What causes a limit switch like the 10728312 to trip frequently

What are the electrical requirements for this 3-phase heat kit

System Protection: Effectively prevents refrigerant underfeeding and overfeeding to protect the compressor

Broad Compatibility: Fits various York ACP and D1NP model series air handlers and rooftop units

Marvair 70411 Heat Strip 322027-701 What causes a limit switchThe Marvair 70411 Heat Strip is a high output 10 kW electric heater kit designed specifically for integration with Marvair vertical wall mount HVAC units. Engineered for field installation, this resistance heating element provides essential supplemental or emergency heat for telecommunication shelters, modular offices, and commercial enclosures. The Marvair 10kW heating element is built to maintain tight temperature tolerances and ensures consistent