Intermatic K4021C 120-Volt Thermal Photocontrol Instruction Manual

1. บทนำ

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.

หมายเหตุสำคัญ: This photocontrol is NOT FOR LED APPLICATIONS.

2. ข้อมูลด้านความปลอดภัย

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.

• ตรวจสอบให้แน่ใจว่าแหล่งจ่ายไฟตรงกับแรงดันไฟฟ้าของอุปกรณ์tagพิกัดไฟฟ้า (120 โวลต์)
• 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.
• ตรวจสอบให้แน่ใจว่าการเชื่อมต่อทั้งหมดมีความปลอดภัยและมีฉนวนป้องกันอย่างเหมาะสม

3. คำแนะนำในการติดตั้ง

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 การติดตั้ง

1. 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).
2. Drill a suitable hole (if not already present) for the 3/8-inch-18 threaded nipple.
3. Insert the threaded nipple of the photocontrol through the mounting hole.
4. Secure the photocontrol using the provided locking nut and washer gasket. Ensure a tight seal to prevent moisture ingress.

รูปที่ 1: มุม view of the Intermatic K4021C photocontrol, highlighting the threaded nipple and locking nut for secure mounting.

3.2 การเดินสายไฟ

The K4021C photocontrol has three color-coded wire leads:

• สายสีดำ: Connect to the 120-Volt AC Line (Hot) input.
• ลวดขาว: Connect to the Neutral wire.
• สายสีแดง: Connect to the Load (lighting fixture) input.

1. Ensure power is OFF at the circuit breaker before making any connections.
2. Connect the black wire of the photocontrol to the incoming 120-Volt AC Line (Hot) wire from the power source.
3. Connect the white wire of the photocontrol to the Neutral wire from the power source and to the Neutral wire of the lighting fixture.
4. Connect the red wire of the photocontrol to the Hot wire of the lighting fixture.
5. ยึดสายไฟทั้งหมดให้แน่นด้วยน็อตหรือตัวเชื่อมต่อสายไฟที่เหมาะสม
6. Carefully tuck all wires into the junction box or fixture, ensuring no wires are pinched.
7. Restore power and test the unit.

รูปที่ 2 : ด้านหน้า 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. การดำเนินการ

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.

5. การบำรุงรักษา

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 การแก้ไขปัญหา

7. ข้อมูลจำเพาะ

8. การรับประกันและการสนับสนุน

This Intermatic K4021C photocontrol comes with a รับประกัน 5 ปี from the date of purchase. For warranty claims or technical support, please contact Intermatic customer service. Keep your proof of purchase for warranty validation.