Resideo L8124A1007 Relay
The Resideo L8124A1007 Triple Aquastat Relay is a specialized immersion-type controller designed for forced hydronic heating systems that integrate domestic hot water service. This Triple Aquastat Relay combines high limit protection, low limit control, and circulator control into a single, vertically mounted unit. Technicians will find the fixed 10-degree high limit differential and the adjustable 10-25 degree low limit differential critical for fine-tuning boiler performance and preventing short-cycling. Engineered with a diaphragm powerhead and a Micro Switch assembly, this relay responds precisely to water temperature changes, maintaining a high limit range of 130-240°F and a low limit range of 110-220°F. The 3-inch insertion well and 1.5-inch insulation depth ensure accurate sensing in oil-fired boilers. For multi-zone applications, this unit facilitates control by pairing with an external R845 relay for each additional zone, providing the reliable switching action necessary for complex residential or light commercial footprints.
Key Benefits- Versatile 3-in-1 Control: Manages high limit safety, low limit maintenance, and circulator operation from a single vertical mount.
- Precise Differential Tuning: Features an adjustable low limit differential (10-25°F) for optimized burner run times and domestic hot water priority.
- Robust Environmental Tolerance: Operates efficiently in 0-95% RH non-condensing environments with a sensing element rated up to 265°F.
- Direct Boiler Integration: Designed for direct immersion with a 3" well, providing immediate response to internal boiler water temperature shifts.
- How do you wire the L8124A1007 for a multi-zone system? For multi-zone control, wire the primary zone to the L8124A1007 and use a separate R845 Relay and circulator for each additional zone to maintain proper isolation.
- What is the proper heat anticipator setting for the thermostat? A 24 Vac thermostat should have the heat anticipator set to 0.2 A to ensure proper cycle timing and avoid relay chatter.
- Can this aquastat be used in high-pressure systems? This unit is rated for a maximum safe operating pressure of 200 psi on the outside of the immersion well.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Resideo L8124A1007 Relay
The Resideo L8124A1007 Triple Aquastat Relay is a specialized immersion-type controller designed for forced hydronic heating systems that integrate domestic hot water service. This Triple Aquastat Relay combines high limit protection, low limit control, and circulator control into a single, vertically mounted unit. Technicians will find the fixed 10-degree high limit differential and the adjustable 10-25 degree low limit differential critical for fine-tuning boiler performance and preventing short-cycling. Engineered with a diaphragm powerhead and a Micro Switch assembly, this relay responds precisely to water temperature changes, maintaining a high limit range of 130-240°F and a low limit range of 110-220°F. The 3-inch insertion well and 1.5-inch insulation depth ensure accurate sensing in oil-fired boilers. For multi-zone applications, this unit facilitates control by pairing with an external R845 relay for each additional zone, providing the reliable switching action necessary for complex residential or light commercial footprints.
Key Benefits- Versatile 3-in-1 Control: Manages high limit safety, low limit maintenance, and circulator operation from a single vertical mount.
- Precise Differential Tuning: Features an adjustable low limit differential (10-25°F) for optimized burner run times and domestic hot water priority.
- Robust Environmental Tolerance: Operates efficiently in 0-95% RH non-condensing environments with a sensing element rated up to 265°F.
- Direct Boiler Integration: Designed for direct immersion with a 3" well, providing immediate response to internal boiler water temperature shifts.
- How do you wire the L8124A1007 for a multi-zone system? For multi-zone control, wire the primary zone to the L8124A1007 and use a separate R845 Relay and circulator for each additional zone to maintain proper isolation.
- What is the proper heat anticipator setting for the thermostat? A 24 Vac thermostat should have the heat anticipator set to 0.2 A to ensure proper cycle timing and avoid relay chatter.
- Can this aquastat be used in high-pressure systems? This unit is rated for a maximum safe operating pressure of 200 psi on the outside of the immersion well.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Resideo L8124A1007 Triple Aquastat Relay is a specialized immersion-type controller designed for forced hydronic heating systems that integrate domestic hot water service. This Triple Aquastat Relay combines high limit protection, low limit control, and circulator control into a single, vertically mounted unit. Technicians will find the fixed 10-degree high limit differential and the adjustable 10-25 degree low limit differential critical for fine-tuning boiler performance and preventing short-cycling. Engineered with a diaphragm powerhead and a Micro Switch assembly, this relay responds precisely to water temperature changes, maintaining a high limit range of 130-240°F and a low limit range of 110-220°F. The 3-inch insertion well and 1.5-inch insulation depth ensure accurate sensing in oil-fired boilers. For multi-zone applications, this unit facilitates control by pairing with an external R845 relay for each additional zone, providing the reliable switching action necessary for complex residential or light commercial footprints.
Key Benefits- Versatile 3-in-1 Control: Manages high limit safety, low limit maintenance, and circulator operation from a single vertical mount.
- Precise Differential Tuning: Features an adjustable low limit differential (10-25°F) for optimized burner run times and domestic hot water priority.
- Robust Environmental Tolerance: Operates efficiently in 0-95% RH non-condensing environments with a sensing element rated up to 265°F.
- Direct Boiler Integration: Designed for direct immersion with a 3" well, providing immediate response to internal boiler water temperature shifts.
- How do you wire the L8124A1007 for a multi-zone system? For multi-zone control, wire the primary zone to the L8124A1007 and use a separate R845 Relay and circulator for each additional zone to maintain proper isolation.
- What is the proper heat anticipator setting for the thermostat? A 24 Vac thermostat should have the heat anticipator set to 0.2 A to ensure proper cycle timing and avoid relay chatter.
- Can this aquastat be used in high-pressure systems? This unit is rated for a maximum safe operating pressure of 200 psi on the outside of the immersion well.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
