
SAN89-S Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $29.99 | Condition is New – Open box, Watts SAN89S Low Water Level Switch Assembly, shipping cost = $10.00 | 99.9% |
![]() | $39.99 | Condition is New – Open box, Watts SAN89S Low Water Level Switch Assembly, shipping cost = $10.00 | 99.9% |
![]() | $69.99 | Condition is New – Open box, Watts SAN89S Low Water Level Switch Assembly, shipping cost = $10.00 | 99.9% |
![]() | $69.99 | Condition is New – Open box, Watts SAN89S Low Water Level Switch Assembly, shipping cost = $10.00 | 99.9% |

Introducing the Watts WaterTechnologies' San eighty-nine series (San89-S and San89D) 15 Amp Tempering Valve Control Switch. This switch is meticulously designed to provide reliable and efficient temperature control for your water heating system.
The San89-S is a single-pole, normally open (SPNO) switch, while the San89D is a single-pole, double-throw (SPDT) switch. Both models are built to deliver flawless performance in residential and light commercial applications. They are engineered to meet the demanding requirements of the National Electrical Code (NEC) and the Canadian Electrical Code (CEC), ensuring your safety and peace of mind.
Each switch features a robust, corrosion-resistant design. The brass body is not only durable but also resistant to harsh environments, making it suitable for wet locations. The contact terminals are gold-plated to ensure a secure and long-lasting connection, reducing the risk of arcing and minimizing electrical contact resistance.
The San89 series switches are easy to install and operate. They come with a clear, easy-to-read label on the front panel, indicating the "On" position. The switches are rated for a maximum operating temperature of 250 F (121 C) and a maximum voltage of 240 volts.
The San89-S and San89D switches are compatible with a wide range of Watts WaterTechnologies' tempering valves, including the Sanitarium and Sanitarium Plus series. They are designed to work seamlessly with these valves, ensuring precise temperature control and optimal energy efficiency.
In conclusion, the Watts WaterTechnologies' San eighty-nine series (San89-S and San89D) 15 Amp Tempering Valve Control Switches are essential components for any water heating system. They offer superior performance, durability, and ease of use, making them an excellent choice for both residential and light commercial applications.
The Watts Water Technologies' Sanitan San89-S and San89-D series water heaters are known for their advanced features and energy efficiency. However, like any other appliance, they come with their own set of pros and cons.
Pros:1. Energy Efficiency: These water heaters are Energy Star certified, which means they meet the U.S. Environmental Protection Agency's energy efficiency guidelines. They also have a high energy factor (EF) rating, which indicates their ability to convert input energy into usable energy.
2. Advanced Features: The San89-S and San89-D series water heaters come with several advanced features such as a digital display, automatic temperature adjustment, and a self-diagnostic system. These features make it easier for homeowners to monitor and maintain their water heater.
3. Long Warranty: Watts offers a 12-year limited warranty on the tank and a 5-year limited warranty on parts for these water heaters. This warranty is longer than what most competitors offer, providing peace of mind for homeowners.
Cons:1. High Initial Cost: The Sanitan San89-S and San89-D series water heaters have a higher initial cost compared to standard water heaters. This higher upfront cost may be a deterrent for some homeowners.
2. Complex Installation: Due to their advanced features, these water heaters have a more complex installation process than standard water heaters. This may require the assistance of a professional plumber, adding to the overall cost.
3. Limited Capacity: These water heaters have a lower capacity than some other models in their class. This may not be suitable for larger households with higher hot water demands.
Conclusion:The Watts Water Technologies' Sanitan San89-S and San89-D series water heaters offer advanced features, energy efficiency, and a long warranty. However, they come with a higher initial cost, a complex installation process, and a limited capacity. Ultimately, the decision to buy one of these water heaters depends on the homeowner's hot water needs, budget, and preference for advanced features.
Recommendation:If you are a homeowner with a smaller household and a higher budget, the Watts Water Technologies' Sanitan San89-S or San89-D series water heater may be a great option for you due to its advanced features, energy efficiency, and long warranty. However, if you have a larger household with higher hot water demands or a limited budget, you may want to consider other options with a higher capacity and lower initial cost.
Details:
New old stock. Shipping only to 48 states USA.
specifications maxohvac:
- brand: Watts
- mpn: San89-s
- model: San89d
- part type: Switch
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
returns maxohvac:
- policy: no returns
seller maxohvac:
- city: manhasset, new york
- rating: 100.0%
- # reviews: 499
payments maxohvac:
- other
- credit card: mastercard
- wallet: apple-pay
offer maxohvac:
- availability: in stock
- in stock #: 4
- prices: $29.99–$69.99
- item condition: New – Open box
- options: ship-to-home
- started: october 2, 2025
- sold #: 14
shipping maxohvac:
- class: expedited
- carrier: usps
- type: calculated
- service: usps priority mail
- transit: 5-12 days



