
HPSR103 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $149.95 | Condition is New, OEM Honeywell Resideo 3-Zone Switching Relay Replaces HPSR103 1839 32333295-002, FREE SHIPPING | ![]() |
![]() | $129.99 | Condition is New, Honeywell HPSR103 Hydronic Pro 3 Zone Switching Relay 120VAC 60Hz, shipping cost = $25.78 | 100.0% |
![]() | $165.00 | Condition is New, Honeywell HPSR103 Hydronic Three Zone Switching Relay Panel, 120V, FREE SHIPPING | 99.4% |
![]() | $165.00 | Condition is New, Honeywell HPSR103 Hydronic Three Zone Switching Relay Panel, 120V, shipping cost = $14.46 | 100.0% |
![]() | $231.96 | Condition is New, Honeywell HPSR103 Three Zone Switching Relay, FREE SHIPPING | 98.5% |
![]() | $235.68 | Top Pick! Condition is New, HONEYWELL HPSR103/U Hydronic Relay 3 Zone 120V Switching Relay, FREE SHIPPING | ![]() |
![]() | $237.42 | Top Pick! Condition is New, Honeywell HPSR103 Three Zone Zoning Panel 120V, FREE SHIPPING | ![]() |
![]() | $427.90 | Condition is New, Honeywell HPSR103/U 3 Zone Circulator Relay 15A w/ Priority, shipping cost = $28.65 | 97.7% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $110.00 | Condition is Open box, New open box Honeywell HPSR103 Hydronic Pro 3 Zone Switching Relay 120VAC 60Hz, FREE SHIPPING | 98.4% |
![]() | $112.00 | Top Pick! Condition is Open box, Honeywell HPSR103 Hydronic Pro 3 Zone Switching Relay 120VAC 60Hz, FREE SHIPPING | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $189.99 | Condition is New – Open box, Honeywell HPSR103 Hydronic Three Zone Switching Relay Panel, 120V, FREE SHIPPING | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $109.99 | Condition is Used, Honeywell HPSR103 Hydronic Three Zone Switching Relay Panel, 120V, shipping cost = $18.30 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $185.00 | Condition is New other (see details), Honeywell HPSR103 Three Zone Switching Relay, shipping cost = $25.78 | 100.0% |

The Honeywell HPSR103 Hydronic Pro Zone Switching Relay is a versatile and reliable solution for heating and cooling applications that require zoning control. This 120VAC, 60Hz switching relay is designed to work with hydronic heating systems, providing precise temperature control for individual zones to optimize comfort and energy efficiency.
The HPSR103 is a zone valve relay, meaning it is responsible for controlling the operation of zone valves in a hydronic heating system. It features three normally open (NO) contacts and one normally closed (NC) contact for each of its three zones. These contacts allow for the connection of various components such as zone valves, temperature sensors, and transformers.
The relay is designed with a robust construction, ensuring durability and long-lasting performance. It is housed in a compact, weather-resistant enclosure, making it suitable for both indoor and outdoor installations. The relay also includes a built-in heater element, which provides frost protection for the temperature sensors and other components in colder environments.
The HPSR103 is easily configurable to meet the specific needs of your heating and cooling system. It offers multiple control modes, including temperature rise, temperature fall, and time-based control. This flexibility allows for customized temperature settings for each zone, ensuring optimal comfort while minimizing energy usage.
The relay is compatible with a wide range of temperature sensors, including both thermistors and thermocouples. It also supports various wiring configurations, including series and parallel wiring for temperature sensors.
The Honeywell HPSR103 Hydronic Pro Zone Switching Relay is an essential component for any hydronic heating system that requires zoning control. Its robust construction, versatility, and ease of configuration make it a reliable and efficient choice for optimizing temperature control and energy savings.
The Honeywell HPSR103 Hydronic Pro Zone Switching Relay is a 120VAC, 60Hz device designed for use in heating applications to control zone valves. Here are some potential pros and cons of purchasing this relay:
Pros:1. Zone Control: The HPSR103 allows for zone control in hydronic heating systems, which can help improve energy efficiency and comfort by allowing temperature control in different areas of the building.
2. Reliability: Honeywell is a well-known brand in the HVAC industry and has a reputation for producing reliable products.
3. Easy Installation: The relay comes with easy-to-follow instructions and can be installed relatively easily by a DIYer or a professional.
4. Adjustable Setpoint: The relay has an adjustable setpoint, which allows for fine-tuning of the temperature in each zone.
5. Cost-Effective: Compared to other zone control systems, the HPSR103 is a cost-effective solution for smaller hydronic heating systems.
Cons:1. Limited Capacity: The HPSR103 is designed for use in small to medium-sized hydronic heating systems, and may not be suitable for larger systems.
2. Single Zone: Each relay can only control one zone, which may require the purchase of multiple relays for larger systems.
3. Manual Adjustments: The setpoint adjustments on the relay must be made manually, which can be time-consuming and may require access to the relay for each adjustment.
Conclusion:The Honeywell HPSR103 Hydronic Pro Zone Switching Relay is a reliable and cost-effective solution for small to medium-sized hydronic heating systems that require zone control. Its ease of installation and adjustability make it a popular choice among DIYers and professionals alike. However, its limited capacity and requirement for manual adjustments may make it less suitable for larger systems or those seeking more advanced features.
Recommendation:If you have a small to medium-sized hydronic heating system and are looking for a cost-effective zone control solution, the Honeywell HPSR103 Hydronic Pro Zone Switching Relay is a solid choice. However, if you have a larger system or require more advanced features, you may want to consider other options such as digital zone controllers or centralized control systems.
Details:
Honeywell HPSR103 hydronic pro 3 zone switching relay 120vac 60hz.
specifications centrafurn:
- brand: Honeywell
- mpn: Hpsr103
- model: Fits Hpsr103 1839 32333295-002
- type: 3-zone Switching Relay
- upc: 085267686457
general centrafurn:
- category: Home & Garden > Heating, Air > Cooling Systems > Central Furnaces
offer centrafurn:
- availability: in stock
- options: ship-to-home
- prices: $109.99–$427.90
- item condition:
- New
- Open box
- New – Open box
- Used
- New other (see details)
- started: june 11, 2025
- in stock #: 5
- sold #: 17
shipping centrafurn:
- type: calculated
- class: expedited
- carrier: usps
- transit: 3-9 days
- service: usps priority mail
returns centrafurn:
- policy: no returns
payments centrafurn:
- other
- wallet: google-pay
- credit card: visa
seller centrafurn:
- # reviews: 1007
- city: east hartford, connecticut
- rating: 100.0%
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