48V 60V 72V 96V Backpack Air Conditioner S3

1. What's parking air conditioner?

 

Parking air conditioning (also known as parking cooler/ electric cabinet air conditioner) refers to battery powered air conditioner, consuming electricity from the vehicle battery (DC 12V/24V/36V/48V/60V/72V) instead of taking power from engine. It’s normally used in vehicle parking to control the temperature, humidity, flow rate to create a comfortable environment for drivers.

 

Parking air conditioner is widely used for trucks, construction machinery, campers, motorhomes, and other confined spaces. Compared with traditional vehicle air conditioners, parking air conditioners do not need to rely on vehicle engine power, which can save fuel and reduce environmental pollution.

 

Parking air conditioners are mainly for single-cooling, constituted of condenser, evaporator, electronic control system, compressor, fan and piping and others parts. For rooftop air conditioners, refrigerant HFC134a/R410A is prefilled in the air conditioning system. For split parking air conditioners, prefilled and un-prefilled types are for option.

 

Parking air conditioners are divided into rooftop air conditioners, split/backpacks air conditioners, and hidden and parallel air conditioning systems. While rooftop air conditioners require cutting the ceiling, for customers who cannot accept this situation, clients prefer split air conditioners.

 

To avoid vehicle not starting due to low battery power, all parking air conditioners are equipped with low-voltage/high-voltage protection, current overload protection and other protection functions. If there is any problem with the air conditioning system, the corresponding error code will show on the screen. According to the error code, the error code explanation and solution will be provided in the manual, which makes air conditioner repairment easier. The error code definitions for each model are different, so clients need to refer to different instructions.

 

2. Specifications for Truck Tractor 12V 24V 48V 60V 72V 96V Air Conditioner S3

 

Truck Tractor 12V 24V 48V 60V 72V 96V Air Conditioner S3 was launched in 2024. It was to meet clients' requirement for smaller outdoor unit. It's with scroll compressor, aluminum condenser and evaporator. It's constituted of indoor unit and outdoor unit. For indoor unit, 5 adjustable vents type, silent automatic swing outlets type, 202 evaporator, 404 evaporator and all other types match this outdoor unit. It looks smart and becomes popular once launched the market. For this type, 48V, 60V, 72V and 96V are available too.

Truck Tractor 12V 24V 48V 60V 72V 96V Air Conditioner S3 is more compact and looks smart. It's with split scroll compressor control board, easier to maintain when something goes wrong. For 48V, 60V, 72V, 96V types, they are exclusive and not easy to be found on the market, suitable for agricultural machinery, heavy machinery and special vehicles. All these parking air conditioners at the high voltages are customized. Please contact our salesmen to confirm the details.

 

Truck Tractor 12V 24V 48V 60V 72V 96V Air Conditioner
SNA-S3
Rated Voltage	12V	24V
Current	50-80A	35-50A
Rated Power	600-800W	800-1000W
Rated Cooling Capacity	7500-9000BTU/2000-2600W	7500-9000BTU/2000-2600W
Description	Different evaporator optional, with scroll compressor with high pressure and low pressure hoses each 3 meters
Performance Coefficient	≥2.5
Air flow	480-700 mc/h
Refrigerant	R134a
Refrigerant Oil	POE68
Compressor speed	1000-2800rpm
Charging Quantity of Refrigerant	600±30g
Temperature setting	15-30℃
Outdoor/ Indoor size	580*470*160mm / 480*150*310mm
Color	White, red, yellow and customized
Package	Outdoor: 70*56*30cm, 19KG;
	Indoor type A: 56*34*18cm; 5.5KG
	Indoor type B: 70*56*30cm, 8.5KG
OEM	Support

 

3. Notes for using parking air conditioners

 

In using parking air conditioner, please follow the instructions as below:

 

To set the air-conditioning temperature within a suitable range. Low temperature not only easily causes physical discomfort, but also increases energy consumption.

 

To choose proper operation mode: Parking air conditioners are with eco mode, sleep mode and strong mode. Clients can choose the appropriate mode according to their needs.

 

4. Error codes definition, faults, and solutions

 

Error code flash on internal machine:

While using the air conditioner, if the following codes display on the screen, they may indicate relevant faults of the machine. Please make the following operations:

Stop the air conditioner and make it power off. After ten minutes, power on and start it. If the code is still there , stop the machine and power it off，and then contact the repair center. (If the code disappears, you can continue to use it)

E01--Voltage is too low - Please charge the battery

E02--Evaporation box fan’s power circulation is open--Please check the fan’s plug or replace the fan

H22-- Air inlet sensor failure indicates that the mode can be changed after returning to normal

H23--Out inlet sensor failure indicates that the mode can be changed after returning to normal

E04--Pipe temperature (outlet air) sensor

E05--Compressor overheat ---After the compressor cools down，automatically resume working

E06 --Condensing fan open circuit 一 Check if the circuit from compressor to condenser fan is open circuited

E07--Condensation fan short circuit --- Check if circuit from compressor to condenser fan is short circuited.

E09--The brushless control board of the condensing fan fails--please replace the control board of the condenser fan

E10--Condensing fan failure -- Please replace the condensing fan motor

E11 The condensing fan is out of contact ---- Please check the compressor control board and the condenser fan wiring for damage

 

LED light flashing times indicates the compressor faults:

The LED light is located at the end of the compressor

Flash 1 time -- Standby

Flash 5 times -- Compressor case temperature is too high

-Lack of refrigerant or dirty condenser

Flash 6 times - Open circuit of cooling fan- Bad contact of electromagnetic fan plug

Flash 7 times - Short circuit of cooling fan--

Short circuit in the motor or short circuit in the connection line

Flash 9 times - Condenser fan controller failure

Flash 10 times - Condenser fan failure

Flash 11 times - Condenser fan lost contact

Note: If the according flashings of the compressor doesn’t exist in the table above, please replace the compressor control panel

 

Other Faults

In any of the following situations in using of the air conditioner, please find out a solution by following the index; if it is a fault, please contact the repair center.

 

Phenomenon	Solution
The refrigeration effect is not good	Select the right mode and set proper temperature and speed
	Check if there is any obstruction at the air inlet and outlet
	Check if the surface of the condenser is too dirty
	Check if it is short of refrigerant, and if he high and low voltage is within the normal range
There is water on the surface of indoor unit	When running in an environment with high humidity, water drops will form at the air outlet and core surface, which is a normal physical phenomenon
The indoor unit displays voltage fault	Check if it is battery low and if the power source is DC24V
	Check if the low voltage protection value is too high
The indoor unit displays sensor fault	Check if the sensor at air inlet/outlet is plugged in correctly
	Check if the display temperature is higher than normal ambient temperature. If it is, change the sensor
The indoor unit displays fan fault	Check if the fan is correctly plugged in. Connect the fan with a separate 24V DC power source. If the fan won’t work, change it
The indoor unit displays outdoor unit fault	Check if it is short of refrigerant
	Check if the high and low voltage is within the normal range
	Check if the condenser is too dirty that heat dissipation is adversely affected.

 

5. Installation Instructions

 

Step 1: Remove the original skylight

Step 2: Fix the water proof sponge along the skylight

Step 3: Fix the parking air conditioning main body on the skylight

Step 4: Install the decorative cove of air conditioner and fix with screw

Step 5: Connect power cable to vehicle battery directly. Pay attention to batter’s positive and negative

Step 6: Start the paring air conditioner with remote control

 

Notes and fault analysis for installation

The red positive electrode (≥10mm2) shall be connected to the positive electrode of the battery (the end with fuse shall be connected to the positive electrode of the battery), and the negative electrode shall be connected to the negative electrode of the battery.

The sponge around the sunroof shall be flat without wrinkles to avoid water leakage after installation of the air conditioner.

 

Fault analysis for refrigeration failure or bad effect

A. The power cord is too long and thin, with bad connection

B. No or short of refrigerant

C. In energy-saving mode

D. The fan of compressor or condenser doesn’t work

E. The evaporator or condenser is too dirty or blocked

 

Turn on the air conditioner and check if the high and low pressure is within the normal range {high pressure: 1.2-1.4, low pressure: 0.2-0.25). Select a mode and see if the air conditioner can work normally under all modes. After the air conditioner can run normally, turn it off

 

 

Attention: Refrigerant oil is filled in the rooftop/split air conditioner before delivery. After first time installation, do not fill more refrigerant. In case of any refrigerant leakage in using the parking air conditioner, add 80ml refrigerant oil POE68 again. The refrigerant oil must be of high quality.

 

 

6. How to maintain parking air conditioner?

 

Before cleaning it, make sure the air conditioner is turned off, powered off and unplugged.

 

* To clean indoor unit evaporator surface:

Wash the cleaning cloth in clean water, dry it and wipe the surface of the unit. The cloth can be dipped in the water solution of neutral cleaner.

 

* To clean the core of evaporation tank:

Remove the indoor unit case and blow off the dust on the surface with compressed air.

 

* To clean outdoor unit:

Remove the unit case and clean the condenser with compressed air. Avoid any bump against the condenser.

If you don’t use the parking air conditioner for a long time, unplug the air conditioner and wrap the outdoor unit and avoid any bump

 

* To use the parking air conditioner after long-time storage:

Clean the unit body, condenser, and evaporation unit; check if there is foreign matter at the air inlet/outlet of the indoor and outdoor unit; check if the drain pipe is clear; put batteries in the remote control; make inspection and power it on.

 

Tips:

Clean the air conditioner once every month. If there is too much dust in the working environment, increase the cleaning frequency accordingly. Please make regular cleaning to make sure it can run normally.

 

7. RFQ

 

● How many hours will the parking air conditioner work?

For scroll compressor type, sleep mode power consumption is 600W, strong mode power consumption is 800-1000W. For rotor compressor, sleep mode power consumption is 400W, strong mode power consumption is 700-800W. For example, 24V 400Ah battery, scroll compressor parking air conditioner will last 10-12 hours, and rotor compressor parking air conditioner will last 14-16 hours.

 

● Do I need to buy other parts after I receive the parking air conditioner?

It’s a whole package with all parts needed. For rooftop parking air conditioners, Freon is prefilled, so all you need to do is install and connect it to battery. For split air conditioners without Freon, all you need to do is ask a mechanic to install and fill Freon at suggested amount.

 

● Can I become your agent on certain market?

For exclusive agents on certain market, we have minimum order requirement for all year and down payment for the whole year orders. If order quantity is over certain quantity, we will customize your own model. Please contact our salesmen for more details.

 

● What color do you have for parking air conditioners?

Normally we only make red and white covers for parking air conditioners. If you need other colors, we have minimum order quantity for it.

 

● Can I test the samples before placing big orders?

Sure. Clients can several samples to test and compare first. We attend exhibitions all over the world and you can contact our salesmen to check if we plan to attend the exhibition in your country recently. It’s better to talk the products face to face.