
The relief pressure marked on the relief valve must not exceed that stated on the rating plate of the water heater. IMPORTANT: The relief valve must be connected to a discharge or drain pipe no smaller in size than the outlet of the relief valve. This pipe must not be valved, plugged, allowed to freeze, or be restricted in any way. Terminate close to a drain of adequate capacity. The relief valve is necessary to avoid excessive water pressure or water temperature from developing. Such a conditio