBWMV series is also engineered to provide superior air quality. With advanced filtration options, these air handlers can effectively remove dust, allergens, and pollutants from the air, promoting a healthier indoor environment. Many models come equipped with a MERV 16 filter, enhancing the filtration capability, and ensuring that occupants breathe cleaner air.

Durability is another hallmark of the CBWMV line. Constructed with high-quality materials, these air handlers can withstand rigorous use and environmental conditions. The units are designed to require minimal maintenance, with features that facilitate easy access for filter changes and routine servicing.

Additionally, the CBWMV series integrates seamlessly with Lennox’s smart technology solutions, allowing users to monitor and control their HVAC systems remotely. The compatibility with home automation systems ensures that users can optimize comfort settings and efficiency with ease.

In conclusion, Lennox International Inc's CBWMV air handlers offer a remarkable blend of efficiency, comfort, and innovative technology. With features that prioritize energy savings, air quality, versatility, and durability, they represent a forward-thinking choice for modern HVAC needs. Whether for residential or commercial use, these air handlers stand as a testament to Lennox's commitment to excellence in indoor climate management.
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