McDonnell & Miller 67-BC-2 Low Water Cut Off
For steam boiler maintenance, the McDonnell & Miller 67-BC-2 Low Water Cut Off is a critical safety component designed to protect residential and commercial systems from dry-firing. This 120V mechanical, float-style control effectively interrupts the burner circuit if water levels drop below the safe threshold. Featuring dual precision switches, the 150210 model provides high-reliability operation for both the low water cut-off and an alarm or electric water feeder connection. The 3/4 inch NPT quick hook-up fittings streamline the integration into existing gauge glass tappings, while the lever-operated full port ball valve facilitates necessary routine blow down maintenance. Rated for a maximum steam pressure of 20 psi, this unit is a standard in HVAC boiler control systems, ensuring hardware longevity and system safety. Whether you are performing a McDonnell & Miller 150210 replacement or a new installation, this float-type LWCO provides the mechanical dependability required for high-steaming capacity boilers.
Key Benefits- Quick Hook-up Fittings: Designed for rapid installation using 3/4" gauge glass tappings without complex repiping.
- Dual Switch Functionality: Integrated 120V switches control both burner cut-off and secondary functions like alarms or water feeders.
- Simplified Maintenance: Features a high-flow lever-operated ball valve for efficient sediment removal during blow down.
- Universal Application: Compatible with steam boilers of any steaming capacity up to 20 psi.
- Reliable Float Mechanism: Robust mechanical design provides visible, dependable protection compared to electronic probes in older systems.
Can the 67-BC-2 be used on hot water boilers?
No, this specific model is designed for steam boiler applications with a maximum pressure of 20 psi. For hot water systems, a probe-style or different float-style LWCO is typically required.
How often should I blow down the 67-BC-2?
To prevent sediment buildup in the float chamber, it is standard practice to perform a blow down at least once a week during the heating season, or as specified by local codes and the boiler manufacturer.
Is the 150210 model manual or automatic reset?
The 67-BC-2 typically functions as an automatic reset control, though it can be field-converted or paired with manual reset switches if required by local safety regulations.
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: $787.06
-65%$787.06
$275.47McDonnell & Miller 67-BC-2 Low Water Cut Off
For steam boiler maintenance, the McDonnell & Miller 67-BC-2 Low Water Cut Off is a critical safety component designed to protect residential and commercial systems from dry-firing. This 120V mechanical, float-style control effectively interrupts the burner circuit if water levels drop below the safe threshold. Featuring dual precision switches, the 150210 model provides high-reliability operation for both the low water cut-off and an alarm or electric water feeder connection. The 3/4 inch NPT quick hook-up fittings streamline the integration into existing gauge glass tappings, while the lever-operated full port ball valve facilitates necessary routine blow down maintenance. Rated for a maximum steam pressure of 20 psi, this unit is a standard in HVAC boiler control systems, ensuring hardware longevity and system safety. Whether you are performing a McDonnell & Miller 150210 replacement or a new installation, this float-type LWCO provides the mechanical dependability required for high-steaming capacity boilers.
Key Benefits- Quick Hook-up Fittings: Designed for rapid installation using 3/4" gauge glass tappings without complex repiping.
- Dual Switch Functionality: Integrated 120V switches control both burner cut-off and secondary functions like alarms or water feeders.
- Simplified Maintenance: Features a high-flow lever-operated ball valve for efficient sediment removal during blow down.
- Universal Application: Compatible with steam boilers of any steaming capacity up to 20 psi.
- Reliable Float Mechanism: Robust mechanical design provides visible, dependable protection compared to electronic probes in older systems.
Can the 67-BC-2 be used on hot water boilers?
No, this specific model is designed for steam boiler applications with a maximum pressure of 20 psi. For hot water systems, a probe-style or different float-style LWCO is typically required.
How often should I blow down the 67-BC-2?
To prevent sediment buildup in the float chamber, it is standard practice to perform a blow down at least once a week during the heating season, or as specified by local codes and the boiler manufacturer.
Is the 150210 model manual or automatic reset?
The 67-BC-2 typically functions as an automatic reset control, though it can be field-converted or paired with manual reset switches if required by local safety regulations.
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
For steam boiler maintenance, the McDonnell & Miller 67-BC-2 Low Water Cut Off is a critical safety component designed to protect residential and commercial systems from dry-firing. This 120V mechanical, float-style control effectively interrupts the burner circuit if water levels drop below the safe threshold. Featuring dual precision switches, the 150210 model provides high-reliability operation for both the low water cut-off and an alarm or electric water feeder connection. The 3/4 inch NPT quick hook-up fittings streamline the integration into existing gauge glass tappings, while the lever-operated full port ball valve facilitates necessary routine blow down maintenance. Rated for a maximum steam pressure of 20 psi, this unit is a standard in HVAC boiler control systems, ensuring hardware longevity and system safety. Whether you are performing a McDonnell & Miller 150210 replacement or a new installation, this float-type LWCO provides the mechanical dependability required for high-steaming capacity boilers.
Key Benefits- Quick Hook-up Fittings: Designed for rapid installation using 3/4" gauge glass tappings without complex repiping.
- Dual Switch Functionality: Integrated 120V switches control both burner cut-off and secondary functions like alarms or water feeders.
- Simplified Maintenance: Features a high-flow lever-operated ball valve for efficient sediment removal during blow down.
- Universal Application: Compatible with steam boilers of any steaming capacity up to 20 psi.
- Reliable Float Mechanism: Robust mechanical design provides visible, dependable protection compared to electronic probes in older systems.
Can the 67-BC-2 be used on hot water boilers?
No, this specific model is designed for steam boiler applications with a maximum pressure of 20 psi. For hot water systems, a probe-style or different float-style LWCO is typically required.
How often should I blow down the 67-BC-2?
To prevent sediment buildup in the float chamber, it is standard practice to perform a blow down at least once a week during the heating season, or as specified by local codes and the boiler manufacturer.
Is the 150210 model manual or automatic reset?
The 67-BC-2 typically functions as an automatic reset control, though it can be field-converted or paired with manual reset switches if required by local safety regulations.
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.
