Culligan International Water Softener CSM-900-3

Refer to steps 1 thru 5 under 'Pilot Valve Assembly Removal'

Pilot valve drive motor assembly is held in place with 3 panhead screws

Upload a photo of the disconnected motor leads

NOTE: At this point it is also advisable to visually inspect the cam gear and microswitches for any wear indicating the need for replacement

Replacement pilot valve drive motor assembly installed and gears and assembly are properly engaged

Upload a photo of the securely tightened 3 screws and reconnected motor leads

Pilot valve body assembly reinstalled in the enclosure

Pilot valve position faces left when viewed from the front of the controller

Upload a photo of the reconnected four quick connect wire leads to the microswitches

Complete shut down procedure is as follows:

1. Disconnect the electrical power to the MVP controller.

2. Make certain that the lines you shut off are for the system you are performing service on.

a. Open by-pass valve if one is available.

b. Close the inlet isolation valve.

c. Close the outlet isolation valve.

d. Close the manual brine valve (If installed).

e. Close the separate source isolation valve if one is available.

f. Any external source of pressure to the pilot valve.

Flow patterns for the regeneration and service cycles are governed by the individual diaphragm valves. These valves close when under pressure and open when pressure is vented. Each is identified by a number cast on the front of the main valve body.

Control tubing connects each numbered valve with the MVP Controller.

NOTE: #17 is always closed on multiple tank systems. * See note below about port conversion.

NOTE: The system provided may utilize an older version of pilot valve and/or Brunermatic Valve port numbering. Evidence of the old numbering scheme is noted by the use of port number 17 on the pilot valve and/or Brunermatic valve.

If the numbering scheme of the pilot valve does not completely match the Brunermatic valve, the following chart should be referred to for conversion purposes.

Upload a photo of the main valve body

Upload a photo of the MVP Controller

Upload a photo of the pilot valve

Upload a photo of the Brunermatic valve

Warning: This procedure requires trained personnel with PPE!

Is the water supply containing iron?

If yes, regenerate the softener before sanitizing to remove iron from the resin.

CAUTION! HAZARD FROM TOXIC FUMES! CHLORINE BLEACH AND COMMON IRON CONTROL CHEMICALS MAY GENERATE TOXIC FUMES WHEN MIXED.

Does the unit use Culligan Sofner-Gard or other compounds containing sodium hydrosulfite, sodium bisulfite, or any other reducing agent?

If yes, disconnect the device feeding the chemical(s) and manually regenerate the unit before sanitizing.

Does the softener salt contain iron control additives?

If yes, do not use this procedure.

Upload a photo of the clean-out plug before removal

Clean-out plug removed successfully

Upload a photo of the flow washer area (Figure 108)

Flow washer area inspected successfully

Upload a photo of any foreign material lodged in or near the flow washer(s) (Figure 109)

Foreign material removed successfully

NOTE: AVOID USING A SHARP OBJECT WHICH MIGHT CUT OR DAMAGE THE RUBBER FLOW WASHER(S). SHOULD IT NOT BE POSSIBLE TO CLEAR THE CONTROLLER THROUGH THE CLEAN OUT PLUG, REMOVAL OF THE FLOW CONTROL NIPPLE WILL BE REQUIRED TO GAIN BETTER ACCESS TO THE FLOW WASHER AREA.

Flow control nipple removed successfully, if necessary

Upload a photo of the disconnected flexible tubing from the compression fitting, if necessary