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USER’S, MAINTENANCE
and
SERVICE INFORMATION
MANUAL
3 THRU 20 TON
SINGLE PACKAGE
HEAT PUMP UNITS
820900-UUM-A-1011
TABLE OF CONTENTS
GENERAL INFORMATION . . . . . . . . . . . . . 2
HOW YOUR HEAT PUMP WORKS . . . . . . . . . . 2
SYSTEM OPERATION . . . . . . . . . . . . . . . . . 2
HEATING CYCLE . . . . . . . . . . . . . . . . . . . . . . . . 2
COOLING CYCLE . . . . . . . . . . . . . . . . . . . . . . . . 2
AIDS TO MAXIMUM OPERATING
EFFICIENCY . . . . . . . . . . . . . . . . . . . . . . . . . 2
HEATING CONSERVATION . . . . . . . . . . . . . . . . 2
COOLING CONSERVATION . . . . . . . . . . . . . . . 3
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . 3
LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . 3
FILTER CARE . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
AIR FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
REGISTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
CONDENSER COIL . . . . . . . . . . . . . . . . . . . . . . 5
BLOWER ASSEMBLY . . . . . . . . . . . . . . . . . . . . 5
CHARACTERISTICS OF HEAT PUMPS . . . 5
A CONSTANT HEAT . . . . . . . . . . . . . . . . . . . . . . 5
WATER RUN - OFF . . . . . . . . . . . . . . . . . . . . . . 5
OUTDOOR COIL DEFROSTING . . . . . . . . . . . . 5
BEFORE CALLING A SERVICE PERSON . . . . . 5
The manufacturer recommends that the “User” read all sections of this
manual and keep the manual for future reference.