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48TC
TABLE OF CONTENTS
PAGE
PAGE
FEATURES AND BENEFITS . . . . . . . . . . . . . . . . . . . . 3
COOLING TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
MODEL NUMBER NOMENCLATURE . . . . . . . . . . . . 4
STATIC PRESSURE ADDERS . . . . . . . . . . . . . . . . . . 30
FACTORY OPTIONS AND/OR ACCESSORIES . . . . . 5
FAN PERFORMANCE . . . . . . . . . . . . . . . . . . . . . . . . . 31
ARI COOLING RATING TABLE . . . . . . . . . . . . . . . . . 8
OUTDOOR AIR INTAKE & EXHAUST PERF . . . . . 42
HEAT RATING TABLES
....................... 9
ELECTRICAL INFO . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
SOUND PERFORMANCE TABLE . . . . . . . . . . . . . . . 10
MCA / MOCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
TYPICAL WIRING DIAGRAMS . . . . . . . . . . . . . . . . 50
CURBS & WEIGHTS DIMENSIONS . . . . . . . . . . . . . 16
SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . . . . 52
APPLICATION DATA . . . . . . . . . . . . . . . . . . . . . . . . . 20
GUIDE SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . 54
Your Carrier rooftop unit (RTU) was designed by customers for customers. With “no-- strip screw” collars, handled access
panels, and more we’ve made your unit easy to install, easy to maintain, easy to use, and easy to love.
Easy to install:
All WeatherMaker units are convertible to horizontal air flow; no special adapter curbs are necessary. Convertible airflow
design makes it easy to adjust to unexpected job-- site complications. Lighter units make easy replacement. Carrier 3-- 10 ton
48TC rooftops fit on existing Carrier curbs dating back to 1989. Also, our large control box gives you room to work and
room to mount Carrier accessory controls.
Easy to maintain:
Carrier’s easy access handles provide quick and easy access to all normally serviced components. Our “no-- strip” screw
system has superior holding power and guides screws into position while preventing the screw from stripping the unit’s
metal. Take accurate pressure readings by reading condenser pressure with panels on. Simply remove the black, composite
plug, route your gauge line(s) through the hole, and connect them to the refrigeration service valve(s). Now, you can take
refrigeration system pressure readings without affecting the condenser airflow.
Easy to use:
Carrier’s newly designed, master terminal board puts all your connections and troubleshooting points in one convenient
place, standard. Most low voltage connections are made to the same board and make it easy to find what you’re looking for
and easy to access it. Carrier rooftops have high and low pressure switches, a filter drier, and 2” filters standard.
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