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PRODUCT LITERATURE
1995 Lennox Industries Inc.
Dallas, Texas
HP25 HEAT PUMP UNIT
HP25 heat pump units are designed for expansion valve
systems only. They are not designed for RFC systems.
Refer to Lennox engineering handbook for expansion
valve kits which must be ordered separately.
SHIPPING AND PACKING LIST
1- Assembled HP25 heat pump unit
Check unit for shipping damage. Consult last carrier
immediately if damage is found.
GENERAL INFORMATION
These instructions are intended as a general guide and
do not supersede national or local codes in any way.
Authorities having jurisdiction should be consulted be
fore installation.
IMPORTANT
The Clean Air Act of 1990 bans the intentional
venting of refrigerant (CFC's and HCFC's) as of July
1, 1992. Approved methods of recovery, recycling
or reclaiming must be followed. Fines and/or in
carceration may be levied for non-compliance.
INSTALLATION
INSTRUCTIONS
HP25 SERIES UNITS
HEAT PUMP UNITS
503,302M
6/95
Supersedes 503,247M
TABLE OF CONTENTS
HP25 HEAT PUMP UNIT 1. . . . . . . . . . . . . . . . . . . . . . . . . . . .
SHIPPING AND PACKING LIST 1. . . . . . . . . . . . . . . . . . . . . .
GENERAL INFORMATION 1. . . . . . . . . . . . . . . . . . . . . . . . . .
HP25 UNIT DIMENSIONS 2. . . . . . . . . . . . . . . . . . . . . . . . . .
HP25 PARTS ARRANGEMENT 3. . . . . . . . . . . . . . . . . . . . . .
SETTING THE UNIT 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ELECTRICAL 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PLUMBING 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REFRIGERATION 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LEAK TESTING 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EVACUATION 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
START-UP 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHARGING 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SYSTEM OPERATION 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DEFROST SYSTEM 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAINTENANCE 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HP25 CHECK POINTS 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
WARNING
Product contains fiberglass wool.
Disturbing the insulation in this product during
installation, maintenance, or repair will expose
you to fiberglass wool. Breathing this may cause
lung cancer. (Fiberglass wool is known to the
State of California to cause cancer.)
Fiberglass wool may also cause respiratory, skin,
and eye irritation.
To reduce exposure to this substance or for further
information, consult material safety data sheets
available from address shown below, or contact
your supervisor.
Lennox Industries Inc.
P.O. Box 799900
Dallas, TX 75379-9900
Litho U.S.A.
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