Installation Guide
Tools Needed:
- Refrigeration manifold gauge set
- Vacuum pump
- Leak detector
- Tube bender and cutter
- Electrical multimeter
- Torque wrench set
- Insulation materials
Step-by-Step Installation
- Site Assessment: Evaluate installation location for proper airflow, accessibility, and structural support requirements.
- Unit Placement: Position outdoor condenser unit on level pad with minimum clearance of 24 inches on all sides for airflow.
- Refrigerant Line Installation: Install properly sized copper lines with appropriate insulation on suction line to prevent condensation.
- Electrical Connection: Connect to dedicated circuit with proper voltage and amperage as specified in unit data plate.
- Indoor Unit Installation: Mount evaporator coil and air handler according to manufacturer specifications with proper drainage.
- System Evacuation: Evacuate system to 500 microns or less to remove moisture and non-condensables.
- Refrigerant Charging: Charge system with specified refrigerant type and quantity using superheat/subcooling method.
- System Commissioning: Start system, verify proper operation, check temperature differentials, and calibrate controls.
Specifications
| Model Series | 24VNA9 Infinity® Series |
| System Type | Variable Speed Heat Pump |
| Cooling Capacity | 2-5 Tons (24,000-60,000 BTU/hr) |
| Heating Capacity | 2-5 Tons (24,000-60,000 BTU/hr) |
| SEER Rating | Up to 26 SEER |
| HSPF Rating | Up to 13 HSPF |
| Sound Level (Outdoor) | As low as 55 dB |
| Refrigerant Type | R-410A |
| Voltage Requirements | 208-230V, 1 Phase, 60Hz |
| Maximum Operating Ambient | 115°F (Cooling) / -5°F (Heating) |
| Dimensions (Outdoor Unit) | 35 x 35 x 31 inches |
| Compressor Type | Two-Stage Scroll with Sound Insulation |
Warranty Information
- Base Warranty: 10 years on compressor and heat exchanger
- Parts Warranty: 10 years on functional parts
- Labor Warranty: 1 year standard, extended options available
- Registration Required: Must register within 90 days of installation
For warranty service, contact Carrier Customer Service at 1-800-227-7437 or visit Carrier.com
Key Features
Greenspeed® Intelligence
Proprietary technology that delivers precise comfort by adjusting capacity in 1% increments from 25% to 100% of system capability.
Infinity® Control System
Advanced touchscreen thermostat with adaptive intelligence that learns your preferences and automatically adjusts for optimal comfort and efficiency.
Quiet Operation
Sound levels as low as 55 dB through advanced compressor insulation, fan blade design, and vibration isolation technology.
Cold Climate Heat Pump
Specialized technology maintains heating capacity down to -5°F without backup heat, providing efficient operation in extreme conditions.
Smart Evaporator Coil
Enhanced surface design improves heat transfer efficiency while reducing airflow resistance for better overall system performance.
Corrosion Protection
Blue Fin™ aluminum fin coating and powder paint finish protect against salt spray and harsh environmental conditions.
System Components Explained
Variable Speed Compressor
Two-stage scroll compressor with sound insulation jacket for quiet, efficient operation
ECM Blower Motor
Electronically Commutated Motor provides precise airflow control with reduced energy consumption
Microchannel Coil
Aluminum microchannel condenser coil improves heat transfer with less refrigerant charge
Desuperheater Option
Available water heating option captures waste heat for domestic hot water production
Sound Insulation System
Compressor blanket and fan isolation system reduces operational noise
Smart Diagnostics
Built-in system monitoring with fault code storage and performance tracking
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| System not cooling/heating | Power loss, thermostat issue, refrigerant leak | Check circuit breakers, verify thermostat settings, check refrigerant charge |
| Insufficient airflow | Dirty filters, blocked vents, blower motor issue | Replace filters, clear obstructions, check blower operation |
| Unusual noises | Loose components, failing motor, refrigerant issues | Tighten mounting hardware, inspect motors, check refrigerant levels |
| Frequent cycling | Oversized unit, thermostat location, dirty coils | Verify proper sizing, relocate thermostat, clean evaporator/condenser coils |
| High energy consumption | Dirty coils, low refrigerant, duct leaks | Clean coils, check charge, seal ductwork |
| Water leakage | Clogged drain line, improper slope, frozen coil | Clear drain line, ensure proper drainage slope, check airflow |
Error Codes
- E0: Pressure switch open - Check refrigerant charge and switches
- E1: Pressure switch closed - Verify switch operation
- E2: Indoor coil sensor fault - Check sensor and wiring
- E3: Outdoor coil sensor fault - Check sensor and wiring
- E4: Outdoor air sensor fault - Check sensor and wiring
- E5: Compressor overload - Check electrical connections and compressor
- E6: High pressure cutout - Check condenser airflow and refrigerant charge
- E7: Low pressure cutout - Check for restrictions and refrigerant charge
- E8: Communication error - Check wiring between indoor and outdoor units
- E9: Reversing valve fault - Check valve operation and wiring
Manual Downloads
Infinity® Series Manuals
24VNA9
Variable Speed Heat Pump
24VNA6
Two-Stage Heat Pump
24ANB7
Variable Speed AC Unit
24ABB3
Single Stage AC Unit
Performance Series Manuals
25VNA8
Variable Speed Heat Pump
25HNB9
Variable Speed Gas Furnace
25HCB6
Two-Stage Gas Furnace
25HCC5
Single Stage Gas Furnace
Control System Manuals
SYSTXCCITC01-B
Infinity Touch Control
SYSTXCCUID01-V
Infinity System Control
TP-PRH01
Programmable Thermostat
TP-WEM01
Wi-Fi Enabled Module