Contents
Main
Installation, Start-Up and Service Instructions
TABLE OF CONTENTS
SAFETY CONSIDERATIONS
40RU
Packaged Air-Handling Units 60 Hz with Puron (R-410A) Refrigerant Sizes 25, 28, 30
PRE-INSTALLATION
Moving and St orage
Rigging
INSTALLATION
General
Fig. 2A Dimensions Size 25
Fig. 2B Dimensions Sizes 28 and 30
Table 1A 40RUA Physical Data, English Cooling Units
Table 1B 40RUA Physical Data, SI Cooling Units
Table 1C 40RUS Physical Data, English Chilled Water Units
Table 1D 40RUS Physical Data, SI Chilled Water Units
Unit Positioning
Page
Unit Isolation
Refrigerant and Chilled Water Piping Access
Refrigerant Piping
Fig. 8 Face-Split Coil Suction and Liquid Line Pipin g (Typical)
Fig. 9 Typical Evaporator Coil Connections (40RU)
*
FIRST ON/LAST OFF = B
VERTICAL INSTALLATION
LEGEND TXV Thermostati c Expansion Valve NOTE: The 8 oclock positio n is shown above.
Table 2 Factory-Installed Nozzle and Distributor Data
Table 3 Fitting Requirements
Table 3 Fitting Requirement (cont)
Chillled W ater Piping
Condensate Drain
Fan Motors and Drives
Power Supply and Wiring
Table 4 Electrical Data , Sta nda rd Motors
Legend and Notes For Tables 4 and 5
Table 5 Electrica l Data, Alterna te Motors
IMPORT ANT :
Fig. 17 Unit Wiring
Connecting Ductwork Refer to the Carrier System
Return-Air Filters
START-UP
SERVICE
Panels
Fan Motor Lubrication
Fan Shaf t Bearings
Centering Fan Wheel
Fan Shaf t Position Adjustment
Individual Fan Wheel Adjustment
Fan Belt s
Fan Rot ation
Fan Pulley Alignment
Pulley and Drive Adjustment
Condensate Drains
Return-Air Filters
Chilled W ater Coil Freeze Protection
Replacing Filters
Table 8A Fan Motor Data, Standard Motor English
Table 8B Fan Motor Data, Alternate Motor English
Table 8C Fan Motor Data, Standard Motor SI
Table 8D Fan Motor Data, Alternate Motor SI
Table 9A Standard Drive Data, 60 Hz English
Table 9B Medium-Static Drive Data, 60 Hz English
Table 9C High-Stat ic Drive Data, 6 0 Hz English
Table 9D Standard Drive Data, 60 Hz SI
Table 9E Medium-Static Drive Data, 60 Hz SI
Table 9F High-Static Drive Data, 60 Hz SI
Page
Table 10B 40RU Standard Fan Performance Data 0-600 kPa External Static Pressure SI
Table 10B 40RU Standard Fan Performance Data 0-600 kPa External Static Pressure SI (cont)
Page
Table 10D 40RU High-Capacity Fan Performance Data 0-600 kPa External Static Pressure SI
Table 10D 40RU High-Capacity Fan Performance Data 0-600 kPa External Static Pressure SI (cont)
Legend and Notes for Tables 10A and 10C
FACTORY-SUPPLIED PRESSURE DROP ENGLISH
FACTORY-SUPPLIED PRESSURE DROP SI
Legend and Notes for Tables 10B and 10D
CL-1
I. PRELIMINARY INFORMATION
II. PRE-START-UP
III. START-UP