Jensen RAINSWITCH Quick start guide

1 10/25/2018
643 SO. DUGGAN AVENUE • AZUSA, CALIFORNIA 91702-5185
[phone] • [phone] • FAX [phone]
RAINSWITCH Retrofit/Upgrade Instructions
to convert a JIC-RS100-A to JIC-RS100-B
Purpose of Retrofit:
The “-A” version rainswitch used a Pepperell-Fuchs capacitance sensor,
which is a 30mm green plastic proximity sensor. Due to its lack of repeatability
from apparent sensitivity to installation ground, and susceptibility to fouling from
dirt and debris collecting on the face of the sensor, a redesign was necessary.
This level sensor activates a relay mounted in the “Pilot Station”.
The “-B” version rainswitch uses a conductivity sensor probe with a ½”
MNPT connection to the rainswitch. A level controller is mounted in the “Pilot
Station” in place of the relay used in the “-A” version. This controller sends a very
small current to the probe, so the circuit is completed as soon as water touches
the probe, and after the 3 second delay, switches the contacts in the controller.
This has proven to be extremely repeatable, and not subject to fouling.
Parts Required:
#JIC-RLSK Level Sensor Kit, consists of two parts:
#R-PHST-12GT-2 Level Probe
#JIC-RS ADAPTOR, 30mm female x ½” FNPT, 316SS
#WFLT-DM-2011-TD Level Control Relay. Usually remote mounted as existing
Pilot Station is too small for this relay.
OR NEW PILOT STATION:
#JIC-AT1PB2L-C Auto-Reset Pilot Station
#JIC-1PB2L-C Manual Pilot Station

2 10/25/2018
643 SO. DUGGAN AVENUE • AZUSA, CALIFORNIA 91702-5185
[phone] • [phone] • FAX [phone]
Installation:
1. Turn OFF all power to the pilot station.
2. Remove the relay in the pilot station.
3. Remove the 30mm “GREEN” level sensor on the rainswitch.
4. Install the replacement probe, using the 30mm x ½” MNPT adaptor. No
sealing tape or compound is necessary as a watertight connection is not
necessary.
5. Install the level controller in the pilot station if there is room. You may find
it easier to install the controller in another enclosure and wire it to the
existing pilot station as this controller is larger than the relay you have
removed.
6. Wire the controller per the appropriate wiring schematic.
Dwg# JICAT1PB2L-C for JIC-AT1PB2L-A Automatic Pilot Stations
Dwg# JIC1PB2L-C for JIC-1PB2L-A Manual Pilot Stations
Continuity check all connections to confirm correct wiring prior to
repowering the pilot station.
7. The drawings and manual are available for download from
WWW.RAINSWITCH.COM.
Conclusion:
You will now have a vastly improved operating rain diversion system, with
far less maintenance problems.