Refrigerated trucks or freezer trucks are specifically designed to transport perishable goods at controlled temperatures. This type of vehicle is widely used in many fields, such as the food, pharmaceutical or chemical fields, where products require low storage temperatures to preserve their properties or make them suitable for consumption.

Chapter 1. General Description
CS TRUCKS Freezer Truck based on ISUZU NPR truck chassis, refrigerator body length could up to 5 meters, mainly used to transport frozen or fresh goods, and the working aerial can be villages, downtowns, cities, and other areas of need.
The vehicle designed to fully rely on the advantages of the original ISUZU NPR 4*2 LHD chassis, fully consider the product's convenience and reliability. The freezer body material is international standard, both internal and external use glass fiber reinforced plastics, in the middle use 80mm polyurethane foam, have good effect for warm preservation. Both door lock and hinge use stainless steel casting, which have good performance and long service life. The freezer truck equipped with English guidance control box for easy operation. And can cover all customers’ frozen or fresh goods transportation requirement.
The ISUZU 4*2 Freezer Truck equipped with 5 m length refrigerator body and famous brand refrigeration units, cabin control box, whole white painting. Therefore, the vehicle is an ideal Refrigerator Truck mainly used for frozen or fresh goods delivery.




Chapter 2 Main Technical Data
Basic parameters:
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Items |
ISUZU Freezer Truck |
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| SIZE |
Outer Dimension(L×W×H)(mm) |
7900×2250×3300 |
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Wheelbase (mm) |
4475 |
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Kerb Weight(kg) |
5000 |
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GEAR |
Gearbox brand |
ISUZU |
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Model |
MLD 6-shift gearbox |
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Type |
Manual |
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|
Cab capacity(includes driver) |
2+1 |
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| ENGINE |
Model |
ISUZU 4HK1-TCG40 |
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Type |
Four cylinder inline, four stroke, turbocharged Inter-cooling, diesel |
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|
Rating Power(kW/HP) |
140 / 190 |
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Freezer box parameters:
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Items |
Parameter |
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Refrigerator Body |
Dimension (mm) |
7000*2100*2400 |
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Material |
External |
Glass Fiber Reinforced Plastics |
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Middle |
8mm Polyurethane Foam |
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Internal |
Glass Fiber Reinforced Plastics |
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Door Lock material |
Stainless Steel |
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Door Hinge material |
Stainless Steel |
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Door |
Rear |
Two Hinged Door |
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Side |
One Hinged Door |
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Refrigeration Units |
Control Box |
Manual Operation Box in Cabin |
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Operation |
As Following |
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Safety Assurance |
Balance valve for safety |
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Chapter 3 Freezer Truck Structure Components
Overviews for ISUZU 4*2 freezer truck:

Above picture show the freezer truck dimension for reference; the refrigerator body designed based on requirement, with length can be 5 meters. Both rear and side door for easy operation.
Left View: Refrigerator Units, Convenient side door

Rear View: Hinged Rear Door


Chapter 4 Freezer Truck Working Principles
The operator should fully understand Whole Structure and Working Principle for ISUZU 4*2 Freezer Truck before any operation. Only trained person can operate this vehicle properly and to prevent unnecessary accidents and equipment damage.
ⅰHow dose the Freezer Truck work?
The ISUZU 4*2 Freezer Truck makes use of the special power take off (PTO) to get power from the engine, and then use the power to control refrigerator units. Operate the Control Box in cabin to adjust the temperature in freezer body. Then can be used for frozen and fresh goods transportation.
ⅱWhat is the main component for truck?
The freezer truck is refitted based on the ISUZU LHD 4*2 chassis. The refit part includes Refrigerator Units, Freezer Body and Operation System.
A Refrigerator Units: Famous brand, which is used to adjust temperature of the body.
B Freezer Body: 7 meters long body, with rear hinged door and side door for easy operation.
C Operation system: Control box inside of cabin for easy operation
ⅲ How to operate freezer trucks?. (Very Important)
1) Ready to work
(If idle for a long time, please keep the truck engine run for a few minutes. Also, should ensure fuel tank and water tank are enough. )
Step 1
Start the truck engine. Operate the Control Box to make refrigerator units working.

NOTE: Please start the truck engine firstly, and then turn on the refrigerator!
Please turn off the refrigerator units firstly, and then stalling the truck engine!
Step 2
Be familiar with Control Box then can control the Freezer truck

ON/OFF Button: Control the Refrigerator Units ON & OFF
Turn ON Operation → Press once, the refrigerator units start working (Bumming once)
Turn OFF Operation → Press two second, the refrigerator units stop working (Bumming three times)
Display Button: Control the Screen display
Operation 1, Press Shortly → Screen show the temperature, which can change from Body Temperature to Defrost Temperature.
Operation 2, Press Longly → Screen show Working Voltage and Refrigerator Units Working Time.
Defrost Button: Control the defrost function
Press two second
Bumming three times → Defrost function start, indicator is ON
Bumming five times → Defrost function temperature setting not suitable, you need to change the temperature setting.
After amend the temperature setting, and then you can control the defrost function.
Setting Button / Increase Button / Decrease Button: Control the Refrigerator Units Temperature
Setting Button Operation → Press once, the screen show the Setting Temperature or Sensor Temperature (Basic show)
Temperature Operation → When screen show Setting Temperature, press Increase Button and Decrease Button to adjust the temperature.
|
Indicator |
Status |
Remark |
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|
Yellow Colour |
Refrigerator Units standby status, and ready for normal working |
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|
Blue Colour |
Refrigerator Units normally working |
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Light |
Defrosting Working ON |
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Twinkle |
Defrosting Working OFF |
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On |
Evaporation Fan start working |
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On |
Heating Mode |
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On |
Electrical heating start working |
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On |
Warning light |
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On |
Refrigerator Units connected with standby power, and normal working under standby power |
Refrigerator Units Working Principle:

Chapter 5 Alarm Signal Treatment
|
Indicator |
Illustration |
Generated Quantity |
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P1-H |
Body temperature sensor short circuit |
Alarm action, compressor controlled by CON and COF parameter |
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P1-L |
Body temperature sensor open circuit |
Alarm action, compressor controlled by CON and COF parameter |
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P2-H |
Body temperature sensor short circuit |
Alarm action, others not change |
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P2-L |
Body temperature sensor open circuit |
Alarm action, others not change |
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HA |
High temperature alarm |
Alarm action, others not change |
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LA |
Low temperature alarm |
Alarm action, others not change |
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HP |
High pressure alarm |
Alarm action, others signal all closed |
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LP |
Low pressure alarm |
Alarm action, others signal all closed |
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HUER |
Refrigerator Units high voltage |
Alarm action, others signal all closed |
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LUER |
Refrigerator Units low voltage |
Alarm action, others signal all closed |
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Fuse Failure |
Compressor Fuse Failure: FU01 |
Except for Evaporation Fan Fuse Failure, all others will make refrigerator units stop working |
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Condensate Fan Fuse Failure: FU02 |
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Evaporation Fan Fuse Failure: FU03 |
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Defrost Valve Fuse Failure: FU04 |
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Stop Valve Fuse Failure: FU05 |
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Standby Power |
Standby power working condition, but cannot detect AC power |
All refrigerator units stop working. Restart the control box if necessary. |
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Note: 1. when trouble happens; trouble code and temperature alternate display, and bumming six times. Press any button to cancel alarm code display 2. If trouble code more than 2 units, the screen will show Er r2 / Er r3 3. Cancel alarm, the trouble code will not display any more. But trouble light on all the time, and can check the trouble code. |
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Chapter 6 Maintenance
Please kindly checking below information for regular maintenance.
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First Time Maintenance |
Carefully check the tightness of bolts and nuts, and check the Refrigerator Units’ installation position ok or not Carefully check if any leakage Carefully check the Compressor revolving speed RPM right or not Carefully check the Compressor belt tension Carefully check the Standby Power bolt tightness Carefully check the Standby Power abrasion |
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Maintenance A |
Clean the battery and battery holder Carefully check the Compressor belt tension Change the Compressor belt every 3000 hours Carefully check if the refrigerant leakage Carefully check all electrical connection Carefully check refrigeration mode Carefully check defrost mode Carefully check cabin control box operation status Clean the condenser coil Carefully check the Standby Power bolt tightness Carefully check the Standby Power abrasion |
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Maintenance B |
If necessary, change the tension wheel bearing |
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Every Year |
Change filter desiccant Clean the expansion valve filter |
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Every Two Years |
Change Compressor oil Change refrigerant Change expansion valve |
Chapter 7 Troubleshooting
Please kindly checking below possible troubleshooting, which just for your reference.
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Malfunction |
Possible Reason |
Solution |
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Control Box cannot turn ON |
Control Box fuse damage Control Box broke down |
Change new fuse Change new Control Box |
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P1L / P2L warning |
Sensor poor contact |
Check the Sensor connector plug |
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P1H / P2H warning |
Sensor damage |
Check the line or change new Sensor |
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LP warning, Refrigerator Units stop working |
System low working pressure Pressure switch damage |
Check system leakage or block Change Pressure switch |
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HP warning, Refrigerator Units stop working |
System high working pressure Pressure switch damage |
Check Condensate Fan working or not Change Pressure switch |
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Compressor abnormal sound |
The belt too loose |
Tension the belt |
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Refrigerator Units not working |
Check the setting temperature |
Resetting the temperature |
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System working voltage too low |
Check the generator or device cathode |
Repair or change the generator Reconnect the cathode |
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Fuse problem |
Fuse damage |
Check and change the fuse |
|
NOSP |
Standby Power mode damage Standby Power mode feedback to screen disconnected |
Check the Standby Power mode Check the feedback circuit |






