
305904 Comparison
| photo | price | summary | rating |
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![]() | $19.95 | Condition is Used, HVAC Air Conditioning T-O-D Lennox 111002748 Heat Sequencer 305904 USED, shipping cost = $6.40 | ![]() |



The T-O-D 305904 14SXH22 H24V Delay Relay Heat Sequencer with model number 111002748 A1714 is a versatile and advanced heating control system designed for various applications. This sequencer is equipped with a 14-stage heat delay function, enabling it to control the sequential heating of up to 14 separate electrical loads, like heating elements, radiant floors, or water heaters, among others. Each stage can be programmed with individual time delays to optimize energy usage, provide uniform temperature distribution, and ensure maximum comfort and efficiency.
This heat sequencer features a 24-volt direct current (VDC) power supply, allowing it to operate on a low-voltage power source. It also incorporates an AC 230V/115V selectable input voltage, enabling it to adapt to different electrical grid configurations and broaden its range of applications. With its robust construction and high-quality components, this delay relay can handle up to 10 amps per stage, providing sufficient capacity for multiple loads.
The T-O-D 305904 14SXH22 H24V Delay Relay Heat Sequencer includes a user-friendly control panel with six easily accessible push-buttons for setting up, programming, and adjusting the different stages. It also comes with a clear, easy-to-read backlit LCD display that shows crucial information such as the current stage, programming status, and error codes.
This sequencer offers numerous benefits, including improved energy efficiency, enhanced temperature control, extended equipment lifetime, and optimized system performance. It also features a sealed contact design, protecting it from moisture and other environmental hazards, ensuring reliable operation even in harsh conditions.
In summary, the T-O-D 305904 14SXH22 H24V Delay Relay Heat Sequencer with model number 111002748 A1714 is an advanced, fully-featured heating control system designed to provide optimal temperature control, energy savings, and fault detection for a wide range of heating applications. Its 14-stage heat delay function, 24VDC power supply, and AC 230V/115V selectable input voltage make it a versatile and adaptable choice for residential, commercial, and industrial projects alike. With its robust construction, high-quality components, and user-friendly interface, this sequencer is an excellent investment to ensure comfort and efficiency in your heating systems.
Pros and Cons of Buying TOBYLINE T-OD 305904 14SXH22 H24V Delay Relay Heat Sequencer (111002748 A1714)
Introduction:The TOBYLINE T-OD 305904 14SXH22 H24V Delay Relay Heat Sequencer (111002748 A1714) is a temperature control device designed to manage heating elements in a sequence to maintain optimal temperature levels. If you're considering purchasing this product, it's essential to weigh its advantages and disadvantages before making a decision. In this analysis, we will explore both the pros and cons of the TOBYLINE T-OD 305904 14SXH22 H24V Delay Relay Heat Sequencer (111002748 A1714).
Pros:1. Temperature Control: This device offers precise temperature control, ensuring that heating elements are turned on and off in a specific sequence to maintain the optimal temperature, improving system efficiency and reducing energy waste.
2. Electrical Newlife Protection: The TOBYLINE T-OD 305904 14SXH22 H24V Delay Relay Heat Sequencer (111002748 A1714) includes an electrical Newlife protection feature that prolongs the life of heating elements by turning them off once the desired temperature is reached, preventing unnecessary wear and tear.
3. Easy Installation: The device comes with a plug-and-play design, making it easy to install and integrate into existing heating systems, allowing for quick setup and minimizing downtime.
4. Flexible: This heat sequencer can be used in various applications, including HVAC systems, water heating, and industrial processes, making it a versatile solution for managing temperature control needs in various industries.
Cons:1. Complex Wiring: The TOBYLINE T-OD 305904 14SXH22 H24V Delay Relay Heat Sequencer (111002748 A1714) may require more extensive wiring efforts compared to other solutions due to the additional sensors and controls required for temperature sequencing.
2. Cost: This device may be more expensive compared to traditional thermostats. Still, the precise temperature control, Newlife protection features, and flexibility it offers make it a cost-effective option in the long run for applications where temperature control is crucial.
3. Limited Capacity for Individual Heating Elements: This device may not be suitable for managing a large number of heating elements, as it can only accommodate a certain number depending on the model. In such cases, multiple sequencers might be required, potentially increasing cost and complexity.
Conclusion:The TOBYLINE T-OD 305904 14SXH22 H24V Delay Relay Heat Sequencer (111002748 A1714) offers precise temperature control, Newlife protection, and flexibility, making it an excellent choice for applications that require temperature management and prolonged heating element life. The potential downsides include complex wiring and a more significant upfront cost. However, the benefits of improved system efficiency and energy savings outweigh these drawbacks for many users.
Recommendation:If you have a requirement for precise temperature control, managing multiple heating elements, or extending the life of your heating system, the TOBYLINE T-OD 305904 14SXH22 H24V Delay Relay Heat Sequencer (111002748 A1714) is an excellent investment. It may require a more extensive installation process and a larger upfront investment, but the long-term benefits of improved system efficiency and reduced energy waste make it a cost-effective solution for many applications.
Details:
This is a used, T-o-d therm-o-disc 14SXH22 H24V 305904 time delay relay heat sequencer, 111002748 A1714 1-2 h1-20 c40-110 3/4/5/6 h20-60 c1-30, Inc# bb4 2025.01.
specifications maxohvac:
- brand: T-o-d
- mpn: 305904
returns maxohvac:
- method: money back
- paid by: seller
- time: 30 days
- policy: returns accepted
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
shipping maxohvac:
- transit: 5-10 days
- service: usps ground advantage, usps priority mail, ups next day air
- class: standard, expedited, one-day
- type: fixed
- carrier: usps, ups
seller maxohvac:
- rating: 100.0%
- # reviews: 10744
- city: vancouver, washington
payments maxohvac:
- credit card: diners-club
- wallet: google-pay
- other
offer maxohvac:
- availability: in stock
- price: $19.95
- item condition: Used
- in stock #: 1
- started: january 1, 2025
- options: ship-to-home
- sold #: 22
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