Erie 541N Series, Technical Manual

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541N SERIES
Erie Water Treatment Controls – Belgium
Page 19
Body stem assembly
1. Remove the valve head; refer to Parts Replacement “Valve head”.
2. Pull forward the main diaphragm; put 2 fingers behind the membrane and pull out
the body stem assembly.
3. Inspect the centre check disc rubber seal for wear; clean or replace if necessary.
4. Lubricate the O-rings of the seat insert.
5. Install the body stem assembly.
6. Install the seat insert with 1of the 2 flats facing towards the top of the valve body.
7. Reverse the procedure for reassembly; make sure the drain port O-ring is securely
installed in the valve body groove.
Check disc
1. 541N94/N99 only: remove the brine line from the brine elbow.
2. Disconnect the connector from the backwash/refill solenoid.
3. Remove the 4 screws from the back cap.
4. Place a hand under the back cap and remove the back cap; the check disk spring and
check ball (541N94/N99 only) might fall into your hand.
5. Remove the check disc from the body stem assembly.
6. Inspect the check disc rubber seal for wear; clean or replace if necessary.
7. Install the check disc on the body stem assembly and the check disc spring onto the
centre post of the check disc.
8. 541N94/N99 only: install the check ball in the refill cavity of the valve body.
9. Make sure the back cap gasket is securely installed in the back cap grooves.
10. Align the mark on top of the back cap with the mark on the valve body and install the
back cap with the open end of the check disk spring onto the centre post of the back cap.
11. Install the 4 screws and tighten them.
12. Install the connector to the backwash/refill solenoid.
13. Install the brine line to the brine elbow.
Riser insert
1. Disconnect the flow meter connector from the outlet elbow.
2. Remove the inlet and outlet elbows from the control valve.
3. Remove the drain hose from the drain solenoid and the brine line from the brine elbow.
4. Remove the control valve from the resin tank.
5. Unscrew the upper distributor from the control valve.
6. Remove the 2 screws holding the adapter ring and riser insert in place.
7. Lift away the adapter ring.
8. Pull the riser insert out of the valve body.
9. Check the O-ring on the riser insert; clean or replace if necessary; lubricate lightly.
10. Install the riser insert; press it in firmly.
11. Install the adapter ring and tighten the 2 screws.
12. Make sure the O-ring in the riser insert of the control valve is in the correct position;
screw the upper distributor onto the control valve.
13. Lubricate the threads, the top of the riser tube and the tank O-ring of the control valve.
14. Lower the control valve straight down onto the riser tube and screw it onto the tank.
15. Install the drain hose to the drain solenoid and the brine line to the brine elbow.
16. Install the inlet and outlet to the control valve.
17. Install the flow meter connector to the outlet elbow.