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Maytag MWF4100AWS Operation And Maintenance Manual

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MAYTAG Whole Home Water Filtration System Owners Manual MA1-5

November 2003

29

Prefilter, clean and set aside the Stainless Steel Prefilter.

9. Fill the System with approximately 16 litres (4 US gallons) of –50

o

C (-58

F) propylene glycol based plumbing antifreeze to 2” below the top of the

prefilter cavity.

10. Unplug the outlet line on the System side to “open the outlet” by

removing the ¾” PVC plug. Remove approximately 4 litres (1 US gallon)

from the System into an empty propylene glycol based container. The

fluid in the System must be 2” above the bottom of the prefilter cavity.

Close the outlet line by replugging the outlet line with the ¾” PVC plug.

Discard the collected fluid in accordance with the manufacturers

directions and save the container.

11. Save all empty antifreeze containers for the spring.

12. If using a Stainless Steel Prefilter, replace the Stainless Steel Prefilter.

13. Replace the System Cap using the Cap Wrench.

14. Check the drain plug and the outlet plug are closed snug. Make sure there

are no leaks. The System is ready for the winter.

Note: The preservative will provide protection against freezing down to –40

°

C as

long as the proportion of propylene glycol to water is correct. The amount and

concentration of the propylene glycol solution has been selected to take into

account water that is not easily drained from the System. This procedure does

not protect the rest of the house from freezing, it only provides necessary

precautions for the MAYTAG Whole Home Water Filtration System.

Never mix MAYTAG MC1 Cleaning Solution with chlorine bleach.

Spring

startup

and

cleansing

1. Drain the propylene glycol solution from the System by removing the

outlet line plug. Drain into the saved antifreeze containers.

2. Dispose of the propylene glycol solution in accordance with the

manufacturers directions.

3. Remove the drain plug from the drain valve.

4. Reconnect the drain and outlet lines. (Refer to Figures 2, 3 and 4 if

necessary.) Ensure the connections and the hose clamp on the drain hose

are snug. Ensure there are no kinks in the drain line.

5. Open the inlet ball valve and fill the System. Air will escape through the

air vent on the System cap.