Noritz NRC1111-DV Owner's Manual

Also see for NCC199-DV: Instructional manual Owner's guide Installation manual Service manual Owner's guide

Noritz NRC1111-DV Owner's Manual Manual pdf 22 page image

22Periodic MaintenanceIf the water drain valve (with water filter) is covered with debris, the hot water may not runsmoothly, or the unit may put out cold water. Check and clean the filter as explained below.* To avoid burns, wait until the equipment cools down before draining the water.The appliance will remain hot after it is turned off.Water Drain Valve (with Water Filter)1. Close the water supply valve.2. Open all hot water fixtures.3. With a bucket ready, remove the inlet and outletdrain plugs (about 0.45 gallon (1.7 L) will drain out)4. Take the water drain valve (with water filter) out ofthe inlet. (See illustration to right).5. Clean the water drain valve (with water filter) witha brush under running water.6. Replace the water drain valve (with water filter)and close the drain plugs.(Take care not to lose the packing.)7. Close all hot water fixtures.8. Open the water supply valve and check thatwater does not leak from the drain plugs or waterdrain valve (with water filter).Optional Maintenance* Isolation valves may be purchased as anaccessory from Noritz.They allow for full diagnostic testing and easyflushing of the system.* The kit includes two full port isolation valvesand a pressure relief valve for the hot side.Contact Noritz for more information.Isolation ValvesWater SupplyValveInletPackingWater drain valve(with water filter)Regular Maintenance-2Water IntletWater OutletDrainHot WaterService ValvePressure Relief ValveCold WaterService Valve(Ex. NRC1111-DV)