Mr frozen DC 12/24V Freezer User Manual

: October 30, 2023
: Mr frozen

Table of Contents

Product Features
Connection Schematic Diagram
Illustration
Operating Instruction
Trouble Shooting
Knowledge of usage
Clean and maintenance
Product Specification
References
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Mr frozen DC 12/24V Freezer User Manual

Product Features

Mr.frozen use latest high performance DC compressor with excellent coolingperformance, lower noise and small vibration. The cabinet is super thickness foaminginsulation which is featuring excellent heat preservation and energy saving.
Microcomputer precise temperature control and indicate the temperatureaccurately inside. Easy to operate by pressing the button.
The compressor is the frequency conversion type. There are two options, one is Max mode that the compressor running in full speed, the other is Eco mode that thecompressor running economically.
The freezers can be supplied by DC 12V/24V power source directly
The device is equipped with a three-lever battery voltage button (H/M/L) that protects your battery against excessive discharging when the device is connectedtothe battery in the solar power system or the battery alone. Generally buyer is suggested to set H when there is much power supply, and set L when the power supply is less.
Cooling performance graph

Connection Schematic Diagram

Illustration

Cable size

Cross Setion	Max Length
12vdc	24vdc
mm2	awg
2.5	12
4	11
6	9
10	7

Operating Voltage Fuse

Operating Voltage	Fuse
12V	20A
24V	15A

tructure Drawing

Operating Instruction

Icon	Operation	Purpose
Press the power switch for 3 seconds to power on or power off	Power

Note: memory of setting: the fridge with memory recovery function although it is powered off. It keeps memory of set temperature, cut-off voltage, Max/Eco mode and ℃/℉ readout.

Cut-off Voltage Data Sheet

Degree| 12V cut-off voltage| 12V recovery voltage| 24Vz cut-off voltage| 24V recovery voltage
---|---|---|---|---
L| 10.0V| 11V| 21.6V| 23.0V
M| 10.7V| 11.7V| 22.6V| 24.0V
H| 11.5V| 12.5V| 24.6V| 26.0V

Note:

Before connecting the unit to the power source, let it stand upright for approximately 2 hours. This will reduce the possibility of a malfunction in the cooling system from handling duringtransportation.
It is recommended to store the contents after the cabinet temperature below 0.

Defrost

Water vapor may ice on the inner cabinet. This will reduce the cooling performance of the fridge. It is necessary to defrost the freezer when the frost layer reaching to 5-7mm. Please followup the steps as below.

Freezing the content at the lowest temperature for a period to prevent from melting during the power-off time.
Power off the freezer and take out of the content, then try to prevent from melting the content.
Open the door, and wipe off the frost layer when it is melting.
Dry the cabinet with a clean towel. Power on the freezer and take back the content.
Note: Don’t use sharp items to defrost in order to avoid damaging the evaporator.

Trouble Shooting

1.No cooling function	If the voltage is normal?

If the power cord connect well?
If the adaptor connect well?
2.cooling effect is bad| If the product exposed to the sunlight or very close to heat source?
If the compressor or condenser covered with dust?
If the content inside of the product too much or there is hot content inside?
3.Non-stop for a long time| If the door seal is not good enough?
If there is too much frost inside?
If the ambient temperature is too high.
If too much hot things put inside of the product.
4.Big noise fromthe product| If the floor is even and stable?If the product install evenly.
If the back of the freezer very close to the wall.
5.Error indication| Err0:malfuntion of temperature sensor.
Err1:over voltage or under voltage.
Err2:big current on cooling fan.
Err3:bad heat dissipation and lock-rotor of compressor.

The following issues are not trouble

Sometimes there is frost on the surface of fridge caused by high ambient temperature or infrequent door opening. Buyers can wipe the frost off.
There is sound of water flow or water boiling which is the sound of refrigerant flowing normally.
When the freezer is working, compressor and condenser will heat, these are normal phenomenon.
The compressor will be working for a long time when storing too much food over heat.
The compressor will be working for a long time to keep the inner cabinet temperature when the ambient temperature is very high.
Notice： When the freezer got problems, please check by this manual first. If the problems still can not be resolved, please contact distributor or local service counter. Please do not disassemble without expert guide.

Knowledge of usage

Keep appropriate gap between stored items is conducive to the circulation of cold air and heat exchange the cooling performance will be better
Always cool the food or drink before storing them into the freezer.,
The freezer reboot after 5 minutes power-off time is necessary, otherwise it will affect the life of the compressor, or even damage the compressor.
Do not open the door more than necessary and longer to save energy
According to the needs of storage items to choose the appropriate temperature unnecessary freezing will cause power waste.
The temperature can be set lower before the expected black out, then the compressor accordingly working longer, meantime reduce the times of opening and closing freezer doors. Please avoid toopen and close freezer doors frequently as well as put into more content during black-out period

Clean and maintenance

Clean the freezer with a soft cloth moistened with lukewarm water.
Never use solvents or abrasive cleaners as this will damage the freezer Do not use scourers or scrapers to clean your freezer.
Use a soft dry cloth to completely dry the freezer after cleaning.
If the refrigerator is to be long-term disable should cut off the power and clean , open the door a few days in order to maintain internal dry.
Pay attention that no water drops into the vents as this maybe lead to damage to the electric components.
Check the following items after maintenance: