1128500 WPC 2000 User Manual
2-10 Installation
If you have ordered a Ross or Herion DSV with your WPC 2000, refer to the appropriate
wiring diagram at the end of this manual and to the documentation that came with your valve
to install the DSV. Note the following requirements:
• Ross DM2
To wire the Ross DM2 DSV, refer to figures 6 and 17 at the back of the manual.
The Reset circuit requires that a diode be installed across the coil in the solenoid to provide
noise suppression (see Figure 17). This wiring has already been done for you in the
Hirschmann connector for the 24 Vdc Reset solenoid, which is provided along with two
Hirschmann connectors for the 120 Vac valve solenoids in the Ross DM2 kit.
The Reset solenoid connector comes in two styles. One has a black shell with an electrical
circuit including a diode symbol ( ) printed on it, the other a transparent shell with a red
LED indicator visible inside. You install this connector on the Reset solenoid at one end of
the DSV. The Reset solenoid connector is the only connector at this end of the DSV. The
other two connectors are installed on the two valve solenoids at the other end of the DSV,
which has three connectors altogether, including one for the DSV monitor that is already
installed. You wire the Reset solenoid and valve solenoid connectors to WPC 2000 as
shown in Figure 17.
DSV MUFFLER CLOGGING OR LOOSENING
• Clean the DSV muffler periodically. A clogged muffler can degrade Stopping Time.
• Tighten the muffler securely to the valve body. Periodically check to make sure the muffler is
securely installed. Vibration may cause it to loosen and fall. To tighten the muffler, secure the
valve body, hold the muffler with both hands and turn clockwise as tightly as possible without
stripping the threads.
Failure to comply with these instructions could result in death or serious injury.
ALL SIGNAL GROUNDS MUST BE CONNECTED THROUGH MAIN PROCESSOR BOARD
Connect all signal grounds through pins on the WPC 2000 Main Processor board.
MAKE SURE TO INSTALL NOISE SUPPRESSION DEVICES
Noise suppression devices (Pactrons) are provided in the WPC Installation Kit. Be sure to
install them across the two Hirschmann connectors for the 120 Vac valve solenoids as
shown in Figure 17.
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