Unitary products group LA300 Manuale di Installazione

NOTES, CAUTIONS AND WARNINGSInstaller should pay particular attention to the words:NOTE, CAUTION, and WARNING. Notesare intended toclarify or make the

035-18496-000-C-110210 UnitaryProductsGroupFIGURE 6 - VERTICAL AIRFLOW ARRANGEMENTSFIGURE 7 - HORIZONTAL AIRFLOW ARRANGEMENTSAIRAIRBLOWER1VERTICAL ARR

035-18496-000-C-1102Unitary Products Group 11LB600 AIR DISCHARGEThe LB600 blower and coil section are shipped separatelyand must be joined in the fiel

035-18496-000-C-110212 UnitaryProductsGroupMOUNTINGThe evaporator blower may be suspended from the joists withisolation type hangers or hooks. Suspens

035-18496-000-C-1102Unitary Products Group 13FIGURE 9 - DETAILS FOR SECURING BOTTOM MOUNTING SUPPORTS3NOTE: The following illustration shows how the

035-18496-000-C-110214 UnitaryProductsGroupThe weights for the LB600 shown in 11 include only the evap-orator coil section, the blower section with a

035-18496-000-C-1102Unitary Products Group 15DUCT CONNECTIONSDuctwork should always be suspended with hangers or sup-ported by legs. It should never b

035-18496-000-C-110216 UnitaryProductsGroupRETURN AIR DUCT ANGLESReturn air duct angles are shipped turned in. They areintended to be unscrewed and tu

035-18496-000-C-1102Unitary Products Group 17Suitable hangers, brackets or clamps should support therefrigerant lines.Braze all copper-to-copper joint

035-18496-000-C-110218 UnitaryProductsGroupPUMP OUTThe pump out function is a standard feature on the 25 to 50ton systems. The pump out circuit is act

035-18496-000-C-1102Unitary Products Group 19Check belt tension. Drive packages are supplied with fiber-glass belts that must be properly tensioned at

035-18496-000-C-11022 UnitaryProductsGroupTABLE OF CONTENTSGENERAL ...4NOTES, CAUTIONS AND WARNINGS . . . . . . . .

035-18496-000-C-110220 UnitaryProductsGroupMAINTENANCEFilters must be cleaned or replaced as often as necessary toassure good airflow and filtering ac

035-18496-000-C-1102Unitary Products Group 21TABLE 10: FAN PEFORMANCE DATA - 25 TONRPMCFM8,000 9,000 10,000 11,000 12,000SP BHP kW SP BHP kW SP BHP kW

035-18496-000-C-110222 UnitaryProductsGroupFIGURE 17 - UNIT DIMENSIONS - LA300, LB360, LB480AIROUTAIROUTAIRINAIRIN5/85/85/8 PANEL5/8 BOTTOMPANEL7/8 KN

035-18496-000-C-1102Unitary Products Group 23FIGURE 20 - LA300 PIPING CONNECTIONSFIGURE 21 - LB360 PIPING CONNECTIONSSUCTIONLIQUIDLIQUID (SYS. #1)LIQU

035-18496-000-C-110224 UnitaryProductsGroupFIGURE 23 - UNIT DIMENSIONSFIGURE 24 - LB600 PIPING CONNECTIONS - END PANEL DETAIL6.7"13.5"6.0&qu

035-18496-000-C-1102Unitary Products Group 25To check the supply air CFM after the initial balanc-ing has been completed:1. Drill two (2) 5/16-inch ho

035-18496-000-C-110226 UnitaryProductsGroupFIGURE 26 - 25-TON PRESSURE DROP VS. CFM ACROSS INDOOR COIL25-tonPressure Drop Across Indoor Coil0.000.100.

035-18496-000-C-1102Unitary Products Group 27FIGURE 28 - 40 TON - PRESSURE DROP VS. CFM ACROSS INDOOR COIL (DOMESTIC)40-tonPressure Drop Across Indoor

035-18496-000-C-110228 UnitaryProductsGroupFIGURE 30 - INDOOR UNIT WIRING DIAGRAM LB360, 480 & 600

035-18496-000-C-1102Unitary Products Group 29FIGURE 31 - INDOOR WIRING DIAGRAM LA300

035-18496-000-C-1102Unitary Products Group 3LIST OF TABLESTbl.# Pg.#1 UNIT APPLICATION DATA . . . . . . . . . . . . . . . . . . . . . 52 PHYSICALDATA

035-18496-000-C-110230 UnitaryProductsGroup

035-18496-000-C-1102Unitary Products Group 31

Subject to change without notice. Printed in U.S.A. 035-18496-000-C-1102Copyright © by Unitary Products Group 2002. All rights reserved. Supersedes: 0

035-18496-000-C-11024 UnitaryProductsGroupGENERALThe LA and LB evaporator units are designed for use with theHA/HB Series condensing units.Units are d

035-18496-000-C-1102Unitary Products Group 5NOTE: LB600 Indoor Unit matches with both HB480and HB600 Outdoor Condensing Units formaximum efficiency.IN

035-18496-000-C-11026 UnitaryProductsGroupTABLE 2: PHYSICAL DATADESCRIPTIONMODELLA300 LB360 LB480 LB600EVAPORATORCOILRows Deep X Rows High 4 x 40 4 x

035-18496-000-C-1102Unitary Products Group 7BLOWER MOTOR MOUNTING LOCATIONSUnits are shipped from the factory less motor and drives. Theblower motor a

035-18496-000-C-11028 UnitaryProductsGroupMOTOR MOUNT ARRANGEMENTSThe motor mounting arrangement can be changed to allowmotor access based on the airf

035-18496-000-C-1102Unitary Products Group 9LB600 MOTOR ARRANGEMENTSThe LB600 unit is shipped with the motor mount in the stan-dard location as shown