Description
Product Overview
The Xylem-McDonnell & Miller Model 93 (Part Number 162300) is a combination low water cut off and pump controller engineered specifically for steam boiler applications. This reliable, float-operated control provides simultaneous low water protection and automatic pump management in a single, compact unit — simplifying installation and reducing the number of devices required on the boiler.
Key Features
- Combination low water cut off and pump controller in one unit
- Two snap-acting SPDT (Single-Pole Double-Throw) switches for independent control of burner cut off and pump operation
- Rated for steam boilers with a maximum working pressure of 150 PSI
- Float-operated mechanism for accurate and responsive water level sensing
- Designed for dependable, long-service-life performance in demanding steam heating systems
- Part Number: 162300
How It Works
The Model 93 uses a float assembly to continuously monitor boiler water level. When water drops to an unsafe level, the first SPDT switch activates the feed pump to restore water, while the second SPDT switch shuts down the burner to prevent boiler damage from low water conditions. This dual-switch design ensures both pump control and burner safety functions operate independently and reliably.
Applications
- Steam heating boilers in residential, commercial, and light industrial settings
- Systems requiring combined low water cut off and pump control functionality
- Boiler installations with operating pressures up to 150 PSI
Specifications
- Model: 93
- Part Number: 162300
- Switch Type: Two Snap-Acting SPDT Switches
- Maximum Working Pressure: 150 PSI
- Application: Steam Boilers
- Function: Combination Low Water Cut Off and Pump Controller
- Brand: Xylem-McDonnell & Miller
Why Choose the McDonnell & Miller 93?
McDonnell & Miller has been a trusted name in boiler controls for over a century. The Model 93 combines proven float technology with dual SPDT switching to deliver both pump control and burner safety protection in one rugged assembly. Its straightforward design makes it a go-to choice for HVAC professionals who demand reliability and ease of installation on steam boiler systems.
