INSTALLATION
MANUAL
CAUTION:
READ ALL SAFETY GUIDES BEFORE YOU
BEGIN TO INSTALL YOUR UNIT.
SAVE THIS MANUAL
SINGLE PACKAGE AIR CONDITIONERS AND
SINGLE PACKAGE ELECTRIC UNITS
DM090, 120 and 150
7-1/2 TO 12-1/2 TON
(380V, 3 Phase, 60 HZ)
035-17311-002-A-0803
®
NOTES, CAUTIONS AND WARNINGS
The installer should pay particular attention to the words:
NOTE, CAUTION, and WARNING. Notes are intended to
clarify or make the installation easier. Cautions are given
to prevent equipment damage. Warnings are given to alert
installer that personal injury and/or equipment damage
may result if installation procedure is not handled properly.
CONTENTS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . .5
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
REFERENCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
APPROVALS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
START-UP (COOLING). . . . . . . . . . . . . . . . . . . . . . . . . .37
NORMAL MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . .39
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . .39
See following pages for a complete Table of Contents.
