Tue 22 Mar, 2011 07:29 am
I have a brass valve whole house carbon tank built in 2000. The valve/timer model is RFB1054 C 24V/60HZ. The TC upgrade is a digital timer that goes in the same timer box as the old electro-mechanical one. You remove the nut in the box that retains the motor shaft, back the motor out with the shaft, replace one of the cams, push the motor and shaft back in and wire in the new timer. You retain the brass valve except for the one cam that gets swapped out. This can all be performed with the valve in place on the tank and the tank in service, assuming that you have the room to remove everything. Here are some pictures of my set-up:
The upgrade was very easy and took 30 minutes. Take out the old wiring and install the new wiring while the motor is pulled back and the old front cam is out. It will make getting to the reed switch contacts easier.
Once you finish the install and hit the manual regeneration button to verify operation, the unit will keep track of the recent cycle and will not allow another cycle in the automatic timer mode, even if you fake the time and set it to run from the clock settings. Just set up the correct local time and regeneration time and the system will function at the next interval as intended. You just can't verify automatic operati0n right after a manual one.
Do you have pictures of the conversion parts and the installation yet?
I did not take any pictures. You take out the entire timer assembly, all of the wires, and you replace the cam behind the timer box with the new blue one. This is done by removing the motor shaft nut, pulling the motor and shaft back until it clears the forward cam. Remove the forward cam, replace it with the new blue one and push the motor and shaft back in place.
Pass the new wire harness through the back of the box. Two yellow wires on each motor spade connector, two wires on the middle reed switch (black and brown), and the combo connector with three wires on the forward reed switch at the new blue cam.
Inside the box at the other end of the wire harness you connect the three modular plugs to the new circuit board and the two black power wires to the power connection spades at the back of the box.
The circuit board is attached to the back of the new face plate which has an LED readout and some push buttons (menu, menu up and down, manual regen). You remove the old hinged cover and screw the new faceplate with the outer trim ring into the face of the timer box with two screws into the top corners of the box. You are left with a flat black plastic face plate more or less flush with the front of the box and the flip up lid permanently removed.
You program the unit type, the backwash time, the rinse time, the local time, the time for the cycle, and the number of days between cycles.
The TC upgrade has worked flawlessly for the year since installation. It's very easy to program and use and the display is easy to read. I would recomend this to anyone considering an upgrade or needing a solution to a problem mechanical timer.