507788-01P Issue 1818 Page 1 of 20
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INSTALLATION INSTRUCTIONS
HMGX*P Series Air Handler
(P) 507788-01P
*P507788-01P*
Manufactured By
Comfort-Aire / Century
1900 Wellworth Ave.
Jackson, MI 49203
Table of Contents
HMGX*P Unit Dimensions – Upow – Inches (mm) ....2
Shipping and Packing List ...........................................3
General ........................................................................3
Requirements ..............................................................3
Installation Clearances ................................................4
Installation ...................................................................4
Condensate Drain........................................................6
Duct System and Filters .............................................8
Brazing Refrigerant Lines ............................................9
Sealing the Unit .........................................................11
Electrical Connections ............................................... 11
Blower Performance Data .........................................15
Air Flow - Cooling Blower Speed ...............................16
Operation Inspection .................................................16
Operation ...................................................................17
Maintenance ..............................................................17
Professional Maintenance .........................................17
Cabinet Insulation ......................................................18
Use of Air Handler During Construction.....................18
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, personal
injury or loss of life. Installation and service must be
performed by a licensed professional HVAC installer or
equivalent, service agency, or the gas supplier.
WARNING
The Clean Air Act of 1990 bans the intentional venting
of refrigerant (CFCs, HCFCs and HFCs) as of July
1, 1992. Approved methods of recovery, recycling or
reclaiming must be followed. Fines and/or incarceration
may be levied for noncompliance.
IMPORTANT
As with any mechanical equipment, contact with sharp
sheet metal edges can result in personal injury. Take
care while handling this equipment and wear gloves
and protective clothing.
CAUTION
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