15
OPERATION
SECTION 5
When properly installed and adjusted the Heater will require the minimum of attention.
Should it become necessary to completely drain the heater, close the cold water inlet
valve, open a hot water tap to allow air to enter the system. Fit a suitable hose to the
drain cock and open.
Whenever the Heater is filled with cold water, condensation will form on the cold storage
vessel surfaces when the burner is lit. Condensation is normal and does not indicate a
leak. It will disappear when the storage vessel becomes heated.
The gas control fitted to this heater has a built in limit thermostat (ECO). In case of high
water temperature the gas supply will be automatically shut off. The reason for such a
high temperature must be investigated and corrected before the heater is relit.
The gas control is fitted with a recycling type ECO, this means that once the water
temperature has cooled sufficiently the ECO circuit will close and allow the heater to be
relit. If the gas control has to be changed it must be replaced with an identical model
having the same code number.
If in doubt contact Andrews Water Heaters.
