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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
Pressure Stability: Restores proper airflow dynamics to prevent nuisance pressure switch lockout codes
Key Benefits Precise Differential Sensing: Accurately monitors negative pressure to ensure the inducer fan is operating within manufacturer specifications
The standard iO-WW4 kit includes (4) WW-R-240 relays for 208/240V systems
Check for adequate voltage at the coil and ensure the differential pressure is within the 0-250 PSI range
Lennox 12S77 Heater 324846-701 Pressure Stability: Restores proper airflowThe Lennox 12S77 (Model ECB25 12. 5CB 9) is a high performance 12. 5KW electric heater kit specifically engineered for seamless integration with CBX25UH and CBX25UHV series air handlers. This auxiliary heat section provides reliable supplemental or emergency heating, ensuring system setpoints are maintained during extreme ambient drops. Designed for three phase power applications, the unit operates across a versatile voltage range of 208V to 230 460V,
