York D2EG 048, D3EG 036, D2EG 060 Enthalpy Set Point Adjustment, Physical Data

Models: D2EG 048 D2EG 060 D3EG 036

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FIG. 8 - ENTHALPY SET POINT ADJUSTMENT

035-14832-003-A-0204

NOTE: Install filters so that “Air Flow” arrows point toward the unit.

8.Install filter cover over the end of the hood with one screw (center of hood), securing filters into position.

CAUTION: When proceeding with Steps 9 and 10, extreme care must be exercised while turning both the set point and minimum position adjusting screws to prevent twisting them off.

9.The enthalpy set point for the dampers may now be set by selecting the desired set point from graph in Figure 8. For a single enthalpy economizer, carefully turn the set point ad- justing screw to the “A”, “B”, “C” or “D” setting correspond- ing to the lettered curve. For a dual enthalpy economizer, carefully turn the set point adjusting screw fully clockwise past the “D” setting.

10.To check that the damper blades move smoothly without binding, carefully turn the minimum position adjusting screw fully clockwise and then energize and de-energize terminals “R” to “G”. With terminals “R” to “G” energized, turn the minimum position screw counterclockwise until the desired minimum position has been attained.

11. Replace the filter section access panel.

FIG. 8 - ENTHALPY SET POINT ADJUSTMENT

TABLE 4 - PHYSICAL DATA

 

MODELS

 

DEG

 

 

036

048

060

 

 

EVAP.

CENTRIFUGAL BLOWER (Dia. x Wd. in.)

12 x￿￿10

12 ￿x￿10

12 x 10

FAN MOTOR HP (Direct-Drive)

 

 

1

BLOWER

 

 

FAN MOTOR HP (Belt-Drive)

1.5

1.5

1.5

 

EVAP.

ROWS DEEP

3

3

3

FINS PER INCH

13

13

13

COIL

FACE AREA (Sq. Ft.)

3.6

4.3

5.1

 

COND.

PROPELLER DIA. (in.)

22￿￿

22￿￿

22￿￿

FAN MOTOR HP

 

 

 

FAN

4,500

4,200

4,500

NOM. CFM TOTAL

 

COND.

ROWS DEEP

2

2

2

FINS PER INCH

18

18

18

COIL

FACE AREA (Sq. Ft.)

17.1

17.1

17.1

 

AIR

QUANTITY PER UNIT (14" x 20" x 1")

2

2

2

FILTERS

QUANTITY PER UNIT (14" X 25" X 1")

1

1

1

(SEE NOTE)

TOTAL FACE AREA (sq. ft.)

6.3

6.3

6.3

CHARGE

REFRIGERANT 22 (lbs./oz.)

9/12

9/8

9/8

COMPRESSOR

QUANTITY PER UNIT (HERMETIC TYPE)

1 / RECPT

1 /RECPT

1 / SCROLL

NOTE: Filter racks are adapted for 1" or 2" thick filters.

WEIGHTS (LBS)

Basic Unit

 

3 Ton

615

 

4 Ton

655

(Nom. Max.)

 

 

5 Ton

680

 

 

OPTIONS / ACCESSORIES

Economizer

 

50

Motorized Outdoor

 

26

Air Damper

 

 

 

Barometric Relief/Fixed

10

Outdoor Air Intake Damper

 

Roof Mounting Curb

 

92

Belt-Drive Blower

 

5

TABLE 5 - SUPPLY AIR PERFORMANCE - 3, 4, & 5 TON w/Direct-Drive Blower

GAS HEAT VALUES SHOWN @ 230/460/575 VOLTS - Side Duct Connections

MODEL

MOTOR

 

 

 

 

 

Available External Static Pressure - IWG*

 

 

 

 

 

 

 

 

 

0.20

0.30

0.40

0.50

0.60

0.70

 

 

0.80

 

0.90

 

1.00

 

DEG

SPEED

 

 

 

 

 

CFM

Watts

CFM

Watts

CFM

Watts

CFM

Watts

CFM

Watts

CFM

Watts

CFM

Watts

CFM

Watts

CFM

Watts

 

 

 

HI

-

-

-

-

1699

825

1650

785

1570

755

1430

 

725

 

1360

 

700

1280

 

680

1180

 

655

036

MED

1684

800

1631

780

1582

750

1524

720

1410

690

1324

 

650

 

1260

 

630

1185

 

610

1100

 

590

 

LOW

1487

710

1464

690

1421

670

1367

650

1315

620

1246

 

605

 

1185

 

590

1110

 

570

1020

 

545

 

HI

1996

960

1933

936

1868

910

1795

880

1722

845

1635

 

820

 

1544

 

790

1419

 

765

1300

 

740

048

MED

1804

838

1765

810

1714

785

1650

765

1589

735

1508

 

705

 

1407

 

675

1306

 

645

1195

 

625

 

LOW

1681

760

1640

738

1604

715

1541

695

1490

670

1416

 

645

 

1337

 

620

1230

 

595

1120

 

575

 

HI

2400

1155

2338

1125

2274

1095

2167

1045

2096

1010

1990

 

980

 

1887

 

945

1771

 

905

1629

 

855

060

MED

2290

1105

2214

1065

2145

1030

2071

990

1990

950

1911

 

920

 

1828

 

885

1724

 

835

1604

 

798

 

LOW

2150

1020

2100

990

2029

950

1965

910

1905

880

1816

 

838

 

1724

 

800

1644

 

770

1531

 

710

NOTE: FOR 208 VOLTS, MULTIPLY VALUES BY 0.95.

*INCLUDES ALLOWANCES FOR A WET EVAPORATOR COIL, 1" FILTERS, AND THE GAS-FIRED HEAT EXCHANGERS. REFER TO TABLE 8 FOR RESISTANCE VALUES ON APPLICATIONS OTHER THAN GAS/ELECTRIC UNITS WITH SIDE DUCT AIRFLOWS.

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Unitary Products Group

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York D2EG 048, D3EG 036, D2EG 060 installation instructions Enthalpy Set Point Adjustment, Physical Data