Viessmann 7870769 Control Console R-407C ensuring the HVAC heating assembly

ensuring the HVAC heating assembly maintains consistent amperage draw and BTU delivery throughout the heating season

this solenoid-operated valve provides the exact structural integrity and electrical specifications required by Lochinvar Knight and A

This HVAC limit control is built with a standard two-pin terminal layout for quick field installation and is compatible with a wide range of Lennox G series and Dave Lennox Signature Collection furnaces

If the valve opens or closes as intended

which covers the majority of standard saturated steam service requirements at 150 PSI

Viessmann 7870769 Control Console R-407C ensuring the HVAC heating assemblyThe Viessmann 7870769 Control Console is a critical OEM replacement component engineered specifically for Vitodens 100 W B1HA and B1KA v5 gas fired condensing boilers. As a direct technical cross reference for the retired 7866187 module, this console provides the essential interface for advanced system monitoring, parameter configuration, and diagnostic feedback. It is designed to integrate seamlessly with Viessmann B1HA278 and B1KA 125 burner control