WPLLD Site Prep and Installation Guide
Verifying WPLLD Communications Capability
3-2
IMPORTANT! We strongly recommend that you use a separate dedicated 2-pole circuit breaker for the 240 Vac
source (size in accordance to NEC requirements) because if you use a circuit breaker which is also supplying power
to a submersible pump, any time the power to this pump is disabled it will result in a shutdown of all pumps which
have WPLLD sensors installed.
Figure 3-1. WPLLD AC Interface Module
Verifying WPLLD Communications Capability
IMPORTANT! This procedure must be performed prior to installation of the WPLLD Sensors and valves.
Because the AC Interface Module receives data from the WPLLD Sensors on the AC power lines, you MUST verify that
there is not an excessive noise level present on the lines prior to completing the system installation. Excessive noise will
cause WPLLD Comm alarms, resulting in line shutdowns.
Verification is done as follows:
1. Turn On all electrical equipment at the site and leave it on during this entire procedure to ensure an accurate test.
Your electrical equipment may include car washes, fluorescent, neon, or high-intensity discharge (HID) lights, and
other wireless devices.
IMPORTANT! Failure to turn on all equipment could result in a WPLLD COMM ALARM, which will disable your
submersible pumps.
COMM XMIT
1
2
3
4
AC RATINGS
240 VAC
0.125 A
WPLLD AC INTERFACE MODULE
AC
L1 L2
wplld/acwplldwir.eps
1
2
3
4
Legend for numbered boxes in Figure 3-1:
1
Outputs communications from WPLLD transducers to WPLLD Comm Module in console.
2
XMT LED flashes when information is received from a WPLLD transducer.
3
Number of LEDs lit indicate signal strength received from WPLLD transducers. At least 3
LEDs should be lit, when receiving transducer communications, indicating good signal
strength.
4
Receives WPLLD transducer communications over pump 240 Vac wiring.
