Carrier Aero 39MN Series User Manual

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53390024-01 Printed in U.S.A. Form 39M-21SI Rev. B Pg 1 8-2020 Replaces: 39M-20SI
Installation, Start-Up and
Service Instructions
CONTENTS
Page
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 3
UNIT AND COMPONENT IDENTIFICATION . . . . . . . . 4
PRE-INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 84
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Rigging and Handling . . . . . . . . . . . . . . . . . . . . . . . . 84
Long-Term Storage . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Service Clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Drain Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Unit Suspension . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Internal Vibration Isolation . . . . . . . . . . . . . . . . . . . . 85
• RE
MOVING HOLDDOWN BOLTS, AIRFOIL, PLENUM
AND FORWARD-CURVED FANS
• ADJUSTING ISOLATOR SPRINGS
External Vibration Isolation . . . . . . . . . . . . . . . . . . . 85
Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Pier or Beam Mount . . . . . . . . . . . . . . . . . . . . . . . . . 86
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Indoor and Outdoor Unit Shipping Split (All Sizes) 87
• NON-STACKED UNITS
• STACKED UNITS
Duct Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
• MI
XING BOX/INLET PLENUM/DISCHARGE
PLENUM/EXTERNAL BYPASS/RETURN FAN
• MIXING BOX/INLET PLENUM/DISCHARGE PLENUM
(BOTTOM)
• HOUSED FAN DISCHARGE CONNECTIONS (NOT
PLENUM FANS)
• BOTTOM RETURN FAN CONNECTIONS
• PLENUM FAN DUCT CONNECTIONS
• DRAW-THRU PLENUM FAN DISCHARGE
FABRICATION
Panel Cutting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Face and Bypass Dampers . . . . . . . . . . . . . . . . . . . 97
Zone Damper Section . . . . . . . . . . . . . . . . . . . . . . . 100
• ZONE DAMPER LINKAGE (FIG. 45 AND 46)
Mixing Box/Filter Mixing Box Damper Linkage . . 101
• CONTROL DAMPERS
• DAMPER LINKAGE ADJUSTMENT
• LINKAGE ADJUSTMENT
• FIELD SUPPLIED AND INSTALLED ACTUATORS
Mixing Box Damper Actuators . . . . . . . . . . . . . . . . 104
Vertical Draw-Thru Units . . . . . . . . . . . . . . . . . . . . 104
STACKED Supply Fan, RETURN FAN AND EXHAUST
BOX SECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Stacked Units Turning Plenum . . . . . . . . . . . . . . . 104
Fan Sled Disassembly . . . . . . . . . . . . . . . . . . . . . . 106
Fan Sled Dimensions . . . . . . . . . . . . . . . . . . . . . . . .106
Fan Motors and Drives . . . . . . . . . . . . . . . . . . . . . .110
• JU
NCTION BOX CONDENSATE PREVENTION
Motor Power Wiring . . . . . . . . . . . . . . . . . . . . . . . . .110
• MOTOR OVERLOAD PROTECTION
Sheaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110
• ALIGNMENT
V-Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111
• TENSION MEASUREMENT PROCEDURE
Direct Drive Fan Alignment . . . . . . . . . . . . . . . . . . .113
Fan Airflow Measurement Piezometer Ring . . . . .113
• CALCULATION WHEN USING THE PIEZOMETER
Outdoor Hoods and Louvers . . . . . . . . . . . . . . . . .113
Coil Connection Housing
(O
utdoor Unit — All Sizes) . . . . . . . . . . . . . . . . .114
Power Exhaust Hood Field Installation . . . . . . . . .118
Humidifier Installation . . . . . . . . . . . . . . . . . . . . . . .121
• ASSEMBLE CONTROL VALVE ASSEMBLY (FIG. 86
AND 87)
• ASSEMBLE STRAINER AND TRAP ASSEMBLY AND
VALVE ASSEMBLY (FIG. 88-91)
Assembly of Vertical Manifolds . . . . . . . . . . . . . . .124
Coil Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . .124
• IN
STALLATION OF SINGLE HEIGHT COILS
• INSTALLATION OF STACKED COILS
Water and Steam Coil Piping Recommendations .127
• GENERAL
• WATER COILS
• STEAM COILS
Coil Freeze-Up Protection . . . . . . . . . . . . . . . . . . . .129
• WATER COILS
• STEAM COILS
• INNER DISTRIBUTING TUBE STEAM COILS
Refrigerant Piping, Direct-Expansion Coils . . . . .130
• SUCTION PIPING
Distributor Nozzle Change-Out . . . . . . . . . . . . . . . .131
Filter Drier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131
TXV (Thermostatic Expansion Valve) . . . . . . . . . .131
• TXV LOCATION
• SOLDER TECHNIQUES
• TXV BULB LOCATION AND INSTALLATION
• EX
TERNAL EQUALIZER CONNECTION
• OIL RETURN CONNECTION
• EXPANSION VALVE ADJUSTMENT
Hot Gas Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . .133
• SPECIAL PIPING WITH 4 SPLITS PER COIL
Hot Gas Bypass Piping and Wiring . . . . . . . . . . . .136
Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . .137
• DRAW-THRU
Aero
®
39MN,MW03-110
Indoor and Weathertight Outdoor
Air Handlers

Carrier Aero 39MN Series Specifications

General

Brand	Carrier
Model	Aero 39MN Series
Category	Air Handlers
Language	English