Heatcraft Refrigeration Products H-IM-79E manual Initial Power On, Operating Mode Display

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Start-Up Operation

Initial Power On

At the initial application of power to the system, the compressor and the evaporator fans will be in a 4 minute

hold-off cycle and will not start immediately. When there is a call for COOLING, the expansion valve (EEV) opens, then the compressor is started. The compressor will

then run for a minimum of 2 minutes in the “hold-on” cycle. (This means that the compressor will run for a minimum of 2 minutes before shutting off even if the box temperature is met).

The LED alternately displays BOX TEMPERATURE and MODE of operation. On a call for cooling, dLY will show while the expansion valve is opening. After the

compressor starts the LED will alternately display BOX TEMPERATURE and Coo.

On multiple evaporator systems the MASTER evaporator will display BOX TEMPERATURE and Coo. The SLAVE evaporators will display Coo only.

When the room thermostat setting is satisfied, and if the compressor ran for at least 2 minutes, the EEV will close and the compressor will pumpdown and shut off.

The evaporator fans will continue to run. The LED will alternately display oFF and BOX TEMPERATURE.

When the room sensor detects a rise in temperature of approximately 2°F, and the compressor has been off for at least 4 minutes, the EEV will open to its last position then the compressor will start. The valve is then adjusted as necessary to obtain the setpoint superheat setting. During this time, the compressor will run for a minimum 2 minutes “hold-on” cycle.

The four minute “HOLD-OFF” can be bypassed and the system started immediately by pressing the “RESET” button on the Beacon II board.

Operating Mode Display

oFF

- Off

Coo

- Cooling

Pdn

- Pumpdown

dEF

- Defrost

drn

- Draining

dLY

- Delay

tSt

- Test

SEr

- Service

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Contents Installation 2007, Heatcraft Refrigeration Products LLC Beacon II Board Layout Beacon II BoardEvaporator Unit InstallationInstallation Tips Condensing UnitRefrigerant Line Brazing Caution Power SupplyWiring BrazingMultiple Evaporator Configuration Master/slave ConfigurationRefrigerant Charging Box Temp Control SettingsBox Temperature Control Settings Leak TestingSingle System With 1 Evaporator Start-Up OperationSingle System With Multiple Evaporators Smart Controller Operating Mode Display Initial Power OnProgramming & Reviewing Programming And Reviewing Settings / ChangesProgramming And Reviewing Settings / Changes cont’d Monitor Locking The Beacon II Board Periodic Pumpdown Status Indicator LEDLow Ambient Operation PumpdownPumpdown / Defrost Defrost / Alarms Evaporator Fans Shut Off Error IndicatorError Indicator Led Expansion Valve Motor Winding Resistance Checking Operation of Expansion ValveChecking Operation Of Expansion Valve EEV Checking Sensors Power FailuresPower Failures Spare Sensor TerminalsAIR System DefaultsParameters Operational Limits InterLink Replacement Parts ListPart Description Part Number Expansion Valve Capacity DiagnosticsBeacon II Troubleshooting Guide Or other measures Master Slave Out Placing system into Service Mode Terminating Service Mode Wiring Wiring Wiring Wiring Wiring Wiring Evaporators Preventive MaintenanceService Record Record Outdoor Temperature System Voltage

H-IM-79E specifications

Heatcraft Refrigeration Products has long been a leader in eco-friendly and efficient cooling solutions, and the H-IM-79E is a prime example of their commitment to innovation and sustainability. Designed for commercial use, the H-IM-79E is a high-performance refrigeration unit ideal for supermarkets, convenience stores, and restaurants, where reliable temperature control is essential.

One of the standout features of the H-IM-79E is its energy efficiency. This unit employs advanced compressor technology that optimizes power consumption without sacrificing cooling performance. In addition, it is designed to minimize operational costs, making it an attractive option for businesses looking to reduce their energy bills while maintaining high standards of refrigeration.

The H-IM-79E integrates a robust refrigerant management system that uses environmentally friendly refrigerants, aligning with Heatcraft's commitment to reducing the carbon footprint of their products. This not only helps businesses comply with environmental regulations but also promotes a healthier planet for future generations.

Another key characteristic of the H-IM-79E is its superior temperature stability. The unit is equipped with precision temperature control technology that ensures consistent cooling performance, preventing temperature fluctuations that can compromise food quality and safety. This reliability is crucial in commercial settings where maintaining optimal storage conditions is essential.

The design of the H-IM-79E is also noteworthy. It features a compact footprint, allowing it to fit seamlessly into various commercial environments without taking up valuable floor space. Additionally, the unit is built with durable materials, ensuring longevity and minimizing maintenance needs.

User-friendly interfaces make the H-IM-79E easy to operate. It includes advanced monitoring and diagnostics capabilities, allowing business owners to track performance in real-time and address potential issues before they escalate. The incorporation of smart technologies means that operators can remotely monitor and control the system, providing flexibility and peace of mind.

In summary, the Heatcraft Refrigeration Products H-IM-79E stands out for its energy efficiency, eco-friendly refrigerant use, reliable temperature control, compact design, and user-friendly features. This combination of attributes makes it an ideal choice for businesses that prioritize both sustainability and performance in their refrigeration needs.
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