R & M Int'l. CGC-1e - Manual (Page 9)

Page 9
TROUBLESHOOTING
If you are having problems with this unit, refer to these troubleshooting hints. Also, refer to the connection diagram
to ensure your devices are connected properly.
Problem Suggested Action

I have no lights and no
function at all.
Check the fuse and main power. Replace the fuse if required with the correct rated fuse.

Check the equipment connected to the CGC-1e for problems and/or short circuits.

The fuse continues to
blow.
If the fuse blows repeatedly, verify the devices connected to the unit are working properly and that they
are not too large for the CGC-1e to safely control.

You may need to consider using expansion modules, (UPM / HPR / MLC) to decrease the amperage
(load) on the CGC-1e fuse.

My CO2 outlet never
comes on.
Verify the PPM-1c jumper or the PPM-1c is connected.

If the Exhaust outlet is ON, the CO
2
will not be allowed to run. Turn up the Temperature and Humidity to
a higher setting.

In order for the CO
2
outlet to function, the timeclock must be in “Daytime” mode. The CO
2
is only
activated when the lights are “ON”.

The fans are running
so often, the CO2 is
hardly ever ON.
You may have too much heat building up in your area or too small of an exhaust fan. Reduce the heat
sources or increase your fan size.

You may also consider using a “closed-loop” air conditioner to keep the temperature and humidity below
the set points so that CO
2
is allowed to run for longer amounts of time.

My CO2 consumption
seems to be quite high.
Make sure your area is sealed. You may want to install a motorized damper to seal your exhaust fans
when they are “OFF”. Even though the CGC-1e operates a standard “timed-release” sequence, you may
still be “wasting” CO
2
.

If you are operating compressed CO
2
valves, consider purchasing the optional PPM-1c “Part-Per-Million”
sensor to upgrade to PPM control. The PPM-1c offers a significant improvement in CO
2
efficiency.

The CO2 level
“overshoots” the PPM-
1c set point
considerably.

Small areas need less “Inject Duration” time than do larger areas. Larger areas need more “Inject
Frequency” time in order to give the CO
2
time to “mix” properly with the ambient air and measured by the
PPM sensor.

Start with lower CO
2
timer settings for small areas and increase the timer settings for larger ones.

The Hydro pumps are
not cycling properly.
The Hydro pump outlets can be operated 24-hours a day or only when the “Lights” are “ON”. The “Hydro”
selector switch also has a center “OFF” position, which can be used to “reset” the timing function. Make
sure the switch is not turned “OFF”.
MAKING CONNECTIONS
All of the main functions controlled by the CGC-1e are accessed using (8) standard 120 VAC, 15-amp receptacles mounted on
the sides of the enclosure. This allows you to simply “plug in” any standard device without hardwiring or hassles. Printed
labels on the front face of the enclosure identify the receptacles.
We highly recommend using only 3-wire devices with a ground. Suitably double-insulated devices are acceptable. Keep in
mind that the combined amperage draw on all of the devices connected to the CGC-1e must be less than 15-amps @ 120 VAC.