



L8124A1007 | Honeywell Triple Aquastat Relay 120VAC Vertical Case for Oil Applications
- Regular price
- $462.00
- Sale price
- $462.00
- Regular price
-
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Product Description P/N: L8124A1007
Description
The Honeywell L8124A1007 Triple Aquastat Relay provides precise temperature and burner control in oil-fired hydronic heating systems. Operating at 120 VAC, this vertical-case relay combines high-limit, low-limit, and circulator control functions in one compact, reliable device.
Technical Specifications
Condition | New/Never Used Surplus |
Brand | Honeywell |
Category | HVAC Controls |
Part Number | L8124A1007 |
Subcategory | Aquastat Relay |
Type | Triple Aquastat |
Application | Oil-Fired Hydronic Heating Systems |
Voltage Rating | 120 VAC |
Frequency | 60 Hz |
Control Functions | High Limit, Low Limit, Circulator Control |
Mounting Orientation | Vertical Case |
Insertion Length | 3 in. Temperature Probe |
Switch Type | SPST and DPST Integrated Relays |
Temperature Range (High Limit) | Typically Adjustable 140°F–240°F |
Temperature Range (Low Limit) | Typically Adjustable 110°F–220°F |
Differential Adjustment | 10°F–25°F (Adjustable) |
Case Material | Metal |
Operating Voltage to Thermostat | 24 VAC Output |
Electrical Connection | Screw Terminals |
Dimensions (in.) | 6 1/8 H × 4 3/8 W × 3 1/16 D |
Mounting Type | Immersion Well |
Enclosure Rating | Indoor Use |
Compatible Fuels | Oil |
Weight | 3.00 lbs |
Information About L8124A1007
The L8124A1007 is part of Honeywell’s renowned Aquastat line, specifically engineered for oil-fired hydronic systems requiring integrated temperature and circulator management. This triple-function control maintains boiler temperature, activates the circulator, and controls burner operation to optimize system efficiency and safety. Designed for vertical mounting, it includes a 3-inch immersion sensing element for accurate temperature monitoring and reliable heat response. Its durable metal housing, easy terminal access, and adjustable high/low limit settings make it a trusted choice for residential and commercial boiler applications.
Key Features:
- Triple Aquastat Functionality: Combines high-limit, low-limit, and circulator control in one compact relay unit.
- Precision Temperature Regulation: Maintains accurate boiler water temperature for efficient heating system performance.
- Integrated Burner and Circulator Control: Coordinates system components to prevent overheating and improve fuel economy.
- Vertical Case Design: Space-efficient configuration suited for standard vertical immersion well installations.
- Adjustable Temperature Limits: Allows fine-tuning of high and low temperature settings with differential control for customized operation.
- Durable Construction: Rugged metal enclosure ensures long service life and protection against mechanical wear.
- Simplified Wiring: Screw terminal connections provide easy installation and maintenance access.
- Oil Application Specific: Designed for use in oil-fired hydronic boiler systems for dependable performance in demanding environments.
The L8124A1007 delivers the reliability and precision required for efficient temperature management and safe operation in oil-fired heating systems.
Description
The Honeywell L8124A1007 Triple Aquastat Relay provides precise temperature and burner control in oil-fired hydronic heating systems. Operating at 120 VAC, this vertical-case relay combines high-limit, low-limit, and circulator control functions in one compact, reliable device.
Technical Specifications
Condition | New/Never Used Surplus |
Brand | Honeywell |
Category | HVAC Controls |
Part Number | L8124A1007 |
Subcategory | Aquastat Relay |
Type | Triple Aquastat |
Application | Oil-Fired Hydronic Heating Systems |
Voltage Rating | 120 VAC |
Frequency | 60 Hz |
Control Functions | High Limit, Low Limit, Circulator Control |
Mounting Orientation | Vertical Case |
Insertion Length | 3 in. Temperature Probe |
Switch Type | SPST and DPST Integrated Relays |
Temperature Range (High Limit) | Typically Adjustable 140°F–240°F |
Temperature Range (Low Limit) | Typically Adjustable 110°F–220°F |
Differential Adjustment | 10°F–25°F (Adjustable) |
Case Material | Metal |
Operating Voltage to Thermostat | 24 VAC Output |
Electrical Connection | Screw Terminals |
Dimensions (in.) | 6 1/8 H × 4 3/8 W × 3 1/16 D |
Mounting Type | Immersion Well |
Enclosure Rating | Indoor Use |
Compatible Fuels | Oil |
Weight | 3.00 lbs |
Information About L8124A1007
The L8124A1007 is part of Honeywell’s renowned Aquastat line, specifically engineered for oil-fired hydronic systems requiring integrated temperature and circulator management. This triple-function control maintains boiler temperature, activates the circulator, and controls burner operation to optimize system efficiency and safety. Designed for vertical mounting, it includes a 3-inch immersion sensing element for accurate temperature monitoring and reliable heat response. Its durable metal housing, easy terminal access, and adjustable high/low limit settings make it a trusted choice for residential and commercial boiler applications.
Key Features:
- Triple Aquastat Functionality: Combines high-limit, low-limit, and circulator control in one compact relay unit.
- Precision Temperature Regulation: Maintains accurate boiler water temperature for efficient heating system performance.
- Integrated Burner and Circulator Control: Coordinates system components to prevent overheating and improve fuel economy.
- Vertical Case Design: Space-efficient configuration suited for standard vertical immersion well installations.
- Adjustable Temperature Limits: Allows fine-tuning of high and low temperature settings with differential control for customized operation.
- Durable Construction: Rugged metal enclosure ensures long service life and protection against mechanical wear.
- Simplified Wiring: Screw terminal connections provide easy installation and maintenance access.
- Oil Application Specific: Designed for use in oil-fired hydronic boiler systems for dependable performance in demanding environments.
The L8124A1007 delivers the reliability and precision required for efficient temperature management and safe operation in oil-fired heating systems.

