Sterling IFS10, Installation Instructions And Owner'S Manual

Page: 9 / 26

8
STEP 6: Shut off water at main supply. Relieve pressure by opening nearest faucet. On private well
systems, turn off power to pump and drain pressure tank. SHUT OFF POWER OR FUEL
SUPPLY TO WATER HEATER.
STEP 7: Cut main supply line as required to fit plumbing to inlet and outlet of bypass valve. DO NOT
PLUMB INLET AND OUTLET BACKWARDS. Piping should support control valve in an
upright position. Do not apply heat to any fitting attached to the bypass or control valve. If
outside faucets or other locations are to be supplied with untreated water, install a spring check
valve after the tee for the untreated branch of plumbing and before the IFS unit.
STEP 8: Use rigid drain line or polyethylene tubing ( NO VINYL TUBING ) to run drain line from control
valve discharge fitting to floor drain or sump pit capable of handling the backwash rate of the
filter (refer to specifications and flow rate on page 9).
DISCHARGE END OF THE DRAIN
LINE MUST BE FIRMLY SECURED! Failure to properly secure the drain line will result in the
drain line “whipping” and possibly flooding the area causing water damage. There must be an
air gap at the end of the drain line to prevent siphoning of waste water and meet plumbing
code. Total leng
th of drain line should be 15’ or less. AVOID OVERHEAD DRAINS.
STEP 9: Use a garden hose or bucket to fill the media tank with water through the fillport. Ensure
media has been cleaned from fillport threads and install cap securely with wrench provided.
STEP 10: Place the
bypass valve should be in the “Bypass” position (refer to Bypass Valve, page 5).
Open main supply valve or turn on power to pump on private well systems.
STEP 11: Press and hold the REGEN button until the drive motor starts. Use the REGEN button to
advance to a BACKWASH cycle. Unplug the transformer from the electrical outlet.
STEP 12: Open bypass valve ¼ of the way allowing unit to fill both mineral tanks slowly. Air and water
will begin to discharge from the drain line once both tanks have filled. When air stops and only
water is discharging from the drain, gradually open the bypass until it is fully in the service
position (both inlet and outlet). Allow the unit to backwash until the drain water runs completely
clear.
STEP 13: Plug the transformer back into the electrical outlet. Use the REGEN button to advance to the
second BRINE DN cycle (10 minute countdown) to allow air to be drawn into the filter tank.
STEP 14: When the control valve returns to the service position, set the day override for every third day
or more frequently, if required (refer to programming procedures, page 9).
STEP 15: Set the current time of day on the timer (note AM and PM) and set the hardness of the water.
STEP 16: Check for leaks and correct as necessary.
STEP 17: Turn power or fuel supply back on to water heater.