Carrier 39LA, 39LB, 39LC, 39LD, 39LE, 39LF, 39LG, 39LH03-25

METRIC CONVERSION CHART

Contents

Main Installation, Start-Up and Service Instructions CONTENTS SAFETY CONSIDERATIONS 39LA,LB,LC,LD,LF,LG,LH03-25 Indoor Air-Handling Units INTRODUCTION Unit Identification 39L C 10 GK C H E A C G - A Page PREINSTALLATION Rigging (Fig. 5) Suspended Units Service Clearance Condensate Drain Fig. 4 Service Area Requirements DIMENSIONS (ft-in.) DIMENSIONS (mm) Table 1 Physical Data Page INSTALLATION Mixing Box Condensate Drain Table 3 Recommended Actuators DIMENSIONS (ft-in.) Fig. 10 Mixing Box Duct Connections Inlet Guide V ane (IGV) Actuators Install Fan Motor Install Sheaves on Motor and Fan Shafts Install V -Belts Fig. 15 Fan Belt Tension Data Fig. 16 Fan Section Label Deflection = (Belt Span) 64 Deflection = 16 64 Fig. 14 Sheave Alignment NOTICE REPLACEMENT PARTS Water and Steam Coil Piping Recommendations Coil Freeze-Up Protection Page Fig. 19 Dripping Steam Supply to Condensate Return Fig. 20 Multiple Coil High Pressure Piping Fig. 22 Condensate Lift to Overhead Return Fig. 21 Multiple Coil Low Pressure Piping Gravity Return Refrigerant Piping, Direct-Expansion (DX) Coils (Fig. 23) Table 4 Hot Water Coil Circuiting Data Table 5 Chilled Water Coil Circuiting Data Fig. 23 Typical Direct-Expansion Row Split Coil Table 5 Chilled Water Coil Circuiting Data (cont) Table 6 Steam Coil Connection Sizes LEGEND NOTE: Connection sizes are MPT - inches. DDouble Circuit FFull Circuit HHalf Circuit QQuarter Circuit Page Table 7 Direct Expansion Coil Circuiting Data Table 7 Direct Expansion Coil Circuiting Data (cont) Table 8 Distributor Part Numbers Table 9 Side Connector (Hot Gas Bypass) Data DIMENSIONS (in.) Fig. 27 Expansion Valve Piping Fig. 28 Distributor and Hot Gas Bypass Auxiliary Side Connector Page Page Electric Heater s Page Table 10 Electric Heater Data LEGEND Discharge Modification START-UP Check L ist SERVICE General Fan Motor Replacement Coil Cleaning Winter Shutdown (Chilled W ater Coil Only) Field-Installed Coils (39LA,LD Only) Coil Removal Page Page Page Changing Coil Hand Filters Fan Shaft Bearing Removal Table 12 Filter Data *Only 2-in. filters are available on size 03. Fig. 43 Filter Arrangement, 2-in. and 4-in. Flat SIZE 21 SIZE 25 Fan and Shaft Remo v al (Fig. 44) Lubrication

Carrier - page 39

Models: 39LA 39LB 39LC 39LD 39LE 39LF 39LG 39LH03-25