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506 01 5001 00 May 2007
INSTALLATION INSTRUCTIONS
3-phase R-22 Split System Heat Pump
Product Family: N2H3, H2H3
These instructions must be read and understood completely before attempting installation.
DANGER, WARNING, CAUTION, and
NOTE
The signal words DANGER, WARNING, CAU‐
TION, and NOTE are used to identify levels of haz‐
ard seriousness. The signal word DANGER is only
used on product labels to signify an immediate haz‐
ard. The signal words WARNING, CAUTION, and
NOTE will be used on product labels and through‐
out this manual and other manuals that may apply
to the product.
DANGER - Immediate hazards which will result in
severe personal injury or death.
WARNING - Hazards or unsafe practices which
could result in severe personal injury or death.
CAUTION - Hazards or unsafe practices which
may result in minor personal injury or product or
property damage.
NOTE - Used to highlight suggestions which will
result in enhanced installation, reliability, or opera‐
tion.
Signal Words in Manuals
The signal word WARNING is used throughout this
manual in the following manner:
The signal word CAUTION is used throughout this
manual in the following manner:
Signal Words on Product Labeling
Signal words are used in combination with colors
and/or pictures on product labels.
WARNING
Safety Labeling and Signal Words
!
CAUTION
WARNING
!
TABLE OF CONTENTS
Inspect New Unit 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Considerations 2. . . . . . . . . . . . . . . . . . . . . . . . . . .
Location 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clearances 2 - 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Support 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Refrigeration System 4 - 9. . . . . . . . . . . . . . . . . . . . . . . .
Electrical Wiring 9 - 10. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Defrost System 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Start-up Procedure 12. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Refrigerant Charge 12 - 13. . . . . . . . . . . . . . . . . . . . . . . .
Sequence of Operation 13. . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Comfort Alertt Diagnostics Codes 15. . . . . . . . . . . . . .
!
WARNING
DEATH, PERSONAL INJURY, AND/OR PROPERTY
DAMAGE HAZARD
Failure to carefully read and follow this warning
could result in equipment malfunction, property
damage, personal injury and/or death.
Installation or repairs made by unqualified per‐
sons could result in equipment malfunction, prop‐
erty damage, personal injury and/or death.
The information contained in this manual is in‐
tended for use by a qualified service technician fa‐
miliar with safety procedures and equipped with
the proper tools and test instruments.
Installation must conform with local building
codes and with the National Electrical Code
NFPA70 current edition or Canadian Electrical
Code Part 1 CSA C.22.1.