(800)865-5931 Mon-Tue 7am-7pm, Wed-Fri 8am-6pm, Sat 9am-2pm CT
AMERICA'S HEATING & COOLING STORE™
EST. 2002
Home Air Products™
40
My Location: Ashburn, VA [Change]
|
Free Shipping See Details
|
No Sales Tax See Details
Enter your zip for personalized product and service recommendations.
YOUR SHOPPING EXPERIENCE IS NOW PERSONALIZED.
Actual product may vary from photos.
The McDonnell & Miller 153896 PS-851-M-120 has been discontinued.
TRY THIS INSTEAD
Please call us for a suitable alternate product.

(800) 865-5931

Mon-Tue 7am-7pm, Wed-Fri 8am-6pm, Sat 9am-2pm CT

The Series 850 controls provide continuous protection against low water conditions for residential, commercial and industrial applications. Increased probe sensitivity prevents nuisance shutdowns, and a new test feature diagnoses shorted probe problems at installation. The improved userfriendly diagnostic LEDs simplify installation and troubleshooting, ensuring proper operation and saving time.

Standard Features:

  • For residential and commercial applications
  • Manual reset
  • Green LED power and test light
  • Red LED shorted probe and low water indicator light
  • No blow-down required when mounted directly to boiler trappings
  • Meets ANSI specification Z21.13a
  • No lockout with loss of power if probe is in water

Maximum Temp Rating
250 °F
Max Water Pressure
160 PSI
Product Weight
2.7 lbs
Voltage
120 Volts
Get expert assistance from our team
Call our product specialists at 800-865-5931
Mon-Fri 8am-5:30pm, Sat 9am-2pm CT
Bill
Brian
Dan
Joseph
Russ
Sal
Message
Please enter a message
Email
Please use a valid email
Phone (optional)
Please use a valid phone number
Name (optional)
Please use a valid phone number