McDonnell & Miller B115

93-HDLS

• 2-1/8" probe
• 30 sec delay on make, 10 sec delay on break
• Features an automatic reset, test switch and LED low water indicator light
• No lock out with loss of power if probe is in water
• Self-cleaning probe
• NEMA 1 enclosure

McDonnell & Miller 153827

McDonnell & Miller B115-1

• Automatically shuts off burner in a low water condition to prevent boiler damage
• Heavy duty electro-mechanical design for long life
• Manual reset feature requires manual reset if low water condition exists for 30 sec or longer
• Equipped with shorter probe for mounting in standard reducing tees
• SPST switch contact

Hydrolevel Parts 1100M

• Provides accurate and dependable protection
• External LEDs and simplified wiring for easy installation and testing and patented adjustable probe sensitivity
• Probe-style, microprocessor-based control that detects the fluid level in hot water and steam boilers and reacts when the level falls below the minimum safe operating level
• SPDT switch contact

LFA1203S-1

• Provides accurate and dependable protection
• External LEDs and simplified wiring for easy installation and testing and patented adjustable probe sensitivity
• Probe-style, microprocessor-based control that detects the fluid level in hot water and steam boilers and reacts when the level falls below the minimum safe operating level
• SPDT switch contact

LFA0243S

• 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

Bell & Gossett 75-01

McDonnell & Miller B120

McDonnell & Miller B122

• Lockout delay
• Power interruption
• Self cleaning probe
• No lock out with loss of power if probe is in water
• Green LED indicates power on
• Red LED indicating low water condition
• 7000 ohm probe sensitivity

McDonnell & Miller B103-17