Aaon ASM01874 Kit 321042-401 If the external switch is

If the external switch is functional but the signal is not reaching the main control module

Reliable Operation: Minimizes downtime by meeting the exact technical specifications of your existing Maxon combustion equipment

blower motor modulation

the Bard 800-0366BX is designed to handle the high-pressure requirements of modern R-410A refrigerant cycles found in newer Bard wall-mount units

airtight seal against the heat exchanger

Aaon ASM01874 Kit 321042-401 If the external switch isThe Aaon ASM01874 Kit, also known as the CommLink 5 Kit, is a high performance HVAC communication interface designed to bridge the gap between your HVAC units and advanced control systems. This genuine OEM Aaon part serves as the primary gateway for local and network level communications, allowing for comprehensive monitoring and configuration of compatible controllers. The ASM01874 kit provides a secure RS 485 communication link, facilitating data