పరిచయం
The Fosmon Countdown Light Timer Switch (Model HD8200) is an in-wall programmable timer designed to automatically turn off connected devices after a pre-set duration. It offers 9 distinct time settings, ranging from 5 minutes to 4 hours, providing convenience and energy savings for various applications such as bathroom fans, heaters, and lighting.
This manual provides detailed instructions for the safe installation, operation, maintenance, and troubleshooting of your timer switch. Please read it thoroughly before installation and retain it for future reference.

మూర్తి 1: ముందు view of the Fosmon Countdown Light Timer Switch.
భద్రతా సమాచారం
హెచ్చరిక: To avoid fire, shock, or death, turn off power at the circuit breaker or fuse box and test that the power is off before wiring. Installation should be performed by a qualified electrician or a person with a thorough understanding of electrical wiring.
- Always disconnect power before installing or servicing the switch.
- This device requires a neutral wire for proper operation. Ensure your electrical box has a neutral wire available.
- Do not exceed the maximum electrical ratings of 125VAC, 15A, 1875W General Purpose, 1000W Tungsten, 500VA Electronic Ballast, 1/2HP.
- అన్ని వైర్ కనెక్షన్లు సురక్షితంగా మరియు సరిగ్గా ఇన్సులేట్ చేయబడి ఉన్నాయని నిర్ధారించుకోండి.
- ఈ ఉత్పత్తి ఇండోర్ ఉపయోగం కోసం మాత్రమే ఉద్దేశించబడింది.
The safety of this product is certified with UL E211835.
ప్యాకేజీ విషయాలు
- Fosmon Countdown Light Timer Switch (HD8200)
- సింగిల్ గ్యాంగ్ వాల్ ప్లేట్
- వైర్ నట్స్
- మౌంటు స్క్రూలు
- ఇన్స్ట్రక్షన్ మాన్యువల్
స్పెసిఫికేషన్లు
| ఫీచర్ | వివరాలు |
|---|---|
| మోడల్ సంఖ్య | HD8200 |
| ఆపరేషన్ మోడ్ | మాన్యువల్ |
| ప్రస్తుత రేటింగ్ | 15 Amps |
| ఆపరేటింగ్ వాల్యూమ్tage | 125 వోల్ట్స్ AC |
| గరిష్ట లోడ్ | 1875W General Purpose, 1000W Tungsten, 500VA Electronic Ballast, 1/2HP |
| సంప్రదింపు రకం | సాధారణంగా మూసివేయబడింది |
| కనెక్టర్ రకం | స్క్రూ |
| సర్క్యూట్ రకం | 1-మార్గం |
| యాక్యుయేటర్ రకం | పుష్ బటన్ |
| సంప్రదింపు మెటీరియల్ | రాగి, ఇత్తడి |
| ధృవపత్రాలు | UL E211835, ETL Listed |
| కొలతలు | 5.12 x 3.9 x 2.52 అంగుళాలు |
| బరువు | 5.61 ఔన్సులు |
సెటప్ మరియు ఇన్స్టాలేషన్
Before beginning installation, ensure you have the necessary tools: screwdriver, wire strippers, electrical tape, and voltagఇ టెస్టర్.
- పవర్ ఆఫ్ చేయండి: Locate the circuit breaker or fuse that controls the power to the switch you are replacing or the location where you intend to install the new timer switch. Turn off the power completely and verify with a voltage tester that the power is off before proceeding.
- పాత స్విచ్ను తీసివేయండి (వర్తిస్తే): Carefully remove the existing wall plate and unscrew the old switch from the electrical box. Disconnect the wires from the old switch, noting which wire was connected to which terminal (Line, Load, Neutral, Ground).
- వైర్లను గుర్తించండి:
- Line Wire (Hot): Typically black, carries power from the circuit breaker.
- లోడ్ వైర్: Typically black, carries power to the light fixture or appliance.
- న్యూట్రల్ వైర్: Typically white, required for this timer switch.
- గ్రౌండ్ వైర్: Typically bare copper or green.

Figure 2: Wiring diagram for the Fosmon Countdown Light Timer Switch. Note the required neutral wire connection.
- Wire the New Switch:
- కనెక్ట్ చేయండి లైన్ (హాట్) wire from the wall box to the terminal labeled "L-I" or "Hot" on the timer switch.
- కనెక్ట్ చేయండి లోడ్ చేయండి wire from the wall box to the terminal labeled "L-O" or "Load" on the timer switch.
- కనెక్ట్ చేయండి తటస్థ wire from the wall box to the terminal labeled "N" on the timer switch. Use a wire nut if connecting multiple neutral wires.
- కనెక్ట్ చేయండి గ్రౌండ్ wire from the wall box to the green ground screw on the timer switch.
Ensure all connections are tight and secure. Push any excess wire carefully back into the electrical box.
- స్విచ్ మౌంట్ చేయండి: Secure the timer switch into the electrical box using the provided mounting screws.
- వాల్ ప్లేట్ను ఇన్స్టాల్ చేయండి: Attach the included single gang wall plate over the switch.
- శక్తిని పునరుద్ధరించండి: సర్క్యూట్ బ్రేకర్ లేదా ఫ్యూజ్ బాక్స్ వద్ద పవర్ను తిరిగి ఆన్ చేయండి.
- పరీక్ష ఆపరేషన్: Test the timer switch to ensure it functions correctly.
The timer switch is designed for universal compatibility and fits into standard single or multiple gang outlet boxes. Only one single gang cover plate is included with the product.

Figure 3: The timer switch is compatible with various gang box configurations.
ఆపరేటింగ్ సూచనలు
The Fosmon Countdown Light Timer Switch features a single illuminated button and a series of LED indicators for easy operation.

Figure 4: Illuminated button and LED indicators for timer settings.
- టైమర్ని యాక్టివేట్ చేస్తోంది: Press the large illuminated button at the bottom of the switch. Each press will cycle through the available countdown settings.
- Selecting a Time Setting: The switch offers 9 pre-set options: 5 minutes, 10 minutes, 15 minutes, 20 minutes, 30 minutes, 1 hour, 2 hours, 4 hours, and OFF. Continue pressing the button until the red LED indicator next to your desired time setting illuminates.
- Countdown Indication: Once a time setting is selected, the red LED for that setting will remain lit. As the countdown progresses, the illuminated LED will shift to the next lower time interval, providing a visual indication of the remaining time. For example, if set to 30 minutes, the 30-minute LED will be lit. When 15 minutes remain, the 15-minute LED will light up, and so on.
- ఆటోమేటిక్ షట్-ఆఫ్: The connected device will automatically turn off once the selected countdown period expires.
- Manual Override/Turn Off: To turn off the device before the countdown completes, repeatedly press the button until the "OFF" setting is reached, or press and hold the button for approximately 2 seconds.

Figure 5: The timer offers 8 distinct countdown intervals plus an OFF setting.
The blue illuminated button provides visibility and ease of use even in dark environments.

చిత్రం 6: ఉదాamples of the timer switch's versatile applications in a home environment.
నిర్వహణ
The Fosmon Countdown Light Timer Switch requires minimal maintenance.
- శుభ్రపరచడం: To clean the switch and wall plate, wipe with a soft, damp cloth. Do not use abrasive cleaners, solvents, or harsh chemicals, as these may damage the finish or internal components. Ensure power is off before cleaning.
- తనిఖీ: Periodically inspect the switch for any signs of damage, loose connections, or wear. If any issues are found, turn off power immediately and consult a qualified electrician.
ట్రబుల్షూటింగ్
| సమస్య | సాధ్యమైన కారణం | పరిష్కారం |
|---|---|---|
| Switch does not turn on or respond. | No power to the switch; loose wiring; incorrect wiring. | Check circuit breaker/fuse. Ensure power is restored. Verify all wire connections are secure. Re-check wiring against the diagram, especially Line, Load, and Neutral connections. |
| Connected device does not turn off after selected time. | Incorrect wiring (Load wire not properly connected); internal malfunction. | Turn off power and re-check Load wire connection. If wiring is correct, the unit may be faulty; contact customer support. |
| LED indicators are not lighting up. | No power; internal malfunction. | Ensure power is on. If power is present and the switch is not responding, contact customer support. |
| Switch feels warm to the touch. | Overload; loose connection. | Ensure the connected load does not exceed the switch's maximum ratings (1875W, 15A). Turn off power and check for loose wire connections. If the issue persists, discontinue use and contact customer support. |
For issues not listed above, or if troubleshooting steps do not resolve the problem, please contact Fosmon Customer Support.
వారంటీ మరియు మద్దతు
పరిమిత జీవితకాల వారంటీ: Fosmon stands behind the quality of its products. This product is covered by a limited lifetime warranty. For details regarding the warranty policy, please refer to the warranty information provided with your purchase or visit the official Fosmon webసైట్.
కస్టమర్ మద్దతు: For technical assistance, warranty claims, or general inquiries, please contact Fosmon Customer Service. Our experienced and dedicated USA-based customer service team is available to assist you.
సంప్రదింపు సమాచారం:
- Webసైట్: www.fosmon.com
- ఇమెయిల్: సూచించండి webసంప్రదింపు ఫారమ్ లేదా ఇమెయిల్ చిరునామా కోసం సైట్.
- ఫోన్: సూచించండి website for phone support hours and number.
Please have your product model number (HD8200) and purchase information ready when contacting support.





