Weil McLain 510-811-476 Retrofit Kit Refrigerant Field Serviceable: Minimizes downtime by

Field Serviceable: Minimizes downtime by allowing for direct cartridge replacement without removing the valve body from the liquid line

which is critical for protecting the heat exchanger and maintaining indoor air quality

as it ensures no residual voltage remains on the load side of the compressor or condenser fan motor when the 24V control signal is removed

meaning the switch will automatically revert to its resting position once the sensed air pressure falls below the set switching differential

it is specifically manufactured to replace legacy models including the 05-100000-411 and 22-100001-116

Weil McLain 510-811-476 Retrofit Kit Refrigerant Field Serviceable: Minimizes downtime byThe Weil McLain 510 811 476 ignition control retrofit kit is a critical field replacement solution designed to transition older boiler systems from obsolete Fenwal 05 21 or 05 31 series controls to the high reliability Fenwal 35 655505 011 integrated ignition module. This comprehensive kit addresses the common failure points in legacy spark to pilot and direct spark ignition sequences, ensuring stable flame rectification and precise timing for