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INSTALLATION INSTRUCTIONS
R−410A Split System Air Conditioner
These instructions must be read and understood completely before attempting installation.
DANGER, WARNING, CAUTION, and
NOTE
The
signal
words
CAUTION, and NOTE are used to identify levels of
hazard seriousness. The signal word DANGER is
only used on product labels to signify an immediate
hazard. The signal words WARNING, CAUTION,
and NOTE will be used on product labels and
throughout 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
operation.
TABLE OF CONTENTS
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Safety Considerations
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Location
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Model Series: N4A3, H4A3, C4A3, T4A3
N4A4, H4A4, C4A4, T4A4
Safety Labeling and Signal Words
DANGER,
WARNING,
2 − 3
4 − 8
. . . . . . . . . . . . . . . . .
Signal Words in Manuals
The signal word WARNING is used throughout this
manual in the following manner:
WARNING
!
The signal word CAUTION is used throughout this
manual in the following manner:
CAUTION
!
Signal Words on Product Labeling
Signal words are used in combination with colors
and/or pictures on product labels.
2
WARNING
!
2
2
DEATH, PERSONAL INJURY, AND/OR PROPERTY
DAMAGE HAZARD
4
Failure to carefully read and follow this warning
could result in equipment malfunction, property
damage, personal injury and/or death.
9
Installation or repairs made by unqualified per-
9
sons could result in equipment malfunction, prop-
erty damage, personal injury and/or death.
10
10
The information contained in this manual is in-
tended for use by a qualified service technician fa-
11
miliar with safety procedures and equipped with
11
the proper tools and test instruments.
13
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.
WARNING
421 01 5100 01
October 2006
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Table of Contents
Related Manuals for KeepRite N4A3
Summary of Contents for KeepRite N4A3
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Page 1: Table Of Contents
INSTALLATION INSTRUCTIONS R−410A Split System Air Conditioner Model Series: N4A3, H4A3, C4A3, T4A3 N4A4, H4A4, C4A4, T4A4 These instructions must be read and understood completely before attempting installation. Safety Labeling and Signal Words DANGER, WARNING, CAUTION, and NOTE Signal Words in Manuals... -
Page 2: Inspect New Unit
INSTALLATION INSTRUCTIONS R−410A Split System Air Conditioner INSPECT NEW UNIT After uncrating unit, inspect thoroughly for hidden dam- age. If damage is found, notify the transportation compa- ny immediately and file a concealed damage claim. SAFETY CONSIDERATIONS Consult a qualified installer, service agency, or the dealer/ WARNING distributor for information and assistance. -
Page 3: Clearances
INSTALLATION INSTRUCTIONS R−410A Split System Air Conditioner Figure 1 Clearances (various examples) Wall Wall 6” 24” Service 24” 18” Service 6” 18” 18” 18” Wall Wall 6” 6” 24” 18” 18” Service 24” Service 6” 4” 4” wide fence 6” Post Wall 24”... -
Page 4: Unit Support
INSTALLATION INSTRUCTIONS R−410A Split System Air Conditioner UNIT SUPPORT NOTE: Unit must be level | 2 degrees (a inch rise or fall CAUTION per foot of run) or compressor may not function properly. A. GROUND LEVEL INSTALLATION PROPERTY DAMAGE HAZARD The unit must be level and supported above grade by Failure to follow this caution may result in proper- beams, platform, or a pad. - Page 5 INSTALLATION INSTRUCTIONS R−410A Split System Air Conditioner When installing a hard shut−off TXV on an indoor coil, fol- B. REFRIGERANT LINE SETS low the instructions provided with the new TXV. The refrigerant line set must be properly sized to assure maximum efficiency and proper oil circulation.
- Page 6 INSTALLATION INSTRUCTIONS R−410A Split System Air Conditioner C. ROUTING AND SUSPENDING REFRIGERANT enough so that lines can be wrapped with extra insulation. Fill all gaps with RTV caulk. This will prevent noise trans- LINES mission between the tubing and the foundation or wall. Run refrigerant lines as straight and direct as possible, avoiding unnecessary bends and turns.
- Page 7 INSTALLATION INSTRUCTIONS R−410A Split System Air Conditioner E. LIQUID LINE FILTER−DRIER G. BRAZING CONNECTIONS Outdoor units are shipped with an appropriate filter−drier WARNING for installation in the liquid line. Leave the plugs in the tube ends until the filter−drier is installed. The optimal location for the filter−drier is close to the indoor coil.
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Page 8: Refrigeration System
INSTALLATION INSTRUCTIONS R−410A Split System Air Conditioner Deep Vacuum Method Figure 9 Triple Evacuation Sequence The deep vacuum method requires a vacuum pump ca- pable of pulling a vacuum to 500 microns and a vacuum EVACUATE gauge capable of accurately measuring this vacuum lev- el. -
Page 9: Electrical Wiring
INSTALLATION INSTRUCTIONS R−410A Split System Air Conditioner ELECTRICAL WIRING WARNING Electrical Supply (Line Voltage) Figure 10 Connections ELECTRICAL SHOCK HAZARD DISCONNECT PER NEC AND/OR Failure to turn off the main (remote) electrical dis- LOCAL CODES connect device could result in personal injury or CONTACTOR death. -
Page 10: Refrigerant Charge
INSTALLATION INSTRUCTIONS R−410A Split System Air Conditioner REFRIGERANT CHARGE Outdoor units are shipped with a refrigerant charge to 2. Measure liquid service valve pressure by attaching match a specific indoor coil and 15 feet of refrigerant line. an accurate gauge to service port. If shorter or longer refrigerant lines or a different indoor 3. -
Page 11: Troubleshooting
INSTALLATION INSTRUCTIONS R−410A Split System Air Conditioner TROUBLESHOOTING Some models are factory equipped with the Comfort Comfort Alertt Diagnostics Alertt Diagnostics device in the control box (refer to Fig- Figure 13 (some models) ure 13). Comfort Alert provides around−the−clock moni- toring for common electrical problems, compressor Compressor Wires defects, and broad system faults. - Page 12 INSTALLATION INSTRUCTIONS R−410A Split System Air Conditioner Figure 14 Comfort Alertt Diagnostics (some models) Status LED Status LED Description Status LED Troubleshooting Information Green “POWER” Module has power Supply voltage is present at module terminals Red “TRIP” Thermostat demand signal 1.
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Page 13: R−410A Quick Reference Guide
INSTALLATION INSTRUCTIONS R−410A Split System Air Conditioner R−410A QUICK REFERENCE GUIDE • R−410A refrigerant operates at 50% − 70% higher pressures than R−22. Be sure that servicing equipment and replacement components are designed to operate with R−410A. • R−410A refrigerant cylinders are rose colored. •...