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L8148E1281 | Honeywell SPST Immersion Aquastat 140–240°F
- Regular price
- $457.00
- Sale price
- $457.00
- Regular price
-
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Product Description P/N: L8148E1281
Description
The Honeywell L8148E1281 is a single-pole, single-throw (SPST) immersion-type Aquastat designed to control water temperature in hydronic heating systems. It provides precise temperature regulation within a 140°F to 240°F range, ensuring efficient boiler operation and consistent heat delivery.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Honeywell |
| Category | Temperature Controls |
| Part Number | L8148E1281 |
| Subcategory | Aquastat Relay |
| Product Type | SPST Immersion Aquastat |
| Temperature Range | 140°F to 240°F (60°C to 115°C) |
| Switch Type | SPST (Single Pole Single Throw) |
| Application | Hydronic Heating Systems, Boilers, Water Heaters |
| Control Function | High Limit and Circulator Control |
| Mounting Type | Immersion Well Mount |
| Sensor Type | Immersion Temperature Bulb |
| Voltage Rating | 120 VAC |
| Frequency | 60 Hz |
| Electrical Rating | Suitable for line-voltage burner circuits |
| Compatibility | Works with 24V Thermostat Circuits |
| Protection Feature | High Limit Control with Safety Cutoff |
| Dimensions | Standard Honeywell Aquastat Size |
| Weight | 4.00 lbs |
Information About L8148E1281
The L8148E1281 belongs to Honeywell’s L8148 Series of immersion-type Aquastat relays designed for precise temperature control in hydronic heating applications. It acts as both a temperature limit and circulator control, managing the boiler operation based on water temperature. The SPST switching configuration allows it to control the burner circuit directly while interfacing with low-voltage thermostats. With an operating range of 140°F to 240°F, it ensures optimal system performance and protection from overheating. The immersion-type sensor provides fast response and accurate temperature sensing, while its rugged construction guarantees long-term reliability. Commonly used in boilers and water heaters, this control maintains consistent comfort levels and efficient heat exchange in residential and light commercial systems.
Key Features:
- Wide Temperature Range: Adjustable control from 140°F to 240°F for flexible heating system operation.
- SPST Switching Design: Provides reliable burner circuit control for hydronic and boiler applications.
- Immersion-Type Sensor: Offers precise temperature sensing directly within the water system for accurate response.
- High-Limit Protection: Automatically shuts off burner operation when temperature exceeds set limits, enhancing safety.
- Compatible with 24V Thermostats: Integrates easily with standard low-voltage thermostat circuits for simple installation.
- Durable Steel Housing: Protects internal components from moisture and corrosion for long-lasting performance.
- Easy Installation: Fits standard immersion wells, making replacement or retrofit straightforward.
- Stable Operation: Maintains consistent boiler cycling and circulator performance for energy-efficient heating.
- Versatile Application Range: Suitable for use in residential and commercial hydronic systems, water heaters, and heat exchangers.
- Proven Reliability: Built to Honeywell’s high standards for precision temperature control and mechanical durability.
The L8148E1281 delivers the reliability and precision required for efficient temperature regulation and system safety in hydronic heating installations.
Description
The Honeywell L8148E1281 is a single-pole, single-throw (SPST) immersion-type Aquastat designed to control water temperature in hydronic heating systems. It provides precise temperature regulation within a 140°F to 240°F range, ensuring efficient boiler operation and consistent heat delivery.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Honeywell |
| Category | Temperature Controls |
| Part Number | L8148E1281 |
| Subcategory | Aquastat Relay |
| Product Type | SPST Immersion Aquastat |
| Temperature Range | 140°F to 240°F (60°C to 115°C) |
| Switch Type | SPST (Single Pole Single Throw) |
| Application | Hydronic Heating Systems, Boilers, Water Heaters |
| Control Function | High Limit and Circulator Control |
| Mounting Type | Immersion Well Mount |
| Sensor Type | Immersion Temperature Bulb |
| Voltage Rating | 120 VAC |
| Frequency | 60 Hz |
| Electrical Rating | Suitable for line-voltage burner circuits |
| Compatibility | Works with 24V Thermostat Circuits |
| Protection Feature | High Limit Control with Safety Cutoff |
| Dimensions | Standard Honeywell Aquastat Size |
| Weight | 4.00 lbs |
Information About L8148E1281
The L8148E1281 belongs to Honeywell’s L8148 Series of immersion-type Aquastat relays designed for precise temperature control in hydronic heating applications. It acts as both a temperature limit and circulator control, managing the boiler operation based on water temperature. The SPST switching configuration allows it to control the burner circuit directly while interfacing with low-voltage thermostats. With an operating range of 140°F to 240°F, it ensures optimal system performance and protection from overheating. The immersion-type sensor provides fast response and accurate temperature sensing, while its rugged construction guarantees long-term reliability. Commonly used in boilers and water heaters, this control maintains consistent comfort levels and efficient heat exchange in residential and light commercial systems.
Key Features:
- Wide Temperature Range: Adjustable control from 140°F to 240°F for flexible heating system operation.
- SPST Switching Design: Provides reliable burner circuit control for hydronic and boiler applications.
- Immersion-Type Sensor: Offers precise temperature sensing directly within the water system for accurate response.
- High-Limit Protection: Automatically shuts off burner operation when temperature exceeds set limits, enhancing safety.
- Compatible with 24V Thermostats: Integrates easily with standard low-voltage thermostat circuits for simple installation.
- Durable Steel Housing: Protects internal components from moisture and corrosion for long-lasting performance.
- Easy Installation: Fits standard immersion wells, making replacement or retrofit straightforward.
- Stable Operation: Maintains consistent boiler cycling and circulator performance for energy-efficient heating.
- Versatile Application Range: Suitable for use in residential and commercial hydronic systems, water heaters, and heat exchangers.
- Proven Reliability: Built to Honeywell’s high standards for precision temperature control and mechanical durability.
The L8148E1281 delivers the reliability and precision required for efficient temperature regulation and system safety in hydronic heating installations.