Culligan International Water Softener CSM-450-2

Warning: This service requires trained personnel with PPE!

Is the Backwash Flow Controller plugged with scale, rust, or other foreign material?

If the Backwash Flow Controller is not plugged, report the status to the maintenance team and stop the procedure

Was the cleaning of the Backwash Flow Controller successful?

Enter the backwash flow rate after cleaning

Sign off on the Backwash Flow Controllers Service

NOTE The cam gear is designed to only be installed one way onto the pilot valve spool.

The flat portion of the pilot valve spool must align with the flat side of the cam gear’s pilot receptacle. When properly positioned, the cam will snap into place on the pilot valve spool.

Replace the pilot drive motor assembly making certain that the gears are properly engaged. Securely tighten the three screws.

When installing the replacement pilot valve body to the bottom of the MVP enclosure, make certain the word POSITION faces the left side when viewed from the front. Securely tighten the two panhead machine screws with nuts removed in step 4 of the 'Pilot Valve Assembly Removal' on page 72.

Reconnect the four quick connect wire leads to the appropriate microswitches and the motor leads to the primary circuit board.

Reconnect the pilot valve tubing to the pilot valve body.

NOTE Refer to the appropriate tubing diagram located in this manual.

Slowly open the manual inlet isolation valve.

Slowly manually rotate the position dial clockwise back to position #1 allowing water to flow to the drain. Bleed the air from valves 1 and 4 of the Brunermatic valve. Allow Backwash to continue for 10 minutes.

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

Visual inspection of the cam gear and microswitches for any wear

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

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

Backwash Flow Control nipple replaced with compression fitting downstream of the flow washer

Flexible tubing connected to the compression fitting in the side of the Backwash Flow Control nipple

Clean-out plug inserted and tightened