Jkd-512com User Manual [better] 90%
: Do not install within the top 4 inches (10 cm) of a corner intersection where walls meet the ceiling.
Extinguish all open flames, cigarettes, or candles immediately.
Press and hold down both the and DOWN (▼) buttons simultaneously.
If the CO alarm sounds:
Stay safe, stay aware, and never compromise on life-saving detection equipment. jkd-512com user manual
9V rechargeable battery or standard 9V block battery (model dependent).
— Once warm-up finishes, the green indicator light will flash once approximately every 30–35 seconds, confirming normal operation.
— Open the battery compartment on the back of the unit and insert 3× AA 1.5V batteries according to the polarity markings.
Correct placement is essential to prevent false alarms and guarantee life-saving alerts. Smoke floats upward, while carbon monoxide mixes evenly with room air, making the ideal approach. Recommended Locations : Do not install within the top 4
The green light will illuminate, and the digital display will begin a countdown. Do not test or press buttons during this 3-minute stabilization period.
The unit will beep, the LEDs will flash, and the display will show a countdown or warm-up status ( Hw ) for up to 3 minutes. Once the countdown ends and the screen stabilizes at 0 , the device is in active monitoring mode. 4. Operating Instructions and Testing The Test/Hush Button
The JKD-512COM utilizes a dual-sensor design to monitor air quality. It features an electrochemical sensor for precise carbon monoxide detection and a catalytic combustion sensor for detecting combustible gases like liquefied petroleum gas (LPG), natural gas, and methane. Key Technical Specifications
Fasten the backing plate or unit tightly using the provided mounting screws. Ensure it is level to prevent uneven mechanical stress on terminal ports. 4. Wiring and Terminal Connections If the CO alarm sounds: Stay safe, stay
The JKD-512COM uses standard screw terminal blocks. Use 14–22 AWG copper wire for connections, stripping approximately 6mm of insulation from the wire ends. Standard Terminal Mapping Terminal Label Function Description Connection Type Positive DC Input / Live AC Input Power Supply V- / N Negative DC Input / Neutral AC Input Power Supply Ground / Neutral COM Common Terminal for Relay NO Normally Open Relay Contact Load Loop (Closes when active) NC Normally Closed Relay Contact Load Loop (Opens when active) SIG / IN Signal Input Port External Sensor / Switch GND Signal Ground Reference Sensor Ground Standard Wiring Workflow
Mount the device to the wall using the provided bracket and screws, or plug the unit directly into a designated, unswitched wall outlet.
— Screw the mounting screws into the pilot holes, leaving approximately 1/8 inch of the screw head exposed to engage with the detector's keyhole slots.