Carmanah Technologies Corp. | 250 Bay St, Victoria, BC V9A 3K5, Canada | 1-877-722-8877 |
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G SERIES USER MANUAL
5.0 INSTALLATION OF OPTIONAL ACCESSORIES
5.6 AC Relay Kit Installation
For solar-powered systems, it is important to discuss your application with a Carmanah
representative to ensure your load will operate sustainably in your location. Shade
analysis is highly recommended for understanding how solar access will change
according to the time of year. Contact Carmanah for a detailed examination and solar
simulations for your site.
The G Series AC Relay Kit option includes a pre-installed AC/DC relay. The relay input is prewired to the OUT2
output of the EMS. The relay AC load side is wired to the Switched AC Output terminals through a 4A breaker.
When the EMS LED output turns on, the digital output on the EMS is enabled and the output terminals of the relay
close to operate an AC load.
The behavior of the Output is modified by the output setting on the EMS. When set to “nite”, the
output will only be enabled when the LED output is on and at nighttime. See
details.
ELECTRICAL SHOCK HAZARD.
DO NOT ENERGIZE AC SUPPLY OR TURN CABINET BREAKER(S) ON UNTIL ALL
SYSTEM WIRING IS COMPLETED.
The relay model supplied with the AC Relay Kit is Omron part number G3NA-210B-DC5-24.
Please see Omron’s datasheet for more information.
To install an AC load:
1. Turn off the AC supply to cabinet.
2. Turn off breakers in cabinet. Install ground from AC load cable into bus bar terminal shown, torque to 20
in-lb. Install line and neutral wires from AC load cable into Switched AC Output terminals, torque to 6 in-
lb. Secure cable jacket to chassis with cable tie.
3. Ensure other system wiring is complete before turning on the AC supply and cabinet breakers.
