Lennox International Inc CBWMV, AIR HANDLERS System Adjustments, Annual Service, Service Filters

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System Adjustments

Timed−ON and Timed−OFF Delays

The 45−second timed−ON delay and the 30−second timed− OFF delay for heating (time that the blower operates after the heat demand has been satisfied) is not adjustable.

Blower Speeds

Select the blower speed by moving the pins on the variable speed control board. See figure 14.

Refer to the speed selection chart on unit wiring diagram.

NOTE − To check for proper CFM, take the reading exter- nal to the unit. The coil must be dry when you take the reading.

Annual Service

WARNING

Electric shock hazard. Can cause inju- ry or death. Before attempting to per- form any service or maintenance, turn the electrical power to unit OFF at dis- connect switch(es). Unit may have multiple power supplies.

At the beginning of each heating season, system should be checked as follows by a qualified service technician:

Electrical

1.Check all wiring for loose connections.

2.Check for correct voltage at CBWMV unit (unit operat- ing).

3.Check to see that blower is operating.

Blower

1. Check and clean blower wheel.

2.Motors are pre−lubricated for extended life; no further lubrication is required.

Freezestat

Verify that the freezestat functions.

Service Filters

Filters must be cleaned or replaced when dirty to assure proper unit operation.

Winterizing CBWMV Water Coil

If unit is installed in an unconditioned space, the piping be- tween the CBWMV unit and the water heating device should be insulated. If power is removed from the unit, wa- ter must be drained from the system to prevent freezing.

Repair Parts List

The following repair parts are available. When ordering parts, include the complete unit model number listed on the unit rating plate of each piece of equipment.

Cabinet Parts

SBlower Access Panel

SCoil Access Panel

Hot Water Coil Parts

SCoil Replacement Kit

Blower Part

SBlower Wheel

SBlower Motor

SBlower Housing

Electrical Parts

SBDC3 Board

STransformer

SCircuit Breaker, 24VAC

S3PDT Relay

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CBWMV SERIES

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Contents Introduction Table of ContentsShipping & Packing List TOP View Cbwmv Unit Dimensions − inches mmGeneral Cbwmv Unit Optional AccessoriesCbwmv Unit Parts Arrangement Cbwmv Unit Parts DescriptionCbwmv Unit Service Clearances Installation − Setting EquipmentRequirements ApplicationReturn Air Plenum Duct SystemCbwmv Multi−Positional Unit Return Air Opening Guidelines Removing the Bottom Panel Leveling Bolt InstallationHorizontal Applications Unit Suspended in Attic or CrawlspaceElectrical Filter Assembly & FiltersPlumbing Removeable Jumpers Electrostatic Discharge ESD Precautions And ProceduresField Wiring Application Jumper Settings See figure Accessory Relay Field Wiring K212 Accessory Field Wiring K212Accessory Field Wiring TB66 & TB67 Indoor Blower SpeedsTypical Cbwmv Wiring BDC3 Variable Blower Control Board Blower Speed AdjustmentsFreezestat Operation Factory Blower Speed Tap Settings Jumper SettingsCBWMV−36B−070 Blower Performance CBWMV−24B−040 Blower PerformanceCBWMV−60C−100 Blower Performance CBWMV−36C−090 Blower PerformanceAir Bleed Valve Location Initial Air PurgingCBWMV−60C−120 Blower Performance 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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