1. ആമുഖം
The Intermatic K4021C is a 120-Volt fixed position thermal photocontrol designed for automatic control of outdoor lighting. This device senses ambient light levels to turn lights on at dusk and off at dawn, providing energy efficiency and convenience. It is suitable for both commercial and residential applications, including standard outlet boxes, post lamps, and wall packs.
പ്രധാന കുറിപ്പ്: This photocontrol is NOT FOR LED APPLICATIONS.
2 സുരക്ഷാ വിവരങ്ങൾ
WARNING: Risk of Electric Shock. Disconnect power at the circuit breaker or fuse box before installation or servicing. Installation should be performed by a qualified electrician in accordance with all national and local electrical codes.
- Ensure the power supply matches the device's voltagഇ റേറ്റിംഗ് (120 വോൾട്ട്).
- Do not exceed the maximum load ratings: 8.3 Amps, 1800 Watts for Tungsten; 15 Amps, 1000 VA for Magnetic Ballast.
- Protect wiring from sharp edges and abrasion.
- എല്ലാ കണക്ഷനുകളും സുരക്ഷിതവും ശരിയായി ഇൻസുലേറ്റ് ചെയ്തതുമാണെന്ന് ഉറപ്പാക്കുക.
3. ഇൻസ്റ്റലേഷൻ നിർദ്ദേശങ്ങൾ
The K4021C photocontrol is designed for easy integration into various lighting fixtures. It features a 3/8-inch-18 threaded side mounting with a locking nut and washer gasket for secure installation. The unit comes with 9-inch leads for wiring connections.
3.1 മൗണ്ടിംഗ്
- Choose a mounting location where the photocontrol's sensor will receive unobstructed natural light during the day and will not be affected by artificial light sources at night (e.g., nearby streetlights, windows).
- Drill a suitable hole (if not already present) for the 3/8-inch-18 threaded nipple.
- Insert the threaded nipple of the photocontrol through the mounting hole.
- Secure the photocontrol using the provided locking nut and washer gasket. Ensure a tight seal to prevent moisture ingress.
ചിത്രം 1: കോണാകൃതിയിലുള്ളത് view of the Intermatic K4021C photocontrol, highlighting the threaded nipple and locking nut for secure mounting.
3.2 വയറിംഗ്
The K4021C photocontrol has three color-coded wire leads:
- ബ്ലാക്ക് വയർ: Connect to the 120-Volt AC Line (Hot) input.
- വൈറ്റ് വയർ: Connect to the Neutral wire.
- റെഡ് വയർ: Connect to the Load (lighting fixture) input.
- Ensure power is OFF at the circuit breaker before making any connections.
- Connect the black wire of the photocontrol to the incoming 120-Volt AC Line (Hot) wire from the power source.
- Connect the white wire of the photocontrol to the Neutral wire from the power source and to the Neutral wire of the lighting fixture.
- Connect the red wire of the photocontrol to the Hot wire of the lighting fixture.
- ഉചിതമായ വയർ നട്ടുകളോ കണക്ടറുകളോ ഉപയോഗിച്ച് എല്ലാ വയർ കണക്ഷനുകളും സുരക്ഷിതമാക്കുക.
- Carefully tuck all wires into the junction box or fixture, ensuring no wires are pinched.
- Restore power and test the unit.
ചിത്രം 2: മുൻഭാഗം view of the Intermatic K4021C photocontrol, showing the black, white, and red wire leads for electrical connections.
Figure 3: Close-up of the Intermatic K4021C photocontrol, detailing the light sensor and wire connections.
4. ഓപ്പറേഷൻ
The K4021C photocontrol operates automatically based on ambient light levels:
- Activation ON (at Dusk): The photocontrol will turn the connected lighting fixture ON when the ambient light level drops to approximately 1-5 footcandles.
- Activation OFF (at Dawn): The photocontrol will turn the connected lighting fixture OFF when the ambient light level rises to approximately 3-15 footcandles.
4.1 Delay Feature
This photocontrol incorporates a delay feature to prevent unwanted ON/OFF switching due to transient light changes, such as car headlights, lightning, or other temporary light sources. This ensures stable and reliable operation of your lighting system.
വീഡിയോ 1: ഔദ്യോഗിക ഉൽപ്പന്നം അവസാനിച്ചുview video for the Intermatic K4021C Thermal Photocontrol, demonstrating its features and applications, including the dusk-to-dawn operation and delay feature.
5. പരിപാലനം
The Intermatic K4021C photocontrol is designed for maintenance-free operation. However, periodic inspection is recommended to ensure optimal performance:
- Keep the photocontrol's sensor lens clean and free from dirt, dust, or obstructions that could interfere with light sensing.
- Periodically check wiring connections for tightness and signs of corrosion.
- Ensure the photocontrol is securely mounted and not loose.
6. പ്രശ്നപരിഹാരം
| പ്രശ്നം | സാധ്യമായ കാരണം | പരിഹാരം |
|---|---|---|
| Lights stay on during the day. | Sensor is obstructed or receiving insufficient light. | Clean the sensor lens. Relocate the photocontrol to an area with more direct natural light. |
| രാത്രിയിൽ വിളക്കുകൾ കത്തുന്നില്ല. | No power to the photocontrol; faulty wiring; sensor receiving too much artificial light. | Check circuit breaker. Verify wiring connections. Relocate the photocontrol away from artificial light sources. |
| Lights flicker or cycle ON/OFF rapidly. | Sensor is exposed to intermittent light sources (e.g., car headlights, reflections). | The built-in delay feature should mitigate this. If persistent, try to shield the sensor from transient light sources or relocate. |
| Photocontrol does not respond. | Unit failure; incorrect wiring. | Verify all wiring connections. If problem persists, the unit may need replacement. |
7 സ്പെസിഫിക്കേഷനുകൾ
| ഫീച്ചർ | സ്പെസിഫിക്കേഷൻ |
|---|---|
| മോഡൽ നമ്പർ | K4021C |
| ഓപ്പറേറ്റിംഗ് വോളിയംtage | 120 വോൾട്ട് എസി |
| നിലവിലെ റേറ്റിംഗ് | 15 Amps |
| Tungsten Load | 1800 വാട്ട്സ് |
| Magnetic Ballast Load | 1000 വി.എ |
| ഓപ്പറേഷൻ മോഡ് | ON-OFF (Dusk-to-Dawn) |
| ബന്ധപ്പെടാനുള്ള തരം | സാധാരണയായി തുറന്നിരിക്കുന്നു |
| കണക്റ്റർ തരം | Clamp |
| അതിതീവ്രമായ | ബട്ടൺ |
| മെറ്റീരിയൽ | പോളികാർബണേറ്റ് |
| വയർ ലീഡുകൾ | 9-Inch, #18 AWG |
| മൗണ്ടിംഗ് | 3/8-Inch-18 NPSM Threaded Stem |
| അളവുകൾ (L x W x H) | 8 x 8 x 8 ഇഞ്ച് (ഉൽപ്പന്ന അളവുകൾ) |
| ഇനത്തിൻ്റെ ഭാരം | 0.96 ഔൺസ് |
| അന്താരാഷ്ട്ര സംരക്ഷണ റേറ്റിംഗ് | IP54 |
| അനുയോജ്യമായ ഉപകരണങ്ങൾ | Fluorescent, HID, Incandescent |
| നിറം | White (Housing) |
8. വാറൻ്റിയും പിന്തുണയും
This Intermatic K4021C photocontrol comes with a 5 വർഷത്തെ വാറൻ്റി from the date of purchase. For warranty claims or technical support, please contact Intermatic customer service. Keep your proof of purchase for warranty validation.
