Essick Air 21 DD, 14 DD Typical Electrical Wiring Diagrams, Volt, 1 Phase Electric Supply

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Typical Electrical Wiring Diagrams

120 Volt, 1 Phase Electric Supply

240 Volt, 1 Phase Electric Supply

Disconnect Switch At Cooler

See Notes 1 & 2

L

H

P

N

Gnd

Fuses

See Note 1

Cooler Cabinet

See Note 3

Equipment Pump Motor

Ground

Blower Motor

Control Contacts

See Note 4

L1

120 Volts

N

1 Phase

Gnd

Power Supply

 

Main Disconnect

See Note 1

115 Volt single phase blower motor.

120 Volt pump motor.

Diagram shown for two speed motor. Low speed circuit drawn with dashed lines is not required for single speed.

Disconnect Switch At Cooler

See Notes 1 & 2

 

L

 

H

 

P

 

120V

 

L2

 

Gnd

 

Transformer

 

Cooler Cabinet

 

See Note 3

Equipment

Pump Motor

 

Ground

 

Blower Motor

 

Control Contacts

See Note 1

L1

208 or 240V

L2

1 Phase

Gnd

Power Supply

 

Fuses

See Note 1 Main Disconnect

See Note 1

230 Volt single phase blower motor.

120V pump motor shown. Trans- former may be omitted when a 240V pump is used with a 240V supply

Diagram shown for two speed motor. Low speed circuit drawn with dashed lines is not required for single speed.

208, 240, or 480 Volt, 3 Phase Blower & 120 Volt 1 Phase Pump & Control Electric Supply

Motor Starter With

Overload Protection Sized

To Match Motor Full Load

Current

See Note 1

T3

T2

T1

Gnd

Disconnect Switch At

Cooler

See Notes 1 & 2

Equipment

Ground

 

 

Gnd

208, 240, or 480V

 

 

L1

 

 

L2

3 Phase

Control Contacts

 

L3

Power Supply

 

Main Disconnects

See Note 4 H

 

P

 

See Note 1

 

 

L1

120V

 

 

N

 

N

 

1 Phase

Gnd

 

Gnd

 

Power Supply

Fuses

 

 

 

 

 

See Note 1

 

 

 

Disconnect Switch At Cooler

 

See Note 1&2

Three phase single speed blower motor

Cooler Cabinet

Three pole motor starter with overload

 

See Note 3

 

protection

 

Pump Motor

120V single phase control and pump shown.

 

If 240V control and pump are to be used, then

 

 

Blower Motor

 

both legs of power supply must be fused.

Typical Control Contacts Function and Connection

L- Low Fan P - Pump H - Hi Fan

L1 - Supply Power

Function

Connection

Off

None

Pump Only

L1-P

Hi-Cool

L1-H

* Low-Cool

L1-L & L1-P

Hi-Fan

L1-H

* Low-Fan

L1-L

* Omit for single speed blower motor

208, 240, or 480 Volt, 3 Phase Blower Electric Supply With Transformer For Pump & Control

Motor Starter With

 

Overload Protection

 

Sized To Match Motor

 

Full Load Current

Control Contacts

See Note 1

 

See Note 4

 

H

 

P

 

Disconnect Switch At Cooler

T3

See Notes 1 & 2

T2

 

T1

Cooler Cabinet

Gnd

 

Disconnect Switch At Cooler

See Note 3

 

See Notes 1 & 2

Pump Motor

 

Equipment

Blower Motor

Ground

 

Gnd

208, 240 or 480V

L1

L2

3 Phase

L3

Power Supply

Main Disconnect

See Note 1

120

Fuses

See Note 1

V

 

Transformer

See Note 1

Three phase single speed blower motor.

Three pole motor starter with overload protection.

120V single phase pump powered by a transformer. Transformer may be omitted when 240V control & pump are used with a 240V supply.

WARNING: Electrical hookup should be performed by a qualified electrician. All electrical wiring must conform to national and local standards.

NOTE 1. All switches, motor starters, transformers, fuses, junction boxes, receptacles, receptacle boxes, cover plates, and conductors shall be supplied by the installer and must comply with local and national electrical codes.

NOTE 2. The national electric code requires a disconnect switch located at equipment if the main disconnect at equipment controller is not visible from the equip- ment. If more than one disconnect is used they must be mounted adjacent to one another.

NOTE 3. A receptacle for a NEMA 5-15P plug is required for 120V recirculating pump and a receptacle for a NEMA 6-15P plug for 230V pump. NOTE 4. The control contacts may be part of a switch, thermostat or other control device.

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Contents Models Table Of Contents95 SD Installation Safety RulesOperation Maintenance Pulley And Belt AdjustmentsSpring Start-Up Winter Shut DownTypical Electrical Wiring Diagrams Volt, 1 Phase Electric SupplyLimited Warranty Troubleshooting GuideProblem Possible Cause Remedy 10/12 SD, 14/21 SD 10/12 DD, 14/21 DD Description 10/12 SD 10/12 DD 14/21 SD 14/21 DD75/85DD 75/85SD 95DD 95SD75/85 DD, 95 DD Motor Specifications / Especificaciones Del Motor75/85 SD, 95 SD General Specifications Especificaciones GeneralesOperación Reglas De SeguridadInstalación Mantenimiento Puesta En Marcha En La PrimaveraAjustar La Polea y La Correa Preparar La Unidad Para El InviernoEsquemas Típicas Del Cableado Eléctrico Alimentación Eléctrica De 120 Voltios y 1 FaseLa Localización De Averias Problema Causa Posible RemedioGarantía Limitada

14 DD, 21 DD specifications

Essick Air has been a reliable name in the air treatment industry, providing high-quality evaporative coolers and humidifiers designed for optimal home comfort. Among their impressive range of products, the Essick Air 21 DD and 14 DD models stand out due to their innovative design and advanced features.

The Essick Air 21 DD, renowned for its robust performance, is designed to cover larger areas. It features a 21-gallon water capacity, allowing for extended operation without frequent refills. The unique dual water distribution system ensures even wetting of the evaporative media, enhancing the cooling efficiency. The 21 DD employs tapered media, increasing the surface area for maximum water evaporation, which translates into effective moisture output and temperature reduction.

On the other hand, the Essick Air 14 DD is a more compact model suitable for smaller spaces while still delivering exceptional performance. With a 14-gallon water capacity, this model balances convenience and efficiency, making it ideal for personal or small room use. The 14 DD also utilizes a dual water distribution system, ensuring uniform wetting of the evaporative pads.

Both models feature durable, high-efficiency evaporative media that enhances their cooling abilities. This media is designed to provide effective moisture transfer while maintaining structural integrity over time. The units are equipped with adjustable motor speeds, allowing users to customize airflow to their comfort levels.

In terms of technology, both the 21 DD and 14 DD include built-in automatic shut-off features, which help prevent overflow by stopping the flow of water when the tank is full. This feature not only conserves water but also prolongs the lifespan of the units. Additionally, the user-friendly controls make it easy to operate, even for those who are less tech-savvy.

Portability is another key characteristic of these models. They come mounted with sturdy casters, allowing for easy movement from room to room. The compact design of the 14 DD is particularly advantageous in tight spaces, while the 21 DD is perfect for larger areas without compromising performance.

In summary, the Essick Air 21 DD and 14 DD are excellent choices for anyone looking to enhance indoor air quality and comfort. With their combination of advanced cooling technology, efficient evaporative media, and user-friendly features, these models stand out in the air treatment market, promising refreshingly cool air and improved humidity levels for homes of all sizes.