Carrier 39LH03-25 manuals

40 pages2 Mb

Installation, Start-Up and Service Instructions
- CONTENTS
- SAFETY CONSIDERATIONS
- 39LA,LB,LC,LD,LF,LG,LH03-25 Indoor Air-Handling Units
  - INTRODUCTION Unit Identification
  - 239L C 10 GK C H E A C G - A
    - 4PREINSTALLATION
    - Rigging (Fig. 5)
    - Suspended Units
    - Service Clearance
    - Condensate Drain
    - External Vibration Isol ators
      - NOTE: Dimensions in ( ) are in mm.
      - 5Fig. 4 Service Area Requirements
        DIMENSIONS (ft-in.)
        DIMENSIONS (mm)
      - 6Table 1 Physical Data
    - 8INSTALLATION Mixing Box
    - Condensate Drain
      - 9Table 3 Recommended Actuators
        DIMENSIONS (ft-in.)
        Fig. 10 Mixing Box Duct Connections
    - 10Inlet Guide V ane (IGV) Actuators
    - 11Install Fan Motor
    - Install Sheaves on Motor and Fan Shafts
    - 12Install V -Belts
      - Fig. 15 Fan Belt Tension Data
      - Fig. 16 Fan Section Label
      - Deflection = (Belt Span) 64 Deflection = 16 64
      - Fig. 14 Sheave Alignment
  - 13NOTICE
  - REPLACEMENT PARTS
    - 14Water and Steam Coil Piping Recommendations
    - Coil Freeze-Up Protection
      - 16Fig. 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
    - 17Refrigerant 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
      - 18Table 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
      - 20Table 7 Direct Expansion Coil Circuiting Data
      - 21Table 7 Direct Expansion Coil Circuiting Data (cont)
      - 22Table 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
    - 25Electric Heater s
      - Table 10 Electric Heater Data
    - 27 LEGEND
      - 28Discharge Modification
      - 29START-UP Check L ist
      - 30SERVICE General
      - Fan Motor Replacement
      - Coil Cleaning
      - Winter Shutdown (Chilled W ater Coil Only)
      - 31Field-Installed Coils (39LA,LD Only)
      - Coil Removal
      - 35Changing Coil Hand
      - 36Filters
      - Fan Shaft Bearing Removal
        37Table 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
      - 38Fan and Shaft Remo v al (Fig. 44)
      - Lubrication