Carrier 45MBCAQ - User Manual

Specifications subject to change without notice.
NOTE: Read the entire instruction manual before starting the
installation.
TABLE OF CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Model Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
CLEARANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
PRODUCT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
ELECTRICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
CONNECTION DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
DRAINPIPE INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
REFRIGERANT PIPING CONNECTION . . . . . . . . . . . . . . . . . . . 18
WIRING PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
INDOOR UNIT WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
PANEL INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
TEST RUN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
PACKING AND UNPACKING THE UNIT . . . . . . . . . . . . . . . . . 25
TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
DUCTLESS START-UP CHECKLIST - Single Zone . . . . . . . . . . 28
SAFETY CONSIDERATIONS
Installing, starting up, and servicing air-conditioning equipment can
be hazardous due to system pressures, electrical components, and
equipment location (roofs, elevated structures, etc.).
Only trained, qualified installers and service mechanics should install,
start-up, and service this equipment.
Untrained personnel can perform basic maintenance functions such as
coil cleaning. All other operations should be performed by trained
service personnel.
When working on the equipment, observe precautions in the literature
and on tags, stickers, and labels attached to the equipment.
Follow all safety codes. Wear safety glasses and work gloves. Keep a
quenching cloth and fire extinguisher nearby when brazing. Use care
in handling, rigging, and setting bulky equipment.
Read these instructions thoroughly and follow all warnings or
cautions included in literature and attached to the unit. Consult local
building codes and National Electrical Code (NEC) for special
requirements. Recognize safety information.
This is the safety-alert symbol .
When you see this symbol on the unit and in instructions or manuals,
be alert to the potential for personal injury. Understand these signal
words: DANGER, WARNING, and CAUTION. These words are
used with the safety-alert symbol.
DANGER identifies the most serious hazards which will result in
severe personal injury or death.
WARNING signifies hazards which could result in personal injury or
death.
CAUTION is used to identify unsafe practices which may result in
minor personal injury or product and property damage.
NOTE is used to highlight suggestions which will result in enhanced
installation, reliability, or operation.
Installation Instructions
45MBCAQ
Split-Type Four-Way Cassette Indoor Unit Ductless System
Sizes 9K, 12K, 18K, 24K, 36K, 48K

Carrier 45MBCAQ Specifications