Instructions / Assembly

Page 1 of 19
THIS MANUAL MUST BE LEFT WITH THE
HOMEOWNER FOR FUTURE REFERENCE
The installation of this appliance must conform to the requirements of the National Fire Protection Association; the National
Electrical Code, ANSI/NFPA No. 70 (latest edition) in the United States; the Canadian Electrical Code Part 1, CSA 22.1
(latest edition) in Canada; and any state or provincial laws or local ordinances. Local authorities having jurisdiction should
be consulted before installation is made. Such applicable regulations or requirements take precedence over the general
instructions in this manual.
CAUTION
Save these instructions for future reference
INSTALLATION AND MAINTENANCE
INSTRUCTIONS
RESIDENTIAL PACKAGED UNITS
Air Conditioners and Heat Pumps
05/2021
Table of Contents
Unit Dimensions ..........................................................2
Roof Curb Dimensions ................................................4
Adjustable Roof Curb Dimensions...............................6
Installation ...................................................................8
Electrical Wiring .........................................................10
Duct System ..............................................................11
Filters .........................................................................11
Condensate Drain......................................................12
Sequence of Operation..............................................12
Maintenance ..............................................................15
Wiring Diagrams ........................................................18
If this unit is to be installed in a mobile or manufactured
home application, the duct system must be sized to
achieve static pressures within the manufacturer’s
guidelines. All other installation guidelines must also
be followed. Failure to do so may result in equipment
damage, personal injury, and improper performance of
the unit.
WARNING
Manufactured By
MRCOOL LLC
48 Remington Way
Hickory, KY 42051
For your safety, do not store or use gasoline or other
other appliance. Such actions could result in property
damage, personal injury, or death.
WARNING
Installation and servicing of air conditioning equipment
can be hazardous due to internal refrigerant pressure
and live electrical components. Only trained and
this equipment. Installation and service performed by
personal injury, or death.
WARNING
MPC*1M414A-2
& MPH*1M414A-2
mrcool.com