Sunlight Supply Grozone Control SCC1 Temperature, Humidity and CO2 Controller Simple One Series - Manual (Page 5)

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Grozone SCC1 Advanced User Guide – March 2012 www.grozonecontrol.com
4- CO2 ENRICHMENT WITH A BURNER OR A TANK
To use this mode, you connect your CO2 Generator into the CO2 120V Output. CO2 Enrichment will work during
the DAY ONLY.
CO2 ENRICHMENT
CONTROL ACTION DAY OPERATION NIGHT OPERATION
BASIC
OPERATION
(lowest priority)
START / STOP THE BURNER OR TANK
To maintain the CO2 PPM level around the DAY SETPOINT
NONE (Disabled at Night)
ACTION OF
HIGHER
PRIORITY STOP THE BURNER OR TANK
When High Temperature Limit is reached in the event of excessive
heat caused by the burner in your room. See Chart below)
NONE (Disabled at Night)
ACTION OF TOP
PRIORITY
MAINTAIN THE BURNER OR TANK OFF
in the unlikely event of a CO2 Sensor Failure OR a Temperature
Sensor Failure.
NONE (Disabled at Night)
CO2 EMPTY TANK DETECTION:
The SCC1 is able to detect a defective CO2 enrichment period, during which the CO2 PPM level never builds up.
The SCC1 will declare a “CO2 Empty Tank” fault in two conditions:
Condition 1: High Temp limit has been reached twice in a row while CO2 PPM remains low.
When the High Temp Limit is reached while the CO2 level is still low (below setpoint – 200 ppm), the SCC1 assumes the CO2 tank is
empty (CO2 tank or propane/natural gas burner tank); if this condition is met at the end of two consecutive “enrichment” cycles, the
SCC1 will declare an empty tank condition.
Condition 2: a 30-minute time has elapsed while CO2 PPM remains low.
The second method is time based. If the CO2 output is ON for 30 minute and the CO2 PPM level is still low after this delay, the SCC1
will also declare an empty tank condition.
Effect of CO2 Output:
When an empty tank condition is met, the SCC1 will DISABLE the CO2 Output and the CO2 Output indicator will flash as long as this
condition is present.
Resetting the Empty Tank Condition:
CLICK the CALIBRATION button to reset this fault. However the fault will appear again if the tank has not been refilled.
The condition will reset automatically if the CO2 PPM level rises in the room up to the CO2 setpoint and every morning when the lights
turn ON to allow the controller to validate whether the tank has been replaced or not.