Lennox International Inc AIR HANDLERS, CBWMV Indoor Blower Speeds, Accessory Field Wiring K212

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Indoor Blower Speeds

1.When the thermostat is set to AN ON," the indoor blower will run continuously at approximately 38% of the second−stage cooling speed when there is no cool- ing or heating demand.

2.When the CBWMV is in the heating mode, the indoor blower will run on the heating speed designated by the position of the HEAT pin.

3.When there is a cooling demand, the indoor blower will run on the cooling speed designated by the position of the COOL pin.

Accessory Field Wiring (K212)

Connect field wiring to 3PDT relay K212 (Lennox part 67K66) as shown in figure 10.

Accessory Relay Field Wiring (K212)

1 2 3

4 5 6

7 8 9

AB

ACCESSORY RELAY

24V 125MA 1/4" QUICK CONNECT TERMINALS

RELAY CONTACTS RATING 8 AMPS @ 120V MAX. 24V COIL

Figure 10

Accessory Field Wiring (TB66 & TB67)

Connect wires from accessories (e.g. powered air clean- ers, humidifiers) to terminal blocks TB66 and TB67 (see detail in figure 11).

 

CBWMV Control Box

 

TERMINAL BLOCKS

 

TB2

TB13

 

(HOT)

(NEUTRAL)

 

 

TRANSFORMER

 

 

T1

 

 

CB8

DOOR

 

CIRCUIT

 

BREAKER

INTERLOCK

 

 

 

SWITCH

 

 

BDC3

 

WIRING

VARIABLE

 

 

STRAIN

SPEED

 

 

RELIEF

CONTROL

 

 

BUSHING

 

 

ACCESSORY

 

FIELD

TB66

 

WIRING

TB67

 

TERMINAL

TERMINAL

BLOCKS

 

BLOCK 24V

 

 

K212

TERMINAL

 

RELAY

BLOCK TB1

 

 

Figure 11

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