Heatcraft Refrigeration Products H-ENGM0806, H-ENGM0408 Unit Cooler Recommended Coil Replacement

Page 24

Unit Cooler Recommended Coil Replacement

Left

Large cooler or freezer

Right

Large cooler or freezer

Large cooler or freezer where one wall will not accommodate all required evaporators or where air-throw distance must be considered.

Note: Always avoid placement of unit coolers directly above doors and door openings where low and normal temperature is being maintained.

Allow sufficient space between rear of unit cooler and wall to permit free return of air. Refer to unit manufacturers’ catalog for proper space.

Always trap drain lines individually to prevent vapor migration. Traps on low temperature units must be outside of refrigerated enclosures.

Baffle

Glass

Display

Door

Left

Cooler or freezer with glass display doors

Right

Elevation view of glass display door cooler or freezer. Be sure Air Discharge blows above, not directly at doors. Provide baffle if door extends above blower level.

Image 24

Contents Engineering Manual Table of Contents ForwardTables Wall heat loads Insulated block K factorsOpenings and infiltration Job Survey Refrigeration Load CalculationsSafety Factor Air Change LoadProduct Load Daily figureTemperature above 32ºF 20-22 hr Hourly Heat LoadLoad Calculation Forms 50ºF. rooms and higher with coilExample 35ºF Convenience Store Cooler With Glass Doors Example 35ºF Beef Cooler Inches Type Ceiling Walls Floor Example -20ºF Ice Cream Hardening Freezer Example -10ºF Beef Freezer Gallons of ice cream @ Overrun Appendix Tables Wall Heat LoadsEffective K Factor in Block Thickness of Insulation Allowance for Sun EffectVolume For long storage multiply the above values byStorage Room 40ºF .4ºC 50ºF ºCStorage requirements and properties of perishable products Not based on maintaining nutritional valueMaple Sugar BTU / LB. / 24 Hrs Storage Temperature Degree F Product Heat of Respiration ApproxºF. Other Heat gain due to operation of battery operated lift truck BTU / 24 HRHeat equivalent of electric motors Heat equivalent of OccupancyBanana Ripening Room Banana Rooms Refrigeration RequirementsRapid load selection for back bars Refrigeration requirements for hardening ice creamSummer outside air and ground temperature design conditions DesignDry Bulb Temp State CityTemperature Difference Product Safety/Capacity ControlRefrigeration Equipment Selection Equipment BalanceDerating Factors Type of Operation/Air FlowRecommended Air Changes/Hour Effects of Altitude on Air Cooled EquipmentGeneral Guidelines Unit Cooler Recommended Coil Replacement Left Large cooler or freezer RightLeft Cooler or freezer with glass display doors Right Line Sizing Recommended Line Sizes for R-134a+30˚F 150 200 100Expansion Valve 21/8Recommended Line Sizes for R-22 Equivalent Lengths100 150 200 Receiver to 200 100Recommended Line Sizes for R-404A and R-507 Recommended Line Sizes for R-404A and R-507 30˚F 40˚FEquivalent Feet of Pipe Due to Valve and Fitting Friction Recommended Remote Condenser Line Sizes 134a R507 & R-404A Liquid Line NetRefrigerant Fahrenheit Celsius Temperature Conversion Chart CelsiusFahrenheit Celsius FahrenheitSingle Phase Loads Ohm’s Law for direct current Conversion Factors constantAir Coils = WattsEnglish Conversion Factors & Data English to Metric Conversion FactorsUse of the Psychrometric Chart DefinitionsSR/lb dry air 7000Appendix Charts Atmospheric PressureAt other altitude Courtesy of Ashrae Reproduced by permissionCourtesy of Ashrae Reproduced by permission Glossary of Refrigeration Terms Dimension Quick Selection GuideBtuh Load +35 Room +30 Room FloorTips for Quick Selection Guide Rapid Load Calculator for Large Coolers and Freezers Heatcraft Refrigeration Products LLC

H-ENGM0408, H-ENGM0806 specifications

Heatcraft Refrigeration Products offers a diverse range of commercial refrigeration solutions designed to meet various operational needs. Among their notable offerings are the H-ENGM0806 and H-ENGM0408 models, which stand out for their efficiency and innovative features.

The H-ENGM0806 model boasts a robust construction and high-performance capabilities, making it ideal for large-scale refrigeration requirements. This model is engineered with an advanced compressor that provides powerful cooling while maintaining energy efficiency. The unit operates at low sound levels, making it suitable for environments where noise reduction is essential, such as restaurants and grocery stores. Additionally, the H-ENGM0806 incorporates a reliable fan system designed to ensure optimal air circulation, promoting even cooling throughout the refrigerated space.

Meanwhile, the H-ENGM0408 model is designed for medium-sized applications that require flexibility without compromising on performance. This unit features a compact design, making it an excellent choice for businesses with limited space. Its energy-efficient compressor reduces operational costs, and its user-friendly digital controls allow for easy temperature adjustments and monitoring. The H-ENGM0408 is engineered to operate in various ambient conditions, ensuring reliability and consistent performance regardless of the environment.

Both models feature a state-of-the-art microprocessor control system that allows for precise temperature management. These systems not only optimize performance but also enhance the longevity of the refrigeration units. The H-ENGM0806 and H-ENGM0408 come with a robust evaporator coil design, facilitating rapid cooling and reducing the downtime associated with equipment maintenance.

In terms of durability, both products are constructed with high-quality materials resistant to corrosion and wear, making them suitable for demanding commercial environments. Additionally, they comply with industry standards and regulations, ensuring safety and reliability in operation.

In conclusion, Heatcraft's H-ENGM0806 and H-ENGM0408 models combine efficiency, flexibility, and advanced technology to provide reliable refrigeration solutions. Their thoughtful design and robust features make them ideal choices for businesses looking to maintain optimal temperature control while minimizing energy consumption and operational costs.