Honeywell 2450CMG Series Ceramic Manual Reset Commercial Thermostat Application Note

The 2450CMG series ceramic manual reset commercial thermostat is designed to detect and prevent flame enlargement in hot water heaters/boilers, with high temperature resistance and temperature accuracy.


Honeywell 2450CMG Series Ceramic Manual Reset Commercial Thermostat Application Note - cover page
Brand
Honeywell
Document type
Application Note
Language
English
Pages
2
File format
PDF
File size
245 KB
Published
07 May, 2012
Updated
29 September, 2023
MD5 checksum
6801DEA0A92ED56876F9CDB3D1016A05

About this manual

The 2450CMG Series ceramic manual reset thermostat is designed to detect the initial enlargement of a flame in commercial water heaters or boilers. When flame enlargement is sensed, the thermostat opens, cutting electrical power to the heater/boiler and consequently stopping fuel to the burner, preventing a dangerous flame rollout.

The document includes safety warnings that the product must not be used as a safety or emergency‑stop device, and outlines Honeywell's standard warranty terms. It also provides contact information for sales and service support worldwide.

What's inside

  • BACKGROUND
  • SOLUTION
  • Features and Benefits
  • Sensing and Control
  • WARNING
  • PERSONAL INJURY
  • WARRANTY/REMEDY
  • SALES AND SERVICE

Specifications

Maximum exposure temperature260 °C (500 °F)
Configurable operating pointup to 232 °C (450 °F)
Contact typeWE-1 gold alloy cross point contacts
Safety approvalsUL, CSA and VDE approved
Mounting optionsVariety of mounting studs, brackets and terminals

Frequently asked questions

What does the 2450CMG thermostat do when flame enlargement occurs?

It opens, cutting the electrical supply to the water heater or boiler, which then cuts the fuel supply to the burner/heat exchanger.

What temperature limits does the thermostat support?

The thermostat can withstand exposure temperatures up to 260 °C (500 °F) and can be set to operate up to 232 °C (450 °F).

Is the thermostat approved for global use?

Yes, it is UL, CSA and VDE approved for use in global applications.

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