York LEU360, LEU480, LEU600 Technical Manual

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550.13-TG2Y (1001)

TECHNICAL GUIDE SPLIT-SYSTEM AIR-COOLED EVAPORATOR BLOWER 30, 40 & 50 TON LEU360, 480 & 600

PROVEN PERFORMANCE GENERAL

The LEU line is a flexible performer. LEU360 and 480 can be position in up to 12 different positi ons and suspended in various positions. The LEU600 can be position in up to 7 different arran will

ive you the power to condition large amounts of build-

space and the ability to conform to almost any situation.

ements and suspended also. The LEU line

FEATURING

• PART LOAD OPERATION

• EASE OF SERVICE

• NON-RECYCLING PUMPDOWN

• BASE SECTIONS (30 and 40 ton onl

• SUSPENSION PACKAGES

• HOT WATER COILS

• STEAM COILS (LEU360 onl

• WIDE RANGE OF BLOWER MOTORS

• A VARIETY OF DRIVE PACKAGES

)

FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE

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550.13-TG2Y (799)

TABLE OF CONTENTS

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

MODULAR DESIGN . . . . . . . . . . . . . . . . . . . . . . . . . 3

FACTORY-MOUNTED COMPONENTS . . . . . . . . . . 3

ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

GUIDE SPECIFICATIONS . . . . . . . . . . . . . . . . . . . 20

EACH UNIT SHALL BE . . . . . . . . . . . . . . . . . . . . . . . . .20

EACH UNIT ENCLOSURE SHALL HAVE . . . . . . . . . . .20

THE DIMENSIONS OF EACH UNIT . . . . . . . . . . . . . . .20

THE BLOWER MOTOR SHALL . . . . . . . . . . . . . . . . . .20

THE EVAPORATOR COIL SHALL . . . . . . . . . . . . . . . .20

THE BLOWER WHEELS SHALL . . . . . . . . . . . . . . . . .20

LIST OF FIGURES

1 UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . .3

2 COIL CIRCUITING LIQUID LINE . . . . . . . . . . . . . . . . .8

3 UNIT DIMENSIONS - LEU360 & 480 . . . . . . . . . . . . . .9

4 UNIT DIMENSIONS - LEU600 . . . . . . . . . . . . . . . . . .10

5 HOT WATER COIL DIMENSIONS . . . . . . . . . . . . . . .10

6 STEAM COIL DIMENSIONS . . . . . . . . . . . . . . . . . . .11

7 BASE SECTION DIMENSIONS . . . . . . . . . . . . . . . . .11

8 BLOWER CURVE LEU360 . . . . . . . . . . . . . . . . . . . . .15

9 BLOWER CURVE LEU480 . . . . . . . . . . . . . . . . . . . . .17

10 BLOWER CURVE LEU600 . . . . . . . . . . . . . . . . . . . . .19

LIST OF TABLES

1 STATIC RESISTANCES FOR UNIT ACCESSORIES . 4

2 UNIT BLOWER MOTOR DATA . . . . . . . . . . . . . . . . . . 5

3 UNIT DRIVE DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4 LEU600 OVERLOAD ELEMENTS . . . . . . . . . . . . . . . . 6

5 LEU600 STARTERS . . . . . . . . . . . . . . . . . . . . . . . . . . 6

6 HOT WATER COIL HEATING CAPACITIES. . . . . . . . 6

7 CAP CORRECTION & PRESS DROP VS GPM . . . . . 7

8 STEAM COIL CAP (LEU360 ONLY) . . . . . . . . . . . . . . 7

9 CORRECTION FACTOR FOR HIGH STEAM . . . . . . . 7

10 UNIT DIMENSIONS - LEU 360 & 480 . . . . . . . . . . . . . 9

11 HOT WATER COIL DIMENSIONS . . . . . . . . . . . . . . . 10

12 STEAM COIL DIMENSIONS . . . . . . . . . . . . . . . . . . . 11

13 BASE SECTIONS DIMENSIONS . . . . . . . . . . . . . . . . 11

14 PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

15 ELECTRICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . 13

16 L*EU360 SPLY AIR BLOWER PERF . . . . . . . . . . . . . 14

17 L*EU480 SPLY AIR BLOWER PERF . . . . . . . . . . . . . 16

18 L*EU600 SPLY AIR BLOWER PERF . . . . . . . . . . . . . 18

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DESCRIPTION

y Sy

y y

550.13-TG2Y (1001)

Evaporator blower units are designed with two distinct modules to provide max im um ap pli ca tio n fl ex ibi lit ton units are shipped as sin module mounted on top of the coil module, The blower module can be repositioned in the field to meet almost an lation requirement. Blower and coil modules for the 50 ton units are shipped separate ly to simplify handling. These modules can be connected in the field with the same flexibilit the smaller units.

The blower module includes the blower wheels and room for a field-mounted motor and drive. The coil module includes direct expansion coils, 1 in. throwawa noid valves for both capacit mal expansion valves, distributors and a condensate drain pan.

Every evaporator coil is pressurized with air to 325 psig and leak tested under water. After the headers are brazed onto the coil and the coil is installed in the unit, the coil is pressurized with a combination of refri

for pressu re t e sting and addit i onal l e ak t e sti ng. After the

psi coil is evacuated and deh holdin

charge of refrigerant-22 for storage and/or shipping.

Steam coils, hot water coils, base sections, suspension hardware, blower motors and drive packa field-installed accessories to provide additional application flexibilit

These evaporator blowers, combined with condensing units, provide These units are manufactured under ISO 9001 Qualit tem Certification.

ears of quiet, efficient and dependable operation.

le packages with the blower

reduction and pumpdown, ther-

erant-22 and nitrogen to 150

drated, it is pressurized with a

. The 30 and 40

instal-

filters, liquid line sole-

es are available as

Units ma can be arran ments. Each unit is available with a choice of blower motors, drive packages and other accessories to make them suitable for most applications.

be bottom-supported or ceiling-suspended and

ed to meet almost any space or duct r equire-

FACTORY-MOUNTED COMPONENTS

PART LOAD OPERATION These evaporator blowers have multiple coils with pre-piped distributors, expansion valves and solenoid valves. Field modifications are not required for part load operations. Capacit economical operation, but also maintains more even temperature and humidit

EASY SERVICE Serviceable expansion valves are provided on ever provide man required, it is not necessar

PUMPDOWN Evaporator blowers include a solenoid valve for non-rec in the conditioned space is satisfied, the refri pumped into the hi

unit. These superior valves are factory-installed to

levels in the conditioned space.

ears of trouble-free operation. If service is

cling pumpdown. When the cooling requirem ent

h side of the system.

reduction not only provides

to unbraze any joints.

ACCESSORIES

BASE SECTIONS (30 and 40 ton only) Base sections can used to elevate units above the floor. If desired, outdoor air may be introduced through these sections by cutting an access openin nection. These bases have a durable finish to match the

evaporator blower unit. The certain applications.

to accommodate the outdoor air duct con-

may have to be insulated for

erant is

MODULAR DESIGN

These evaporator blo wers can be ar ranged for a variety of air dischar tion.

FIGURE 1 : UNIT INSTALLATION

The above illustration shows three of the common installation arran other possibilities.

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e patterns in either the horizontal or the vertical posi-

ements. Refer to the unit installation instructions for

SUSPENSION PACKAGES These accessories can be used to suspend horizontal units from above without interferin with access to the unit. They can also be used for elevating a floor-mounted unit (either horizontal or vertical) to provide additional hei sate drain connection. All suspension packa with vibration isolators.

HOT WATER COILS Drainable water coils are available for field installation between the blower and the coil modules of both horizontal and vertical units. Since their casin the dimensions and the finish of the basic units, the an inte of their casin that have been mechanicall Both headers are located on the same end of the coil. Coils are leak-tested at 325 psi connections are capped for st ora

STEAM COILS (LEU360 onl the LEU360 for installation between the blower and coil mod-

ht for the installation of a trap at the conden-

es can be used

s match

become

ral part of the unit afte r installation. The co ils s lid e o ut

s for easy installation. Coils have copper tubes

expanded into aluminum fins.

under water and dried befor e the ir

e and shipping.

) A steam coil is available on

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550.13-TG2Y (799)

ules of both horizontal and vertical units. Since the casin matches the dimensions and the finish of the basic unit, it becomes an inte slides out of the casin the casin copper tubes that h ave been m echa nical l

ral part of the unit after installation. The coil

s for easy installation and is pitched in

s to facilitate condensate drainage. The coil has

expanded into aluminum fins. Both headers are located on the same end of the coil. The coil is leak-tested at 325 psi connections are capped for stora

and dried before the

e and shipping.

DRIVE P ACKAGES Diff erent size pul le able for each unit to provide a blower RPM ran almost an

s can be adjusted to provide the proper blower RPM. All

le drive packa ratin

of the bl ower m otor. Two-groove pulleys and two belts are provided on ever above.

STARTERS AND HEATER ELEMENTS (50 ton onl

BLOWER MOTORS Different HP motors are available for each unit to meet almost an motors are UL approved, have permanentl

s and are field-mo unt ed within the ins ulate d cabi net of

bearin

air delivery requirement. All

lubricated ball

blower mot ors that are av ailable for t he 50 ton uni ts do not have inher ent prot ect ion a nd re qui re e xte rnal moto r ov erl oad protection.

the units to minimize the transmission of sound to the surrounding space. All motors have inherent protection except those available for the 50 ton unit. Motors for 50 ton units require a starter and overload elements

TABLE 1: STATIC RESISTANCES FOR UNIT ACCESSORIES

UNIT MODEL ACCESSORY CFM

10,000 11,000 12,000 13,000 14,000

LEU360

LEU480

LEU600

Hot Water Coil 0.08 0.09 0.10 0.12 0.14 Steam Coil 0.17 0.20 0.23 0.27 0.31

12,800 14,400 16,000 17,600 19,200

Hot Water Coil 0.11 0.13 0.15 0.17 0.20

16,000 18,000 20,000 22,000 24,000

Hot Water Coil 0.15 0.18 0.21 0.24 0.28

s and belts are avai l-

e to meet

air delivery requirement. Variable pitch motor pul-

es are rated at least 25% above the nominal HP

drive package rated at 5 HP and

) The

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TABLE 2: UNIT BLOWER MOTOR DATA

UNIT

MODEL

2LR04605023 2LR04605032 230/460 2LR04607523

LEU360

7-1/2

2LR04607532 230/460 2LP04610033

2LR04610032 230/460 2LR04607523

7-1/2

2LR04607532 230/460

LEU480

2LP04610033

2LR04610032 230/460 2LP04610017

LEU600

2LP04610032 230/460 2LP04615017

2LP04615032 230/460

All motors are 1750 RPM and have a 1.15 service factor. All motors have inherent protection and permanently lubricated ball bearings, except the motors for the LEU600. These motors require external protection (starter with overloads and periodic lubrication). All motors have a solid base.

BLOWER MOTOR DATA

MODEL

FRAME

SIZE

184

213

215

213

215

254

OLTAGE

(3PH-60HZ)

208

200/208

208

200/208

200

550.13-TG2Y (1001)

TABLE 3: UNIT DRIVE DATA

UNIT

MODEL

LEU360

LEU480

LEU600

The drive package includes a bushing for the blower pulley.

MODEL#B

LOWER

RPM

1LD0415 636-795 4.0-5.0 1-1/8 11 1-3/16 2 63.3 A62 1LD0407 668-827 4.2-5.2 1-3/8 11.0 1-3/16 2 63.3 A62 1LD0408 827-986 5.2-6.2 1-3/8 11.0 1-3/16 2 59.7 A59 1LD0409 607-776 4.3-5.5 1-3/8 12.4 1-3/16 2 85.1 B84 1LD0410 776-917 5.5-6.5 1-3/8 12.4 1-3/16 2 86.8 B85 1LD0411 692-833 4.9-5.9 1-3/8 12.4 1-3/16 2 78.6 B78

1LD0412 762-931 5.4-6.6 1-5/8 12.4 1LD0415 636-795 4.0-5.0 1-1/8 11

DRIVE DATA BELT DRIVE

MOTOR PULLEY BLOWER PULLEY

PITCH DIA. BORE PITCH DIA. BORE

1-3/16 1-3/16

QTY

PITCH

LENGTH

2 76.8 B75 2 63.3 A62

DESIGNATION

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550.13-TG2Y (799)

TABLE 4: 2LP* MOTOR OVERLOAD ELEMENTS

VOLTAGE MO TOR HP KIT # 200 V

230 V 460 V

200 V 230 V 460 V

OLTS OLTS OLTS

10 HP Motor

15 HP Motor

2MP04701600 2MP04701400 2MP04701300

2MP04701500 2MP04701700 2MP04701200

TABLE 5: 2LP* MOTOR STARTERS

MOTOR HP @ VOLTAGE KIT NUMBER

10HP motor @ 200 volts or 15 HP motor @ 200 or 230 volts

10HP motor @ 230 or 460 volts or 15 HP motor @ 460 volts

2MS04700100

(60 AMP)

2MS04700200

(30 AMP)

DO NOT OPERATE THE SUPPLY AIR BLOWER MOTOR ABOVE ITS NOMINAL HP RATING WHEN A UNIT IS EQUIPPED WITH A HOT WATER COIL ACCESSORY. DO NOT USE STEAM IN HOT WATER Coils.

DO NOT OPERATE THE SUPPLY AIR BLOWER ABOVE ITS NOMINAL HP RATING WHEN A UNIT IS EQUIPPED WITH A STEAM COIL ACCESSORY.

ALTHOUGH THESE COILS ARE SUITABLE OF A MUCH HIGHER PRESSURE, STEAM ABOVE 25 PSIG PROVIDES TOO MUCH HEAT THAT COULD DAMAGE THE BLOWER MOTOR.

TABLE 6: HOT WATER COIL HEATING CAPACITIES1.

HOT WATER

COIL MODEL

1HW0406

1HW0407

These capacities do not include any blower motor heat.

Temperature Water Drop (°F) = (2 x MBH)/GPM

NOTE:

UNIT

MODEL

LEU360 50

LEU480 75

LEU600 75

GPM CFM

8,000 236 304 372 440 508 10,000 265 341 416 492 568 12,000 291 374 457 540 623 14,000 315 405 495 585 675 12,800 348 447 547 646 746 16,000 389 500 611 722 833 19,200 425 547 668 790 911 16,000 389 500 611 722 833 20,000 436 561 686 810 935 24,000 473 610 746 882 1,019

ENTERING WATER TEMPERATURE MINUS ENTRY AIR TEMPERATURE, °F.

70 90 110 130 150

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TABLE 7: CAPACITY CORRECTION AND

PRESSURE DROP VS GPM

HOT WATER

COIL MODEL

1HW0406

1HW0407

For pressure drop in feet (water), multiply these values by 2.31.

GPM

25 0.4 0.79 50 1.0 1.00 75 1.8 1.04

100 3.4 1.07

50 1.0 0.95

75 1.5 1.00 100 2.4 1.03 125 3.5 1.05

PRESSURE

DROP

550.13-TG2Y (1001)

CAPACITY

CORRECTIO

FACTOR

TABLE 8: STEAM COIL CAPACITY1 (LEU360 only), MBH @ 2psig

STEAM COIL

MODEL

1NF0454

These capacities do not include any blower motor heat.

Multiply these capacities by the factors in Table 9 to correct for higher steam pressure.

UNIT

MODEL

LEU360

CFM

8,000 535 483 432 380 10,000 592 535 478 422 12,000 642 580 518 456 14,000 687 621 555 489

DRY BULB TEMPERATURE OF AIR ENTERING COIL, °F

10 30 50 70

TABLE 9: CORRECTION FACTOR FOR HIGH STEAM

Steam Pressure, psig 5 10 15 20 25

Capacity correction factor 1.05 1.12 1.19 1.25 1.30

NOTE: Steam rate = (lbs/Hr.) = 1.025 x MBH

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550.13-TG2Y (799)

FIGURE 2 : COIL CIRCUITING LIQUID LINE

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550.13-TG2Y (1001)

FIGURE 3 : UNIT DIMENSIONS - LEU360 & 480

TABLE 10: UNIT DIMENSIONS - LEU 360 & 480

MODEL A B C D E F G H J K M N P

LEU360 LEU480

100-1/8 95-5/8 33-1/4 36-5/8 73-1/4 2-1/2 18-7/8 16-1/2 15-13/16 21-7/8 22-9/16 1 2-1/8 103-1/8 98- 5/8 40-5/8 44 88 2-1/2 18-7/8 23-7/8 20-11/16 21-7/8 20-11/16 1-1/8 1-5/8

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550.13-TG2Y (799)

FIGURE 4 : UNIT DIMENSIONS - LEU600

FIGURE 5 : HOT WATER COIL DIMENSIONS

TABLE 11: HOT WATER COIL DIMENSIONS

COIL

MODEL

1HW0406

UNIT

MODEL

LEU360 100-1/8 37-7/8 6-3/4 3-7/8 1-3/8 1-3/8

ABCDEF

DIMENSIONS

TABLE 11: HOT WATER COIL DIMENSIONS

COIL

MODEL

1HW0407

UNIT

MODEL

LEU480 LEU600

ABCDEF

103-1/8 45-1/4 6 -1/2 4 1-5/8 1-5/8

DIMENSIONS

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FIGURE 6 : STEAM COIL DIMENSIONS

550.13-TG2Y (1001)

TABLE 12: STEAM COIL DIMENSIONS

COIL

MODEL

1NF0454

UNIT

MODEL

LEU360 100-1/8 37- 7/8 4-3/8 18-3/8 1-1/2 2 2-1/2

Coils are field-installed between the evaporator coil and the blower section of the unit.

ABCDEFG

DIMENSIONS

FIGURE 7 : BASE SECTION DIMENSIONS

TABLE 13: BASE SECTIONS DIMENSIONS

BASE

MODEL

1BS0406 1BS0407

Ventilation air can be brought into the unit through the base section providing the base section is fully insulated in the field.

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UNIT

MODEL

LEU360 100-1/8 37-7/8 LEU480 103-1/8 45-1/4

DIMENSIONS

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550.13-TG2Y (799)

TABLE 14: PHYSICAL DATA

DESCRIPTION

Rows Deep X Rows High 4 x 32 4 x 40 4 x 50 Finned Length, inches 93 96 96

EVAPORATOR

COIL

CENTRIFUGAL

BLOWERS (2 PER UNIT)

FILTERS (THROWAWAY)

OPERATING CHARGE

EFRIGERANT

- 22)

DRAINABLE HOT WATER

COIL ACCESSORY

NON-FREEZE, STEA M

DISTRIBUTING COIL

ACCESSORY

COMPONENT WEIGHT

Face Area, feet Tube (copper) OD, inches 1/2 1/2 1/2 Fins (Aluminum) per 1 inch 12 12 12

Diameter X Width, inches (Forward Curved) 18 x 18 18 x 18 20 x 18

Size and Quantity Per Model, inches

Total Face Area / feet System 1 18 12 14

LBS

System 2 - 12 19 Tube (copper) OD, inches 1/2 1/2 1/2 Rows Deep 2 2 2 Fins (Aluminum) per 1 inch 12 12 8

Face Area, feet Connections (Supply & Return), inches 13/8 OD (copper) 1-5/8 OD (copper) Tube (copper) OD, inches 1 (Outside) 5/8 (in.) Rows Deep 1 Fins (Aluminum) per 1 inch 8

Face Area, feet Connection, (Brass)

Inches (NPTE) Basic Unit (Less Motor & Drive) 690 1170 1500

Shipping Weight (lbs) 990 1170 Operating Weight (lbs) 1115 1310

Accessories

Blower Motor (1750 RPM)

MODEL

LEU360 LEU480 LEU600

26.0 33.4 41.7

16 x 25 x 1 - - 6 20 x 20 x 1 - 12 20 x 22-1/4 x 1 - 3 20 x 25 x 1 10 - 3 25 x 25 x 1 - - 6

34.7 42.6 53.1

21.2 27.2 27.2

N/A

18.2

Inlet 2 Outlet 1-1/2

Hot Water Coil 150 190 190

Steam Coil 160 - -

Supply Air Plenum 125 - -

Return Air Grille 25 - -

120 (5HP) - -

150 (7.5HP) 150 (7.5HP) 150 (7.5HP)

180 (10HP) 180 (10HP) 180 (10HP)

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TABLE 15: ELECTRICAL DATA

MODELS

LEU

360

230/460-3-60

480

230/460-3-60

600

230/460-3-60

Based on an 80% power factor and on a 3% voltage drop.

Dual element, time delay fuses.

For additional motor data, refer to blower motor and drive table.

MOTOR NAMEPLATE DATA MAX. WIRE

POWER SUPPLY

208-3-60

200-3-60

@230V

@460V

@230V

@460V

@230V

@460V

550.13-TG2Y (1001)

MAX. FUSE

SIZE

MPS

)

FLA

LENGTH

(FT.)

5 13.6 135 25 30

7-1/2 21.0 135 35 60

10 25.0 175 40 60

5 13.4 150 25 30

7-1/2 21.0 150 35 60

10 25.0 195 40 60

5 6.7 385 12 30

7-1/2 10.5 245 20 30

10 12.5 320 20 30

7-1/2 21.0 135 35 60

10 25.0 175 40 60

7-1/2 21.0 150 35 60

10 25.0 195 40 60

7-1/2 10.5 245 20 30

10 12.5 320 20 30 10 34.4 190 60 60 15 46.0 215 70 100 10 28.6 170 50 60 15 42.0 180 70 100 10 14.3 285 25 30 15 21.0 300 35 60

MIN. DISC.

SWITCH SIZE

MPS

)

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550.13-TG2Y (799)

TABLE 16: L*EU360 SUPPLY AIR BLOWER PERFORMANCE

CFM

RPM

BHP

10,000 11,000 12,000 13,000 14,000

600

635

700

775

800

875

900

970 1000

0.48 2.8 2.4 0.35 3.3 2.9 0.20 3.9 3.4 0.03 4.5 3.9 ———

0.62 3.1 2.7 0.49 3.7 3.2 0.35 4.3 3.7 0.19 4.9 4.2 0.03 5.5 4.7

0.87 3.8 3.3 0.76 4.4 3.8 0.63 5.0 4.3 0.49 5.6 4.8 0.34 6.3 5.4

1.21 4.7 4.1 1.11 5.3 4.6 0.99 5.9 5.1 0.86 6.5 5.6 0.72 7.2 6.2

1.30 4.9 4.2 1.20 5.5 4.8 1.08 6.2 5.4 0.95 6.9 6.0 0.81 7.6 6.6

1.64 5.9 5.1 1.54 6.5 5.6 1.43 7.1 6.1 1.32 7.8 6.7 1.20 8.6 7.4

1.75 6.2 5.4 1.66 6.8 5.9 1.55 7.4 6.4 1.44 8.1 7.0 1.33 8.9 7.7

2.10 7.2 6.2 2.00 7.8 6.7 1.90 8.5 7.3 1.81 9.2 7.9 1.71 10.0 8.6

2.25 7.6 6.6 2.15 8.2 7.1 2.06 8.8 7.6 1.97 9.5 8.2 1.88 10.4 9.0

Unit resistance is based on a wet evaporator coil and clean filters.

Available static pressure in IWG to overcome the resistance of the duct system and any accessories added to the unit. Refer to the blower motor and drive table and the accessory static resistance table for additional information.

Motors can be selected to operate into the service factor because they are located in the moving air stream, upstream of any heating device. units with steam or hot water coils are the only exception. On these units, the BHP must not exceed the nominal HP rating of the motor.

Min. speed for drive accessory 1LD0415.

Min. speed for drive accessory 1LD0414

Min. speed for drive accessory 1LD0408

Max. speed for drive accessory 1LD0415

Max. speed for drive accessory 1LD0414

Max. speed for drive accessory 1LD0406

BHP

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550.13-TG2Y (1001)

FIGURE 8 : BLOWER CURVE LEU360

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550.13-TG2Y (799)

TABLE 17: L*EU480 SUPPLY AIR BLOWER PERFORMANCE

CFM

RPM

BHP

12,800 14,400 16, 000 17,600 19,200

600

640

700

775

800 900

915

0.31 4.3 3.7 0.13 5.1 4.4 —————————

0.49 4.8 4.1 0.31 5.6 4.8 0.15 6.3 5.4 ——————

0.76 5.5 4.7 0.59 6.4 5.5 0.42 7.2 6.2 0.24 8.1 7.0 0.03 9.2 7.9

4 5

1.10 6.5 5.6 0.96 7.4 6.4 0.80 8.4 7.2 0.63 9.4 8.1 0.42 10.4 9.0

1.22 6.8 5.9 1.08 7.8 6.7 0.93 8.8 7.6 0.76 9.8 8.4 0.55 10.8 9.3

1.76 8.1 7.0 1.64 9.3 8.0 1.50 10.5 9.0 ——————

1.84 8.3 7.2 1.72 9.5 8.2 1.58 10.7 9.2 ——————

Unit resistance is based on a wet evaporator coil and clean filters.

Min. speed for drive accessory 1LD0409.

Min. speed for drive accessory 1LD0410.

Max. speed for drive accessory 1LD0409.

Max. speed for drive accessory 1LD0410.

BHP

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550.13-TG2Y (1001)

FIGURE 9 : BLOWER CURVE LEU480

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TABLE 18: L*EU600 SUPPLY AIR BLOWER PERFORMANCE

CFM

RPM

BHP

16,000 18,000 20, 000 22,000 24,000

600

660

700

760

800

900

930

0.92 6.0 5.2 0.72 7.2 6.2 0.50 8.4 7.2 0.25 9.7 8.4 ———

1.27 7.3 6.3 1.09 8.5 7.3 0.88 9.8 8.5 0.62 11.2 9.7 0.33 12.7 11.0

1.50 8.2 7.1 1.34 9.4 8.1 1.13 10.7 9.2 0.87 12.2 10.5 0.59 13.7 11.8

1.86 9.5 8.2 1.72 10.8 9.3 1.53 12.3 10.6 1.28 13.8 11.9 1.00 15.6 13.5

2.10 10.4 9.0 1.98 11.8 10.2 1.79 13.3 11.5 1.55 14.9 12.9 1.28 16.9 14.6

2.70 12.8 11.0 2.62 14.5 12.5 2.50 16.0 13.8 ——————

2.88 13.5 11.6 2.81 15.3 13.2 —————————

Unit resistance is based on a wet evaporator coil and clean filters.

Motors can be selected to operate into the service factor because they are located in the moving air stream, upstream of any heating device. Units with steam or hot water coils are the only exception. On theses units, the BHP must not exceed the nominal HP rating of the motor.

Min. speed for drive accessory 1LD0411.

Min. speed for drive accessory 1LD0412.

Max. speed for drive accessory 1LD0411

Max. speed for drive accessory 1LD0412.

BHP

18 Unitary Products Group

Page 19

550.13-TG2Y (1001)

FIGURE 10 : BLOWER CURVE LEU600

Unitary Products Group 19

Page 20

yrig

GUIDE SPECIFICATIONS

gaug

EACH UNIT SHALL BE:

• Covered by a 1-year limited parts warranty on the com- plete unit.

• In current production with published literature available to check performance, limitations, specific ations, power requirements, dimensions, operation and appearance, and

• Equipped with a V-belt drive that: a. Is rated at least 25% above the required HP.

b. Will permit the blower RPM to be adjusted to meet

the exact CFM requirement of the s

stem.

EACH UNIT ENCLOSURE SHALL HAVE:

• A steel angle frame to provide the rigid support required for shippin

• Exterior panels of 18 enamel to provide a lon

• Removable panels to provide ea s components for maintenance and service, and,

• A filter rack with 1” filters.

, rigging and years of dependable operation.

e steel, finished with baked

lasting quality appearance

access to the intern al

THE DIMENSIONS OF EACH UNIT SHALL NOT EXCEED THOSE SPECIFIED.

THE BLOWER MOTOR SHALL:

• Be mounted within the insulated cabinet to minimize the transmission of sound to the surroundin

• Have a service factor of 1.15

space, and

THE EVAPORATOR COIL SHA LL:

• Consist of copper tubes arranged in staggered rows, mechanicall

• Be draw-throu

• Include factor

and solenoid valves for both capacit pumpdown.

expanded into aluminum fins,

h, and

-mounted distributors, expansion valves reduction and

THE BLOWER WHEELS SHALL

• Be dynamically balanced to mini mize the l evels of sound and vibration

enerated by the unit

Subject to change without notice. Printed in U.S.A. Cop

Unitary 5005 Norman Products York OK Group Drive 73069