1. Safety Information
Read all safety warnings and instructions carefully before installing, operating, or performing maintenance on this evaporator coil. Failure to follow these instructions can result in property damage, personal injury, or death.
- Professional Installation Required: This equipment must be installed and serviced by qualified, experienced technicians. Improper installation, adjustment, alteration, service, or maintenance can cause injury or property damage.
- Electrical Safety: Ensure all power to the indoor and outdoor units is disconnected before performing any service or maintenance. Lock out and tag out electrical disconnects.
- Refrigerant Handling (R-32): This unit uses R-32 refrigerant. R-32 is a mildly flammable refrigerant. Only qualified personnel trained in handling R-32 refrigerant should service this unit. Ensure proper ventilation and avoid ignition sources during service.
- Sharp Edges: Wear appropriate personal protective equipment, including gloves, to prevent injury from sharp metal edges.
- Heavy Equipment: This unit is heavy. Use proper lifting techniques and equipment to prevent injury.
2. Product Overview
The Goodman CAPTA6030C3 is a 3.5-5 TON 21-inch wide R-32 Upflow/Downflow Cased All-Aluminum Evaporator Coil. It is designed for efficient heat transfer in residential and commercial HVAC systems, optimized for use with R-32 refrigerant.
Key Features:
- AHRI certified for performance.
- All-Aluminum evaporator coil construction.
- Factory-installed thermal expansion valves (TXV) for cooling and heat pump applications.
- Integrated leak detector for R-32 refrigerant.
- DecaBDE-free thermoplastic drain pan with secondary drain connections.
- Foil-faced insulation to reduce cabinet condensation.
- Galvanized, leather grain-embossed finish for durability.
- Rust-resistant thermoplastic drain pan with low water-retention design.
- Designed for vertical (upflow/downflow) applications.

An image showing the Goodman CAPTA6030C3 Evaporator Coil, highlighting its compact design and connections.
3. Setup and Installation
Installation must be performed by a qualified HVAC technician. This section provides a general overview of the installation process.
3.1 Pre-Installation Checks
- Verify that the evaporator coil model matches the system requirements (tonnage, refrigerant type, airflow configuration).
- Inspect the unit for any shipping damage. Report any damage immediately.
- Ensure adequate space for installation and future maintenance, including clearances for airflow and access panels.
3.2 Mounting and Ductwork Connection
- Position the coil in the designated upflow or downflow configuration within the plenum or furnace cabinet.
- Ensure the coil is level to allow for proper condensate drainage.
- Secure the coil to the ductwork using appropriate fasteners and seal all connections to prevent air leaks.
3.3 Condensate Drain Connection
- Connect the primary drain line to the drain pan. Ensure a continuous downward slope for proper drainage.
- Install a P-trap in the primary drain line as close to the coil as possible.
- Connect the secondary drain line (if required by local codes) to an area where condensate overflow will be noticeable.
- Test the drain system for leaks and proper flow.
3.4 Refrigerant Line Connection
- Connect the liquid and suction lines from the outdoor unit to the evaporator coil's stub connections.
- Use proper brazing techniques with nitrogen flow to prevent oxidation.
- Evacuate the refrigerant lines to a deep vacuum (typically 500 microns or less) to remove air and moisture.
- Charge the system with the correct amount of R-32 refrigerant according to the outdoor unit manufacturer's specifications.
3.5 Leak Detector Installation and Wiring
- The R-32 sensor is designed for the life span of the coil. Ensure it is properly connected and functional.
- Refer to the specific wiring diagram for the leak detector and its integration with the HVAC system controls.
4. Operating Instructions
Once properly installed and charged, the evaporator coil operates in conjunction with the outdoor condensing unit and indoor blower to provide cooling or heating (if part of a heat pump system).
4.1 System Startup
- After installation and charging, restore power to the indoor and outdoor units.
- Set the thermostat to the desired mode (Cool or Heat) and temperature.
- Monitor the system for proper operation, including airflow, temperature differential, and absence of unusual noises.
4.2 Normal Operation
- The evaporator coil will cool or heat the air passing over it, depending on the system's operating mode.
- Condensate will form on the coil during cooling operation and drain away through the primary drain line.
- The integrated R-32 leak detector continuously monitors for refrigerant leaks.
An informational video discussing facts and common misconceptions about R-32 refrigerant, which is used in this evaporator coil. This video provides context on R-32's global adoption and environmental profile.
5. Maintenance
Regular maintenance is crucial for the efficient and reliable operation of your evaporator coil. All maintenance should be performed by a qualified HVAC technician.
5.1 Air Filter Replacement
- Ensure the air filter in your indoor air handler or furnace is replaced regularly (typically every 1-3 months, depending on usage and environment). A clean filter protects the evaporator coil from dirt and debris.
5.2 Coil Cleaning
- Annually, or as needed, have a technician inspect and clean the evaporator coil. Dirt and grime on the coil can reduce efficiency and airflow.
- Specialized coil cleaning solutions and brushes should be used to avoid damaging the aluminum fins.
5.3 Condensate Drain Pan and Line Cleaning
- Inspect the drain pan and line for blockages (e.g., algae, sludge) during annual maintenance.
- Clean the drain pan and flush the drain line with a suitable solution (e.g., diluted bleach) to prevent clogs and water overflow.
5.4 Leak Detector Check
- During routine service, the technician should verify the functionality of the R-32 leak detector.
6. Troubleshooting
If you experience issues with your HVAC system, consult a qualified HVAC technician. This section provides general guidance for common problems related to the evaporator coil.
6.1 Poor Cooling/Heating Performance
- Check Air Filter: A dirty air filter can severely restrict airflow over the coil, reducing efficiency.
- Dirty Coil: A buildup of dirt on the evaporator coil can hinder heat transfer. Professional cleaning may be required.
- Refrigerant Issues: Low refrigerant charge (due to a leak) or incorrect charge can impact performance. The R-32 leak detector may indicate a problem.
- Blower Fan: Ensure the indoor blower fan is operating correctly and providing adequate airflow.
6.2 Water Leaks Around Indoor Unit
- Clogged Drain Line: The most common cause. Inspect and clear the primary drain line and P-trap.
- Blocked Secondary Drain: If the primary drain is clogged, water may overflow into the secondary drain pan.
- Improper Slope: Ensure the drain line has a continuous downward slope.
- Cracked Drain Pan: Inspect the thermoplastic drain pan for any cracks or damage.
6.3 Unusual Noises
- Airflow Noise: Can be caused by dirty filters, blocked ducts, or improper fan speed.
- Refrigerant Noise: Hissing or gurgling sounds can indicate refrigerant issues (e.g., low charge, restrictions).
6.4 Leak Detector Alarm
- If the R-32 leak detector activates an alarm, it indicates a potential refrigerant leak. Immediately contact a qualified HVAC technician for inspection and repair.
7. Specifications
The following table provides detailed dimensions and connection specifications for various CAPTA models, including the CAPTA6030C3.
| Model | Cabinet Dimensions | Nominal Tons | Connection | Ship Weight (LBS) | |||
|---|---|---|---|---|---|---|---|
| W | D | H | Liquid | Suction | |||
| CAPTA1818A3 | 14" | 21" | 18" | 1½ | ⅜" | ¾" | 30 |
| CAPTA1818B3 | 17¾" | 21" | 18" | 1½ | ⅜" | ¾" | 35 |
| CAPTA2422A3 | 14" | 21" | 22" | 1½-2 | ⅜" | ¾" | 37 |
| CAPTA2422B3 | 17¾" | 21" | 22" | 1½-2 | ⅜" | ¾" | 40 |
| CAPTA2422C3 | 21" | 21" | 22" | 1½-2 | ⅜" | ⅞" | 43 |
| CAPTA3022A3 | 14" | 21" | 22" | 2-2½ | ⅜" | ⅞" | 37 |
| CAPTA3022B3 | 17¾" | 21" | 22" | 2-2½ | ⅜" | ⅞" | 40 |
| CAPTA3022C3 | 21" | 21" | 22" | 2-2½ | ⅜" | ⅞" | 43 |
| CAPTA3026B3 | 17¾" | 21" | 26" | 1½-2½ | ⅜" | ⅞" | 46 |
| CAPTA3026C3 | 21" | 21" | 26" | 1½-2½ | ⅜" | ⅞" | 51 |
| CAPTA3626B3 | 17¾" | 21" | 26" | 2-3 | ⅜" | ⅞" | 48 |
| CAPTA3626C3 | 21" | 21" | 26" | 2-3 | ⅜" | ⅞" | 51 |
| CAPTA4230C3 | 21" | 21" | 30" | 2½-3½ | ⅜" | ⅞" | 66 |
| CAPTA4230D3 | 24¾" | 21" | 30" | 2½-3½ | ⅜" | ⅞" | 70 |
| CAPTA6030C3 | 21" | 21" | 30" | 3½-5 | ⅜" | ⅞" | 66 |
| CAPTA6030D3 | 24¾" | 21" | 30" | 3½-5 | ⅜" | ⅞" | 70 |
Note: For a properly matched system and piston sizing information, refer to Daikin piston kit chart of the corresponding Daikin outdoor unit.

A detailed diagram illustrating the internal components and external dimensions of the Goodman CAPTA series evaporator coils, including liquid and suction line connections.
7.1 Additional Specifications for CAPTA6030C3
- Brand: Goodman
- Model Number: CAPTA6030C3
- Capacity: 3.5-5 Tons (Nominal)
- Refrigerant: R-32
- Coil Type: All-Aluminum
- Application: Upflow/Downflow (Vertical)
- Special Feature: Rust Resistant, Leak Detector, Factory-installed TXV
- Item Weight: 66 Pounds
- Included Components: Factory-installed thermal expansion valves, Foil-faced insulation, Galvanized, leather grain-embossed finish, R-32 sensor, Rust resistant, thermoplastic drain pan, Single front access panel, Standardized copper suction tube stub length, UV-resistant drain pan, leak detector.
8. Warranty Information
This Goodman evaporator coil comes with a Limited Warranty. Specific terms and conditions of the warranty, including duration and coverage, are provided with the product documentation at the time of purchase. It is essential to register your product and retain proof of purchase for warranty claims.
For detailed warranty information, please refer to the official Goodman warranty certificate included with your unit or visit the Goodman website. Improper installation or service by unqualified personnel may void the warranty.
9. Support
For technical assistance, troubleshooting beyond this manual, or service inquiries, please contact a qualified HVAC professional. Goodman recommends using a certified technician for all installation, maintenance, and repair needs to ensure safety and optimal performance.
You can also visit the official Goodman website for additional resources, product documentation, and to locate authorized service providers in your area.