Peerless Water 30 CME Series - Service Manual - Manual (Page 13)

SERVICE INSTRUCTIONS CONTINUED
WATER METER OR METER PLUG
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 remove 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. If
no water meter wire is visible, then a plug is installed and not a water meter. 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 assembly, unscrew the meter cap on the left side of the control valve. Pliers may be used
to unscrew the nut if necessary. With the nut removed, a slot at the top of the water meter is visible. Twist a
flat blade screwdriver in the slot between the control valve body and the meter. When the meter is part way out
it is easy to remove the water meter from the housing. Once with water meter is removed from the control
valve body, use your fingers to gently pull forward on the turbine to remove it from the shaft.
Do not use a wire brush to clean. Wipe with a clean cloth or chemically clean in dilute solution of bisulfite or
vinegar. The turbine can be immersed in the chemical. Do not immerse electronics. If the turbine is scored or
damaged, or the bearings on the turbine are worn, replace the turbine.
Do not lubricate the turbine shaft. The turbine shaft bearings are pre-lubricated. Do not used Vaseline, oils, or
other unacceptable lubricants on the o-ring. A silicone lubricants may be used on the black o-ring.
Snap the turbine on the shaft and reinsert the water meter into the side slot. Hand tighten the nut. Do not use
a pipe wrench to tighten nut.
BYPASS VALVE
The working parts of the bypass valve are the rotor assemblies that are contained under the bypass valve
caps. Before working on the rotors, make sure the system is depressurized. Turn the red arrow shaped handles
towards the center of the bypass valve and back to the arrow direction several times to ensure rotor is turning
freely.
The nuts and caps are designed to be unscrewed or tightened by hand. If necessary a pair of pliers can be
used to unscrew the nut or cap. Do not use a pipe wrench to tighten or loosen nuts or caps. Do not place
screwdriver in slots on caps and/or tap with a hammer. To access the rotor, unscrew the cap and lift the cap,
rotor and handle out as one unit. Twisting the unit as you pull it out will help to remove it more easily. There are
three o-rings: one under the rotor cap, one on the rotor stem and the rotor seal. Replace worn o-rings. Clean
rotor. Reinstall rotor.
When reinstalling the red arrow handles be sure that:
1
O-rings on both rotors face to the right when being viewed from the front of the control valve when the
handle pointers are lined up with the control valve body arrows; or
2
Arrows point toward each other in the bypass position. Since the handles can be pulled off, they could
be accidentally reinstalled 180° from their correct orientation. To install the red arrow handles correctly, keep
the handles pointed in the same
direction as the arrows engraved on the control valve body while tightening the bypass valve caps. After
completing, any valve maintenance, press and hold NEXT
and REGEN buttons for 3 seconds or unplug power source jack (black wire) and plug back in. This resets the
electronics and establishes the service piston position. The display should flash all wording then flash the
software version (e.g. 154) and then reset the valve to the service position.