York D3HH 024 Field Installed Accessories, GENERAL DATA 2 TO 5 TONS, Model Dhh, Per ARI Standards

Models: D3HH 180 D3HH 024

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FIELD INSTALLED ACCESSORIES

036-21187-001 REV A (0301)

CORROSION RESISTANT COATINGS - Condenser and/or evaporator coils shall have a 2 to 3 mil coating of Heresite P- 413 protective coating applied in a multiple dip and bake pro- cess.

airflow conditions. The use of the field installed Low Ambient Control is strongly recommended when hot gas bypass is installed.

STAINLESS STEEL DRAIN PAN - Evaporator drain pan shall be fabricated of 304 stainless steel material. The 3/4 in. NPT drain connection fitting is also of 304 stainless steel.

HOT GAS BYPASS - Adjustable hot gas regulator and all necessary piping shall be installed on lead compressor cir- cuit. Bypass capacity shall be minimum 50% of compressor capacity. The bypass valve opens at a preset suction pres- sure to prevent coil freeze-up at light evaporator load, or low

FIELD INSTALLED ACCESSORIES

LOW AMBIENT CONTROL - Head pressure control damper kit will allow unit operation down to 0°F ambient. Damper assembly fits over condenser air intake. The kit includes damper actuator, and low pressure switch bypass timer(s).

TABLE 1: GENERAL DATA 2 TO 5 TONS

MODEL DHH:

024

036

 

048

060

 

 

 

 

 

 

NOMINAL COOLING (TONS)

2

3

 

4

5

 

 

 

 

 

 

 

COOLING PERFORMANCE

 

 

 

 

 

 

 

CALCULATED SEER*

10.5

10.5

 

10.6

10.4

GROSS COOLING CAPACITY (BTUH)

26600

37200

 

50300

62700

 

 

 

 

 

 

DESIGN CFM

800

1200

 

1600

2000

 

 

 

 

 

 

SYSTEM POWER (KW)

2.52

3.85

 

4.88

6.24

 

 

 

 

 

 

COMPRESSOR-TYPE

SCROLL

SCROLL

 

SCROLL

SCROLL

 

 

 

 

 

 

NUMBER USED

1

1

 

1

1

 

 

 

 

 

EVAPORATOR COIL-TYPE

 

"COPPER TUBES, ALUMINUM FINS"

 

 

 

 

 

 

 

FACE AREA (SQ FT)

2.44

3.00

 

4.17

5.14

 

 

 

 

 

 

ROWS/FPI

3/12

3/14

 

3/14

3/14

 

 

 

 

 

 

REFRIGERANT CONTROL

TX VALVE

TX VALVE

 

TX VALVE

TX VALVE

 

 

 

 

 

CONDENSER COIL-TYPE

 

"COPPER TUBES, ALUMINUM FINS"

 

 

 

 

 

 

 

FACE AREA (SQ FT)

3.75

3.75

 

6.67

6.67

 

 

 

 

 

 

ROWS/FPI

4/16

4/16

 

4/14

4/14

 

 

 

 

 

 

EVAPORATOR FAN-TYPE

 

 

 

 

 

 

 

 

 

 

 

NUMBER USED

1

1

 

1

1

 

 

 

 

 

 

DIAMETER x WIDTH (IN)

9x7

10x8

 

12x9

12x9

 

 

 

 

 

 

DRIVE

 

 

 

 

 

 

 

 

 

 

 

MOTOR HP (STANDARD/OVERSIZED)

0.25/0.5

0.5/0.75

 

0.5/0.75

0.75/1

 

 

 

 

 

 

CONDENSER FAN-TYPE

 

 

 

 

 

 

 

 

 

 

 

NUMBER USED

1

1

 

1

1

 

 

 

 

 

 

DIAMETER x WIDTH (IN)

10x10

10x10

 

12x11

12x11

 

 

 

 

 

 

DRIVE

 

 

 

 

 

 

 

 

 

 

 

MOTOR HP (STANDARD)

0.5

1

 

1

2

 

 

 

 

 

 

 

 

 

FILTERS

 

 

 

 

 

 

 

NUMBER USED-SIZE (IN)

1-18x24x2

1-18x25x2

 

2-16x20x2

2-20x20x2

 

 

 

 

 

 

CONDENSATE CONNECTION

 

 

 

 

 

 

 

 

 

 

 

WEIGHT

 

 

 

 

 

 

 

 

 

 

 

OPERATING

490

520

 

765

785

 

 

 

 

 

 

SHIPPING

535

565

 

820

840

 

 

 

 

 

 

*. Per ARI Standards 210

4

Unitary Products Group

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York D3HH 024 Field Installed Accessories, GENERAL DATA 2 TO 5 TONS, Model Dhh, Per ARI Standards, Unitary Products Group

FAQ

What is the recommended coating for the condenser and/or evaporator coils?

The recommended coating is a 2 to 3 mil coating of Heresite P-413 protective coating applied in a multiple dip and bake process.

What is the bypass capacity for the hot gas bypass?

The bypass capacity should be a minimum of 50% of compressor capacity.

What is the purpose of the low ambient control?

The low ambient control allows for unit operation down to 0F ambient, preventing coil freeze-up at light evaporator load or low airflow conditions.