Fan coil isolation valves control the supply and return water from the buildings risers into and out of your fan coil. Over time these valves become: rusted, corroded, seized or snap off. When this happens your HVAC unit becomes a risk for floods. If your coil began to leak water the isolation valves would need to be shut off to stop the leak. If those valves can not be shut off the riser that feeds water to everyone above and below you would need to be drained. This takes time and once the leak has finally been stopped you could be looking at significant water damage. In fan coils over 20 years of age these valves are closer to failing then they are to working..
If you're a property manager or a board member call 647-345-5325 for a quote to see what we can do to improve your buildings IAQ (Indoor Air Quality).