Heatcraft Refrigeration Products H-ENGM0408, H-ENGM0806 manual Inches Type Ceiling Walls Floor

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Refrigeration Load Estimate Form

(for rooms above 32ºF) Bulletin Above32-05

Estimate for:

Estimate by:

Date:

Basis for Estimate

 

 

 

 

Room Dimensions: Width

 

ft. x Length

ft. x Height

ft.

Volume: (L)

x (W)

x (H)

=

cu. ft.

Ambient Temp

ºF. (Corrected for sun load) — Room Temp

ºF. =

Note: Tables can be found in Engineering Manual, H-ENG-2

ºF. T.D.

 

Insulation

Inches

Type

Ceiling

Walls

Floor

Product Load

 

 

 

(a)

lbs./day of

to be reduced from entering

temp. of

ºF. to

ºF. Temp. Drop

ºF.

(b)

lbs./day of

to be reduced from entering

temp. of

ºF. to

ºF. Temp. Drop

ºF.

Miscellaneous

 

 

 

 

 

 

 

 

 

Motors (including all blower motors)

 

HP

Ground Temp.

(Table 21)

Lights (assume 1 watt/sq.ft.)

 

Watts

 

 

No. of people

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1. Transmission Loads

 

 

 

 

 

 

 

 

 

Ceiling: (L)

 

x (W)

x Heat Load

(Table 1)

=

North Wall: (L)

 

x

(H)

 

 

x Heat Load

(Table 1)

=

South Wall: (L)

 

x

 

 

 

x Heat Load

(Table 1)

=

 

(H)

East Wall:

 

 

 

x

 

 

 

x Heat Load

(Table 1)

=

(W)

 

(H)

 

 

West Wall:

 

 

 

 

 

x

 

 

 

x Heat Load

(Table 1)

=

 

 

 

(H)

 

 

 

(W)

 

 

 

Floor: (L)

 

x (W)

x Heat Load

(Table 1)

=

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2. Air Change Load

 

 

 

 

 

 

 

 

 

Volume:

 

cu. ft. x

Factor (Table 4) x

Factor (Table 6)

=

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3. Additional Loads

 

 

 

 

 

 

 

 

 

Electrical Motors:

 

 

HP x 75000 BTU/HP/24 hr.

 

=

Electrical Lights:

 

Watts x 82

 

 

=

People Load:

 

People x

BTU/24 hrs. (Table 12)

 

=

Glass Door Load:

 

 

Doors x 19200 BTU/Door/24 hr.

 

=

 

 

 

 

 

 

 

 

 

 

 

4. Product Load: Sensible

(Product Load Figured @ 24 hr. Pulldown*)

 

 

(a)

lbs./day x

Spec. Heat (Table 7) x

ºF. Temp Drop

=

(b)

lbs./day x

Spec. Heat (Table 7) x

ºF. Temp Drop

=

*For product pulldown time other than 24 hrs. figure 24 hr. load x (24/Pulldown Time)

 

 

 

 

 

 

 

 

 

 

 

 

 

5. Product Load: Respiration*

 

 

 

 

(a)

 

lbs. stored x

 

BTU/lbs./24 hrs. (Table 8)

=

(b)

 

lbs. stored x

 

BTU/lbs./24 hrs. (Table 8)

=

*For consideration of previously loaded product, a multiplier of (5) is normally applied to the daily

product load (Line #4)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Total Refrigeration Load (1+2+3+4+5) BTU/24 hrs.

 

 

 

Add 10% Safety Factor

 

 

 

 

Total with Safety/Factor BTU/24 hrs.

 

 

 

 

 

 

 

 

 

 

 

 

 

Divide by No. of Operating Hrs. (16) to obtain BTUH Cooling Requirement

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Equipment Selection

 

 

Condensing Unit

 

Unit Cooler

System Capacity

Qty.

 

Model No.

Qty.

Model No.

 

BTU/hr.

2175 West Park Place Blvd. • Stone Mountain, GA 30087 • 770.465.5600 • Fax: 770.465.5990 • www.heatcraftrpd.com

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Contents Engineering Manual Forward Table of ContentsTables Wall heat loads Insulated block K factorsOpenings and infiltration Refrigeration Load Calculations Job SurveyAir Change Load Safety FactorProduct Load Daily figureHourly Heat Load Temperature above 32ºF 20-22 hrLoad 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 Wall Heat Loads Appendix TablesEffective K Factor in Block Thickness of Insulation Allowance for Sun EffectFor long storage multiply the above values by VolumeStorage Room 40ºF .4ºC 50ºF ºCNot based on maintaining nutritional value Storage requirements and properties of perishable productsMaple Sugar BTU / LB. / 24 Hrs Storage Temperature Degree F Product Heat of Respiration ApproxºF. Other BTU / 24 HR Heat gain due to operation of battery operated lift truckHeat equivalent of electric motors Heat equivalent of OccupancyBanana Rooms Refrigeration Requirements Banana Ripening RoomRapid load selection for back bars Refrigeration requirements for hardening ice creamDesign Summer outside air and ground temperature design conditionsDry Bulb Temp State CityProduct Safety/Capacity Control Temperature DifferenceRefrigeration Equipment Selection Equipment BalanceType of Operation/Air Flow Derating FactorsRecommended 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 Recommended Line Sizes for R-134a Line Sizing+30˚F 150 200 10021/8 Expansion ValveRecommended Line Sizes for R-22 Equivalent Lengths100 150 200 200 100 Receiver toRecommended Line Sizes for R-404A and R-507 30˚F 40˚F Recommended Line Sizes for R-404A and R-507Equivalent Feet of Pipe Due to Valve and Fitting Friction 134a R507 & R-404A Liquid Line Net Recommended Remote Condenser Line SizesRefrigerant Celsius Fahrenheit Celsius Temperature Conversion ChartFahrenheit Celsius FahrenheitConversion Factors constant Single Phase Loads Ohm’s Law for direct currentAir Coils = WattsEnglish to Metric Conversion Factors English Conversion Factors & DataDefinitions Use of the Psychrometric ChartSR/lb dry air 7000Atmospheric Pressure Appendix ChartsAt other altitude Courtesy of Ashrae Reproduced by permissionCourtesy of Ashrae Reproduced by permission Glossary of Refrigeration Terms Quick Selection Guide DimensionBtuh 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.
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