The System Sensor RTS151KEY is a professional-grade remote test station with key specifically engineered for duct smoke detector testing and monitoring in commercial HVACR environments

providing the structural integrity required for HVACR burner assemblies

Operating on a 230/460V 3-phase power supply

1/4 HP condenser fan motor engineered for specific compatibility with York

Code Compliance: Designed and certified to ASME Section IV standards for forced circulation heating boilers

Daikin-McQuay 106489111 TXV R-134A The System Sensor RTS151KEY isThe Daikin McQuay 106489111 TXV is a precision engineered thermostatic expansion valve designed for high performance HVACR refrigeration systems. This specific Daikin OEM replacement TXV features a 5 8 inch connection and is rated for 90# pressure requirements, making it a critical component for maintaining optimal superheat in R410A refrigerant circuits. With a 42 inch capillary tube length, it provides the necessary reach for complex evaporator coil