1. Увод
This user manual provides essential information for the safe and efficient installation, operation, and maintenance of your Nidec US Motors 1279.25HP Packaged Terminal AC Heat Pump Motor. Please read this manual thoroughly before attempting to install or operate the motor. Retain this manual for future reference.
This motor is designed for use in packaged terminal air conditioner (PTAC) units, offering reliable performance with its permanent split capacitor design and automatic overload protection.
2. Безбедносне информације
WARNING: Electrical shock hazard. Always disconnect power before installing, servicing, or cleaning this motor. Installation and service should only be performed by qualified personnel.
- Уверите се да се током инсталације поштују сви локални и национални електрични прописи.
- Проверите да ли је залиха волtagе одговара номиналној снази мотораtagе (208В или 230В).
- Do not operate the motor if it is damaged or if any electrical connections are loose.
- The motor is equipped with automatic overload protection. If the motor stops unexpectedly, allow it to cool before attempting to restart. Investigate the cause of the overload.
- Држите руке и одећу даље од покретних делова током рада.
3. Производ је готовview
The Nidec US Motors 1279.25HP motor is a robust and efficient component for your PTAC system. It features a permanent split capacitor (PSC) design for reliable starting and continuous operation.

Image showing the Nidec US Motors 1279.25HP Packaged Terminal AC Heat Pump Motor, highlighting its compact design and electrical connections.
Кључне карактеристике:
- Коњске снаге: КСНУМКС / КСНУМКС КС
- брзина: 1625 RPM (2-Speed capable)
- Волtage: 208-230V, 1 Phase
- тренутно: 1.4 Amps
- Shaft Dimensions: 9.5" x 1/2" x 9.5" (Shaft height 3.0")
- ротација: Counter-Clockwise (CCW) lead end
- пречник: 5 инча
- Motor Case Length: 4.062 инча
- Лежајеви: Лежајеви рукава
- Прилог: Open Air Over
- изолација: Класа Б
- Температура околине: Ночьу 40°Ц
- Води: 36 инча
- Includes capacitor for operation.
4. Подешавање и инсталација
Proper installation is crucial for the motor's performance and longevity. Refer to the PTAC unit's specific installation guidelines in conjunction with these instructions.
4.1 Монтажа
- Уверите се да је површина за монтажу стабилна и без вибрација.
- Mount the motor securely using appropriate fasteners for its 42Y Frame.
- Verify that the motor shaft is properly aligned with the driven component (e.g., fan blade) to prevent undue stress on the bearings.
- Ensure adequate airflow around the motor for cooling, as it is an Open Air Over enclosure type.
4.2 Електричне везе
- DISCONNECT ALL POWER to the PTAC unit before making any electrical connections.
- Identify the motor's lead wires (36 inches long) and the corresponding terminals on the PTAC unit's control board.
- Connect the motor to a 208V or 230V, 1-phase power supply as indicated on the motor's nameplate and the PTAC unit's wiring diagram.
- Ensure all connections are tight and insulated to prevent short circuits.
- Confirm the capacitor is correctly wired according to the motor's wiring diagram.
- After wiring, double-check all connections before restoring power.
5. Упутство за употребу
This motor is designed for continuous duty operation within a packaged terminal air conditioner. Its operation is typically controlled by the PTAC unit's thermostat and control system.
- Once installed and wired correctly, restore power to the PTAC unit.
- Set the PTAC unit to the desired operating mode (e.g., fan, heat, cool).
- The motor will start and operate at 1625 RPM. If the PTAC unit supports 2-speed operation, the motor will switch speeds as commanded by the unit's control system.
- Monitor the motor during its initial operation for any unusual noises, vibrations, or overheating. If any issues are observed, immediately disconnect power and refer to the troubleshooting section.
6. Одржавање
The Nidec US Motors 1279.25HP motor is designed for low maintenance. Regular inspection and cleaning will help ensure its long-term reliability.
6.1 Рутинска инспекција
- месечно: Visually inspect the motor for any signs of physical damage, corrosion, or loose connections.
- Квартално: Check for excessive dust or debris accumulation on the motor's exterior, especially around the ventilation openings.
- Годишње: Verify that the mounting bolts are secure and that the shaft remains properly aligned.
6.2 Чишћење
- DISCONNECT ALL POWER before cleaning the motor.
- Use a soft brush or compressed air to remove dust and debris from the motor's exterior and ventilation openings.
- Do not use water or liquid cleaners directly on the motor.
6.3 Лежајеви
This motor uses sleeve bearings, which are typically self-lubricating and do not require additional lubrication under normal operating conditions.
КСНУМКС. Решавање проблема
If you encounter issues with your motor, refer to the following table for common problems and solutions. Always disconnect power before performing any troubleshooting steps.
| Проблем | Могући узрок | Решење |
|---|---|---|
| Мотор се не покреће | Нема напајања Нетачно ожичење Неисправан кондензатор Искључена је заштита од преоптерећења | Check power source and circuit breaker Проверите ожичење у односу на дијаграм Test or replace capacitor Allow motor to cool, check for obstructions |
| Мотор се прегрева | Недовољна вентилација Стање преоптерећења Висока температура околине | Ensure clear airflow around motor Reduce load or check for binding Verify ambient temperature is within 40°C limit |
| Прекомерна бука или вибрација | Лоосе моунтинг Misaligned shaft Оштећени лежајеви | Затегните монтажне завртње Realign shaft and driven component Контактирајте квалификовано сервисно особље |
If the problem persists after attempting these solutions, contact qualified service personnel or Nidec customer support.
8. Спецификације
| Атрибут | Валуе |
|---|---|
| Бранд | Нидец |
| Број модела | 1279.25ХП |
| Парт Нумбер | K048CLJ1126011B |
| Хорсеповер | 0.25 КС (1/4 КС) |
| Брзина | 1625 РПМ |
| Волtage | 208В, 230В |
| Фаза | 1 Фаза |
| Цуррент | 1.4 Amps |
| Фраме | 42Y Frame |
| Димензије осовине | 9.5" x 1/2" x 9.5" |
| Висина вратила | 3.0" |
| Ротација | CCW Lead End |
| Пречник мотора | 5 инча |
| Motor Case Length | 4.062 инча |
| Лежајеви | Слееве |
| Енцлосуре | Open Air Over |
| Класа изолације | B |
| Температура околине | Ночьу 40°Ц |
| Дужина жице | 36 инча |
| Тежина артикла | 18 фунти |
| УПЦ / ГТИН | 663001635345 |
| ASIN | B076FD7Q2N |
9. Гаранција и подршка
9.1 Информације о гаранцији
This Nidec US Motors 1279.25HP motor comes with a 1 година гаранције од датума куповине. Ова гаранција покрива недостатке у материјалу и изради при нормалној употреби и сервисирању. Молимо вас да сачувате доказ о куповини за потребе подношења захтева за гаранцију.
The warranty does not cover damage resulting from improper installation, misuse, neglect, unauthorized repairs, or acts of nature.
9.2 Корисничка подршка
For technical assistance, warranty claims, or to inquire about replacement parts, please contact Nidec customer support. Refer to the official Nidec website or your product documentation for the most current contact information.
When contacting support, please have your motor's model number (1279.25HP) and part number (K048CLJ1126011B) readily available.