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INSTALLATION, OPERATION
AND MAINTENANCE INSTRUCTIONS
FOR 45000 SERIES AIR CONDITIONERS
Selecting an Installation Location
Installing the Roof Top Unit
Installing Optional Heater Accessory
Installing Ceiling Assembly
Operation and Maintenance
Wall Thermostat Identification and
Operation
Serial Number Nomenclature
Optional Extended Warranty
These instructions are a general guide for installing the 45000 Series Coleman-Mach roof top air conditioners. For
specific air conditioner details, it will be necessary to refer to ALL printed documents supplied with this air conditioner.
These instructions are for the use of qualified individuals specially trained and experienced in installation of this type
equipment and related system components.
Installation and service personnel are required by some states to be licensed. PERSONS NOT QUALIFIED SHALL
NOT INSTALL NOR SERVICE THIS EQUIPMENT.
NOTE: The words “Shall” or “Must” indicate a requirement which is essential to satisfactory and safe product
performance. The words “Should” or “May” indicate a recommendation or advice which is not essential and not
required but which may be useful or helpful.
WARNING! – SHOCK HAZARD To prevent the possibility of severe personal injury or equipment damage due
to electrical shock, always be sure the electrical power source to the appliance is disconnected.
CAREFULLY FOLLOW ALL INSTRUCTIONS AND WARNINGS IN THIS BOOKLET TO AVOID DAMAGE TO
THE EQUIPMENT, PERSONAL INJURY OR FIRE.
WARNING! Improper installation may damage equipment, can create a hazard and will void the warranty.
The use of components not tested in accordance with these units will void the warranty, may make the equipment
in violation of state codes, may create a hazard and may ruin the equipment.
P/N: 1980A036, Rev. 2 08-04-2020
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