MARLO MGT 30M, Installation, Operation And Maintenance Manual

MGT 45M – 450M 1-1/2” SINGLE NXT2

OPERATION

13

START-UP PROCEDURES

Again, make sure all plumbing is complete and tight, including drain line and brine line. Make sure all electrical  

components, including the communication cables (multi tank systems only) are properly installed and connected.

1.   Using a bucket or hose, fill brine tank with water to 2” above salt platform. Do not add salt at this time.

2.   Make sure inlet and outlet isolation valves are closed, and then turn on power to the system.

Note: Start up only one (1) tank at a time.

3.   Open the manual bypass valve. The manual inlet and outlet valves are to remain closed.

4.   Connect electrical power to the control valve by plugging in the valve. Once the valve is powered it will drive to the  

    service position. The LED light should be blue.

5.   Program the NXT controller. The water hardness, day override, time of regeneration, and time of day will need to  

    be set on site to the desired settings. (Refer to the User Mode Programming section of the manual.) The softener 

    settings are pre-programmed at the factory. Instructions for changing these settings are in the Master  

    Programming Guide section.

6.   Manually initiate a regeneration by pressing and holding the Extra Cycle button on the NXT controller.

7.   The LED light on the NXT timer should change from Blue indicating the unit is In Service color to Green indicating  

    the unit is in Regeneration.

8.   Slowly open the manual inlet supply valve of the unit that is in backwash. Do not open the valve fully. Water will  

    enter from the bottom of the mineral tank as air is expelled from the top to the drain. Full flow of water could cause  

    loss of mineral. Continue to fill slowly until all air is expelled and only water flows to the drain.

9.   When only water flows to the drain, open the inlet valve fully and backwash the unit until the water looks clean  

    when caught in a container.

10.  Press the Extra Cycle push button to advance the valve to the Brine/Rinse position.

11.  While the unit is in the brine/rinse position, check the level in the brine tank. The level should be dropping at  

    a slow rate (approximately 2” per minute). Allow the level to drop until the air check valve closes.

12. Press the Extra Cycle push button to advance the valve to the Fast Flush position. Allow the water to flow to the  

    drain until clear.

13.  Press the Extra Cycle push button to advance the valve to the Brine Tank Refill position. Allow the brine tank to fill  

    with water for the duration of the step. The water level should be 1”-2” inches above the salt platform.

14.  Press the Extra Cycle push button to advance the valve to the Service/Standby position.

15.  If applicable repeat steps 3 - 13 for the other unit(s).

16.  Fill the brine tank with the proper amount and type of salt recommended for use with the system.

17.  Close the manual bypass valve and open all outlet valves fully. The system is now in service.