Zip Aquapoint III AP3/100 Installation, Maintenance And User Instructions

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Contents

Zip Aquapoint III AP3/100 Installation, Maintenance And User Instructions Manual pdf 17 page image

AP3/30_AP3/50_AP3/80_AP3/100_Instructions. V1.01 Page 15 August / 2012DrainingTo drain the unit:1. Isolate the electrical supply.2. Isolate the mains cold water supply to the unit.3. Open a hot water tap.4. Remove the plug from the drain point on the heater.5. Connect a suitable hose to the drain point to allow the contents to be drained safely.6. Open the drain valve and allow the unit to drain.De-InstallationTo de-install the heater:1. Switch off and disconnect the electrical supply.2. Close the mains water supply isolating valve.3. Drain the heater as described in “Draining”.4. Disconnect the cold water inlet connection from the manifold assembly.5. Disconnect the hot water supply pipe from the heater outlet.6. Remove the heater.Fault Possible Cause SolutionRegular, intermittentwater dischargefrom tundish.continuedThermostat failure.Isolate the heating system and checkthermal controls when dischargeceases. Replace thermostat if faulty.Continuous waterdischarge from thetundish.Pressure reducing valve notoperating correctly.Check with pressure gauge and replaceas necessary.P&T relief valve not operatingcorrectly. Check and replace if faulty.Expansion relief valve notoperating correctly. Check and replace if faulty.No water flow fromhot taps.Cold water mains supplyisolated. Restore mains supply to the heater.Integral line strainer inpressure reducing valve hasbecome blocked.Check and clean as necessary.Pressure reducing valveincorrectly fitted.Refit correctly with arrows in directionof flow.Water from hot tapsis cold.Power supply not switched on. Check and switch on.Over temperature cut-out hasoperated.See fault “Over temperature cut-outoperates” above.Faulty element. Check and replace as necessary.Thermostat failure. Check and replace as necessary.

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