AmeriWater 00HC-4090, Operation & Maintenance Manual

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REPLACEMENT INSTRUCTIONS LAB STORAGE TANKS
27 98-0123 Rev E
12 REPLACEMENT INSTRUCTIONS
12.1 Preparation
1.
Power down unit and remove the line cord from the power source.
2.
Turn off the incoming water to the storage tank.
3.
Close the outgoing and return valves on the loop.
4. Relieve the pressure in the system by opening the relief valve on the post filter sample port.
5. Drain the tank (if necessary).
12.2 Pump Replacement
1.
Prepare for replacement by following the instructions in section 12.1.
2.
Remove the 4 bolts that secure the pump to the base of the storage tank and set aside for use
on the replacement pump.
3.
Place a small catch basin beneath the union on the pump discharge and detach this from the
pump, allowing the water to drain.
4. Detach the union from the pump inlet.
5.
Remove the fittings from the pump for re-use on the replacement pump.
6.
Remove all packing material from the replacement pump and place on the base of the storage
tank in the same orientation as the original pump.
7.
Prepare fittings removed from the original pump with Teflon tape and install into the replacement
pump.
8. Connect the unions to the pump inlet and discharge.
9. Secure the pump to the base with the original bolts.
10.
Close the sample port on the filter housing, open all valves to the loop and return water to the
device.
11. Return the line cord to the power source.
12.
Fill the storage tank with 50 gallons of water and prime the pump.
13.
Disinfect per the instruction in section 6.
12.3 Resistivity Cell Replacement
1. Prepare for replacement by following the instructions in section 12.1.
2. Open the controller cover to gain access to the resistivity controller.