the desired temperature and that all three elements are pulsing equally. The thermostats
are now set and the water temperature will always be the same when the lights are pulsing.
7) Check performance of flow switch by opening and closing the faucet of the outlet valve a
few times.
THE POWER INDICATOR LIGHT SHOULD ONLY BE ON WHEN WATER IS FLOWING
THROUGH THE UNIT. For expected temperature rise at various rates of flow see chart
8) It is possible that drawing off cold water at comparatively high rates of flow elsewhere in
the building at the same time that the heater is working, could cause premature element
failure. Care should be taken not to starve the unit of cold water. To prevent this from
happening, open fully the main valve on the cold supply to the building and throttle back
the control valves to the other cold water outlets.
7
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