Resideo L8148E1265 Relay
The Resideo L8148E1265 is a professional-grade immersion-type high limit aquastat relay tailored for residential and light commercial hydronic heating systems. Engineered for vertical mounting, this Tradeline series controller manages both the burner and circulator motors, providing essential high limit protection within an operating temperature range of 180°F to 240°F. Operating on 120 Vac, the unit features SPST switching action and a fixed differential of 15°F to maintain precise boiler thermal cycles. For modern installations, the integrated Molex plug simplifies the connection to an automatic vent damper, while its 4 1/2-inch capillary ensures accurate sensing in various immersion well depths. Whether you are performing a new installation or a field replacement, this unit serves as the direct replacement for L8148E1281/B, maintaining the high electrical ratings required for 7.4A full-load burner and circulator control. Its robust construction and UL certification make it a standard choice for contractors focusing on reliability and safe system commissioning.
Key Benefits for Technicians:
- Simplified Integration: Factory-installed Molex plug provides a plug-and-play interface for vent dampers, reducing field wiring time.
- Broad Compatibility: Serves as a versatile 120V solution for hydronic boilers, supporting 24 Vac thermostats with a 0.2A anticipator setting.
- Enhanced Performance: Includes heat-conductive compound to ensure optimal thermal transfer between the immersion well and the bulb.
- Flexible Installation: Vertical mount design with compact case dimensions is ideal for tight mechanical rooms and varied insulation depths from 1 1/2 to 3 inches.
- High Amperage Capacity: Rated for up to 44.4A locked rotor at 120 Vac, providing the durability needed for heavy-duty burner and pump startups.
Common Technical Questions:
Is this aquastat compatible with both 120V and 240V burners?
Yes, the Resideo L8148E1265 provides SPST switching for burner and circulator loads across both voltages, though it is primarily optimized for 120 Vac system configurations.
Does this unit support domestic hot water priority?
This specific model is a high limit controller; if your application requires a low limit or circulator hold-off for domestic priority, verify the specific wiring requirements or consider the multi-functional L8124 series.
What should the thermostat anticipator be set to?
For stable operation and to prevent short-cycling, the thermostat should be set at 0.2A to match the low-voltage current draw of the relay coil.
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.
Original: $371.81
-65%$371.81
$130.13Resideo L8148E1265 Relay
The Resideo L8148E1265 is a professional-grade immersion-type high limit aquastat relay tailored for residential and light commercial hydronic heating systems. Engineered for vertical mounting, this Tradeline series controller manages both the burner and circulator motors, providing essential high limit protection within an operating temperature range of 180°F to 240°F. Operating on 120 Vac, the unit features SPST switching action and a fixed differential of 15°F to maintain precise boiler thermal cycles. For modern installations, the integrated Molex plug simplifies the connection to an automatic vent damper, while its 4 1/2-inch capillary ensures accurate sensing in various immersion well depths. Whether you are performing a new installation or a field replacement, this unit serves as the direct replacement for L8148E1281/B, maintaining the high electrical ratings required for 7.4A full-load burner and circulator control. Its robust construction and UL certification make it a standard choice for contractors focusing on reliability and safe system commissioning.
Key Benefits for Technicians:
- Simplified Integration: Factory-installed Molex plug provides a plug-and-play interface for vent dampers, reducing field wiring time.
- Broad Compatibility: Serves as a versatile 120V solution for hydronic boilers, supporting 24 Vac thermostats with a 0.2A anticipator setting.
- Enhanced Performance: Includes heat-conductive compound to ensure optimal thermal transfer between the immersion well and the bulb.
- Flexible Installation: Vertical mount design with compact case dimensions is ideal for tight mechanical rooms and varied insulation depths from 1 1/2 to 3 inches.
- High Amperage Capacity: Rated for up to 44.4A locked rotor at 120 Vac, providing the durability needed for heavy-duty burner and pump startups.
Common Technical Questions:
Is this aquastat compatible with both 120V and 240V burners?
Yes, the Resideo L8148E1265 provides SPST switching for burner and circulator loads across both voltages, though it is primarily optimized for 120 Vac system configurations.
Does this unit support domestic hot water priority?
This specific model is a high limit controller; if your application requires a low limit or circulator hold-off for domestic priority, verify the specific wiring requirements or consider the multi-functional L8124 series.
What should the thermostat anticipator be set to?
For stable operation and to prevent short-cycling, the thermostat should be set at 0.2A to match the low-voltage current draw of the relay coil.
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 L8148E1265 is a professional-grade immersion-type high limit aquastat relay tailored for residential and light commercial hydronic heating systems. Engineered for vertical mounting, this Tradeline series controller manages both the burner and circulator motors, providing essential high limit protection within an operating temperature range of 180°F to 240°F. Operating on 120 Vac, the unit features SPST switching action and a fixed differential of 15°F to maintain precise boiler thermal cycles. For modern installations, the integrated Molex plug simplifies the connection to an automatic vent damper, while its 4 1/2-inch capillary ensures accurate sensing in various immersion well depths. Whether you are performing a new installation or a field replacement, this unit serves as the direct replacement for L8148E1281/B, maintaining the high electrical ratings required for 7.4A full-load burner and circulator control. Its robust construction and UL certification make it a standard choice for contractors focusing on reliability and safe system commissioning.
Key Benefits for Technicians:
- Simplified Integration: Factory-installed Molex plug provides a plug-and-play interface for vent dampers, reducing field wiring time.
- Broad Compatibility: Serves as a versatile 120V solution for hydronic boilers, supporting 24 Vac thermostats with a 0.2A anticipator setting.
- Enhanced Performance: Includes heat-conductive compound to ensure optimal thermal transfer between the immersion well and the bulb.
- Flexible Installation: Vertical mount design with compact case dimensions is ideal for tight mechanical rooms and varied insulation depths from 1 1/2 to 3 inches.
- High Amperage Capacity: Rated for up to 44.4A locked rotor at 120 Vac, providing the durability needed for heavy-duty burner and pump startups.
Common Technical Questions:
Is this aquastat compatible with both 120V and 240V burners?
Yes, the Resideo L8148E1265 provides SPST switching for burner and circulator loads across both voltages, though it is primarily optimized for 120 Vac system configurations.
Does this unit support domestic hot water priority?
This specific model is a high limit controller; if your application requires a low limit or circulator hold-off for domestic priority, verify the specific wiring requirements or consider the multi-functional L8124 series.
What should the thermostat anticipator be set to?
For stable operation and to prevent short-cycling, the thermostat should be set at 0.2A to match the low-voltage current draw of the relay coil.
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.
