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The module features an 11-pin octal socket plug-in design
it is recommended to perform this maintenance once per heating season
While this is an OEM Fenwal harness
the main burner orifice may need to be ordered separately depending on your heater's BTU rating and altitude
What are the symptoms of a failing Mustang relay board
DriSteem 405884-109 Transmitter 319825-402 The module features an 11-pinThe DriSteem 405884 109 transmitter is designed for precise duct humidity monitoring and high limit control in commercial HVAC systems. This duct humidity transmitter integrates RH sensing with a high limit safety function, making it suitable for humidification control applications where over saturation must be prevented. Built for compatibility with DriSteem systems, this RH duct sensor provides stable signal output for accurate environmental control
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