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JB INDUSTRIES
• LDC-4000 Operating Manual • 630.851.9444 • [email protected]
OPERATING INSTRUCTIONS
Install Batteries
Remove battery cover with a Phillips head screwdriver. Insert four AA batteries.
Power Settings
1. TURN ON/OFF:
Press the ON/OFF button once to turn on and again to turn off.
NOTE:
Hold button down for approximately one second to turn unit off.
2. WARM UP CYCLE:
The detector automatically starts heating the sensor. During the heating cycle, the
detector will sound a slow “beep”. Warm up time is usually less than 10 seconds.
3. READY MODE:
The detector is ready to begin searching for leaks when the audio “beep” increases in
frequency
.
4. SEARCHING:
When searching for leaks, move the sensor tip along A/C lines and fittings no further
away than .37 in (9.5 mm) and no faster than 3 in/sec (75 mm/sec). If the detector alarms, make smaller
sweeps back and forth until the leak source can be pinpointed. If a leak exists, the alarm will increase in
rate and pitch.
Low Battery Indicator
Replace the four AA alkaline batteries when the red LED on the control panel is lit. Follow battery installation
instructions in
MAINTENANCE
section.
LDC-4000 Manual 1019.indd 4
LDC-4000 Manual 1019.indd 4
12/19/19 2:13 PM
12/19/19 2:13 PM
