ITT McDonnell & Miller 61-HD Low Water Cut-Off 205210

ITT McDonnell & Miller 61-HD Low Water Cut-Off 205210

The ITT McDonnell & Miller 61-HD Low Water Cut-Off (Part Number 205210) is a mechanical control device designed to ensure the safe operation of residential and commercial low-pressure steam boilers. By monitoring water levels, it prevents boiler damage due to low water conditions.

Key Features

• Versatile Application: Suitable for boilers of any steaming capacity in both residential and commercial settings.
• Adjustable BX Outlet: Facilitates easy installation with its adaptable BX outlet.
• Dual Precision Switches: Ensures reliable operation of both the low water cut-off and alarm or electric water feeder.
• Packless Bellows: Incorporates a packless bellows design to enhance durability and reduce maintenance needs.
• Standard Connections: Requires 1″ NPT equalizing pipes and a blow-down valve for proper installation.
• Pressure Rating: Designed to handle a maximum steam pressure of 20 psi (1.4 kg/cm²).

Electrical Specifications

• Voltage Compatibility: Operates with 120V or 240V power supplies.
• Motor Switch Ratings:
  • At 120 VAC: 7.4 A (Full Load), 44.4 A (Locked Rotor)
  • At 240 VAC: 3.7 A (Full Load), 22.2 A (Locked Rotor)
• Pilot Duty Rating: 125 VA at 120 or 240 VAC.

Installation Requirements

Proper installation necessitates the use of 1″ NPT equalizing pipes and a blow-down valve. The device’s adjustable BX outlet simplifies the installation process, accommodating various boiler configurations.

Dimensions and Weight

• Overall Dimensions: 9-15/16″ Length x 5-1/8″ Width x 6-1/2″ Height.
• Weight: Approximately 13.5 lbs.

The ITT McDonnell & Miller 61-HD Low Water Cut-Off 205210 is a reliable and essential component for maintaining the safety and efficiency of steam boiler systems, offering robust features tailored for diverse applications.