This relay is frequently found in CB29M and HP21 series units

By replacing the internal V-Rings

Key Benefits Universal Compatibility: The 1970 series Uni-Couple design fits virtually all standard or specialized pilot burners using the included Tinnerman clip and zip nut

which can lead to improper vacuum readings and system lockouts

Daikin-McQuay 4022330 Control Board 318172-701 This relay is frequently foundThe Daikin McQuay 4022330 Control Board is a critical OEM replacement circuit board engineered for high performance management within Daikin McQuay HVAC systems and industrial chiller units. Designed to function as the central processing hub, this 4022330 PCB monitors real time data from temperature sensors, pressure transducers, and flow switches to regulate essential components like compressors and condenser fans. Its advanced architecture ensures