Installation and Service Manual – Metered Carbon Filter
Page 36
Copyright © 2012 Applied Membranes, Inc. All Rights Reserved.
Spacer Stack Assembly
For spacer stack identification refer to drawing in valve drawings section of this manual
.
To access the spacer stack assembly remove the drive assembly, drive cap assembly and piston. The spacer stack
assembly can be removed easily without tools by using thumb and forefinger. Inspect the black o-rings and clear lip seals
for wear or damage. Replace the entire stack if necessary. Do not disassemble the stack.
The spacer stack assembly may be chemically cleaned (dilute sodium bisulfite or vinegar) or wiped with a soft cloth.
The spacer stack assembly can be pushed in to the control valve body bore by hand. Since the spacer stack assembly
can be compressed it is easier to use a blunt object (
⅝
” to 1-
⅛
” in diameter) to push the center of the assembly into the
control valve body. The assembly is properly seated when at least four threads are exposed (approximately
⅝
:”). Do not
force the spacer stack assembly in. The control valve body bore interior can be lubricated with silicone to allow for easy
insertion of the entire stack.
Reattach the drive cap assembly and piston(s) and the drive assembly.
After completing any valve maintenance involving the drive assembly or the drive cap assembly and pistons unplug power
source jack from the printed circuit board (black wire) and plug back in or press and hold SET and DOWN buttons for 3
seconds. (The cover button may have other names like “SET HOUR”, “CLOCK” or “SET CLOCK” but the circuit board is
labeled with SET.) This resets the electronics and establishes the service piston position. The display should flash all
wording, then flash the software version and then reset the valve to the service position.
Water Meter
The water meter assembly is connected to the PC board by a wire. If the entire water meter assembly is to be replaced,
remove the control valve cover and disconnect the power source and water meter plugs from the PC board. Unlatch the
drive assembly and lean it forward. Unthread the water meter wire from the side of the drive assembly and through the
drive back plate. To reinstall, rethread the water meter wire through the drive back plate and the side of the drive
assembly. Reattach the drive assembly and the water meter and power plugs.
This Water Meter should not be used as the primary monitoring device for critical or health effect applications.
Operating Pressures: 20 psi minimum, 12 psi maximum; Operating Temperatures: 40°F Minimum, 110°F Maximum
The water meter wire does not need to be removed from the PC board if the water meter is only being inspected and
cleaned. To remove the water meter assembly, unscrew the meter cap on the left side of the control valve. Pliers may be
used to unscrew the nut if necessary.
Drain Line Flow Control
To access the drain line flow control remove the locking clip by pulling it straight out. Pull fitting out and replace the locking
clip so that it is not misplaced. The drain line fitting is pressed in and has an o-ring seal.
In the ¾” elbow, the white flow control retainer is pressed in and has an o-ring seal. The retainer can be removed by
rotating and pulling. The flow control can be removed by prying upward with a small blade flat screwdriver in one of the
slots on the side. The drain line flow control and retainer can be chemically cleaned in dilute sodium bisulfite or vinegar, or
replaced. Do not use a wire brush to clean the flow control or the washer. The washers are identified with three numbers,
which correspond to the flow rate. When reinstalling make sure the identifying number and the rounded inside diameter on
the washer is visible when seated in the retainer. The white flow control washer retainer can also be removed and
cleaned. Push the retainer in firmly when reinstalling.
