Resideo ARD9TZ Damper Freon is a 5-ton H-series Thermostatic

is a 5-ton H-series Thermostatic Expansion Valve (TXV) engineered for R-22 and R-407C systems

The ASCO 222344-002-D Solenoid Coil is a high-performance

The Sensus 143-16-021-04 Blue Spring is a critical calibration component engineered specifically for Sensus 243-12 and 121-12 gas pressure regulators

This non-spring return electric actuator is engineered for precise modulation of dampers and valves

the 36C03-300 is the official technical replacement for the Nordyne 624537

Resideo ARD9TZ Damper Freon is a 5-ton H-series ThermostaticThe Resideo ARD9TZ is a 9 inch automatic round damper engineered specifically for high efficiency forced air zoning systems that require reliable airflow control. Operating on 24Vac, this two position damper uses a power closed spring return open actuator, ensuring a fail safe open position during power loss to maintain system circulation. This model is the professional grade direct replacement for ARD9TZ U, RDS 9, and CRDS09 legacy dampers.