669997-UAI-D-1111

INSTALLATION

Installation is the same for all operating positions: upflow, hori- zontal right or left (Refer to Figure 1). Installation of the Heater Kit should be done prior to unit installation.

1.If Heat Kit has circuit breakers - remove circuit breaker knockouts from front of air handler unit. For kits with circuit breakers, cut blower access panel insulation along foil perforations behind the circuit breaker plate and remove to open the area for the circuit breakers to protrude through the front access panel and to provide clearance for circuit breakers and single point wiring entry kit. Replacement non-foil faced insulation for the exposed front panel may then need to be added. Add rubber gasket to inside of door.

2.Remove air handler blower access panel.

3.Remove duct cover from back panel of air handler control and wiring compartment.

4.Install electric heat accessory.

a.Position and slide heat kit into opening in air handler.

b.Align holes and fasten the Heat Kit to the air handler unit with 4 screws.

5.Connect the Heat Kit’s 6 pin socket connector to the appro- priate 6 pin connector in the air handler. The end terminals are “D” shaped to ensure polarization of the connector.

6.Connect the air handler power supply to either the circuit breaker or terminal block.

Verify edges of foil faced insulation are not in contact with any exposed electrical connections.

7.Mark an X in the appropriate box on the indoor unit data plate for the particular heater installed.

To prevent damage, carefully pass the accessory heating ele- ment through the rectangular opening in the discharge duct. Element mounting plate must be secured with 4 screws.

NOTICE

All wiring must comply with local and national electrical code requirements. Read and heed all unit caution labels.

FIELD SUPPLY WIRING WILL

BE ATTACHED TO THIS SIDE

UNIT WIRING ATTACHED

TO THIS SIDE

(Do not need to remove)

CIRCUIT BREAKERS

May be 1, 2, or 3)

FIGURE 2: Heat Kit Connection

LINE POWER CONNECTIONS

Power may be brought into the unit through the outlet air end of the unit (top left when unit is vertical) or the left side panel. To minimize air leakage, seal the field wiring entry point.

Field wiring connects to heat kits with circuit breaker or terminal block. A ground lug is also provided on the kits.

ELECTRIC HEATERS & OPERATING CONTROLS

The low voltage transformer and the fan control are standard on all models. The air handlers are shipped pre-wired to operate as cooling only applications.

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Johnson Controls Unitary Products

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Johnson Controls AHE, AHR installation manual Installation, Line Power Connections, Electric Heaters & Operating Controls

AHR, AHE specifications

Johnson Controls is a leader in delivering innovative solutions for the built environment. Among its numerous offerings, the AHR (Air Handling Unit) and AHE (Air Handling Equipment) are exemplary products that showcase the company’s commitment to efficiency, sustainability, and performance.

The AHR units are designed to handle large volumes of air, making them ideal for commercial and industrial applications. They are equipped with advanced technologies that enhance their operational efficiency, such as variable speed drives, high-efficiency fans, and heat recovery systems. These features allow for precise air flow control while minimizing energy consumption.

One of the standout characteristics of the AHR is its modular design. This allows for customizable configurations based on the specific needs of the building. Users can easily tailor the unit to accommodate varying loads and operational requirements, which ultimately leads to better performance and energy savings. The flexibility of the design also simplifies installation and maintenance, ensuring that the system remains efficient over its lifespan.

In addition, the AHE complements the AHR by providing essential components that enhance overall air handling efficiency. This equipment includes filters, coils, dampers, and fans, which are all designed to work seamlessly with the AHR units. The integration of these systems ensures optimal indoor air quality and thermal comfort, critical factors in commercial spaces.

Johnson Controls employs cutting-edge technologies, such as IoT connectivity within its AHR and AHE systems. This technology enables real-time monitoring and remote management of the air handling units. Facility managers can access performance data, diagnose issues, and implement control strategies to enhance efficiency without being physically present.

Another key feature is the emphasis on sustainability. The materials used in the construction of AHR and AHE systems are selected for their low environmental impact. Energy-efficient components reduce the carbon footprint of HVAC systems while contributing to lower operational costs for building owners.

Overall, Johnson Controls AHR and AHE units represent a perfect blend of performance, efficiency, and sustainability. With their advanced technologies and customizable features, these systems stand out as essential components in modern HVAC solutions, designed to meet the demands of today’s energy-conscious environment while ensuring optimal performance.