Non-Frost Refrigerator wiring:

This circuit shows how to make Non-Frost Refrigerator wiring. In this circuit, we use a door switch, a thermostat, a timer, a fan motor, an overload, a capacitor, a defrost heater, a thermal fuse, and a biometer. This circuit is very easy to make connections. If you want to know more about this circuit please check our youtube video at the below post.


Diagram of Non-Frost Refrigerator wiring:

Non-Frost Refrigerator wiring

Components needed For this Project:

You can get the components from any of the sites below:

  1. Push Switch [See Buy Click Amazon]
  2. Thermostat Switch [See Buy Click Amazon]
  3. Refrigerator Timer [See Buy Click Amazon]
  4. Refrigerator Fan [See Buy Click Amazon]
  5. Refrigerator Overload [See Buy Click Amazon]
  6. 20 MFD Capacitor (220V ac Line) [See Buy Click Amazon]
  7. Defrost Heater [See Buy Click Amazon]
  8. Thermal Fuse [See Buy Click Amazon]
  9. Bio Meter [See Buy Click Amazon]
  10. 5 Pin Relay DC Line [See Buy Click Amazon]
  11. Light 220V AC [See Buy Click Amazon]

*Please note: These are affiliate links. I may make a commission if you buy the components through these links. I would appreciate your support in this way!

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Components used to make the Non-Frost Refrigerator wiring:

01. Door Switch:

In industry the switch connected to the magnetic contactor of the motor controlling circuit is manually/pushed by the operator and has elasticity i.e. can return to its original position by means of a spring when released is called a pushbutton switch. Push-button switches are used with electric Motor starters, with calling bells, and sometimes as temporary supplies in lamp circuits. When the pushbutton switch is pushed and released, the control circuit is de-energized when it returns to its original position. So latching is done to hold the power.

02. Thermostat:

Meaning of Thermostat The word thermo means heat and with the help of heat the Electrical circuit is switched on and off is called a thermostat. The thermostat switch is the control device of the fridge/refrigerator. which directly or indirectly controls one or more heat sources and cooling systems to maintain the refrigerator is required temperature. The role of the thermostat is important to automate the cooling system of the fridge/refrigerator. A thermostat switch is a sensitive device that automatically converts the temperature of the refrigerator.

03. Timer:

A timer is a type of time-switching device that controls and controls Electrical circuits and electrical and electronic devices through time setting (on/off). The timer is basically 8-pin. Like other controlling devices the timer has a coil and when this coil is magnetized, the timer works on/off. The timer has 2 common ends and each common end has normally close and normally open options. When the timer is set by time, the timer trips at the end of that time and turns the common is normally closed (on) to open (off) and normally open (off) to close (on). This is how the timer works.

04. Fan Motor:

The evaporator fan motor distributes the cold air that has been generated system. The fan blade will be shaped so that it draws air through the Evaporator and circulates it around the cabinet set. The Evaporator fan will operate with the Compressor motor. there can be a door switch that will off the fan. If the compressor and fan motors are continuously running. it means the system is having trouble maintaining the temperature control.

05. Overload:

Overload Protection is Protection Against a Running Overcurrent That Would Cause Overheating of The Protected Equipment. Hence, An Overload is Also a Type of Overcurrent flow. Overload Protection Typically Operates on an Inverse Time curve where the Tripping Time Becomes less as the Current Increases. This Overload Protector is an Essential Component for Many Sockets Power Systems. The Top-Quality Overload Protector can Effectively Protect Electrical Products from Power Surges.

06. Capacitor:

Motor Starting Capacitors are used during the Motor Startup Phase and are Disconnected From the Circuit once the Rotor Reaches a Predetermined Speed, Which is Usually about 75% of the Maximum Speed for that Motor type. These Capacitor Usually Have Capacitance Values Of Over 70 UF. The Starting capacitor creates a Current-to-Voltage lag in the Separate start Windings of the Motor. Starting Capacitor are Wired into The Auxiliary Winding Circuit of the Motor and are Disconnected from the main winding circuit by the Centrifugal Switch once the Motor has Reached a Predetermined Speed.

০7. Defrost Heater:

Defrost heaters are used to melt ice formations in refrigeration equipment. They are caused by defrosting water, which freezes inside the lower freezing cold room, collecting in trays or defrost lines. For trays, tubular heaters of various designs are installed. To defrost pipes, wire heaters are wrapped around the pipe. Defrost cable heaters are made in two models, with or without self-regulating elements. A defrost heater is used to help ice conformation in the Refrigerator and is controlled by a Thermostat.

08. Thermal Fuse:

A thermal Fuse or Thermal Cutoff is a Safety Device That Open Circuits Against overheating. It Detects the Heat Caused by the Over-Current flow Due to Short Circuits or Component Breakdown. Thermal Fuses do not Reset Themselves when the Temperature drops as a circuit breaker would. A Thermal fuse must be replaced when it fails or is Triggered in 220v ac line. Thermal fuses 220v AC Line only react to excessive temperature, Unlike electrical fuses or circuit breakers (CB), not excessive Current, unless the excessive current is sufficient to cause the Thermal fuse Itself to heat up to the Trigger Temperature system.

09. Biometer:

Biometrics is a scientific and technological authentication method based on biology and is used in data assurance. Biometrics refers to statistics about humans. Biometrics identification is a widely used identification method in computer science. It is used to monitor an individual. Biometric identifiers identify a person by looking at certain physical characteristics system. Biometric devices convert a person is personal characteristics into a digital code system.

10. Relay:

Relay is a switching device. If current flows through the coil, the coil inside the coil is magnetized and the circuit can be regulated and controlled by on-off switching. Relays are also called protective devices because they close the circuit, component, or device in an emergency to protect it from being burned or damaged. Almost all relays have two source pins and the coil is connected to that source pin. If voltage is applied to this coil then a magnet is created in this coil.

11. Light:

CFL stands for Compact Fluorescent Lamp which is an improved version of tube lights of earlier days. Like tube lights, it is a vacuum glass tube with fluorescent powder coating which is not as long and straight as tube lights but curved/twisted compact, or small in size. Like a tube light, it has electrodes or filaments at both ends. But in this case, instead of a choke, there is an electronic circuit that drives the Compact Fluorescent Lamp. Because the red wave is less in the light of the Tubelight and Compact Fluorescent Lamp, the object looks a little pale or the correct color of the object does not appear.

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Frequently asked questions

What is the No Frost system in the refrigerator?

The No Frost technology automatically adjusts and controls the temperature and humidity levels inside the refrigerator. This technical solution prevents frost from occurring on the food products by means of proper air circulation and drying.

Are all refrigerators frost-free?

Because of the time saved manually defrosting, these options are considered by many to be the best fridge freezer choice, as well as one of the most convenient household appliances to have. Many of the latest models – not all – come with the frost-free technology.

Which compressor is best for refrigerators?

The most popular compressor type is the reciprocating compressor. The advantages of reciprocating the compressor include their lower cost, but they are also louder than other compressor types. A rotary compressor is a quieter or more efficient option than a reciprocating compressor.

Which inverter is best for refrigerators?

As a general rule, a 2,000W inverter could run a refrigerator smoothly. Your inverter would need to handle the continuous wattage as well as handle the surge power supply for a split second. Most refrigerators require a power supply of 300-600 watts, but the surge wattage could be about 2-3 times higher.

Is Whirlpool a good refrigerator?

Whirlpool refrigerators are not known for fancy Wi-Fi capabilities and smart windows, but they consistently rank well across retailer sites for satisfaction or reliability. If you buy directly from Whirlpool.

Read more Single Phase Wiring


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