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or compressor replacement
Common indicators include the inducer motor failing to start despite 24V signal at the coil
When troubleshooting a water heater pilot that won't stay lit
Enhanced System Efficiency: Reliable feedback prevents unnecessary compressor cycling
Designed for in-line horizontal piping
Bard HVAC MC4002-B Control R-410A or compressor replacementThe Bard HVAC MC4002 B is a professional grade Advanced Solid State Dual Unit Lead Lag Controller engineered for critical infrastructure supporting two wall mount HVAC units. This direct replacement for MC4000 B and MC4001 B balances runtime across both systems while ensuring 100% redundancy in telecom shelters, equipment rooms, and data centers. Equipped with an Enhanced Alarm Board, the MC4002 B utilizes Form C dry contact alarm relays (NO and NC)