Central Heating Cylinder thermostats
The electrical thermostat fits on the body of a cylinder to sense temperature. This can be set to various temperatures and is usually attached by means of a metal band around the cylinder, located about a third of the way up. The usual acceptable hot-water setting is 60°C.
This type of thermostat can be used to control a motorized valve to shut off supply when heat requirements are met.
The mechanical type of valve fits into the cylinder; a sensor phial reacts to temperature and opens or closes an inlet valve.
However, with a pumped-primary circuit a motorized valve must be used, since the isolation of hot water from heating is still necessary.
10. November 2011 by admin
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