Unitary products group LB360 Manuel d'installation

GENERAL...3NOTES, CAUTIONS AND WARNINGS ...3INSPECTION ...3

035-18902-000-A-040210 UnitaryProductsGroupLB600 AIR DISCHARGEThe LB600 blower and coil section are shipped separatelyand must be joined in the field.

035-18902-000-A-0402Unitary Products Group 11MOUNTINGThe evaporator blower may be suspended from the joists withisolation type hangers or hooks. Suspe

035-18902-000-A-040212 UnitaryProductsGroupFIGURE 10: DETAILS FOR SECURING BOTTOM MOUNTING SUPPORTSFIGURE 11: LA300/LB360/LB480 WEIGHT DISTRIBUTION3NO

035-18902-000-A-0402Unitary Products Group 13The weights for the LB600 shown in Figure 12 include onlythe evaporator coil section, the blower section

035-18902-000-A-040214 UnitaryProductsGroupDUCT CONNECTIONSDuctwork should always be suspended with hangers or sup-ported by legs. It should never be

035-18902-000-A-0402Unitary Products Group 15RETURN AIR DUCT ANGLESReturn air duct angles are shipped turned in. They areintended to be unscrewed and

035-18902-000-A-040216 UnitaryProductsGroupSuitable hangers, brackets or clamps should support therefrigerant lines.Braze all copper-to-copper joints

035-18902-000-A-0402Unitary Products Group 174. Remove the shim.NOTE: The bearing support angle must be horizontal to theunit and below the bearing.5.

035-18902-000-A-040218 UnitaryProductsGroupTABLE 6: ELECTRICAL DATAUNIT MODEL HP FLAVOLTAGE(3PH-50HZ)MIN CIRCUIT AMPACITY MAX. FUSE SIZE (Amps)LA30051

035-18902-000-A-0402Unitary Products Group 19MAINTENANCEFilters must be cleaned or replaced as often as necessary toassure good airflow and filtering

035-18902-000-A-04022 UnitaryProductsGroupTABLE OF CONTENTSGENERAL ...3NOTES,CAUTIONSANDWARNINGS...3RE

035-18902-000-A-040220 UnitaryProductsGroupTABLE 9: FAN PEFORMANCE DATA - 25-TONRPMCFM8,000 9,000 10,000 11,000 12,000SP BHP kW SP BHP kW SP BHP kW SP

035-18902-000-A-0402Unitary Products Group 21TABLE 12: FAN PERFORMANCE DATA - 50 TONRPMCFM16,000 18,000 20,000 22,000 24,000SP BHP kW SP BHP kW SP BHP

035-18902-000-A-040222 UnitaryProductsGroupFIGURE 18: UNIT DIMENSIONS - LA300, LB360, 480TABLE 13: UNIT DIMENSIONS - LA300, LB360, LB480MODELA BCDEFGH

035-18902-000-A-0402Unitary Products Group 23FIGURE 19: LA300 PIPING CONNECTIONSFIGURE 20: LB360 PIPING CONNECTIONSFIGURE 21: LB480 PIPING CONNECTIONS

035-18902-000-A-040224 UnitaryProductsGroupFIGURE 22: UNIT DIMENSIONS

035-18902-000-A-0402Unitary Products Group 25FIGURE 23: LB600 PIPING CONNECTIONS DETAILFIGURE 24: 25-TON PRESSURE DROP VS. CFM ACROSS INDOOR COIL6.7&q

035-18902-000-A-040226 UnitaryProductsGroupFIGURE 25: 30-TON - PRESSURE DROP VS. CFM ACROSS INDOOR COIL30-tonPressure Drop Across Indoor Coil0.000.100

035-18902-000-A-0402Unitary Products Group 27FIGURE 26: 40 TON - PRESSURE DROP VS. CFM ACROSS INDOOR COIL (DOMESTIC)FIGURE 27: 40-TON - PRESSURE DROP

035-18902-000-A-040228 UnitaryProductsGroupFIGURE 28: 50 TON - PRESSURE DROP VS. CFM ACROSS INDOOR COIL50-tonPressure Drop Across Indoor Coil0.000.100

035-18902-000-A-0402Unitary Products Group 29FIGURE 29: INDOOR UNIT WIRING DIAGRAM LB360, 480 & 600

035-18902-000-A-0402Unitary Products Group 3GENERALThe LA and LB evaporator units are designed for use with theHA/HB Series condensing units.Units are

035-18902-000-A-040230 UnitaryProductsGroupFIGURE 30: INDOOR WIRING DIAGRAM LA300

035-18902-000-A-0402Unitary Products Group 31

Subject to change without notice. Printed in U.S.A. 035-18902-000-A-0402Copyright © by Unitary Products Group 2002. All rights reserved. Supersedes: N

035-18902-000-A-04024 UnitaryProductsGroupNOTE: LB600 Indoor Unit matches with both HB480 andHB600 Outdoor Condensing Units for maximum effi-ciency.PR

035-18902-000-A-0402Unitary Products Group 5TABLE 2: PHYSICAL DATADESCRIPTIONMODELLA300 LB360 LB480 LB600EVAPORATORCOILRows Deep X Rows High 4 x 40 4

035-18902-000-A-04026 UnitaryProductsGroupBLOWER MOTOR MOUNTING LOCATIONSUnits are shipped from the factory less motor and drives. Theblower motor and

035-18902-000-A-0402Unitary Products Group 7mended blower motor locations.MOTOR MOUNT ARRANGEMENTSThe motor mounting arrangement can be changed to all

035-18902-000-A-04028 UnitaryProductsGroupdetailed in alternate position one but behind the other blowerscroll. The framework behind each blower scrol

035-18902-000-A-0402Unitary Products Group 9FIGURE 7: VERTICAL AIRFLOW ARRANGEMENTSFIGURE 8: HORIZONTAL AIRFLOW ARRANGEMENTSAIRAIRBLOWER1VERTICAL ARRA