Weil-McLain Heating Parts 511100005

Viessmann Heating Parts 9668977

Interrupts power immediately in a low water condition
• Provides contacts for optional low-water alarm, heavy-duty construction
• Automatically restarts burner on return of normal water level
• NEMA 1 enclosure
  

  Hydrolevel 170

Field-adjustable dwell-feed cycles
• Multi color LED status indicator
• Manual feed button
• Hard-stop limit to minimize chances of flooding the boiler
• Compatible with all electronic and mechanical low water cut-off
• Includes adapters for connection to 1/2" copper tubing
• Removable strainer
  

  McDonnell & Miller B112-6

125 VA pilot duty rating
• 4-1/8" length insertion
• Packless bellows
• Dual precision switches for dependable operation of the low water cut-off and an alarm or electric water feeder
• For mounting in 2-1/2" NPT boiler side tappings
• Adjustable Bx outlet for easy installation
  

  McDonnell & Miller B106

125 VA pilot duty rating
• Quick change replaceable cartridge valve and strainer
• Proportional feed action
• Includes #2 switch <
  

  McDonnell & Miller B111-1

Quick hook-up fittings provided
• Lever operated, full port ball valve for easy blow down
• Adjustable Bx outlet for easy installation
• Dual precision switches for dependable operation of cut-off, alarm or electric water feeder
  

  McDonnell & Miller B103

Continuous maintenance of minimum safe water level, independent of electrical service
• Proportional feed action
• Quick hook-up fittings provided
• Quick change replaceable cartridge valve and strainer
• Model 47 can be field upgraded with a No #2 switch to add low water cut-off function
  

  McDonnell & Miller B110-1

Universal compatibility
• Digital feed counter
• Programmable feed delay settings (30 sec - 10 min)
• Programmable feed amount settings (LWCO and 1-5 Gallon)
• Manual feed button
• Underfeed protection
• Lock-out flood protection
  

  Hydrolevel B112-5

Field-adjustable dwell-feed cycles
• Multi color LED status indicator
• Manual feed button
• Hard-stop limit to minimize chances of flooding the boiler
• Compatible with all electronic and mechanical low water cut-off
• Includes adapters for connection to 1/2" copper tubing
• Removable strainer
  

  McDonnell & Miller B112-7

Eliminates necessity to manually add water to the boiler
• Can be used with mechanical or electronic low water cut-off controls
• Quick-change replaceable cartridge valve and strainer
• Manual feed butTon
• 40 VA transformer
  

  McDonnell & Miller B112-8

No more trips to the basement to add water to the boiler
• Works with all probe and float type low water cut-offs
• Brightly illuminated feed counter displays the amount of water added to the boiler
• Built-in memory prevents power interruptions from clearing the counter
• Helps prevent flooded boilers, allows time for condensate to return to the boiler before starting a feed cycle
• Six settings provide two ways to feed
• 1 - 5 Gallon settings now feed above the probe to restore the boiler's normal operating level or select LWCO setting to end the feed cycle
• Allows for additional make-up water at the touch of a button, manual feed amounts are recorded and added to the totalGallons displayed by the feed counter
• If one feed cycle is not sufficient to restore boiler operation, the VxT will delay and feed one additional cycle
• Digital feed counter
• 30 sec to 10 min programmable feed delay settings
• LWCO and 1 - 5 Gallon programmable feed amount settings
• Manual feed button
• Underfeed protection
• Lock-out flood protection
• 1 gpm flow rate
• 10 VA power consumption
  

  Hydrolevel B112-4