Primary Title: 8145 20 Timer Wiring Diagram
Introduction
In this article, we will discuss the 8145 20 timer wiring diagram. The 8145 20 timer is a versatile device used in various applications, including refrigeration, air conditioning, and heating systems. The timer is designed to control the operation of equipment that requires timed cycles, such as defrost cycles, fan cycles, or compressor cycles.
The 8145 20 timer has a simple design and is easy to install. However, it is essential to understand the wiring diagram of the timer to ensure proper installation and avoid damage to equipment.
Functionality of 8145 20 Timer
The 8145 20 timer has two main functions: timing and switching. The timer has a built-in clock that can be set to trigger timed cycles at regular intervals. The switching function of the timer is used to turn on or off the equipment, based on the timed cycle.
The timer also has various settings that can be adjusted to suit different applications. These settings include defrost termination, defrost duration, and fan delay.
To understand the wiring diagram of the 8145 20 timer, it is essential to know the function of each terminal on the timer. The terminals are as follows:
| Terminal | Description |
|---|---|
| 1 | Defrost termination |
| 2 | Defrost heater |
| 3 | Compressor |
| 4 | Fan |
| 5 | Neutral |
| 6 | Line |
| 7 | Defrost duration |
| 8 | Fan delay |
Wiring Diagram of 8145 20 Timer
The wiring diagram of the 8145 20 timer is as follows:
Terminal 1
Terminal 1 of the 8145 20 timer is used to terminate the defrost cycle. This terminal is connected to the temperature sensor in the evaporator. When the temperature of the evaporator reaches the set point, the defrost cycle is terminated.
Terminal 1 is also connected to the defrost termination switch, which is used to manually terminate the defrost cycle.
Terminal 2
Terminal 2 of the 8145 20 timer is used to connect the defrost heater. The defrost heater is used to melt the ice that forms on the evaporator during the defrost cycle.
Terminal 3
Terminal 3 of the 8145 20 timer is used to connect the compressor. The compressor is turned on or off based on the timed cycle set on the timer.
Terminal 4
Terminal 4 of the 8145 20 timer is used to connect the fan. The fan is turned on or off based on the timed cycle set on the timer.
Terminal 5
Terminal 5 of the 8145 20 timer is connected to the neutral wire.
Terminal 6
Terminal 6 of the 8145 20 timer is connected to the line voltage.
Terminal 7
Terminal 7 of the 8145 20 timer is used to set the defrost duration. The defrost duration can be set between 4 and 110 minutes.
Terminal 8
Terminal 8 of the 8145 20 timer is used to set the fan delay. The fan delay can be set between 0 and 60 minutes.
FAQ
What is the purpose of the 8145 20 timer?
The 8145 20 timer is used to control the operation of equipment that requires timed cycles, such as defrost cycles, fan cycles, or compressor cycles.
What are the settings that can be adjusted on the 8145 20 timer?
The settings that can be adjusted on the 8145 20 timer include defrost termination, defrost duration, and fan delay.
What is the wiring diagram of the 8145 20 timer?
The wiring diagram of the 8145 20 timer includes terminals for defrost termination, defrost heater, compressor, fan, neutral, line, defrost duration, and fan delay.
Is the installation of the 8145 20 timer complicated?
No, the installation of the 8145 20 timer is straightforward. However, it is essential to understand the wiring diagram of the timer to ensure proper installation.
What applications can the 8145 20 timer be used for?
The 8145 20 timer can be used in various applications, including refrigeration, air conditioning, and heating systems.
What are the benefits of using the 8145 20 timer?
The benefits of using the 8145 20 timer include improved energy efficiency, reduced equipment wear and tear, and increased equipment lifespan.
Conclusion
The 8145 20 timer is a versatile device used in various applications, including refrigeration, air conditioning, and heating systems. The timer is designed to control the operation of equipment that requires timed cycles, such as defrost cycles, fan cycles, or compressor cycles. Understanding the wiring diagram of the 8145 20 timer is essential to ensure proper installation and avoid damage to equipment.
