INSTALLATION MANUAL
SINGLE PIECE
VARIABLE SPEED AIR HANDLERS
MODELS: AV*(C) SERIES
LIST OF SECTIONS
ISO 9001
Certified Quality
Management System
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 ELECTRIC HEATER INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . .7 LOW VOLTAGE CONTROL CONNECTIONS . . . . . . . . . . . . . . . . . .7 REQUIRED CONTROL
LINE POWER CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 AIRFLOW AND COMFORT SETTING SELECTION . . . . . . . . . . . . 12 UNIT DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
LIST OF FIGURES
Typical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Return Duct Attachment & Component Location . . . . . . . . . . . . . . . . .3 Dimensions & Duct Connection Dimensions . . . . . . . . . . . . . . . . . . . .4 Condensate Deflector on Vertical Drain Pan . . . . . . . . . . . . . . . . . . . .4 Condensate Deflecctor on Horizontal Drain Pan Edge . . . . . . . . . . . .5
TXV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Proper Bulb Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Air Handler Control Board – Communications Connections . . . . . . . . 7 Cooling Models with and without Electric Heat Wiring . . . . . . . . . . . . 8
LIST OF TABLES
Dimensions | . 4 | Electrical Data - (For Single Source Power Supply) - |
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Low Voltage Connections | . 8 | Copper Wire - | 14 |
Low Voltage Connections | 10 | Electrical Data - (For |
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Fault Codes | 10 | Copper Wire - | 14 |
Heat Relays | 11 | Electrical Data - | 15 |
Comfort Setting Selection | 12 | Electrical Data - (For Single Source Power Supply) - |
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Physical and Electrical Data - Cooling Only (60 Hz) | 12 | Copper Wire - | 15 |
Electrical Data - Cooling Only (60 Hz) | 13 | Electrical Data - (For |
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Conversion Table | 13 | Copper Wire - | 15 |
Electrical Data - | 13 | Air Handler Air Flow Data | 16 |
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SECTION I: GENERAL
The AV single piece air handler provides the flexibility for installation in any upflow, downflow, or horizontal application.
These versatile models may be used for cooling or heat pump operation with or without electric heat.
A BRAND LABEL (available from Distribution) may be applied to the center of the blower access panel on AVG models.
The unit can be positioned for bottom return air in the upflow position, top return air in the downflow position, and right or left return in the hor- izontal position.
Top and side power wiring and control wiring, accessible screw termi- nals for control wiring, easy to install drain connections and electric heaters all combine to make the installation easy, and minimize installa- tion cost.
SECTION II: SAFETY
This is a safety alert symbol. When you see this symbol on labels or in manuals, be alert to the potential for personal
injury.
Understand and pay particular attention to the signal words DANGER, WARNING, or CAUTION.
DANGER indicates an imminently hazardous situation, which, if not avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation, which, if not avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation, which, if not
avoided may result in minor or moderate injury. It is also used to
alert against unsafe practices and hazards involving only property dam- age.
Improper installation may create a condition where the operation of the product could cause personal injury or property damage. Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to this manual for assis- tance or for additional information, consult a qualified contractor, installer or service agency.
This product must be installed in strict compliance with the installation instructions and any applicable local, state, and national codes including, but not limited to building, electrical, and mechanical codes.
FIRE OR ELECTRICAL HAZARD
Failure to follow the safety warnings exactly could result in serious injury, death or property damage.
A fire or electrical hazard may result causing property damage, per- sonal injury or loss of life.
