Trane VAL3518 Service Valve 323613-751 You should always verify compatibility

You should always verify compatibility with your specific model number

checking for carbon buildup or oxidation on this York furnace part is standard procedure

and 4-20mA (with the included 500-ohm resistor)

What happens if I run my HRV without these filters

Trane VAL3518 Service Valve 323613-751 You should always verify compatibilityMaintain the integrity of your refrigerant circuit with the Trane VAL3518 Discharge Service Valve, a genuine OEM component engineered for high pressure discharge line applications. This angled service valve is a critical replacement part for professional contractors servicing Trane and American Standard HVAC units using R 454B and similar high efficiency refrigerants. Built to withstand the rigors of commercial and residential systems, the VAL3518