Trane CNT1466 Ignition Control 30067439 890 The durable aluminum housing and The durable aluminum housing and metallized polypropylene film construction are built to withstand the high internal temperatures of a condenser cabinet its mechanical bellows and 1 4" male flare connection are compatible with most non corrosive HFC and HCFC blends used in low pressure refrigeration applications the continuous retry logic provides superior uptime by persistently cycling the hot surface ignitor and gas valve until a stable flame is sensed or a critical safety limit is reached this controller manages the heating cycle by monitoring the flame signal and initiating a sequence of retry attempts if pilot or main burner ignition fails to establish on the first cycle