COOK Gemini with Motion Sensor - Manual

Settings
: To access setting adjustments remove sensor cover by removing countersunk screw from side of sensor and turn cover
counter clockwise.
Time-Delay: Settings should be determined during the installation period. This adjustment controls the amount of time the fan
stays ON after the last detected motion. You may select settings varying from 20 Seconds (-) to 15 minutes and (+) and any time in
between. NOTE: After power is turned ON from the circuit breaker or fuse, allow two minutes for this unit to warm up before perform-
ing Time-Delay settings.
Ambient Light: This adjustment allows you to determine at what minimum ambient light level the device will operate. You may
select settings from always operating (day and night) to operating only when the ambient light level is less than 3 lux, or anywhere in
between. The fan will turn ON when the unit senses motion and the ambient light reaches your desired level.
Perform the following steps for a more precise Ambient Light adjustment:
1. Make the adjustment when the actual ambient light is at the level where no artificial light is required.
2. Turn the Ambient Light adjustment to the (-) position (minimum light).
3. Turn the Time-Delay adjustment to the (-) position (at 20 seconds) and leave the monitored space.
4. Re-enter the monitored space after the fans goes OFF and the fan will remain OFF.
5. Slowly turn the Ambient Light adjustment knob towards (+) until the fan goes ON.
6. Slightly turn the Ambient Light adjustment knob back towards (-) and leave the monitored space.
7. When you return to the monitored space, the fan should remain OFF. If the fan comes ON, repeat step 6 until the fan
remains OFF when you reenter the monitored space, at the desired ambient light level.
8. Reset the Time-Delay adjustment back to the desired position.
Troubleshooting:
• FAN WILL NOT TURN ON
- Circuit breaker or fuse is OFF: Turn the breaker ON. Ensure that the fan is in working order (See Gemini IO&M).
- Fan is wired incorrectly or may be defective: Confirm that the fan’s wiring is done exactly as shown in the diagram and/or
inspect it visually for problems. (See Figure 1 below or 2 on reverse side)
- Lens is dirty or obstructed: Inspect the lens visually and clean if necessary, or remove the obstruction.
• FAN WILL NOT TURN OFF
- Fan is wired incorrectly or may be defective: Confirm that the fan’s wiring is done exactly as shown in the diagram and/or
inspect it visually for problems.
- Fan may be mounted too closely to an air conditioning or heating vent, or traffic in an adjacent area is affecting fan:
Move the fan to another location, or close the vent.
- The line voltage has dropped: Perform the necessary tests to ensure the line voltage has not dropped beneath 100V. If it has
dropped, check for operation of any large appliances on the circuit, and turn them off.
- Light is being reflected from an object: Check the area for any white or shiny surfaces that might be reflective, and correct
the situation.
• FAN TURNS OFF AND ON TOO QUICKLY
- Fan may be mounted too closely to an air conditioning or heating vent: Move the fan to another location, or close the vent.
- Light is being reflected from an object: Check the area for any white or shiny surfaces that might be reflective, and correct
the situation.
- Time delay set improperly: Adjust the TIME DELAY (see SETTINGS section).
Motor
Speed
Control
Red
Blue
Black
White
Blue
Blue
Black
White 4
3
2
1
Motion
Sensor
L1 L2
Wiring by others
in external
2 x 4 box
Figure 1
White
White Black
Gemini with Motion Sensor
SETTINGS/TROUBLESHOOTING