WILKINS WKZW3-12-1F 12 INCH WINTERIZER VALVE ASSEMBLY FOR BACKFLOW DEVICES:

1. Fully close the Winterizer shut off with the control key
   by turning the key fully clock-wise.
   
2. Remove the 1/2 inch drain plug from the outlet casting.
   
3. Drain the water from the system. Allow for complete air drying of the system piping, and backfl ow preventer.
   
4. If preferred regulated compressed air can be used to
   blow down any moisture within the piping system.
   
5. When satisfi ed with the moisture removal from the piping system, re-install the 1/2 inch drain plug into the winterizer valve. This concludes the winterizing
   procedure.

1. Drill a 2" diameter hole into the wall and insert the inlet end through the wall.
2. Connect the inlet piping to the inlet tailpiece . Allow for
   a ball valve or other shut off device to be on the inlet
   source side of the Winterizer. When using copper
   sweat components for the inlet connection make sure
   the Winterizer is fully open by turning the inlet hex with
   the control key fully counter clockwise until the key
   stops.
3. Determine the system requirements for the Winterizer. (i.e. Pressure Vacuum Breaker, Reduced Pressure Principle Backflow Preventer or Double Check Backflow Preventer)
4. Secure the Winterizer to the wall using the cast
   baseplate on the unit. Suggested size of the fasteners is 1/4 inch diameter at 4 each for fastening the corners of baseplate.
5. Close the winterizer with the control key by turning the
   key clockwise.
6. Turn on the inlet supply shut-off valve to the Winterizer.
7. Slowly open the Winterizer with the control key and
   flush the system of any debris.
   Make sure that the Winterizer is fully open until the key
   stops.

Note: The winterizer is not designed to be a throttling control valve. It should be either fully open or fully closed.

For complete instructions, click here.