York DH 078, 102 Additional Static Resistance DH120, Additional Static Resistance DH078, 090

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246646-YTG-C-0606

TABLE 31: ADDITIONAL STATIC RESISTANCE DH120 AND 150

CFM

Cooling Only1

Economizer2 3

 

Electric Heat KW2

 

9

18

24

36

54

 

 

 

 

 

 

 

 

 

 

 

1900

0.06

0.02

0.05

0.06

0.07

0.08

0.10

 

 

 

 

 

 

 

 

2100

0.07

0.02

0.06

0.07

0.08

0.09

0.11

2300

0.08

0.02

0.07

0.08

0.09

0.10

0.13

2500

0.09

0.02

0.08

0.09

0.10

0.11

0.14

2700

0.11

0.03

0.09

0.10

0.12

0.13

0.16

2900

0.12

0.03

0.10

0.11

0.13

0.14

0.18

3100

0.14

0.03

0.12

0.13

0.15

0.16

0.20

3300

0.16

0.03

0.13

0.14

0.17

0.18

0.22

3500

0.18

0.04

0.15

0.16

0.19

0.20

0.24

3700

0.20

0.04

0.17

0.18

0.21

0.22

0.26

3900

0.23

0.04

0.19

0.20

0.23

0.24

0.28

4100

0.25

0.04

0.21

0.22

0.25

0.26

0.31

4300

0.28

0.05

0.23

0.24

0.28

0.29

0.34

4500

0.30

0.05

0.25

0.26

0.30

0.31

0.37

4700

0.33

0.05

0.28

0.29

0.33

0.34

0.40

4900

0.36

0.05

0.30

0.31

0.35

0.37

0.43

5100

0.39

0.06

0.33

0.34

0.38

0.40

0.46

5300

0.42

0.06

0.35

0.37

0.41

0.43

0.49

5500

0.45

0.06

0.38

0.40

0.44

0.46

0.53

5700

0.48

0.06

0.41

0.43

0.47

0.49

0.56

5900

0.52

0.07

0.44

0.46

0.50

0.53

0.59

6100

0.56

0.07

0.47

0.49

0.53

0.56

0.62

6300

0.60

0.07

0.50

0.53

0.56

0.59

0.65

1Add these resistance values to the available static resistance in the respective Blower Performance Tables.

2Deduct these resistance values from the available external static pressure shown in the respective Blower Performance Table.

3The pressure drop through the economizer is greater for 100% outdoor air than for 100% return air. If the resistance of the return air duct system is less than 0.25 IWG, the unit will deliver less CFM during full economizer operation.

TABLE 32: ADDITIONAL STATIC RESISTANCE DH078, 090, 102

CFM

Cooling Only1

Economizer2 3

 

Electric Heat KW2

 

9

18

24

36

54

 

 

 

 

 

 

 

 

 

 

 

1900

-0.004

0.07

0.05

0.06

0.07

0.08

0.10

 

 

 

 

 

 

 

 

2100

0.01

0.09

0.06

0.07

0.08

0.09

0.11

2300

0.01

0.11

0.07

0.08

0.09

0.10

0.13

2500

0.02

0.13

0.08

0.09

0.10

0.11

0.14

2700

0.03

0.16

0.09

0.10

0.12

0.13

0.16

2900

0.04

0.18

0.10

0.11

0.13

0.14

0.18

3100

0.05

0.20

0.12

0.13

0.15

0.16

0.20

3300

0.06

0.22

0.13

0.14

0.17

0.18

0.22

3500

0.07

0.24

0.15

0.16

0.19

0.20

0.24

3700

0.08

0.27

0.17

0.18

0.21

0.22

0.26

3900

0.09

0.29

0.19

0.20

0.23

0.24

0.28

4100

0.09

0.31

0.21

0.22

0.25

0.26

0.31

4300

0.10

0.33

0.23

0.24

0.28

0.29

0.34

1Deduct these resistance values to the available static resistance in the respective Blower Performance Tables.

2Deduct these resistance values from the available external static pressure shown in the respective Blower Performance Table.

3The pressure drop through the economizer is greater for 100% outdoor air than for 100% return air. If the resistance of the return air duct system is less than 0.25 IWG, the unit will deliver less CFM during full economizer operation.

Unitary Products Group

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Contents Ashrae 90.1 Compliant Technical GuideTable of Contents Features All units are shipped with 2 throw-away filters installed Factory Installed Options Field Installed Accessories Low Limit / Compressor Lockout Kit Part Number Description Weight AccessoriesYTG-C-0606 Ton York Model Number Nomenclature DH Physical Data 078102 Unit Voltage Limitations DH Capacity RatingsCFM MBH EER IplvCooling Capacity DH078 6-1/2 TON Unit Cooling Capacity DH090 7-1/2 TON Unit Cooling Capacity DH102 8-1/2 TON Unit Cooling Capacity DH120 10 TON Unit Return Dry Bulb F Cooling Capacity DH150 12-1/2 TON Unit4375 5625MCA RLA LRA FLA RLA LRA FLA MCA KW Cap. Multiplier Electric Heat Multipliers240 480DH078 6-1/2 Side Shot Blower Performance CFM DH090 7-1/2 TON Side Shot Blower PerformanceDH102 8-1/2 TON Side Shot Blower Performance DH120 10 TON Side Shot Blower Performance DH150 12-1/2 TON Side Shot Blower Performance DH078 6-1/2 TON Down Shot Blower Performance DH090 7-1/2 TON Down Shot Blower Performance DH102 8-1/2 TON Down Shot Blower Performance DH120 10 TON Down Shot Blower Performance DH150 12-1/2 TON Down Shot Blower Performance Additional Static Resistance DH078, 090 Additional Static Resistance DH120Indoor Blower Specifications Power Exhaust SpecificationsElectric Heat Minimum Supply AIR CFM Unit Weight Unit Model Number DH078 DH090 DH102 DH120Model Shipping Operating Detail C Detail aUnit Clearances DH078 DH090 DH102 DH120Predator Roof Curb Dimensions Bottom Duct Openings from Above Rear Duct DimensionsDownflow Economizer Hood Detail Economizer Usage Factory Installed Downflow Economizer Field Installed Horizontal Economizer W/POWER Exhaust Slab Economizer END Return W/POWER Exhaust Cooling Unit with GAS Heat Wiring 230 Volt Diagram Cooling Unit WITH/WITHOUT Electric Heat Wiring Diagram YTG-C-0606 Predator GeneralDescription Unit Operating Characteristics GAS Heating Section if EquippedElectric Heating Section if Equipped Other PRE-ENGINEERED Accessories Available Additional Factory Installed Options

102, 90, DH 078 specifications

York DH series chillers, specifically models 078, 90, and 102, are recognized in the HVAC industry for their advanced features, efficiency, and reliability. These chillers are designed to provide exceptional cooling performance for commercial and industrial applications, prioritizing energy efficiency and sustainability.

One of the standout features of the York DH series is its dual-compressor system. This design not only enhances reliability but also contributes to energy savings by allowing the unit to operate at varying loads more effectively. This adaptability ensures that the chillers can maintain optimal performance even during fluctuating demand, reducing energy consumption and associated costs.

The DH series chillers employ a microchannel condenser technology that maximizes heat exchange efficiency. This technology reduces the amount of refrigerant required while also minimizing the footprint of the unit, offering significant advantages in space-constrained environments. Additionally, microchannel coils are less susceptible to corrosion, enhancing the longevity and reliability of the chillers.

Another notable feature is the use of variable-speed drives (VSD) in the compressor system. These drives allow for precise control of the compressor speed, enabling the chillers to adjust to the cooling demands dynamically. This flexibility not only enhances the overall efficiency of the system but also contributes to quieter operation, making the chillers suitable for environments where noise levels are a concern.

York's DH series also integrates advanced controls and monitoring capabilities. The intuitive control system allows for easy programming and operation, providing users with real-time data on system performance and diagnostics. This feature aids in maintenance and troubleshooting, reducing downtime and ensuring that the chillers operate at peak efficiency.

Safety is paramount in the design of the York DH chillers. Each model is equipped with multiple safety features, including pressure relief valves and temperature monitoring systems, to protect the unit during operation. This commitment to safety not only safeguards the equipment but also ensures compliance with industry standards.

In conclusion, the York DH 078, 90, and 102 chillers exemplify modern HVAC technology with their dual-compressor systems, microchannel condenser technology, variable-speed drives, and advanced control systems. These features combine to deliver efficient, reliable, and sustainable cooling solutions for a wide variety of applications. The York DH series represents a significant advancement in chiller design and functionality, making it a preferred choice for many professionals in the field.
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