The HH18HA450 is designed as an automatic reset limit switch

The panel supports both normal and parallel sequencing

as well as specific Lennox oil furnaces

or physical bulging of the capacitor's top plate due to internal pressure buildup

providing flexible bulb placement for accurate superheat control

Trane PAN2000 Drain Pan 321702-401 The HH18HA450 is designed asThe Trane PAN2000 Drain Pan is an essential OEM replacement part engineered for specific high capacity Trane and American Standard air handling units. Measuring approximately 64. 46 inches in length, this condensate drain pan is constructed from heavy duty, corrosion resistant plastic designed to withstand the high moisture environment of an evaporator coil cabinet. It serves as a critical HVAC replacement part, effectively collecting and channeling