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L8148J1009 | Honeywell Aquastat Relay SPST High Limit 8°F Differential 120V
- Regular price
- $284.00
- Sale price
- $284.00
- Regular price
-
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Product Description P/N: L8148J1009
Description
The Honeywell L8148J1009 is a high-limit Aquastat relay designed to control burner operation in hydronic heating systems. This single-pole, single-throw (SPST) control opens the burner circuit when water temperature exceeds the set high limit, providing reliable temperature protection and efficient system operation.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Honeywell |
| Category | Temperature Controls |
| Part Number | L8148J1009 |
| Subcategory | Aquastat Relay |
| Switch Type | SPST (Single Pole Single Throw) |
| Application | High Limit Control for Hydronic Heating |
| Temperature Range | 120°F to 240°F (49°C to 116°C) |
| Differential | Fixed, 8°F |
| Voltage | 120 VAC |
| Frequency | 60 Hz |
| Electrical Ratings (Full Load) | Burner: 7.4 A @ 120 VAC / 3.7 A @ 240 VAC; Circulator: 7.4 A @ 120 VAC / 3.7 A @ 240 VAC |
| Electrical Ratings (Locked Rotor) | Burner: 44.4 A @ 120 VAC / 22.2 A @ 240 VAC; Circulator: 44.4 A @ 120 VAC / 22.2 A @ 240 VAC |
| Anticipator Rating | 0.2 A |
| Mounting Orientation | Vertical or Horizontal |
| Connection Type | Quick-Connect Terminals |
| Capillary Length | 4-1/2 inches |
| Max Pressure | 255 PSI (Immersion Well) |
| Operating Humidity | 0% to 95% (non-condensing) |
| Max Ambient Temperature | 150°F with 1.2A 24V Load / 77°F with 1.4A 24V Load |
| Housing Dimensions (H × W × D) | 6-1/8 in × 4-3/8 in × 3-1/8 in |
| Mounting Style | Immersion Well |
| Transformer Terminals | Included for Remote Low Limit Controller |
| Safety Feature | High-Limit Opens Burner Circuit Only |
| Compliance | UL Listed, CSA Certified |
| Weight | 4.00 lbs (1.81 kg) |
Information About L8148J1009
The L8148J1009 is part of Honeywell’s trusted L8148 Series Aquastat family, designed to provide temperature control and safety shutoff in hydronic heating systems. It acts as a high-limit control that opens the burner circuit when the boiler water temperature exceeds a preset threshold, protecting the system from overheating. The built-in transformer and accessory terminals allow connection of a remote low-limit controller for expanded control flexibility. Featuring a fixed 8°F differential, the unit ensures stable cycling and efficient burner performance. Its rugged construction and compatibility with both vertical and horizontal mounting orientations make it ideal for a variety of boiler applications. The L8148J1009 offers quick-connect terminals for simplified wiring and an immersion-type sensing bulb for precise temperature monitoring.
Key Features:
- High-Limit Temperature Control: Opens burner circuit when temperature exceeds preset limits, ensuring system safety.
- SPST Switching Action: Provides simple, reliable control for burner circuits in hydronic heating systems.
- Fixed 8°F Differential: Maintains consistent system cycling and prevents short cycling.
- Built-In Transformer: Includes accessory terminals for connection to remote low-limit controls or zone systems.
- Dual Mounting Options: Can be mounted vertically or horizontally for flexible installation.
- Quick-Connect Terminals: Simplifies electrical wiring and reduces installation time.
- High Pressure Rating: Withstands up to 255 PSI in immersion well applications for added durability.
- Wide Operating Range: Adjustable from 120°F to 240°F for a variety of heating applications.
- Reliable Flame Safety Control: Automatically interrupts burner operation for overtemperature protection.
- Proven Honeywell Design: Built for long service life and consistent performance in residential and light commercial systems.
The L8148J1009 delivers the reliability and precision required for hydronic heating systems, ensuring safe operation, accurate temperature control, and long-term durability.
Description
The Honeywell L8148J1009 is a high-limit Aquastat relay designed to control burner operation in hydronic heating systems. This single-pole, single-throw (SPST) control opens the burner circuit when water temperature exceeds the set high limit, providing reliable temperature protection and efficient system operation.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Honeywell |
| Category | Temperature Controls |
| Part Number | L8148J1009 |
| Subcategory | Aquastat Relay |
| Switch Type | SPST (Single Pole Single Throw) |
| Application | High Limit Control for Hydronic Heating |
| Temperature Range | 120°F to 240°F (49°C to 116°C) |
| Differential | Fixed, 8°F |
| Voltage | 120 VAC |
| Frequency | 60 Hz |
| Electrical Ratings (Full Load) | Burner: 7.4 A @ 120 VAC / 3.7 A @ 240 VAC; Circulator: 7.4 A @ 120 VAC / 3.7 A @ 240 VAC |
| Electrical Ratings (Locked Rotor) | Burner: 44.4 A @ 120 VAC / 22.2 A @ 240 VAC; Circulator: 44.4 A @ 120 VAC / 22.2 A @ 240 VAC |
| Anticipator Rating | 0.2 A |
| Mounting Orientation | Vertical or Horizontal |
| Connection Type | Quick-Connect Terminals |
| Capillary Length | 4-1/2 inches |
| Max Pressure | 255 PSI (Immersion Well) |
| Operating Humidity | 0% to 95% (non-condensing) |
| Max Ambient Temperature | 150°F with 1.2A 24V Load / 77°F with 1.4A 24V Load |
| Housing Dimensions (H × W × D) | 6-1/8 in × 4-3/8 in × 3-1/8 in |
| Mounting Style | Immersion Well |
| Transformer Terminals | Included for Remote Low Limit Controller |
| Safety Feature | High-Limit Opens Burner Circuit Only |
| Compliance | UL Listed, CSA Certified |
| Weight | 4.00 lbs (1.81 kg) |
Information About L8148J1009
The L8148J1009 is part of Honeywell’s trusted L8148 Series Aquastat family, designed to provide temperature control and safety shutoff in hydronic heating systems. It acts as a high-limit control that opens the burner circuit when the boiler water temperature exceeds a preset threshold, protecting the system from overheating. The built-in transformer and accessory terminals allow connection of a remote low-limit controller for expanded control flexibility. Featuring a fixed 8°F differential, the unit ensures stable cycling and efficient burner performance. Its rugged construction and compatibility with both vertical and horizontal mounting orientations make it ideal for a variety of boiler applications. The L8148J1009 offers quick-connect terminals for simplified wiring and an immersion-type sensing bulb for precise temperature monitoring.
Key Features:
- High-Limit Temperature Control: Opens burner circuit when temperature exceeds preset limits, ensuring system safety.
- SPST Switching Action: Provides simple, reliable control for burner circuits in hydronic heating systems.
- Fixed 8°F Differential: Maintains consistent system cycling and prevents short cycling.
- Built-In Transformer: Includes accessory terminals for connection to remote low-limit controls or zone systems.
- Dual Mounting Options: Can be mounted vertically or horizontally for flexible installation.
- Quick-Connect Terminals: Simplifies electrical wiring and reduces installation time.
- High Pressure Rating: Withstands up to 255 PSI in immersion well applications for added durability.
- Wide Operating Range: Adjustable from 120°F to 240°F for a variety of heating applications.
- Reliable Flame Safety Control: Automatically interrupts burner operation for overtemperature protection.
- Proven Honeywell Design: Built for long service life and consistent performance in residential and light commercial systems.
The L8148J1009 delivers the reliability and precision required for hydronic heating systems, ensuring safe operation, accurate temperature control, and long-term durability.