1. 서론
The Hydrolevel Model 3250 Fuel Smart Hydrostat is an advanced control unit designed for oil boilers. It integrates temperature limit, low water cut-off (LWCO), and boiler reset functionalities to optimize boiler performance and fuel efficiency. This manual provides essential information for the safe and effective installation, operation, and maintenance of your Model 3250 Hydrostat.
The Model 3250 is engineered to be a universal replacement for many common aquastat models, offering both cold start and tankless coil operation. Its design focuses on ease of use with dial-type limit settings and industry-standard wiring designations.
2. 안전 정보
경고: 부적절한 설치, 조정, 개조, 정비 또는 유지 관리는 재산 피해, 부상 또는 사망을 초래할 수 있습니다. 이 장비를 설치하거나 정비하기 전에 이 지침을 자세히 읽으십시오.
- Always disconnect power to the boiler before performing any installation, wiring, or maintenance.
- 설치 및 서비스는 자격을 갖춘 난방 기술자가 수행해야 합니다.
- 모든 배선이 지역 및 국가 전기 규정을 준수하는지 확인하세요.
- Do not operate the boiler if any part of the control is damaged.
- This device operates on 230 Volts. Exercise extreme caution.
3. 설정 및 설치
The Hydrolevel Model 3250 is designed for straightforward installation, often serving as a direct replacement for older aquastat models. It does not require an outdoor sensor.
3.1 장착
The unit can be surface mounted or wall mounted. Ensure the mounting location is secure and allows for proper wiring connections and access to controls.
3.2 배선
Follow industry-standard wiring designations. Refer to the wiring diagram provided with the product packaging for specific connections. The Model 3250 works with virtually any boiler.
Important Note on LWCO:
- When installed on an existing standard immersion well, the unit provides only temperature and reset functionality.
- For automatic Low Water Cut-Off (LWCO) functionality, the Model 3250 must be installed on an ElectroWell.
3.3 초기 설정
After installation, set the number of heating zones using the dial control. The unit provides cold start and tankless coil operation capabilities.

Figure 1: Hydrolevel Model 3250 Fuel Smart Hydrostat. This image shows the front view of the control unit, typically black with a display and control dials.
4. 운영
The Model 3250 is designed to optimize boiler performance and fuel consumption through its intelligent features.
4.1 Temperature Limit Settings
Adjust the high and low temperature limits using the dial controls. These settings determine the operating range of your boiler water temperature.
4.2 Thermal Targeting Feature
The Thermal Targeting feature is factory set to the OFF position. When activated, this feature dynamically adjusts the boiler water temperature based on changes in the heat load. This helps to lower the boiler temperature, saving fuel without compromising comfort.
Consult the detailed wiring and operation guide included with your product for instructions on activating and configuring Thermal Targeting.
4.3 Cold Start and Warm Start
The unit supports both cold start and warm start operations, allowing flexibility based on your boiler system's requirements and desired energy efficiency.
5. 유지관리
Regular maintenance ensures the longevity and optimal performance of your Hydrolevel Model 3250 Hydrostat and the entire boiler system.
- 연례 검사: Have a qualified technician inspect the control unit and boiler system annually.
- 센서 점검: If LWCO functionality is active, ensure the sensor in the ElectroWell is clean and making good contact. Over time, mineral deposits can affect sensor performance. If a low water condition warning occurs despite adequate water, the sensor may need cleaning.
- 배선 무결성: 정기적으로 모든 배선 연결부의 조임 상태와 마모 또는 부식 여부를 점검하십시오.
- 청소: Keep the exterior of the control unit clean and free from dust and debris. Use a soft, dry cloth. Do not use liquid cleaners.
6. 문제 해결
This section addresses common issues you might encounter with your Model 3250 Hydrostat.
6.1 Boiler Not Firing / No Heat
- 전원 확인: Ensure the boiler and control unit have power. Check circuit breakers.
- Thermostat Call: 온도 조절 장치가 열을 요구하는지 확인하세요.
- 수위: If LWCO is active, check the boiler water level. A low water condition will prevent the boiler from firing.
- 제한 설정: Ensure temperature limit settings are appropriate for your system.
6.2 Erratic Temperature Readings / Short Cycling
- 센서 접촉: Ensure the temperature sensor is properly seated in the immersion well and making good contact.
- 배선: Check for loose or corroded wiring connections to the sensor and control unit.
- 시스템 내 공기: Air pockets in the boiler system can cause erratic temperature readings. Bleed the system if necessary.
6.3 Low Water Condition Warning (False Alarm)
If the LWCO activates but the boiler has sufficient water:
- 센서 청소: The LWCO sensor in the ElectroWell may have mineral deposits. Disconnect power, remove the sensor, and carefully clean any buildup from the metal spring or probes. Reinstall and restore power.
- 배선: Inspect wiring to the ElectroWell for damage or loose connections.
If troubleshooting steps do not resolve the issue, contact a qualified heating technician.
7. 사양
| 특징 | 세부 사항 |
|---|---|
| 상표 | 수위 |
| 모델명 | 3250 플러스 |
| 컨트롤러 유형 | Mechanical knob, Dial Control |
| 특징 | Thermal Targeting |
| 색상 | 검은색 |
| 특정 용도 | Boiler, Heat Pump |
| 온도 제어 유형 | 수동 |
| 연결 기술 | RF |
| 전원 | 코드식 전기 |
| 권tage | 230 볼트 |
| 재료 | 금속, 플라스틱 |
| 디스플레이 유형 | 액정표시장치 |
| 장착 유형 | Surface Mount/Wall Mount |
| 품목 무게 | 2 파운드 |
| 제품 치수 | 1 x 1 x 1 인치(대략) |
| 한국어: | 642277482501 |
8. 보증 및 지원
For specific warranty information regarding your Hydrolevel Model 3250 Fuel Smart Hydrostat, please refer to the warranty card included with your product packaging or visit the official Hydrolevel web사이트. 보증 조건은 일반적으로 구매일로부터 특정 기간 동안 제조상의 결함에 대한 보증을 제공합니다.
For technical support, service, or to inquire about replacement parts, please contact Hydrolevel customer service directly. Contact information can usually be found on the product packaging or the manufacturer's web대지.
온라인 리소스: For additional information, FAQs, and support documents, visit the Hydrolevel official web대지.





