57T01-843 Blower time Delay Relay,Replacement for Delay Device for White Rodgers Trane Fan Relay Board RLY02807 57T01-001

57T01-843 Blower time Delay Relay,Replacement for Delay Device for White Rodgers Trane Fan Relay Board RLY02807 57T01-001

【Enhanced Cooling Efficiency】The 57T01-843 blower delay timer optimizes the cooling performance of your air handling units by ensuring that residual air continues to circulate even after the compressor shuts down. 【Compatibility】57T01-843 is compatible with various models of White-Rodgers and Trane blower time delay relays, including RLY02807, RLY02257, 91-9301, C800924P01, X13260259010, 57T01-001, 57T01-002, and D155079P01. 【Precision Delay Timing】This unit features a precise startup delay of 2 seconds and a shutdown delay of 80 seconds, allowing for controlled airflow and preventing abrupt temperature changes in your HVAC system. 【Ideal Compatibility】Designed specifically for installation in air conditioning and heat pump systems, the 57T01-843 compressor time delay is the perfect solution for managing airflow in compressor-operated environments. 【Durable Construction】Made from high-quality materials, the 57T01-843 blower delay timer is built to withstand the demands of HVAC applications, ensuring long-lasting performance and reliability. This relay is used to delay the blower shut-off after the compressor shuts off，also be used to delay the blower shut-off in heating, depending on electrical hookup in a heat pump system.