York R-410A manual Airflow Performance

Page 32

528194-YTG-F-1210

Drive Selection

1.Determine side or bottom supply duct Application.

2.Determine desired airflow.

3.Calculate or measure the amount of external static pressure.

4.Using the operating point determined from steps 1, 2 & 3, locate this point on the appropriate supply air blower performance table. (Linear interpolation may be necessary.)

5.Noting the RPM and BHP from step 4, locate the appropriate motor and, or drive on the RPM selection table.

6.Review the BHP compared to the motor options available. Select the appropriate motor and, or drive.

7.Review the RPM range for the motor options available. Select the appropriate drive if multiple drives are available for the chosen motor.

8.Determine turns open to obtain the desired operation point.

Example

1.2600 CFM

2.1.6 iwg

3.Using the supply air blower performance table below, the following data point was located: 1268 RPM & 1.95 BHP.

4.Using the RPM selection table below, Size X and Model Y is found.

5.1.95 BHP exceeds the maximum continuous BHP rating of the 1.5 HP motor. The 2 HP motor is required.

6.1268 RPM is within the range of the 2 HP drives.

7.Using the 2 HP motor and drive, .5 turns open will achieve 1268 RPM.

Airflow Performance

Example Supply Air Blower Performance

Air Flow

 

 

 

 

 

 

Available External Static Pressure - IWG

 

 

 

 

 

 

 

0.2

0.4

0.6

0.8

1.0

1.2

 

1.4

 

1.6

 

1.8

 

2.0

 

(CFM)

 

 

 

 

 

RPM

BHP

RPM

BHP

RPM

BHP

RPM

BHP

RPM

BHP

RPM BHP

RPM BHP

RPM BHP

RPM BHP

RPM BHP

 

 

 

 

1.5 HP & Field

Supplied Drive

 

 

 

Standard 1.5 HP & Drive

 

 

Alternate 2 HP & Drive

 

2200

804

0.50

866

0.71

925

0.90

982

1.06

1038

1.21

1092

1.35

1147

1.48

1203

1.61

1259

1.73

1317

1.87

2400

835

0.66

897

0.87

956

1.06

1013

1.22

1069

1.37

1124

1.51

1178

1.64

1234

1.77

1290

1.90

1348

2.03

2600

869

0.84

931

1.05

990

1.24

1047

1.40

1103

1.55

1158

1.69

1212

1.82

1268

1.95

1324

2.07

1382

2.21

2800

906

1.03

968

1.25

1027

1.43

1084

1.60

1139

1.75

1194

1.89

1249

2.02

1304

2.14

1361

2.27

-

-

Table X: RPM Selection

Size

Model

HP

Max

Motor

Blower

6 Turns

5 Turns

4 Turns

3 Turns

2 Turns

1 Turn

Fully

(Tons)

BHP

Sheave

Sheave

Open

Open

Open

Open

Open

Open

Closed

 

 

X

Y

1.5

1.73

1VM50

AK74

N/A

897

945

991

1035

1079

1126

2

2.30

1VM50

AK64

N/A

1039

1094

1150

1207

1256

1308

 

 

32

Johnson Controls Unitary Products

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Contents Technical Guide R-410A ZF Series DescriptionTable of Contents Component LocationNomenclature Ton York Model Number NomenclatureFeatures and Benefits Standard FeaturesFactory Installed Options YTG-F-1210 Field Installed Accessories Control OptionsYTG-F-1210 Accessories Field Installed Acessories Non-ElectricalField Installed Acessories Electric Heat Description Where UsedGuide Specifications Field Installed Acessories Fresh AirField Installed Acessories Controls Field Installed Acessories ElectricalUnit Cabinet GAS Heating Section if Equipped Other PRE-ENGINEERED Accessories Available Physical Data ZF078-150 Physical DataZF078 ZF090 ZF102 ZF120 ZF150 Condenser FAN DataBelt Drive Evap FAN Data FiltersZF078-150 Unit Limitations Size Unit LimitationsUnit Voltage Applied Voltage MinZF078 6.5 Ton Capacity PerformanceZF078-150 Cooling Capacities 115F ZF090 7.5 Ton ZF090 7.5 Ton ZF102 8.5 Ton ZF102 8.5 Ton ZF120 10 Ton ZF120 10 Ton ZF150 12.5 Ton 115F 125F Airflow Performance ZF078-150 Side Duct ApplicationZF078 6.5 Ton Side Duct ZF090 7.5 Ton Side DuctAvailable External Static Pressure IWG1 ZF120 10 Ton Side DuctZF150 12.5 Ton Side Duct ZF078-150 Bottom Duct Application ZF078 6.5 Ton Bottom DuctZF090 7.5 Ton Bottom Duct ZF102 8.5 Ton Bottom DuctZF120 10 Ton Bottom Duct ZF150 12.5 Ton Bottom DuctCFM RPM SelectionAdditional Static Resistance Airflow Performance Altitude/Temperature Correction Factors Air Temperature ºFFactor CorrectionIndoor Blower Specifications Power Exhaust SpecificationsGas Heat Minimum Supply Air Electric Heat Minimum Supply AirIndoor Sound Power Levels Outdoor Sound Power Levels ZF078-150Sound Performance Electric Heat MultipliersZF078-150 Standard Motor Without Powered Convenience Outlet Electrical DataZF078-150 Standard Motor Without Powered Convenience Outlet ZF078-150 Hi Static Motor Without Powered Convenience Outlet ZF078-150 Hi Static Motor Without Powered Convenience Outlet ZF078-150 Standard Motor With Powered Convenience Outlet ZF078-150 Standard Motor With Powered Convenience Outlet ZF078-150 Hi Static Motor With Powered Convenience Outlet ZF078-150 Hi Static Motor With Powered Convenience Outlet Typical Wiring Diagrams ZF078-150 Typical Wiring DiagramsYTG-F-1210 YTG-F-1210 YTG-F-1210 YTG-F-1210 YTG-F-1210 Typical ZF078-150 Factory Installed VFD Option YTG-F-1210 YTG-F-1210 YTG-F-1210 YTG-F-1210 YTG-F-1210 Typical ZF078-150 VFD Ready Unit Option Unit 4 Point Load Weight Unit 6 Point Load Weight Weights and DimensionsZF078-150 Unit Weights ZF078-150 Unit Dimensions ZF078-150 Unit Accessory WeightsZF078 Shipping OperatingZF150 ZF078-150 Unit Physical DimensionsDimension ZF078-150 Unit Clearances Detail BDetail a TOP View ZF078-150 Unit Bottom Duct OpeninFront ZF078-150 Unit Left Duct Opening ZF Side Duct DimensionsZF150 Unit Side Duct Openings ZF078-150 Transition Roof Curb ZF078-150 Unit Accessory DimensionsZF078-150 Roof Curb ZF078-150 Economizer Assembly Factory Installed Downflow Economizer Field Installed Downflow Economizer W/Power ExhaustEconomizer Options Economizer UsageField Installed Horizontal Economizer W/Power Exhaust Slab Economizer Downflow W/Power ExhaustSlab Economizer End Return W/Power Exhaust Johnson Controls Unitary Products York Drive Norman, OK
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R-410A specifications

York R-410A is a widely recognized and highly efficient refrigerant used in modern air conditioning systems. Developed as an environmentally friendly alternative to R-22, R-410A has gained popularity in the HVAC industry due to its numerous advantageous features and characteristics.

One of the main features of York R-410A is its ability to provide superior cooling performance. This refrigerant operates efficiently at both high and low temperatures, allowing systems using it to maintain optimal indoor climates even during extreme weather conditions. Its high energy efficiency ratio (EER) and seasonal energy efficiency ratio (SEER) ratings make it a preferred choice for energy-conscious consumers, resulting in lower energy bills and a reduced carbon footprint.

Technologically, York R-410A systems feature advanced compressor designs that enhance their overall reliability and performance. These compressors are often equipped with variable-speed technology, enabling them to adjust their output to match the cooling demands of the space. This not only improves comfort levels but also leads to efficient energy consumption, reducing wear and tear on the equipment over time.

Another significant characteristic of York R-410A is its non-ozone-depleting properties. Unlike its predecessor R-22, which is being phased out due to its damaging effects on the ozone layer, R-410A is designed to minimize environmental impact. Its lower global warming potential (GWP) further underscores its role in promoting sustainability within the HVAC sector.

Furthermore, York R-410A systems are engineered with enhanced safety features. The refrigerant is non-toxic and non-flammable, which makes it safer for use in both residential and commercial applications. Additionally, its high thermal stability reduces the risk of breakdown or leakage, contributing to longer system lifespans and lower maintenance costs.

In conclusion, York R-410A stands out as a cutting-edge refrigerant that combines efficiency, safety, and environmental responsibility. With its advanced technologies and remarkable characteristics, it meets the demands of modern air conditioning requirements while paving the way for a sustainable future in HVAC systems. Adopting York R-410A not only benefits individual users through improved comfort and lower energy bills but also plays a vital role in protecting our planet's ozone layer and mitigating climate change.
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