Isimet KLA User manual

ISIMET/MAPA, LLC 103 W CJ Wise Pkwy Naples, TX 75568
903-781-6994
2020
ISIMET
KLA Kitchen Gas Controller
HV (120VAC) / LV (24VDC)
Installation Manual

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ISIMET KLA
Installation Manual
Copyright © 2020 ISIMET/MAPA, LLC. All rights reserved.
Patent 6,757,589 B1, 6,990,393 B2, 8,543,225, Other Patents Pending
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.
ISIMET is a trademark of ISIMET/MAPA, LLC, an affiliate of WCM Industries, Inc.
Printed in the United States of America.

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Important Warnings
Indoor Storage and Installation:
Installers shall be responsible for protecting the control panel, solenoids, and
electrical enclosures from rain, liquids, construction and drywall debris and
materials, dust, and extreme heat or cold (above 90°F and below 32 F°). Such
exposure may result in equipment malfunction/failure.
Preventing Transient Voltage:
Control wiring MUST be housed in separate conduit from power wire (120VAC,
24VDC or 12VDC).
Codes and Experience:
Only qualified, licensed plumbers and electricians within the governing
jurisdiction should perform this installation and/or service this equipment.
All ADA, local plumbing and national electrical codes must be followed.

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Mounting the KLA Utility Controller
There are two options for mounting the KLA: Surface Mount (page 5) or the recommended Flush
Mount (page 3). Skip to the required section for installation instructions.
Flush Mount Installation (Recommended)
1. Place the KLA Enclosure Box next to the stud taking into consideration the finished wall
thickness. (The front of the KLA Enclosure Box should be installed flush with the finished
wall).
Figure 1: Flush Mount Installation (Protrude to finished wall thickness)
2. Attach the KLA Enclosure Box to the stud through the slotted cutouts using appropriate
screws.
Figure 2: Mount the KLA to the Stud

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3. Remove only the necessary knockouts from the KLA Enclosure Box for wiring.
Figure 3: Example of typical wiring knockouts for the KLA (Top View)
4. Install EMT conduit with connectors to the KLA enclosure for the 120V line voltage and
control wiring.
Figure 4: Recommended EMT conduit installation
120VAC Input
Control Wiring
Front

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Surface Mount Installation (Skip Ahead if Surface Mounted)
1. Remove only the necessary knockouts from the KLA Enclosure Box for wiring.
Figure 5: Example of typical wiring knockouts for the KLA (Top View)
2. Level and plumb the KLA Enclosure Box to the wall and secure the enclsoure through the
predrilled holes (in the four corners) using appropriate mounting screws.
Figure 6: Surface Mount Installation (KLA)
120VAC Input
Control Wiring
Front

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Surface Mount Installation (Continued)
3. Drill out the Surface Mount Sleeve to match the knockouts previously removed from the
KLA Enclosure Box.
Figure 7: Surface Mount KLA Sleeve Drill Points (Top View)
4. Slide the Surface Mount Sleeve over the KLA Enclosure Box and install EMT conduit with
appropriate connectors for the wiring.
Figure 8: Install Surface Mount Sleeve onto the KLA
Front

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Mounting the Gas Solenoid
Solenoid Installation Recommendations:
•A licensed installer should complete this section following all National and Local Codes.
•Ensure that 120VAC solenoids are ONLY used with the KLA-HV (High-Voltage), while 24VDC
solenoids are used exclusively with the KLA-LV (Low-Voltage) [See Electrical Specifications].
•ISIMET’s S-Series Enclosure is recommended, which will typically include a Solenoid Assembly
(see below).
•The solenoids should be installed with an access panel for maintenance and/or service.
•Remove the solenoid assemblies and flush the piping systems prior to initial startup.
Figure 10: Match Solenoid Arrow with Water/Gas
Flow
Figure 9: Recommended ISIMET Valve Assembly for Gas Control

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Wiring the KLA
A licensed electrical contractor should perform all 120VAC wiring following all electrical codes and
procedures. Low-Voltage and control wiring should be isolated from any line voltages and use 18 AWG
minimum. Warning: All Inputs MUST be Dry-Contact (Voltage-Free)!

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KLA Recommended Carbon Monoxide Detector Wiring Diagram
Figure 11: How to connect the KLA to the Honeywell E3SA Carbon Monoxide Detector and Remote Sensor

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KLA Recommended ISIMET Fuel Gas Sensor Wiring Diagram
Figure 12: How to connect the KLA to ISIMET's Fuel Gas Sensor

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KLA-HV (120V) Wiring Instructions (Skip ahead for the LV version)
Figure 13: KLA-HV (120V) Wiring Diagram
KLA-HV Label
Description
120V_Input
120VAC Line Voltage Input
Circuit #1 Output
First 120VAC Circuit Output
Circuit #2 Output
Second 120VAC Circuit Output (Optional)
Gas Detector, Carbon Monoxide
Dry-Contact Input with 24VDC Output
EMS/BMS, ALARM, Emergency Button, Fan
Interlock
Dry-Contact (Voltage-Free) Inputs
Panic Output
24VDC and Dry-Contact Configurable Output
Pressure Transmitter Input
ISIMET approved Gas Pressure Transmitter

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KLA-LV (Low-Voltage) Wiring Instructions
Figure 14: KLA-LV (Low-Voltage) Wiring Diagram
KLA-LV Label
Description
120V_Input
120VAC Line Voltage Input
Circuit #1 Output
First 24VDC Circuit Output
Circuit #2 Output
Second 24VDC Circuit Output (Optional)
Gas Detector, Carbon Monoxide
Dry-Contact Input with 24VDC Output
EMS/BMS, ALARM, Emergency Button, Fan
Interlock
Dry-Contact (Voltage-Free) Inputs
Panic Output
24VDC and Dry-Contact Configurable Output
Pressure Transmitter Input
ISIMET approved Gas Pressure Transmitter

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Figure 15: Example Wiring Drawing with ISIMET Optional Components
KLA Label
Description
Gas Detector
Dry-Contact Input with 24VDC Output for
ISIMET’s Fuel Gas Sensor
Carbon Monoxide
Dry-Contact Input with 24VDC Output for a
Carbon Monoxide Detector
EMS/BMS
Dry-Contact Input for the Energy/Building
Management System to shut down the KLA
ALARM
Dry-Contact Input for Building Alarm
Emergency Button
Dry-Contact Input for Emergency Shut-Off
Fan Interlock
Dry-Contact Input to disable the KLA
Panic Output
24VDC and Dry-Contact Configurable Output
Pressure Transmitter Input
ISIMET approved Gas Pressure Transmitter

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Completing the KLA Installation
Flush Mount Completion (Skip ahead for Surface Mount)
1. After the walls are finished, firmly attach the ribbon cable from the KLA Enclosure Box to
the KLA Front Cover plug.
Figure 16: Attaching the Ribbon Cable from the KLA Daughterboard to the KLA Motherboard
2. Attach the Cover using the included #8-32 Stainless-Steel Screws.
Surface Mount Completion
1. Verify the fitment of the KLA Surface Mount Sleeve and attach the ribbon cable from the
KLA Enclosure Box to the KLA Front Cover plug (See Figure Above).
2. Attach the Cover using the included #8-32 Stainless-Steel Screws.
Verify KLA Functionality
1. Verify that all inputs are attached to dry-contact sources.
2. Turn on power to the KLA and verify that the power LEDs are illuminated.
3. Test the control switches and verify that Circuit #1 and Circuit #2 turn on when activating the
key switch.
4. Test the devices that are connected to the KLA inputs and verify they are working properly.
5. Press the Emergency Shut-Off Button and confirm that the Circuits turn off.

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Configuring the KLA
The KLA will come preconfigured from the factory; however, at times it may be necessary to make
adjustments to the configuration. (Default Settings are attached to a sticker inside the enclosure)
Basic Configuration
Setting
Position
Options
Description
Panic Output
1
Middle (2)
Panic Output Enabled on Emergency
Up (1)
Momentary (3s) Panic Output on Emergency
Down (3)
Always ON except on Emergency
Circuit Config
2
Middle (2)
Switches 1 & 2 operate independently
Up (1)
Switch 1 is Standard and Switch 2 is a FAN
Down (3)
Single Switch Only
Circuit
Timing
3
Middle (2)
No Timing
Up (1)
CIR 1 & 2 Timeout Based on Time Period
Down (3)
CIR 2 on Timer as FAN
Time period
on Circuit
Timing
4
Middle (2)
1 hour (15 minutes if FAN)
Up (1)
2 hours (30 minutes if FAN)
Down (3)
3 hours (1 hour if FAN)
EMS/BMS
5
Middle (2)
First Key Timing Enabled
Up (1)
Active OFF (Input signal will turn OFF Circuits)
Down (3)
Active ON (Input signal required to turn ON
Circuits)
First Key
Timing
6
Middle (2)
8 hours
Up (1)
10 hours
Down (3)
12 hours
LED
Indicators
7
Middle (2)
3rd=Pressure Test Failed, 4th=Gas Leak Detected
Up (1)
3rd=Gas Leak Detected, 4th=Pressure Test Failed
Down (3)
KLA Only (Do NOT Change this Setting!)
Test
8
Middle (2)
Normal Operation
Up (1)
Test Mode for All Inputs
Down (3)
Test Mode for All Outputs
Up (1)
Middle (2)
Down (3)
UP
DOWN

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Troubleshooting the KLA
KLA-HV and -LV Troubleshooting
•It is recommended to remove all input and output terminal plugs and verify the
functionality of the KLA prior to performing any other troubleshooting.
oTest the system by attaching 120VAC to the input.
oVerify the ‘3V3 Power’ and ‘24V Power’ LEDs illuminate.
oTurn the switch(es) to the ON position and press the push-button/turn the key.
oVerify the green ON LED(s) illuminate on the front cover.
oVerify the Circuit(s) LED(s) on the board illuminate.
oReconnect the circuit output(s) and re-key the system.
oVerify that the circuit outputs are working as intended.
oPress the Emergency Shut-Off Button
oVerify the red Emergency Indicator LED illuminates and the circuit(s) are
disabled.
oRe-key the system and verify any other inputs function as intended.
•If the Circuit Output LED illuminates, but there is no voltage on the Circuit Output:
oRemove and check the fuse and replace if blown (HV Only).
•If an input is not working as expected, verify that a dry-contact source was used and that
the corresponding LED to the input illuminates. The input can be shorted to test its
functionality as needed.
•If the Power LEDs are not illuminated, check for proper connections, 120V input power,
and verify there are no electrical shorts.
•If the Panic Output is not functioning as intended, verify the configuration from the
previous page.
Note: The KLA was designed to shut-off the gas at the end of each day by using First
Key Timing. First Key Timing is enabled by default to shut-off the controller after its
default 8-hour timing has been reached. The solenoids included are designed to be rested
within a 24-hour period as they can reach very high temperatures (140º F). Resting the
solenoids prolongs their lifespan and reduces maintenance. ISIMET believes that utilities
should default to an OFF-state as this is the safest and most efficient way to prevent
accidents and/or vandalism.

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Electrical Specifications
The KLA Utility Controller system is designed to be used with 120VAC line voltage and
120VAC outputs (HV) or 24VDC outputs (LV).
Figure 17: KLA-HV PCB
Figure 18: KLA-LV PCB
KLA-HV (120VAC Version)
KLA-LV (24VDC Version)
120VAC (60Hz) Line Voltage Input
100-240VAC (50/60Hz) Line Voltage Input
120VAC Circuit Output (Max 15A)
24VDC Circuit Output (Max 2.5A)
24VDC Output (Max 5W)
24VDC Output (Max 10W)
120V –2A Fuse (Quantity: 2)
Short-Circuit Protection (No Fuses)
Control Wire Size: 18 AWG Recommended