1. Муқаддима
This manual provides essential information for the proper handling, installation, and maintenance of the Service First OEM Start Capacitor, model CAP02328_ver1. This component is designed for use in Trane and American Standard HVAC systems.
A start capacitor provides a temporary electrical boost to the motor during startup, helping it overcome initial inertia and reach operating speed quickly. It is a critical component for the efficient and reliable operation of many electrical motors, particularly in HVAC applications.
2. Маълумот оид ба бехатарӣ
WARNING: Electrical Hazard. Risk of electric shock or injury.
- Always disconnect power to the unit before attempting any installation, maintenance, or troubleshooting.
- Capacitors can store a dangerous electrical charge even after power is disconnected. Always discharge the capacitor before handling. Use a properly insulated screwdriver with a metal shaft to short the terminals, or use a capacitor discharge tool.
- Таҷҳизоти муҳофизатии шахсии мувофиқ (PPE), аз ҷумла дастпӯшакҳои изолятсияшуда ва айнаки муҳофизатӣ пӯшед.
- Installation and service should only be performed by qualified and licensed HVAC technicians.
- Ensure the replacement capacitor matches the specifications (uF/MFD and VAC) of the original component.
3. Мушаххасоти маҳсулот
| Мушаххасоти | Арзиш |
|---|---|
| Рақами модел | CAP02328_ver1 |
| Бренд | Service First (OEM Component by CAPCOM) |
| Иқтидори иқтидор | 196 uF (MFD) +/- 5 uF |
| Ҷилдиtage Рейтинг | 330 VAC |
| Шакл | Давра |
| Вижагиҳо | Includes Resistor |
| Материал | Мис |
| Вазни ашё | 1 фунт |
| Аввалин дастрас | 19 августи соли 2020 |

Figure 3.1: Approximate dimensions of the capacitor. Note: Dimensions are subject to change without notice.
4. Насб кардан ва иваз кардан
This section outlines the general procedure for replacing a start capacitor. Always refer to the specific service manual for your HVAC unit for detailed instructions and safety precautions.
- Қатъи барқ: Locate the main power switch for the HVAC unit (typically at the outdoor condenser unit or indoor furnace/air handler) and turn it OFF. For added safety, turn off the corresponding circuit breaker at the electrical panel. Verify power is off using a voltagсанҷанда
- Access Capacitor: Remove the access panel(s) on the HVAC unit to expose the electrical components, including the capacitor.
- Конденсатори холӣкунӣ: Before touching the capacitor, discharge any stored electrical energy. Use an insulated screwdriver with a metal shaft to short the terminals of the old capacitor. Hold the screwdriver by the insulated handle and touch the metal shaft across both terminals simultaneously. A spark may occur. Repeat this process several times to ensure full discharge.
- Note Wiring: Carefully observe and note the wiring connections to the old capacitor. Take a photograph or draw a diagram of the wiring before disconnecting any wires. Capacitors typically have two terminals for start capacitors.
- Remove Old Capacitor: Disconnect the wires from the old capacitor. Loosen any clamps or straps holding the capacitor in place and remove it from the unit.
- Install New Capacitor: Place the new Service First OEM Start Capacitor (model CAP02328_ver1) into the mounting bracket. Secure it with clamps or straps if applicable.
- Пайваст кардани ноқилҳо: Reconnect the wires to the new capacitor exactly as they were connected to the old one, referring to your diagram or photograph. Ensure connections are secure.
- Бозсозӣ ва озмоиш: Replace all access panels. Restore power to the HVAC unit at the circuit breaker and main power switch. Test the unit's operation to ensure the motor starts correctly.

Figure 4.1: Service First OEM Start Capacitor (CAP02328_ver1) and packaging.

Figure 4.2: Close-up of the capacitor showing specifications label.
5. Амалиёт
The Service First OEM Start Capacitor (CAP02328_ver1) is an electrical component designed to provide a temporary surge of current to the motor's start winding during the initial phase of operation. This surge creates a stronger magnetic field, allowing the motor to overcome its inertia and begin rotating. Once the motor reaches approximately 75% of its operating speed, a centrifugal switch (or electronic equivalent) typically disconnects the start capacitor from the circuit, and the motor continues to run on its run winding.
This capacitor is specifically rated at 196 uF MFD and 330 VAC, ensuring compatibility with systems requiring these specifications for proper motor startup.
6. Нигоҳдорӣ
Start capacitors are generally sealed units and do not require routine maintenance. However, periodic inspection during HVAC system servicing is recommended. A qualified technician should check for:
- Зарари ҷисмонӣ: Look for signs of swelling, bulging, leaks, or corrosion on the capacitor casing. These are indicators of failure.
- Аз ҳад зиёд гармшавӣ: Check for discoloration or burnt smells around the capacitor, which can indicate overheating.
- Proper Function: A technician can test the capacitance (uF/MFD) and ESR (Equivalent Series Resistance) of the capacitor using a specialized meter to ensure it is within specifications.
If any issues are detected, the capacitor should be replaced by a qualified professional.
7. Баррасии мушкилот
A failing start capacitor can manifest in several ways. If you experience any of the following symptoms, it may indicate a capacitor issue. Always consult a qualified HVAC technician for diagnosis and repair.
| Аломат | Possible Cause (Capacitor Related) | Action (Professional Recommended) |
|---|---|---|
| Motor hums but does not start (or starts slowly) | Weak or failed start capacitor | Test and replace capacitor if faulty. |
| Circuit breaker trips on startup | Shorted capacitor | Test and replace capacitor. |
| Visible bulging, leaking, or burning on capacitor | Нокомии конденсатор | Immediate replacement required. |
| Мотор гарм кор мекунад | Capacitor not disconnecting or incorrect capacitance | Test capacitor and motor circuit. |
Муҳим: Do not attempt to repair a faulty capacitor. Always replace it with a new one that matches the original specifications.

Расми 7.1: боло view of the capacitor terminals and resistor.
8. Мутобиқат ва ивазкунӣ
The Service First OEM Start Capacitor, model CAP02328_ver1 (CPT02328 / CPT-2328), is a direct replacement for various Trane and American Standard units and supersedes several older part numbers. It is crucial to verify that the required capacitance (196 uF MFD) and voltage (330 VAC) match your existing capacitor or system requirements.
This capacitor replaces or supersedes the following part numbers:
- CPT0950, CPT950, CPT-0950, CPT00950
- CPT2328, CPT02328, CPT-2328
- CPT01808, CPT1808, CPT-1808
- CPT00320, CPT-320, CPT0320
- 175-216, 176-216
- And other start capacitors with matching specifications (196 uF MFD, 330 VAC).
Commonly found in the following American Standard & Trane Units (partial list):
- 2A6H8030B1000AA, 2A6H8030B1000BA, 2A6H8030C1000AA
- 2A6H8036B1000BA, 2A6H8036C1000AA
- 2A6H8048B1000BA, 2A6H8048C1000AA
- 2A6H8060B1000AA, 2A6H8060B1000BA, 2A6H8060C1000AA
- 2A7A8030A1000AA, 2A7A8030B1000BA, 2A7A8030C1000AA
- 2A7A8036B1000BA, 2A7A8036C1000AA
- 2A7A8048B1000BA, 2A7A8048C1000AA
- 2A7A8060A1000AA, 2A7A8060B1000AA, 2A7A8060C1000AA
- 2TTB3042A1000NA, 2TTB3042A1S00AA, 2TTB3042A1SE0AA
- 2TTZ9030A1000AA, 2TTZ9030A1000AB, 2TTZ9030B1000AA
- 2TTZ9030B1000BA, 2TTZ9030C1000AA, 2TTZ9036B1000BA
- 2TTZ9036C1000AA, 2TTZ9048B1000BA, 2TTZ9048C1000AA
- 2TTZ9060A1000AA, 2TTZ9060A1000AB, 2TTZ9060B1000AA
- 2TTZ9060B1000BA, 2TTZ9060C1000AA, 2TWZ9030A1000AA
- 2TWZ9030A1000AB, 2TWZ9030A1000AC, 2TWZ9030B1000AA
- 2TWZ9030B1000BA, 2TWZ9030C1000AA, 2TWZ9036B1000BA
- 2TWZ9036C1000AA, 2TWZ9048B1000BA, 2TWZ9048C1000AA
- 2TWZ9060A1000AA, 2TWZ9060A1000AC, 2TWZ9060B1000AA
- 4A6Z0060A1000AA, 4A6Z0060A1000BA, 4A6Z0060A1000CA
- 4A7A3036D1000AA, 4A7A3036D1000AB, 4A7B3036D1000AA
- 4A7M3036A1000AA, 4A7Z0024A1000AA, 4A7Z0024A1000BA
- 4A7Z0024A1000BB, 4A7Z0024A1000CA, 4A7Z0024A1000CB
- 4A7Z0036A1000AA, 4A7Z0036A1000BA, 4A7Z0036A1000BB
- 4A7Z0036A1000CA, 4A7Z0036B1000AA, 4A7Z0048A1000AA
- 4A7Z0048A1000BA, 4A7Z0048A1000CA, 4A7Z0048B1000AA
- 4A7Z0060A1000AA, 4A7Z0060A1000BA
For a complete list of compatible units, refer to the product listing or consult with a qualified HVAC technician.
9. Кафолат ва дастгирӣ
For information regarding warranty coverage for the Service First OEM Start Capacitor (model CAP02328_ver1), please refer to the original purchase documentation or contact the vendor directly. Warranty terms typically cover manufacturing defects.
For technical support or assistance with installation and troubleshooting, it is recommended to contact a qualified and licensed HVAC professional. Service First does not provide direct end-user technical support for component installation.
For general product inquiries, you may visit the Service First brand page on Amazon.





