Isimet RLA-1 User manual

Application:
The RLA Series Style 1 Controller is a single circuit controller used to operate remotely located 12-vdc latching
solenoid(s) for domestic water services in a Residence.
This unit is provided with ISIMET latching circuit boards that permit a 24-vac signal to latch the solenoid(s)
ON and OFF, controlling the water supply to the residence.
ISIMET RLA-1 Controller
Residential Water Leak Detection
Installation, Operations, Start-up and
Maintenance Instructions
Table of Contents:
Page
Warranty………………………………………………….. 2
Enclosure Specifications and Dimensions………………… 3
Styles……………………………………………………… 3
Model Number……………………………………………. 3
Mounting Instructions (Flush)….…………………………. 4
Mounting Instructions (Casework)..………………………. 4
Mounting Instructions (Surface Mount)..…………………. 4
Mounting the Wall Panel..………………………………… 4
Circuit Output Configurations………………………….…. 5
Monitoring Configurations………………………….…….. 5
Installing the Electrical Conduit…………………………... 6
Wiring the Unit……………………………………………. 6
Wiring Configurations.. …………………………………… 6
Operation of Unit………………………………………….. 6
Principle of Operation ………………………………………….. 7
Equipment Maintenance…………………………………… 7
Meets all Standards for Canadian Industrial Control Panels
August 2015
Doc# 18023

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ISIMET RLA Series Utility Controller
Installation, Maintenance, Operations, and Startup Instructions
Copyright © 2015 ISIMET/MAPA, LLC.
ISIMET is a trademark of ISIMET/MAPA, LLC, an affiliate of WCM Industries, Inc.
All rights reserved.
Patent 6,757,589 B1, 6,990,393 B2
This document is copyrighted. This document may not, in whole or part, be copied, duplicated, reproduced, translated,
electronically stored, or reduced to machine readable form without prior written consent from ISIMET.
Although the material contained herein has been carefully reviewed, ISIMET does not warrant it to be free of errors or
omissions. ISIMET reserves the right to make corrections, updates, revisions, or changes to the information contained
herein.
Warranty:
ISIMET will repair or replace any defective parts or workmanship of this product for a period of one year from date
of installation. The Primary Operating P.C. Board has a two year limited warranty. Damage caused by incorrect
installation or improper usage is not warranted. Failure to follow recommended installation, operation, and/or
maintenance procedures listed in this manual may void product warranty. Recovery rights shall be limited to the
total sum of the amounts paid for the product by the purchaser.
Limits of Liability:
ISIMET's liability shall be limited to costs of repair or replacement parts. The Laboratory Service Panel and Utility
Controller are not intended for usage other than those expressly described in this manual. ISIMET shall not be liable
for damage or injury caused by the improper use of the product.
ISIMET does not warrant against or assume liability for failure of operation or lack of notification to secondary
integrated monitoring systems. The system should be thoroughly tested and adjustments made at time of initial
operation. Periodic testing should be conducted by the user to assure that all components function and operate
according to specifications.
Care should be taken in the installation of this product. ISIMET shall not be liable for damage or injury caused from
the improper installation of the product.
Warranty is Subject to Compliance with Specific Installation Requirements.
EXTENDED WARRANTY:
ISIMET will extend the warranty period of the products when installation complies with all start up procedures and that a factory
authorized agent either performs or is in attendance during start-up of the system(s). Controllers, Companion and Accessory
Panels will be extended to a period of five years from date of installation. Except for ISIMET FLA, DLA, RLA and other Units
where automation systems are not common, Control System(s) must be interfaced with a building automation system or other
ISIMET approved time sequencing control for “non-use” system shutdown. All operating components of the system must be
ISIMET provided. Prescribed routine maintenance procedures must be performed per ISIMET recommendations.
All Start-up and Routine Maintenance Documentation shall be per Factory Recommendation.
Further, required start-up and maintenance procedures must be performed as directed upon all affected systems. This warranty
shall only become enforceable upon issuance of application specific Extended Warranty Document. A copy of this document
should be maintained at all times at the location of the warranted systems.
DISCLAIMER OF IMPLIED WARRANTY:
THERE ARE NO WARRANTIES THAT EXTEND BEYOND THE DESCRIPTION HEREIN. SELLER
DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY OF THE GOODS OR OF THE FITNESS
OF THE GOODS FOR ANY PURPOSE, AND BUYER AGREES THAT THE GOODS ARE SOLD “AS IS.”
NOTE: Only qualified craftsmen licensed within the governing jurisdiction to perform the work associated with this
installation should install and/or service this equipment.
Printed in the United States

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Warranty is Subject to Compliance with Specific Installation Requirements.
Specifications:
Control Panel - Stainless Steel 16 gauge
11.875 X 18.00
Wall Box – 16 gauge powder coated sheet metal
8.0 X 14.25 X 4.0
* all dimensions are in inches
.
Style
# Output
Circuits
Trans-
former
Switch\
Breaker
pcb
Fuse 1
Output Rating
(standard)
Pulse Output
RLA -1 1 @ 24 vac 2 amp 5 amp 2 amp 2 amp @ 24 vac 1 @ 12 vdc
RLA -2 1 @ 24 vac 3 amp 5 amp 3 amp 2 amp @ 24 vac 3 @ 12 vdc
Output fuse on PCB, FUSE 1 is Slow Blow. PCB circuit fuse, FUSE 3 is 500 mA Fast Acting

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Mounting Instructions: Flush Wall Mount
Two mounting flanges with screws are provided with the unit. Attach flanges as shown. Flanges can be affixed to
any two corners of the unit. Then, fasten unit between two (2) wall studs. The face of the box should be even with
the face of finished wall surface. After mounting unit, protect interior of box from construction debris.
Mounting Instructions: Surface Mount
In order to surface mount the unit, it is necessary to attach
the provided brackets to the rear of the housing. Care should
be taken to verify that the mounting means securely fastens
the unit to the wall surface. A stainless skirt is provided in
order to conceal the wall box from view.
CAUTION: Provided mounting hardware must be used
Mounting the Wall Panel:
•Verify that Unit is wired with junction box cover in
place.
•With the Door open, position the Wall Panel over the
Wall Box as shown.
•Holding panel in front of box, affix panel to box using
four (4) 8-32 stainless screws
•Close the panel and lock.
CAUTION! Do not install the panel until all wall finishes
are complete.
Wall

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WARNING!! Other pcb Jumper placements
Jumpers at JP 3, 7, 8, 10, 11, 12, 13, 14 are factory placed in order to configure the circuit board to specific functions for
the Controller. Removal and/or re-placement may cause the unit to malfunction. A jumper sets the code to accept an Alarm
System Input. No jumper will set the code to accept a monitoring input to turn the water OFF. JP 4 and JP 5 are utilized to
accept dry-contact inputs to the PCB.
Connect supply valve to pins 4 & 5.
Reset SERVICE Switch opens Supply
Valve for normal usage.
Reset OPERATION Switch opens Supply
Valve for monitoring and will close valve
upon any type of Panic or Input Signal.
Inputs:
(CON4-A) Remote Panic / Dry-contact will accept a series of
dry-contact output type monitoring devices to turn OFF the
water supply.
(CON 4-B & C) The 24-vac/dc Inputs will accept a single signal
from a sole monitoring or control device to turn OFF the water
supply.
Output Circuit Terminal:
The solenoids provided are ISIMET S-220 Series General Service Brass Valves with 12 vdc coils.
These coils are polarized and must be connected correctly to the Output Terminal in order to function as intended.
Connect Supply Solenoid to the ‘ON w/Latch Terminals.
Make connections to ‘BLK’ and ‘WHT’ pins to match instructions provided with the solenoids that are similarly color coded.
Piping and wiring for solenoids should follow details provided with the solenoids.
Monitoring Circuit- JP6
Output Configuration Jumpers
@ Panic Output
1 jumper across center two posts
= dry-contact.
2 jumpers across each pair of posts
= 24-vac output
Notification Output Terminals:
CON 5-B provides a dry-contact output.
CON 5-A provides either a dry-contact or 24-vac output
per selection at JP3. 2 jumpers provides 24-vac. A single
center jumper provides dry-contact output.

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Installing the Electrical Conduit:
Knockout holes for connecting the electrical conduits are located at the top left and right of the Wall Box.
•Connect rigid conduit for the required 120-vac electrical service.
•Connect conduit for the operating power to the upper left top of the enclosure at the junction box.
•Connect conduit for the operating power for the output to the upper right top of the enclosure.
Wiring the Unit:
Important!
Verify that the electrical supply is disconnected prior to connecting wiring to the DLA Controller.
To wire the Controller:
1. Remove the junction box cover.
2. Make final connections to the 120-vac electrical service to wiring within the junction box. Verify that line wiring
(Black), neutral (White), and ground wire (Green) are correctly connected.
Minimum recommended wire size is 14 AWG.
3. Replace the junction box cover before activating or testing the unit.
Optional Input Control circuit:
24-vac/vdc active OFF inputs can be connected at CON 4-B and 4-C (JP 11 determines 4-C usage). Refer to jumper
configuration chart Make connection from only one source at each connector terminal.
Remote Panic Input Connection:
Flow Sensors and/or moisture sensors providing dry-contact outputs are connected to the PCB at CON 4-a. Flow Sensors
should have the time delay function set to the approximate time needed by ice maker machines to cycle so that this process
will not inadvertently trip the Unit to OFF. An optional Remote Panic Button can also be connected at the CON 4-A
Optional Panic Output Terminal:
A configurable Panic output is activated at CON 5. See configuration chart and location of this connector on page 5.
Connection of the Wall Panel Plug:
The Unit is equipped with a 9 pin d-sub connector
•Turn counter-clockwise the two retaining clips at the top of the Panel, and open.
•Insert plug onto circuit header on PCB.
•Turn Power ON.
•Close the panel and lock.
CAUTION! Do not install the panel until all wall finishes are complete. Verify that the plug is configured correctly.
Incorrect insertion will prevent operation of unit.
Important!
All local codes must be followed when installing this unit and when connecting the conduit to the service panel and
making wiring connections. Do not install wiring or cable for integrated systems, remote panic assemblies or other
interface wiring within conduit for either 24-vac control or 120-vac line voltage. Each wiring system including
outputs should be housed in independent conduit and not bundled with wiring for other systems. Failure to comply
with these wiring specifics may create transient voltage at the pc board and cause system malfunction and/or failure.
Operation of the Unit:
Engage the OPERATE Switch. The circuit will activate and the panel Green LED above that switch will illuminate to
indicate that the Unit is actively monitoring the water flow within the residence. To turn OFF the Monitoring function of the
unit, engage or the OPERATE Switch to the OFF position. Once the Unit is in the OFF mode, it will be necessary to re-
engage the SERVICE ON switch in order to reactivate the service.
The Green LED above the SERVICE ON Switch will illuminate if the water service solenoid is open.
Once in the Panic Mode the SERVICE Switch must be engaged in order to reactivate service. All Input Signals must be
withdrawn prior to reactivation. If it is desired to have the water service valve ON without re-activating the monitoring
function of the unit, then engage only the SERVICE Switch.

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Principle of Operation:
The RLA Controller will operate as a monitoring device to insure that unintended water flow caused by water leakage within
a residence does not cause physical damage to the home. A flow switch with integral time delay circuit boards insure that
expected water flow during icemaker cycles and the such do not inadvertently create a scenario whereby the Unit interprets
this flow as a leak. Additionally, moisture monitoring devices can be included in the assembly whereby leakage at a water
heater or washing machine can also shut the water OFF. Upon OFF of the Unit, a 12-vad signal is transmitted to a latching
solenoid located on the main water service to the residence in order to un-latch thus closing the water supply. Outputs are
available on the circuit board that will permit the integration of other shutoff devices to protect water heaters and the likes
from continuing to operate after the water has shut OFF. To turn ON the main water supply once issues have been resolved,
press the SERVICE Switch. This unit utilizes latching solenoids that pulse ON with circuit active to open the water supply
and pulse OFF with circuit inactive to close it.
A dry-contact Input from a Building Alarm Signal connected to JP 5 on the PCB will turn ON the Unit, placing it in the
OPERATE Mode. Removal of this signal will turn OFF the OPERATE Mode and turn ON the SERVICE ON Mode.
Equipment Maintenance:
The RLA Series Controller should have annual inspections.
ISIMET recommends that you periodically conduct a brief test of the system to verify that the output circuit performs as
intended.
If examination of the unit indicates tampering, ISIMET recommends that you first review the installation and wiring
portions of this manual prior to placing the unit in service.
ISIMET recommends that piping systems be thoroughly flushed and cleaned and tested for leaks prior to placing the
system into use. Periodic testing of these solenoids will assure that the piping system continues to function properly.
NOTICE: If the unit requires service and it is necessary to disconnect the power supply, then prior to turning power supply
OFF, you should engage the SERVICE ON switch in order to insure that the water supply solenoid is open. To close the
water supply solenoid for maintenance purposes of the water service, engage the OPERATE ON switch twice leaving a brief
moment between each engagement.
If you have any questions regarding the operation and maintenance of the RLA Controller, please contact an ISIMET
Service Representative.
The enclosure has a NEMA 1 rating. It is not intended for use in wet areas. Exercise caution to prevent exposure of the
interior compartment of the enclosure to moisture. If moisture is present within the enclosure, ISIMET recommends that the
control switch be turned OFF, power be disconnected from the unit until the source of the moisture is determined, and all
moisture is removed from the compartment.
The electronic controller (PCB) is sensitive to dust and other air-borne particles. Do not expose the interior compartment of
the enclosure to dust. During the semi-annual inspection, if dust or other material is present, ISIMET recommends that you
remove all foreign matter before operating the unit.
If the Unit fails to operate, ISIMET recommends that you check the power supply to the unit. With the control switch in the
ON position, LED Fuse 1 should illuminate. If not, check the service breaker and PCB fuses.
If the fuse is not damaged and the unit still does not function, contact ISIMET or your local Service Representative.

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ISIMET/MAPA, LLC
PO Box 129 (Mailing)
103 W. CJ Wise Pkwy
Naples, Texas 75568-0129
Phone [phone]
Fax [phone]
www.ISIMET.com
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