Carrier AERO 39MN03-110 Series Installation, Start-Up And Service Instructions Manual

Indoor and Weathertight Outdoor
Air Handlers
Installation, Start-Up and
Service Instructions
CONTENTS
Page Page
INTRODUCTION ...............0.000....0000.0..... 2 * INSTALL PIPING
SAFETY CONSIDERATIONS...................... 2 Condensate Drain...........................2--. 81
UNIT AND COMPONENT IDENTIFICATION. .... 2-39 Fan Motor Wiring Recommendations............ 82
PRE-INSTALLATION........ «0.002. 40-43 Motor Nameplate Data........................... 84
Inspection....0. 0000... 40 Fan Motor Starter ........0....0................. 84
Rigging and Handling........................... 40 Disconnect...............0.0.00......00 0002 eee 85
Long-Term Storage...........................05. 40 VED «00 cee eee 85
Service Clearance..............0 02. 40 VED with Bypass............0.00 ee. 85
Drain Positioning................................ 40 VED Configuration .............................. 92
Unit Suspension ...........................0.05. 40 VFD Modes......................0.00..0.00.2002. 92
Internal Vibration Isolation...................... 4] Electric Heaters.............000000.. 00.200. ee. 94
External Vibration Isolation ..................... 4] Energy Recovery Ventilation (ERV) Sections... 100
Roof Curb....0... eee. Al * RECEIVING AND INSPECTION
Pier or Beam Mount............................. 42 * RIGGING AND STACKING
INSTALLATION ................... 2222-22 43-100 * ERV WHEEL MOTOR WIRING
Indoor and Outdoor Unit Shipping Split START-UP... ee. 101-103
(AIL Sizes)... 0.0 eee 43 Checklist................0.000.000.0 0.00.20 eee 101
Duct Connections............................... 51 Energy Recovery Wheel........................ 103
Panel Cutting...............0........00.0..0..04. 51 SERVICE ........................0..00.0005. 103-133
Face and Bypass Dampers...................... 51 General .....0..00.0.00.0.00.. 00000 c cee eee 103
Zone Damper Section........................... 54 Electric Heaters................................ 103
Mixing Box/Filter Mixing Box Damper Linkage . . 54 Fan Motor Replacement........................ 103
Mixing Box Damper Actuators................... 57 Energy Recovery Ventilation................... 104
Vertical Draw-Thru Units ........................ 57 * CLEANING
Stacked Supply Fan, Return Fan * CASSETTE REPLACEMENT
and Exhaust Box Sections .................... 57 « ADJUSTING AIR SEALS
Fan Sled Disassembly........................... 59 * SEGMENT INSTALLATION AND REPLACEMENT
Fan Sled Dimensions............................ 59 * WHEEL DRIVE MOTOR AND PULLEY
Fan Motors and Drives.......................... 60 REPLACEMENT
Motor Power Wiring............................. 60 * SOLID BELT REPLACEMENT
Sheaves..........00...00.. 00000 cee 60 « LINK BELT REPLACEMENT
V-Belts 000 eee 61 * OTHER MAINTENANCE
Outdoor Hoods and Louvers.................... 62 Cleaning Unit Interior/Exterior.................. 107
Coil Connection Housing (Outdoor Unit - Coil Cleaning........................00.00.0005. 108
All Sizes)... 00000 eee 63 Winter Shutdown....................0........... 108
Humidifier Installation........................... 66 Coil Removal................................0.. 109
Assembly of Vertical Manifolds.................. 69 Changing Coil Hand............................ 110
Coil Installation .............0.....00............ 70 Filters 000 eee 11
Water and Steam Coil Piping Magnehelic Gage Maintenance................. 113
Recommendations............................ 71 Fan Shaft Bearing Removal.................... 115
Coil Freeze-Up Protection....................... 74 Fan and Shaft Removal......................... 131
Refrigerant Piping, Direct-Expansion Coils. ..... 75 Motor Location................................. 131
Distributor Nozzle Change-Out.................. 76 Lubrication.....0..........000..000...0...0002005. 131
Filter Drier ......0.0.000. 0.00. 76 Motor and Drive Package Data................. 132
Valve Location ........................0....0.04. 76 Variable Frequency Drive....................... 132
Solder Techniques ........ fee eee 76 TROUBLESHOOTING ...................... 133-139
Bulb Location and Installation .................. 77 Steam Coil Performance Problems............. 133
External Equalizer Connection.................. 77 Steam Failure Modes........................... 133
Oil Return Connection .......................... 78 VFD Diagnostics .............0.00.0.0..0....... 133
Expansion Valve Adjustment.................... 78 START-UP CHECKLIST -
Hot Gas Bypass............ 0 78 39 SERIES AHU UNITS....................... CL-1
Hot Gas Bypass Piping and Wiring.............. 80
Caen ener e ener
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53390009-01 Printed in U.S.A. Form 39M-11SI Pg 1 4-11 Replaces: 39M-10SI