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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
the 15W12 valve ensures the compressor operates within its design envelope
Multi-Speed Versatility: Features four distinct speed taps to optimize HVAC airflow for varied seasonal demands
Operating as a close on rise thermal switch
For contractors servicing older PMAC units
Optimized Superheat Control: Ensures the evaporator operates at peak efficiency while preventing liquid refrigerant from reaching the compressor
Viessmann 7835169 Ionization Electr. R-22 the 15W12 valve ensures theThe Viessmann 7835169 Ionization Electrode is a critical flame sensing component engineered specifically for high capacity Vitodens 200 W B2HA condensing gas boilers. Designed to handle the rigorous thermal demands of the B2HA 399 and 530 models, this electrode provides the millivolt signal necessary for the burner control unit to verify flame presence safely and consistently. This kit includes the required electrode gasket to ensure a gas tight seal