it provides reliable performance under vacuum or high-pressure conditions

For Series 64 or 67

technicians should verify if an EPDM "Hi-Temp" variant like the GB-D is more appropriate for the specific thermal load of the system

ensuring the system remains safe and compliant

meaning it re-closes the circuit on its own once temperatures drop

Nordyne 626610 Rollout Switch it provides reliable performance underThe Nordyne 626610 Rollout Switch is a critical safety component designed for precise thermal monitoring in high efficiency gas furnaces. Engineered with a 250 degree F fixed temperature setpoint, this Single Pole Single Throw (SPST) switch provides indispensable protection by breaking the electrical circuit if it detects flames or excessive heat escaping the combustion chamber. As a Manual Reset device, it ensures that a qualified technician must