Does this unit help with noise reduction

the York S1-3500-410P/A Heater Element is the direct spec replacement you need to get the system back online

Do I need special tools to install this remote sensor

Durable Construction: Housed in a NEMA 1 enclosure suitable for standard plenum and indoor HVAC environments

This part is the direct replacement for York full-cased coil models CF30CXA1A

Watts 0121411 Valve 326058-758 Does this unit help withThe Watts 0121411 (Model LF40XL 5 100) is a heavy duty, automatic reseating temperature and pressure relief valve designed for commercial hot water supply tanks and storage heaters. Featuring a lead free copper silicon alloy body and a 5 inch non potable water extension thermostat, this valve is engineered for high capacity protection in demanding environments. It is equipped with a 3 4" NPT male inlet and a 3 4" NPT female outlet, providing a