Table of Contents
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In complying with Johnson Controls policy for continu-
ous product improvement, the information contained
in this document is subject to change without notice.
While Johnson Controls makes no commitment to up-
date or provide current information automatically to the
manual owner, that information, if applicable, can be
obtained by contacting the nearest Johnson Controls
service office.
SAFETY SYMBOLS .......................................................................................................................2
CHANGEABILITY OF THIS DOCUMENT .....................................................................................3
TABLE OF CONTENTS .................................................................................................................3
GENERAL INFORMATION ...........................................................................................................4
PRE-INSTALLATION INSPECTION OF EQUIPMENT .................................................................6
RIGGING .................................................................................................................................................6
INSTALLATION .............................................................................................................................6
UNIT MOUNTING ...................................................................................................................................7
SEPARATION OF UNITS .......................................................................................................................8
INTERCONNECTING REFRIGERANT TUBING - SPLIT INSTALLATION ...........................................8
DUCTWORK ...............................................................................................................................11
LOUVER SIZING GUIDELINES ...........................................................................................................11
ELECTRICAL WIRING ................................................................................................................12
PACKAGED UNIT .......................................................................................................................12
SPLIT SYSTEM ...........................................................................................................................12
MOTOR AND PULLEY DATA ...............................................................................................................14
BLOWER SPEED ADJUSTMENT .......................................................................................................14
START-UP AND OPERATION ....................................................................................................15
REFRIGERANT CHARGES ..................................................................................................................15
PRESSURE SWITCH SETTINGS .........................................................................................................15
MAINTENANCE / SERVICE .......................................................................................................17
FILTERS ................................................................................................................................................17
EVAPORATOR AND CONDENSER COILS .........................................................................................17
BLOWERS ............................................................................................................................................17
DRIVE BELTS .......................................................................................................................................17
REFRIGERANT CIRCUIT(S) ................................................................................................................17
COMFORT ALERT™ DIAGNOSTICS ........................................................................................18
LED DESCRIPTION ..............................................................................................................................18
INTERPRETING THE DIAGNOSTIC LEDS .........................................................................................18
INSTALLATION VERIFICATION .................................................................................................21
JOHNSON CONTROLS
CHANGEABILITY OF THIS DOCUMENT
TABLE OF CONTENTS
It is the responsibility of operating/service personnel as
to the applicability of these documents to the equipment
in question. If there is any question in the mind of oper-
ating/service personnel as to the applicability of these
documents, then, prior to working on the equipment, they
should verify with the owner whether the equipment has
been modified and if current literature is available.
FORM 145.32-IOM1 (908)
3
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