Filter
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TDS Reduction Filter (M)
Replacement Procedure [annually]
1. De-pressurize the system as instructed above.
2. Locate the TDS reduction filter. To remove the TDS reduction filter, turn to the left 1/4 turn. Pull down
to remove.
3. Disconnect reject tubing by pushing in the white collet on plastic fitting to release the tubing (see page
9). Discard the used cartridge.
4. Remove the plug from the plastic fitting on the new cartridge and connect the reject tubing.
5. Insert the new filter by aligning the tabs with the filter head. Push up to insert and turn to the right 1/4 turn.
Note: The first full tank of water filtered after the filter is replaced should be discarded.
See start-up procedure, page 7.
Hardness Reduction Filter (H)
(ScaleGard™ PLUS 2 TSR150) Replacement Procedure [6-12 months]
1. De-pressurize the system as instructed above.
2. Locate the hardness reduction filter. To remove the hardness reduction filter, turn to the left 1/4 turn.
Pull down to remove and discard it.
3. Insert the new filter by aligning the tabs with the filter head. Push up to insert and turn to the right 1/4 turn.
Note: The first full tank of water filtered after the filter is replaced should be discarded.
See start-up procedure, page 7.
TDS Adjustment Filter (T)
(ScaleGard PLUS 2 STM150) Replacement Procedure [6 months]
1. De-pressurize the system as instructed above.
2. Locate the TDS adjustment filter. To remove the TDS adjustment filter, turn to the left 1/4 turn. Pull
down to remove and discard it.
3. Insert the new filter by aligning the tabs with the filter head. Push up to insert and turn to the right 1/4 turn.
Note: The first full tank of water filtered after the filter is replaced should be discarded.
See start-up procedure, page 7.
Restarting and Purging the RO System
1. Turn on inlet water valve.
2. Make sure the tank ball valve is closed.
3. Open the drain/sample valve
4. Plug in the transformer and wait for a steady stream of water to come from the drain/sample valve.
This will purge the air from the system.
5. Close the drain/sample valve and wait for pump to shut off (this will pressurize system). Check for leaks.
6. Open tank ball valve.
7. Plug in bypass solenoid valve.
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