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TECHNICAL GUIDE
SPLIT-SYSTEM AIR-COOLED
EVAPORATOR BLOWER
25, 30, 40 & 50 TON
LA300, LB360, 480 & 600
This product was manufactured in
a plant whose quality system is
certified/registered as being
in conformity with ISO9001.
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
®
1
PROVEN PERFORMANCE
GENERAL
The LA/LB line is a flexible performer. LA300, LB360 & 480
can be positioned in up to 12 different positions and sus-
pended in various positions. The LB600 can be positioned in
up to 7 different arrangements and suspended also. The LA/
LB line will give you the power to condition large amounts of
building space and the ability to conform to almost any situa-
tion.
FEATURING
•
EASE OF SERVICE
•
PUMP-OUT ON START-UP
•
BASE SECTIONS (25, 30 & 40 Ton only)
•
SUSPENSION PACKAGES
•
HOT WATER COILS
•
STEAM COILS (LA300 & LB360 only)
•
WIDE RANGE OF BLOWER MOTORS
•
A VARIETY OF DRIVE PACKAGES
•
CONTROL BOX WITH LOW VOLTAGE TRANS-
FORMER AND MOTOR STARTER (motor, motor drive
kit and motor overloads sold separately).
036-21335-002-A-1102
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Table of Contents
Related Manuals for York 480
Summary of Contents for York 480
- Page 1 ® PROVEN PERFORMANCE GENERAL The LA/LB line is a flexible performer. LA300, LB360 & 480 can be positioned in up to 12 different positions and sus- pended in various positions. The LB600 can be positioned in up to 7 different arrangements and suspended also. The LA/...
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Page 2: Table Of Contents
TABLE OF CONTENTS DESCRIPTION ......4 MODULAR DESIGN ......4 FACTORY-MOUNTED COMPONENTS . -
Page 3: Product Nomenclature
036-21335-002-A-1102 YORK SPLIT INDOOR PRODUCT NOMENCLATURE Model Number Model # Description Product Category Product Identifier Nominal Cooling Capacity Heat Type Nominal Heating Capacity Airflow Options Voltage Factory Options Special Options Product Generation FIGURE 1: PRODUCT NOMENCLATURE NOTE: LB600 matches with both HB480 and HB600 Outdoor Condensing Units for maximum effi- ciency. -
Page 4: Description
DESCRIPTION Evaporator blower units are designed with two distinct mod- ules to provide maximum application flexibility. The 25, 30 and 40 ton units are shipped as single packages with the blower module mounted on top of the coil module, The blower module can be repositioned in the field to meet almost any installation requirement. -
Page 5: Static Resistances For Unit Accessories . 5 2 Unit Mounting Dimensions
036-21335-002-A-1102 STEAM COILS (LA300 & LB360 only): A steam coil is avail- able on the 25 & 30 Ton for installation between the blower and coil modules of both horizontal and vertical units. Since the casing matches the dimensions and the finish of the basic unit, it becomes an integral part of the unit after installation. -
Page 6: Supports
DETAILS FOR SECURING BOTTOM MOUNTING SUPPORTS 1-1/2 HOR IZONTAL LE U360 O R 480 UNIT S US P E NDE D F R OM A B OVE The s ame channels can be used in either position. W hen used to support at vertical unit, these channels s hould be cut to match the bottom dimension of the e vaporator coil s ection. -
Page 7: Corner Weights
036-21335-002-A-1102 TABLE 3: CORNER WEIGHTS Unit Weight UNIT- MODEL Shipping LA300 1180 LB360 1180 LB480 1510 LB600 1572 TABLE 4: ACCESSORY OPERATING WEIGHT DISTRIBUTION (LBS) ACCESSORY BASE HOT WATER COIL STEAM COIL 1 ROW These weights should be added to each point load in table 3. This accessory can only be applied on units installed in the vertical position. -
Page 8: Unit Drive Data
TABLE 6: UNIT DRIVE DATA DRIVE KIT BLOWER UNIT MODEL MODEL NUMBER RANGE 1LD0440 600 - 750 LA300 1LD0407 700 - 850 1LD0442 780 - 940 1LD0415 636 - 795 LB360 1LD0407 668 - 827 1LD0408 827 - 986 LB480 1LD0409 607 - 776 1LD0410... -
Page 9: Hot Water Coil Capacities
036-21335-002-A-1102 TABLE 8: HOT WATER COIL CAPACITIES UNIT HOT WATER MODEL COIL MODEL LA300 10,000 12,000 1HW0406 10,000 LB360 12,000 14,000 12,800 LB480 16,000 19,200 1HW0407 16,000 LB600 20,000 24,000 These capacities do not include any blower motor heat. NOTE: Temperature Water Drop (ºF) = (2 X MBH) / GPM. TABLE 9: HOT WATER COIL CAPACITY CORRECTION AND PRESSURE DROP VS GPM HOT WATER COIL MODEL 1HW0406... -
Page 10: Steam Coil Capacities (La300 & Lb360 Only) 10 11 Correction Factors For High Steam
TABLE 10: STEAM COIL CAPACITIES UNIT STEAM COIL MODEL MODEL LA300 1NF0454 LB360 These capacities do not include any blower motor heat. Multiply these capacities by the factors in Table 11 to correct for higher steam pressure. TABLE 11: CORRECTION FACTORS FOR HIGH STEAM STEAM PRESSURE (PSIG) CAPACITY CORRECTION FACTOR NOTE: Steam Rate = (lbs/Hr.) = 1.025 x MBH... -
Page 11: Unit Dimensions - La300, Lb360 & Lb480
036-21335-002-A-1102 EVAPORATOR COIL SECTION FIGURE 5: UNIT DIMENSIONS - LA300, LB360 & LB480 TABLE 12: UNIT DIMENSIONS - LA300, LB360, LB480 MODEL 100-1/8 95-5/8 33-1/4 LA300 100-1/8 95-5/8 33-1/4 LB360 103-1/8 95-5/8 40-5/8 LB480 FIGURE 6: 25 TON LIQUID LINE SOLENOID WIRING Unitary Products Group 7/8 KNOCKOUTS FOR POWER... -
Page 12: La300 Piping Connections
SUCTION FIGURE 8: LA300 PIPING CONNECTIONS LIQUID (SYS. #1) LIQUID (SYS. #2) SUCTION (SYS. #2) FIGURE 9: LB360 PIPING CONNECTIONS LIQUID FIGURE 10: LB480 PIPING CONNECTIONS TABLE 13: UNIT CONNECTION SIZES Connection Entry Suction Line Sys # 1 Suction Line Sys # 2 Liquid Line Sys # 1 Liquid Line Sys # 2 Power Wiring... -
Page 13: Unit Dimensions - Lb600
036-21335-002-A-1102 FIGURE 11: UNIT DIMENSIONS - LB600 FIGURE 12: LB600 PIPING CONNECTIONS - END PANEL DETAIL Unitary Products Group 4.7" 13.5" Liquid Line Sys. #1 4.0" 10.1" Liquid 3.8" Line Sys. #2 24.0" Suction Line Sys. #2 3.0" 23.86" 2.1" 6.0"... -
Page 14: Hot Water Coil Dimensions
FIGURE 13: HOT WATER COIL DIMENSIONS TABLE 14: HOT WATER COIL DIMENSIONS COIL UNIT MODEL MODEL LA300 1HW0406 LB360 LB480 1HW0407 LB600 FIGURE 14: STEAM COIL DIMENSIONS TABLE 15: STEAM COIL DIMENSIONS COIL UNIT MODEL MODEL LA300 1NF0454 LB360 Coils are field-installed between the evaporator coil and the blower section of the unit. FIGURE 15: BASE SECTION DIMENSIONS DIMENSIONS 100-1/8... -
Page 15: Base Sections Dimensions
036-21335-002-A-1102 TABLE 17: PHYSICAL DATA DESCRIPTION Rows Deep X Rows High Finned Length, Inches Face Area, Feet EVAPORATOR Tube (copper) OD, Inches COIL Fins (Aluminum) per 1 inch Piping Connections, Inches CENTRIFUGAL Diameter X Width, Inches (Forward Curved) BLOWERS (2 PER UNIT) Size and Quantity Per Model, Inches FILTERS (THROWAWAY) -
Page 16: Physical Data
TABLE 17: PHYSICAL DATA DESCRIPTION Basic Unit (Less Motor & Drive) Shipping Weight (lbs) Operating Weight (lbs) COMPONENT WEIGHT Accessories Blower Motor (1750 RPM) LA300 1180 1125 Hot Water Coil Steam Coil 117 (5hp) 117 (5hp) 120 (7.5hp) 120 (7.5hp) 141 (10hp) 036-21335-002-A-1102 MODEL... -
Page 17: Electrical Data
036-21335-002-A-1102 TABLE 18: ELECTRICAL DATA UNIT MODEL LA300 LB360 LB480 LB600 Unitary Products Group VOLTAGE MIN. CIRCUIT AMPACITY (3PH-60HZ) 16.7 15.2 24.2 16.7 15.2 24.2 30.8 24.2 30.8 30.8 46.2 MAX. FUSE SIZE (Amps) -
Page 18: Fan Performance Data (25 Ton)
TABLE 19: FAN PERFORMANCE DATA - 25 TON 8,000 0.30 0.56 0.43 0.80 0.68 1.12 1.00 1.23 1.11 1.60 1.48 1.73 1.61 1.95 1.82 Unit resistance is based on a dry 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. -
Page 19: Blower Curve La300 & Lb360
036-21335-002-A-1102 30 40 Available external static pres- sure for unit accessories and the duct system. FIGURE 16: BLOWER CURVE LA300 & LB360 Unitary Products Group LA300 & LB360 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 CFM (X 100) Internal unit resistance based on a dry coil plus 2"... -
Page 20: Fan Performance Data (40 Ton)
TABLE 21: FAN PERFORMANCE DATA - 40 TON 12,800 0.20 0.38 0.19 0.65 0.47 0.99 0.84 1.11 0.96 1.65 1.52 1.73 1.60 Unit resistance is based on a dry 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. -
Page 21: Blower Curve Lb480
036-21335-002-A-1102 600 RPM Available external static pres- sure for unit accessories and the duct system. FIGURE 17: BLOWER CURVE LB480 Unitary Products Group LB480 CFM (X 100) Internal unit resistance based on a dry coil plus 2" throwaway filters. 190 200... -
Page 22: Blower Curve Lb600
600 RPM AvaIlable external static pres- sure for unit accessories and the duct system. FIGURE 18: BLOWER CURVE LB600 LB600 CFM (X 100) Internal unit resistance based on a dry coil plus 1" throwaway filters. 036-21335-002-A-1102 Unitary Products Group... -
Page 23: Guide Specifications
036-21335-002-A-1102 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, specifications, power requirements, dimensions, operation and appearance; also equipped with a V-belt drive option that: Will permit the blower RPM to be adjusted to meet the exact CFM requirement of the system. - Page 24 Subject to change without notice. Printed in U.S.A. Copyright © by Unitary Products Group 2002. All rights reserved. Unitary Products Group Supersedes: 036-21335-001-B-0202 5005 York Drive 036-21335-002-1-1102 Norman 73069...