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Table of Contents
- 1 Table of Contents
- 2 Inspect New Unit
- 3 Safety Considerations
- 4 Location
- 5 Clearances
- 6 Unit Support
- 7 Refrigeration System
- 8 Electrical Wiring
- 9 Start-Up Procedure
- 10 Refrigerant Charge
- 11 Sequence of Operation
- 12 Troubleshooting
- 13 Maintenance
- 14 Comfort Alertt Diagnostics Codes
- 15 R-410A Quick Reference Guide
- Download this manual
INSTALLATION INSTRUCTIONS
R-410A Split System Air Conditioner
Product Family: N4A3, C4A3, H4A3, T4A3,
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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N4A4, C4A4, H4A4, T4A4
Safety Labeling and Signal Words
DANGER,
WARNING,
2 - 3
5 - 8
9 - 10
11
11
11
12
12
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13
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14
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.
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.
WARNING
421 01 5101 00
March 2008
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Table of Contents
Related Manuals for International comfort products N4A3 Series
Summary of Contents for International comfort products N4A3 Series
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Page 1: Table Of Contents
INSTALLATION INSTRUCTIONS R-410A Split System Air Conditioner Product Family: N4A3, C4A3, H4A3, T4A3, N4A4, C4A4, H4A4, T4A4 These instructions must be read and understood completely before attempting installation. Safety Labeling and Signal Words DANGER, WARNING, CAUTION, and Signal Words in Manuals NOTE The signal word WARNING is used throughout this signal... -
Page 2: Inspect New Unit
INSTALLATION INSTRUCTIONS R-410A Split System Air Conditioner INSPECT NEW UNIT After uncrating unit, inspect thoroughly for hidden company immediately and file a concealed damage damage. If damage is found, notify the transportation claim. SAFETY CONSIDERATIONS Consult a qualified installer, service agency, or the WARNING dealer/distributor for information and assistance. - Page 3 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”...
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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 Figure 2 Tie Down Knockouts per foot of run) or compressor may not function properly. A. GROUND LEVEL INSTALLATION View From Top a”... -
Page 5: Refrigeration System
INSTALLATION INSTRUCTIONS R-410A Split System Air Conditioner REFRIGERATION SYSTEM A. COMPONENT MATCHES B. REFRIGERANT LINE SETS Check to see that the proper system components are in The refrigerant line set must be properly sized to assure place, especially the indoor coil. maximum efficiency and proper oil circulation. - Page 6 INSTALLATION INSTRUCTIONS R-410A Split System Air Conditioner Fill all gaps with RTV caulk. This will prevent noise WARNING transmission between the tubing and the foundation or wall. PERSONAL INJURY HAZARD Along floor or ceiling joists, suspend refrigerant lines so that they do not contact the building structure, water Failure to relieve system pressure could result in pipes, or ductwork.
- Page 7 INSTALLATION INSTRUCTIONS R-410A Split System Air Conditioner G. BRAZING CONNECTIONS Liquid Line Filter-Drier Figure 5 Installed at Indoor Coil WARNING FIRE HAZARD Failure to remove refrigerant and oil charge before brazing could result in personal injury, death, and/ or property damage. Refrigerant and oil mixture could ignite and burn as it escapes and contacts brazing torch.
- Page 8 INSTALLATION INSTRUCTIONS R-410A Split System Air Conditioner Deep Vacuum Method Figure 7 Triple Evacuation Sequence The deep vacuum method requires a vacuum pump capable of pulling a vacuum to 500 microns and a vacuum EVACUATE gauge capable of accurately measuring this vacuum level.
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Page 9: Electrical Wiring
INSTALLATION INSTRUCTIONS R-410A Split System Air Conditioner ELECTRICAL WIRING Wiring Connections WARNING Make all outdoor electrical supply (Line Voltage) connections with raintight conduit and fittings. Most ELECTRICAL SHOCK HAZARD codes require a disconnect switch outdoors within sight of the unit. Consult local codes for special requirements. Failure to turn off the main (remote) electrical dis‐... - Page 10 INSTALLATION INSTRUCTIONS R-410A Split System Air Conditioner Figure 9 Typical Thermostat Connections THERMOSTAT FURNACE AIR CONDITIONER 24 VAC HOT 24 VAC COM W/W1 HEAT STAGE 1 Y/Y2 COOL STAGE 1 INDOOR FAN THERMOSTAT FAN COIL AIR CONDITIONER 24 VAC HOT 24 VAC COM W/W1 HEAT STAGE 1...
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Page 11: Start-Up Procedure
INSTALLATION INSTRUCTIONS R-410A Split System Air Conditioner START-UP PROCEDURE 1. Set indoor thermostat selector switch to OFF. 4. Set indoor thermostat at desired temperature. Be sure setpoint is below indoor ambient temperature 2. Turn ON all electrical disconnect devices. or thermostat will not call for cooling. 3. -
Page 12: 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 Figure 11 (some models) Figure 11). Comfort Alert provides around-the-clock monitoring for common electrical problems, compressor Compressor Wires defects, and broad system faults. -
Page 13: Comfort Alertt Diagnostics Codes
INSTALLATION INSTRUCTIONS R-410A Split System Air Conditioner Figure 12 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. -
Page 14: R-410A Quick Reference Guide
• When system must be opened for service, break vacuum with dry nitrogen and replace all filter-driers. • Do not vent R-410A into the atmosphere. • Do not use capillary tube indoor coils. • Observe all WARNINGS, CAUTIONS, NOTES, and bold text. International Comfort Products, LLC 421 01 5101 00 Lewisburg, TN 37091...