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

33

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

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.

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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.

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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.