Maintenance; Draining The System; Cleaning The Flow Piston - Franklin Electric INLINE 400 Installation And Operation Manual

MAINTENANCE

Risk of bodily injury, electric shock, or property damage.
• Disconnect power to the unit before attempting to perform maintenance functions.
• All maintenance functions should be performed by a qualified service professional.

Draining the System

Disconnecting the pump will not necessarily drain all other parts of the piping system. If there are any con-
cerns with the proper procedure or necessity of draining the suction plumbing, contact a water systems pro-
fessional. All Inline 400 systems, piping, and water tanks exposed to freezing weather should be drained
when freezing conditions are expected. There is a drain plug on the bottom of the unit that may be used to
drain the disabled (powered off) system. If there are any concerns with the proper procedure to drain the
system's pressure tank, contact the tank manufacturer for assistance.

Cleaning the Flow Piston

1. Control Head
2. Phillips Head Screws
3. Flow Cap
4. O-ring
5. Flow Piston
The flow piston may
become clogged with
mineral deposits or
debris.
To clean the Flow Pis-
ton:
1. Disconnect the unit from incoming power.
2. The system may be under pressure. As such, close both the inlet and outlet valves and drain all pressur-
ized water from the system prior to performing maintenance on the flow switch (described above).
3. Remove the six Inline 400 cap screws and remove the cap.
NOTE: Be careful when removing the control cap, as there is an electrical cable attached to the head.
4. Remove the three Phillips screws that hold the flow cap in place.
5. Remove the Flow Cap. The O-ring may come off with the cap or may remain in the head. Remove the
O-ring and make sure it is free of debris. Place it back on the bottom of the Flow Cap.
6. Use a small metal object, such as a screwdriver or nut driver, to retrieve the magnetic Flow Piston from
the cavity (it is magnetic and will stick to the metal object).
7. Clean the Flow Piston with a clean cloth.
8. Clean any debris or residue from the head where the Flow Piston is inserted.
9. Replace the Flow Piston into the Control Head. Press the Flow Cap with the O-ring firmly into the head.
Tighten the three screws to 15 in-lbs (1.7 N-m). Do not over tighten.
10. Replace the Inline 400 cap and tighten six screws to 15 in-lbs (1.7 N-m).
11. Re-calibrate control head (see "Re-calibration of Control Head" on page 18).
MAINTENANCE
Draining the System
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