Grozone Control HT2 User manual

STEP 2 SET VALUES
HOW DOES THE BAR DISPLAY WORK?
UPPER 15 BARS SHOW EITHER
TEMPERATURE or HUMIDITY VALUES.
The Humidity Scale is located on the left side of the
display, the Temperature Scale on the right side.
LOWER 5 BARS SHOW THE SELECTED
CONTROL MODE.
CONNECT YOUR CONTROLLER AND CLICK KNOB TO ENTER THE 6-STEP PROGRAMMING SEQUENCE:
Once you enter the Programming Sequence, LEDs are steady lit. LEDs are blinking when you return to normal operation.
STEP 1
STEP 2
STEP 3
STEP 4
STEP 5
STEP 6
EXIT
DAY
HUMIDITY
NIGHT
HUMIDITY
DAY
TEMPERATURE
NIGHT
TEMPERATURE
LOW TEMP
LIMIT
CONTROL
MODE (Note 1)
Return To
Control
Note 1: only one bar lit among lower 5 bars.
SETTINGS FOR EACH CONTROL MODE:
These SETTINGS will ensure proper operation.
Operating Modes
DAY
HUMIDITY
NIGHT
HUMIDITY
DAY
TEMPERATURE
NIGHT
TEMPERATURE
LOW TEMP
LIMIT (Note 2)
COOL
Setting not used
Setting not used
Day Setpoint: 52°F to
100°F (right scale)
Night Setpoint: 52°F to
100°F (right scale)
Setting not used
DEHUMIDIFY
Day Setpoint: 15% to
95% (left scale)
Night Setpoint: 15% to
95% (left scale)
Set value to 50°F or
above (Note 2)
Set value to 50°F or
above (Note 2)
Set value to 48°F or
above (Note 2)
COOL & DEHUM.
Day Setpoint: 15% to
95% (left scale)
Night Setpoint: 15% to
95% (left scale)
Day Setpoint: 52°F to
100°F (right scale)
Night Setpoint: 52°F to
100°F (right scale)
Set value to 48°F or
above.
HUMIDIFY
Day Setpoint: 15% to
95% (left scale)
Night Setpoint: 15% to
95% (left scale)
Setting not used
Setting not used
Setting not used
HEAT
Setting not used
Setting not used
Day Setpoint: 52°F to
100°F (right scale)
Night Setpoint: 52°F to
100°F (right scale)
Setting not used
Note 2: The Low Temperature Limit will stop your dehumidifying equipment if the temperature in the room cools down below this
setting to avoid damaging your plants. This limit is active ONLY when “DEHUMIDIFY” or “COOL & DEHUMIDIFY” CONTROL MODE
is selected. Always set your DAY and NIGHT temperature settings NOT MORE THAN 2°F above the Low Temp Limit.
HT-2 HUMIDITY / TEMP CONTROLLER page 1/2
Rev. 2.0
STEP 1 LOCATE AND CONNECT THE SENSOR,
APPLY POWER TO THE CONTROLLER
1) Before connecting the remote sensor to the plug-in controller box with
the 25-ft telephone cable, MAKE SURE TO APPLY WHITE
GREASE (included, Loctite 36780, 1 cc pouch) on both ends of
cable, and then plug both cable ends into the sensor and controller
telephone-type connectors.
2) Connect your controller into a 120V POWER OUTLET. The display
start-up sequence is as follows: bottom bar lights up, then goes up to
top bar and back down to bottom bar. Controller is then ready to work.
3) IT IS VERY IMPORTANT TO PLACE THE SENSOR
CONNECTOR DIRECTED TOWARD THE FLOOR, forming a
180° loop with the 25-ft cable already tied to the sensor top tab (with
included beaded tie).
4) To VIEW THE AMBIENT HUMIDITY level, rotate the knob
counter clockwise. Either DAY or NIGHT indicator will blink on left
side of knob to indicate actual light sensor status.
5) To VIEW THE AMBIENT TEMPERATURE level, rotate the knob
clockwise. Either DAY or NIGHT indicator will blink on right side of
knob to indicate actual light sensor status.
.
TO VIEW THE AMBIENT TEMPERATURE:
Rotate The Knob Clockwise
TO VIEW THE AMBIENT HUMIDITY:
Rotate The Knob Counter Clockwise

STEP 3 2CONNECT YOUR EQUIPMENT (120V 15Amps MAX)
Connect your equipment into the 120V outlet on the front of your controller, set
your values and control mode, then you’re set!
FAN (to COOL, COOL & DEHUMIDIFY or DEHUMIDIFY)
HUMIDIFIER (to HUMIDIFY)
DEHUMIDIFIER (to DEHUMIDIFY)
HEATER (to HEAT), 1000W heater recommended to maximize product
service life.
DURING THE NORMAL OPERATION, LED or BAR INDICATORS WILL
BLINK IN THESE SPECIAL CONDITIONS:
BLINKING INDICATORS (only one blinking at a time):
The blinking indicator tells you which of temperature or humidity is currently shown
and which of day or night period is being detected by the light sensor.
E.g. A Blinking Humidity Sun Icon stands for “Display currently shows Humidity value” and “The controller
currently works during a Day Period”.
BLINKING TEMPERATURE OR HUMIDITY BARS:
The temperature or humidity values are indicated by the upper 15 bars of display.
Temperature reading: TOP BAR is blinking when temperature is above
104°F / 40°C. BOTTOM BAR (of 15) is blinking when temperature is below
48°F / 9°C. Otherwise, temperature is within these 2 limits.
Humidity reading: BOTTOM BAR is blinking when humidity is below 10%.
Humidity above 100% is impossible, TOP BAR will never blink.
Temp sensor failure: both TEMPERATURE TOP and BOTTOM BARS are
blinking when the temp sensor reading is invalid. The Output will be held
OFF if the control mode is using this sensor. Unit may need to be repaired.
Humidity sensor failure: both HUMIDITY TOP and BOTTOM BARS are
blinking when the humidity sensor reading is invalid. The Output will be held
OFF if the control mode is using this sensor. Unit may need to be repaired.
BLINKING CONTROL MODE BAR:
The selected CONTROL MODE is indicated by one of the lower 5 bars of display.
Output is OFF (no voltage on output): Control Mode bar is STEADY LIT,
not blinking.
Output is ON (120V on output): Control Mode bar IS BLINKING.
Example 1 Example 2
DAY Humidity Indicator is blinking. NIGHT Temperature Indicator is
blinking.
Display bar “20” is lit (left scale). Display bars “68” and “72” are lit (right scale).
DEHUMIDIFY Bar is lit, but not blinking. HEAT Bar is blinking.
Day Humidity Setpoint is 40%. Night Temperature setpoint is 75°C.
DAY is detected and NIGHT is detected and
the Output is currently NOT ACTIVATED (120V) the Output is ACTIVATED
because humidity level is at 20%. because the temperature level is only 70°C.
HT-2 HUMIDITY / TEMP CONTROLLER page 2/2
DAY AND NIGHT DETECTION
The light sensor detects a NIGHT
condition when it senses darkness for
a minimum period of 8 seconds.
The light sensor detects a DAY
condition when it senses light for a
minimum period of 8 seconds.
ELECTRONIC BALLAST IN THE
SURRONDINGS
Electronic ballasts are generating
electronic noises (EMI) that are likely
to be picked up by the sensor cable
and alter the reading of the
temperature and humidity values. The
HT-2 incorporates built-in filters that
reduce the effect of EMI, however, we
recommend:
1- to place the sensor and cable
as far as possible of the
ballast, the bulb and the cable
between them,
2- to connect the controller on a
different 120V outlet / circuit
than the one used for the
ballast.
Please visit
www.grozonecontrol.com
for application notes and
new product updates.
The bargraph display
shows a TEMPERATURE
level of 70°F.
The bargraph display
shows a HUMIDITY
level of 20%.