RT500 family of devices:
Question: Are the receiver terminals Volt Free?
Answer: The receiver COM and NO terminals on the RF500RF are Volt Free. Switched voltages can be used when wired correctly.
Question: Can the receiver be dismantled or removed without unwiring it?
Answer: The receivers should only be installed and inspected by an electrically competent person
Question: Can the system be used with an app or other smart heating system? Can I upgrade to a smart thermostat without changing the receiver? Can I purchase a Smart Wi-Fi controlled Thermostat that will communicate plugin receiver?
Answer: No, the receiver or thermostat are not compatible with app and smart systems. The system would need to be upgraded for smart device features and control.
Question: What can I upgrade my RT500 system to?
Answer: Modern equivalents would be the RT510RF, RT520RF, DT600RF. For smart systems, IT700 or IT800WIFI.