7 degree F Fixed Differential

formerly produced by Honeywell and DeZurik

also designated as model 740-1-40

Common Questions Is this harness compatible with all York rooftop units

The manual reset (M/R) configuration requires a technician to physically inspect the system for airflow obstructions or combustion issues before restoring operation

Aaon ASM01668 Controller 30067439-890 7 degree F Fixed DifferentialThe Aaon ASM01668 MODGAS X Controller is a high performance HVAC control module designed to provide precision modulation for gas heating systems. Engineered as the direct replacement for Aaon V12090, this electronic controller ensures seamless integration into existing commercial HVAC rooftop units. By utilizing advanced microprocessor based control, the ASM01668 optimizes burner efficiency and temperature stability, reducing energy consumption and