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The Therm-O-Disc Heating Sequencer A1712 E-143 H30-90 C1-35 H24V, manufactured by Therma Disc, is a versatile and efficient heating solution designed for various applications. This sequencer is engineered to provide precise temperature control and sequencing capabilities, making it an excellent choice for commercial and industrial environments.

The heart of this heating system is the Therm-O-Disc, a thermostat designed with a unique disc element. The disc element is a robust and durable component that offers superior temperature stability and faster response times compared to traditional bimetallic thermostats. The H30-90 variant of the disc element can handle high wattage loads, making it suitable for larger heating applications.

The sequencer comes with four independent channels, labeled C1 to C4. Each channel can be programmed to turn on and off at specific temperatures, allowing for precise temperature control in different zones or areas. The channels can also be set up in various temperature sequences, providing flexibility in managing the heating process.

The Therm-O-Disc Heating Sequencer A1712 E-143 H30-90 C1-35 H24V is designed to operate with a 24V AC input voltage. It is also compatible with a wide range of heating elements, including immersion heaters, convectors, and fan heaters, making it a versatile solution for various heating applications.

The sequencer is housed in a sturdy and compact enclosure, which is both waterproof and dust-tight, ensuring reliable operation in harsh environments. The front panel of the enclosure features clear and easy-to-read LED displays for each channel, indicating the temperature settings and status. The sequencer also comes with a user-friendly control panel, allowing for simple and intuitive programming of the temperature settings and sequences.

In summary, the Therm-O-Disc Heating Sequencer A1712 E-143 H30-90 C1-35 H24V is a robust and versatile heating solution that offers precise temperature control and sequencing capabilities. Its unique disc element technology provides faster response times and superior temperature stability, making it an excellent choice for various commercial and industrial heating applications.

The Therm-O-Disc Heating Sequencer A1712 E-143 H30-90 C1-35 H24V (model number 305425) is a programmable heating controller designed for use with underfloor heating systems. Here are some potential pros and cons that may help you make a decision about purchasing this product.

1. Customizable heating settings: The Therm-O-Disc heating sequencer allows you to program individual room temperatures and heating times, providing greater control over your underfloor heating system.

2. Energy efficiency: By enabling you to set different temperatures for different areas and times, this heating controller can help you save energy and reduce your heating costs.

3. Compatible with various floor types: The Therm-O-Disc heating sequencer is suitable for use with a range of floor types, including concrete, timber, and screed, making it a versatile option for different heating applications.

4. Easy to install: The heating sequencer is relatively easy to install, with clear instructions provided in the user manual.

1. Limited connectivity options: The Therm-O-Disc heating sequencer does not offer Wi-Fi or Bluetooth connectivity, which may be a drawback for some users who prefer to control their heating system remotely.

2. Requires additional components: In order to use this heating sequencer, you will need to purchase additional components such as sensors and actuators, which can add to the overall cost of the system.

3. Limited display information: The heating sequencer's display only shows basic information, such as room temperature and mode, and does not offer advanced data analysis or troubleshooting features.

In conclusion, the Therm-O-Disc Heating Sequencer A1712 E-143 H30-90 C1-35 H24V offers customizable heating settings, energy efficiency, and compatibility with various floor types. However, it lacks advanced connectivity options and may require additional components for installation. Ultimately, if you value precise temperature control and energy savings, this heating sequencer may be a worthwhile investment. If you prefer remote access or advanced display features, you may want to consider other options.

If you have a underfloor heating system and are looking for a programmable heating controller that offers customizable heating settings and energy efficiency, the Therm-O-Disc Heating Sequencer A1712 E-143 H30-90 C1-35 H24V (model number 305425) could be a good option for you. However, if you require advanced connectivity features or prefer a more advanced display, you may want to consider other models on the market. Ultimately, the decision depends on your specific heating needs and preferences.

Details:

About this item. Variable drive certified by Trane. Nate certified. This is a used Therm-o-Disc heating sequencer 305425 A1712 E-143 H30-90 C1-35 H24V.

Universal refrigerant license. Duct cleaning certified.

specifications maxohvac:

• brand: Therm O Disc
• mpn: 305425
• model: H30-90 C1-35 H24v
• type: 24 Vac Sequencer
• unit type: Unit

seller maxohvac:

• city: north port, florida
• rating: 100.0%
• # reviews: 3309

returns maxohvac:

• method: money back
• policy: returns accepted
• paid by: seller
• time: 30 days

payments maxohvac:

• credit card: Discover
• other
• wallet: paypal

shipping maxohvac:

• class: standard, expedited
• service: usps ground advantage, usps priority mail
• transit: 4-8 days
• carrier: usps
• type: fixed

general maxohvac:

• category: Business & Industrial > Hvac Refrigeration

offer maxohvac:

• prices: $13.90–$22.99
• item condition: Used
• availability: in stock
• started: march 12, 2026
• sold #: 7
• in stock #: 5
• options: ship-to-home

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