McDonnell & Miller 101A-24V Water Feeder
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McDonnell & Miller 101A-24V Water Feeder

McDonnell & Miller 101A-24V Water Feeder

As a seasoned technician, you know that keeping a low-pressure steam boiler at the proper water level is non-negotiable for system safety and longevity. The McDonnell & Miller 101A-24V Water Feeder (Part Number 169500) is the industry standard for automating this process, effectively eliminating the need for manual feeding. This 24Vac electric water feeder is engineered specifically for cold water feed applications and integrates seamlessly with both mechanical and electronic low water cut-off (LWCO) controls. With a 150 PSI maximum water supply pressure and a 25 PSI maximum boiler pressure, this unit handles typical residential and commercial steam demands without skipping a beat. The inclusion of a dedicated 50VA transformer ensures the 24V solenoid receives stable power, while the quick-change replaceable cartridge valve and internal strainer simplify field 101A maintenance. For manual overrides or system testing, the built-in manual feed button provides immediate control without bypassing the primary safety loop.

Key Benefits for Your Boiler System:
  • Seamless Integration: Pairs with popular steam boiler controls like the Series 67 or PSE-800 for automated water makeup.
  • Simplified Serviceability: Features a replaceable cartridge valve and strainer (CTRD-101) to clear "gunk" without repiping the whole assembly.
  • Included Power Supply: Complements existing 24V circuits with a provided 50VA transformer to prevent voltage drops during solenoid activation.
  • Reliable Performance: Rated for 120°F maximum inlet water temperature to protect internal seals in high-heat environments.
Common Questions & Technical Considerations:

Can I use this feeder with a manual reset LWCO?
No, standard practice dictates that automatic water feeders should only be used with automatic reset low water cut-offs to ensure the system doesn't enter a "short cycle" or "lockout" state while trying to replenish water.

What causes a "rattling" noise during the feed cycle?
Pipes often rattle if the supply line isn't secured or if there is high velocity in the 1/2" NPT piping. Installing an air chamber on the inlet side typically resolves this water feeder troubleshooting issue.

Is the transformer required for installation?
Yes. To avoid damage to the solenoid, you must use the McDonnell & Miller 101-24V-48 transformer included in the box, as standard boiler transformers may not have the VA capacity to handle both the burner and the feeder.

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.

$299.36

Original: $855.31

-65%
McDonnell & Miller 101A-24V Water Feeder

$855.31

$299.36

McDonnell & Miller 101A-24V Water Feeder

As a seasoned technician, you know that keeping a low-pressure steam boiler at the proper water level is non-negotiable for system safety and longevity. The McDonnell & Miller 101A-24V Water Feeder (Part Number 169500) is the industry standard for automating this process, effectively eliminating the need for manual feeding. This 24Vac electric water feeder is engineered specifically for cold water feed applications and integrates seamlessly with both mechanical and electronic low water cut-off (LWCO) controls. With a 150 PSI maximum water supply pressure and a 25 PSI maximum boiler pressure, this unit handles typical residential and commercial steam demands without skipping a beat. The inclusion of a dedicated 50VA transformer ensures the 24V solenoid receives stable power, while the quick-change replaceable cartridge valve and internal strainer simplify field 101A maintenance. For manual overrides or system testing, the built-in manual feed button provides immediate control without bypassing the primary safety loop.

Key Benefits for Your Boiler System:
  • Seamless Integration: Pairs with popular steam boiler controls like the Series 67 or PSE-800 for automated water makeup.
  • Simplified Serviceability: Features a replaceable cartridge valve and strainer (CTRD-101) to clear "gunk" without repiping the whole assembly.
  • Included Power Supply: Complements existing 24V circuits with a provided 50VA transformer to prevent voltage drops during solenoid activation.
  • Reliable Performance: Rated for 120°F maximum inlet water temperature to protect internal seals in high-heat environments.
Common Questions & Technical Considerations:

Can I use this feeder with a manual reset LWCO?
No, standard practice dictates that automatic water feeders should only be used with automatic reset low water cut-offs to ensure the system doesn't enter a "short cycle" or "lockout" state while trying to replenish water.

What causes a "rattling" noise during the feed cycle?
Pipes often rattle if the supply line isn't secured or if there is high velocity in the 1/2" NPT piping. Installing an air chamber on the inlet side typically resolves this water feeder troubleshooting issue.

Is the transformer required for installation?
Yes. To avoid damage to the solenoid, you must use the McDonnell & Miller 101-24V-48 transformer included in the box, as standard boiler transformers may not have the VA capacity to handle both the burner and the feeder.

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

As a seasoned technician, you know that keeping a low-pressure steam boiler at the proper water level is non-negotiable for system safety and longevity. The McDonnell & Miller 101A-24V Water Feeder (Part Number 169500) is the industry standard for automating this process, effectively eliminating the need for manual feeding. This 24Vac electric water feeder is engineered specifically for cold water feed applications and integrates seamlessly with both mechanical and electronic low water cut-off (LWCO) controls. With a 150 PSI maximum water supply pressure and a 25 PSI maximum boiler pressure, this unit handles typical residential and commercial steam demands without skipping a beat. The inclusion of a dedicated 50VA transformer ensures the 24V solenoid receives stable power, while the quick-change replaceable cartridge valve and internal strainer simplify field 101A maintenance. For manual overrides or system testing, the built-in manual feed button provides immediate control without bypassing the primary safety loop.

Key Benefits for Your Boiler System:
  • Seamless Integration: Pairs with popular steam boiler controls like the Series 67 or PSE-800 for automated water makeup.
  • Simplified Serviceability: Features a replaceable cartridge valve and strainer (CTRD-101) to clear "gunk" without repiping the whole assembly.
  • Included Power Supply: Complements existing 24V circuits with a provided 50VA transformer to prevent voltage drops during solenoid activation.
  • Reliable Performance: Rated for 120°F maximum inlet water temperature to protect internal seals in high-heat environments.
Common Questions & Technical Considerations:

Can I use this feeder with a manual reset LWCO?
No, standard practice dictates that automatic water feeders should only be used with automatic reset low water cut-offs to ensure the system doesn't enter a "short cycle" or "lockout" state while trying to replenish water.

What causes a "rattling" noise during the feed cycle?
Pipes often rattle if the supply line isn't secured or if there is high velocity in the 1/2" NPT piping. Installing an air chamber on the inlet side typically resolves this water feeder troubleshooting issue.

Is the transformer required for installation?
Yes. To avoid damage to the solenoid, you must use the McDonnell & Miller 101-24V-48 transformer included in the box, as standard boiler transformers may not have the VA capacity to handle both the burner and the feeder.

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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