AC-200A A/C System Maintenance Centre
AC-200A
A/C System Maintenance
Centre
AC-200A A/C System Maintenance Centre
Safety
The machine is designed to be used and repaired by qualified personnel only.
The machine designed for use in recovering the R134a refrigerant fluid used in the air-conditioning
(A/C) systems of motor vehicles. Fill the A/C system with the quantity of refrigerant recommended
by the manufacturer.
Check the vehicle use and maintenance manual for the type of refrigerant fluid used by the A/C
system. Do not mix different type of refrigerant otherwise can easily lead to malfunction of the
machine.
Keep away from moving parts and rotating elements such as cooling fans, alternators and heating
components, etc to avoid harm.
Wear protective clothing gloves and goggles.
As automotive air conditioning pipe flushing, the operator must be fully familiar with automotive air
conditioning system and operation of the machine. Check whenever the engine is turned off that
the ignition key is turned to the full OFF position!
Do not expose the machine to direct sunlight or rain. Use only in well-ventilated work areas.
Never exceed 30 ° tilt in transit process upside down is strictly prohibited.
Do not touch the machine high voltage power supply section, and do not maintain the machine as
power on.
Care of the manual.
AC-200A A/C System Maintenance Centre
TABLE OF CONTENTS
1. Introduction ................................................................................................................................................. 1
1) Outline ........................................................................................................................................................ 1
2) Features ....................................................................................................................................................... 1
3) Specifications .............................................................................................................................................. 1
2. Functions ..................................................................................................................................................... 2
1) Primary functions ........................................................................................................................................ 2
2) Subsidiary functions.................................................................................................................................... 2
3. Operation ..................................................................................................................................................... 3
1) Parts descriptions ........................................................................................................................................ 3
2) First use ....................................................................................................................................................... 4
3) Recovery/Recycling .................................................................................................................................... 4
4) Preparations before Flushing ...................................................................................................................... 5
5) Flushing & Recovery .................................................................................................................................. 5
6) Vacuum ....................................................................................................................................................... 6
7) New oil adding ............................................................................................................................................ 6
8) Recharging .................................................................................................................................................. 6
9) Refrigerant supply for the cleaning tank (internal tank) ............................................................................. 7
10) Usage of the Auxiliary Port ....................................................................................................................... 8
11) Maintenance .............................................................................................................................................. 8
12) Parameter setting and inquiring .............................................................................................................. 10
APPENDIX: ALARM CODE TABLE ......................................................................................................... 12
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1. Introduction
1) Outline
AMC series A/C system maintenance equipment is with the latest design technique which uses
the best control principle and the manufacturing process.
AMC-200A A/C System Maintenance Centre is intelligent equipment collecting of the A/C
flushing, recovery, recycling, recharging and other functions in one. It’s with the beautiful shape,
humanized operation interface, and advanced manufacturing processes to make the A/C
maintenance professional and simple.
2) Features
A. Internal pipeline of A/C system flushing, effectively cleared the internal greasy and fouling,
to restore the A/C system performance.
B. With forward flushing, reverse flushing, and pulse flushing functions, which greatly improve
the cleaning effect.
C. Using large-size glass tube with LED backlighting, can effectively observe the entire
cleaning process.
D. Vertically installing the HP & LP gauges let the operator be able to observe the pressure
parameters timely even in the car.
E. Unique design of the pipeline to achieve the high recycling rate no matter with the gas or
the liquid.
F. Easy to operate with the concise operating interface.
3) Specifications
A. Voltage input: AC220V±10％~50/60Hz
B. Compressor：12.12cm
3
C. Vacuum pump: 7.2m
3
/h，10Pa
D. Load cells: ±10g
E. Tank: 12L
F. Oil bottle: 250ml,double
G. Working pressure: max. 20bar
H. HP gauge: -1bar~3.5MPa
I. LP gauge: -1bar~1.5MPa
J. Backlighting：LED
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2. Functions
1) Primary functions
A. Flushing
B. Recovery/Recycling
C. Used oil discharging
D. Vacuum
E. New oil filling
F. Recharging
2) Subsidiary functions
A. Refrigerant supplying
B. Load cell calibration
C. Recharging tank exchanging procedure
D. Maintenance procedure for dry filter
E. Alarms
F. Parameters setting
G. Parameters inquiring
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3. Operation
1) Parts descriptions
HP gauge
HP Port
Tubes hang fittings
Operation panel
LP gauge
Window
Alarm light
Cooling fan
Switch for new oil adding
New oil bottle
Parameter decrease key
Parameter increase key
Enter key
Flushing key
Min indicator
Kg indicator
LED displayer
Recovery key
Filling key
Start key
Switch for used oil discharge
Used oil bottle
Oil window &
extraction tap of
Vacuum Pump
LP Port
Stop key
Auxiliary Port
Air Purge
Recharging
Tank
Update
Port
Recharging Tank indicator
Vacuum key
Keys description
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2) First use
A、 Unscrew the electronic scale support screw before using the equipment.
B、 Please supply about 4 kg refrigerants into the tank of equipment so that all of the functions
can be run normally.
C、 Fix the refrigerant tank (Recharging tank) on the load cell.
1
st
Connect the hose port with needle to the Recharging Tank port of the machine and connect
another port of the hose to the refrigerant tank.
2
nd
Open the valve of the refrigerant tank and place it upside down on the load cell pan.
3rd Fix it with the accessories.
Note: If you need not using the auxiliary load cell, please fix it as the manufactory.
Warning: Non-pedal the auxiliary load cell!
D、 Please read this user manual carefully before operating.
3) Recovery/Recycling
A、 Pres key to select the Recovery/Recycling function:
B、 The LED displays the weight of refrigerant in the cleaning tank (internal tank).
C、 Presses “START” key to run.
D
、
It will stop running and discharge the used oil automatically when the recovery/recycling
process finish.
From the back.
Unscrew the
support screw.
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Note: also be able to discharge the used oil by press the switch.
E、 During the running process, if it displays a code as F00-, please refer to the APPENDIX:
ALARM CODE TABLE.
4) Preparations before Flushing
A、 To check if there has enough refrigerant in the tank. The volume should be 4~6 kg.
B、 Empty the used oil bottle.
C、 Check the automotive A/C system. If there has any leakage, it must be repaired firstly to
avoid refrigerant leak during flushing process.
D、 Check if the automotive air-conditioning can run normally.
5) Flushing & Recovery
A、 Before flushing the pipeline of automotive A/C system, please turn on A/C system and run
it for 5 to 10 minutes. And set it as the lowest temperature and medium wind.
B、 Turn off the automotive air conditioning.
Warning: do not start the air conditioning during the flushing process! Otherwise, it
easily causes damages to the air-conditioning and risk of accident!
C、 Press key to select the “Recovery/Flushing” function.
D、 The LED displays the flushing time.
E、 Set the flushing time by pressing “+” or “-” key and press “ENTER” key to conform it. In
order to achieve good flushing performance, the flushing time should be more than 30
minutes. Normally, the good flushing time is about 45 minutes for car.
Note: The flushing time does not include the time of recovery process. Once the
flushing is finished, the machine will run the recovery function automatically.
F、 Press “START” key to run the function.
G、 Then the forward flushing, reverse flushing and pulse flushing will be run.
H、 If it displays code as F00- during the process, please refer to the APPENDIX: ALARM
CODE TABLE.
I、 After flushing process finished, the recovery process run automatically.
J、 When the whole process finished, it drain the used roil automatically.
Notice: it’s normal for that there have action sound of the solenoid valve during the
working process. Please do not stop it.
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6) Vacuum
A、 Press key to select the vacuum function.
B、 The LED displays the vacuum time.
C、 Set the vacuum time by pressing "+" or "-" and press the "ENTER" key to confirm it. It
should be more than 15 minutes. Generally, it needs 15 minutes at least for the air
conditioning only with front wind and 20 minutes for with the front and rear wind.
D、 Press “START” key to run it.
E、 When the time is finished, it will stop automatically.
F、 If it displays code as F00- during the process, please refer to the APPENDIX: ALARM
CODE TABLE.
7) New oil adding
A、 Pour new oil into the new oil bottle.
Note: add new oil more 20ml than the used oil drained out to avoid the air into the
air conditioning system.
B、 After vacuum, press the switch of the new oil bottle to control the new oil filling.
Warning: please do not press the switch of the new oil bottle anytime when the
automotive air conditioning system in non-vacuum state, otherwise it have the risk
of explosive bottles!
8) Recharging
Note:
i. Here you can choice the cleaning tank (internal tank) or recharging tank (external
tank) to recharging the refrigerant into the A/C system.
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ii. When the led as is on, it means that recharge the refrigerant from the
recharging tank (external tank). Otherwise, from the cleaning tank (internal tank).
iii. It’s by cleaning tank (internal tank) to recharge as default. After fixed the recharging
tank (external tank), you can set to recharge refrigerant from the recharging tank
(external tank). The setting ways is referring to the PARAMETER SETTING.
iv. When the refrigerant in the recharging tank (external tank) is not enough, please
exchange one tank of refrigerant. The exchanging ways is referring to the
RECHARGING TANK EXCHANGING.
Operations;
A、 Press the key to select recharging function.
B、 The led displays the amount of recharging.
C、 Set filling amount by press “+” or “-” key, and then press “ENTER” key.
Note: set the filling amount according to automotive user manual. The unit is kg.
D、 Presses “START” key to run.
E、 Stop automatically after recharging finished.
Note: In the filling process, if LED displays alternately the remaining amount of
filling and the letters "AC", it means that you need to turn off the HP coupler and
turn on the car air-conditioning to complete the filling process. Later, you should
supply new refrigerant into the tank.
9) Refrigerant supply for the cleaning tank (internal tank)
A、 Connect the port of fresh refrigerant tank to the HP port of equipment. Block the LP port of
equipment with a cap or LP coupler.
Note: it should connect to the liquid port of fresh refrigerant tank. If has no liquid
port, please invert the fresh refrigerant tank.
B、 Press and hold the "-" key and power on the equipment at same time. The “Recovery” and
“Kg“indicators will light on, which means refrigerant supply function is on.
C、 Set supply amount by press “+” or “-” key, and then press “ENTER” key.
D、 Presses “START” key to run.
E、 When the LCD display “CLO”, please close the valve of the fresh refrigerant tank.
F、 Stop automatically after supply finished.
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10) Usage of the Auxiliary Port
A、 Leak checking by N2
i. Remove the cap of auxiliary port after the equipment stop working entirely.
ii. Connect the N
2
to the auxiliary port.
Note: the connector to the auxiliary port must be with thimble. Do not open the valve
of N
2
during this process.
iii. Adjust the N
2
pressure to a suitable value and open the valve of N
2
. When the pressure is
stable, please close the valve of N
2
. Normally, the pressure is adjusted to about 12~15bar.
iv. Check if there has any leakage in the A/C system. After checking, please press the needle in
the auxiliary port to relive the N
2
.
v. After finished, re-back the cap to the auxiliary port.
B、 Recharging from cans
i. Before vacuum, connect the pipe with the external tank to the auxiliary port.
Note: the connector to the auxiliary port must be with thimble. Do not open the valve
of external tank
during this process.
ii. Run vacuum function.
iii. Open the valve of external tank to recharge the right amount refrigerant into A/C system.
And then close the valve of external tank.
iv. After finished, disconnect the pipes and re-back the cap to the auxiliary port.
11) Maintenance
A、 Calibration of load cell
When the load cell is not precise, it needs to be calibrated.
Calibrating procedure as below:
i. Prepare a 15 kg weight. And remove the refrigerant tank from scale pan and keep the
pan empty.
Note: do not disconnect the red and blue hose from the refrigerant tank. It’s better
put the refrigerant tank on a lower stage.
ii. Press and hold “STOP” key then power on the equipment. Press”+”or ”-” to select the
load cell of cleaning tank (internal tank, SEN1) or of the recharging tank (external tank,
SEN2). Press “ENTER” key to the calibration process.
iii. The LED displays “1” in flushing.
iv. Press "ENTER" key to do the empty plan calibration. Then the LED will display “2” in
flushing. Note: If LED shows “ERR1”，please refer to the APPENDIX: ALARM CODE
TABLE.
v. Put the 15 kg weight onto the scale pan and press “ENTER” key. Then LED displays the
weight value and adjusts the value to 15 by press “+” or “-”key.
Note: if the weight is 20kg, the value must be set to 20.
vi. Press “ENTER” key to do the scale linear calibration. Then the LED displays “END” to
mean it’s successful for the calibration.
Note: if LED shows “ERR2”, please refer to the APPENDIX: ALARM CODE TABLE.
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vii. Then power off and replace and fasten the refrigerant tank onto the scale pan.
B、 Exchange dry filter
The dry filter must be exchange after used a period. The machine has set the exchange time.
When the dry filter reaches the life time, the LED will show code “F004”. Now the dry filter must
be exchanged.
i. Press and hold (VACUUM) key and power on the equipment.
ii. Press “START” key to do the first step automatically.
iii. Replace the used dry filter with a new one then press “ENTER” key.
iv. Input the dry filter ID. Please refer to the chapter PARAMETER SETTING.
v. Power off and dry filter exchange procedure finish.
C、 Change vacuum pump oil
i. When the pump oil became cream or the LED displays “F008”, the vacuum pump oil
must be changed.
ii. Step 1: unscrew the block of the drain port to drain entirely out the old oil. Then re-back
the block to the drain port.
iii. Step 2: unscrew the cap of the fill port and then fill the new oil slowly into the vacuum
pump until the oil level reach at the center site. Then re-back the cap to the fill port.
Note: the new vacuum pump oil cannot be filled too much into the vacuum pump
otherwise it will spray out when working.
D、 Recharging tank exchange
When there is no enough refrigerants in the recharging tank, it needs to change a
new tank of refrigerant in time so that the recharging function can be run.
i. Press and hold the (flushing) key to power on.
ii. The LED displays the remained amount in the recharging tank.
iii. Press the “ENTER” key.
iv. When the LED displays the “CH”, please change a new tank of refrigerant and fix it
Window
Drain port
Fill port
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well.
v. Power off and exchange ok.
12) Parameter setting and inquiring
A、 Parameter setting
i. Here can set the cleaning tank or recharging tank as the default recharge tank.
ii. Press and hold the "START" key and power on the equipment to enter the mode.
The LED displays the parameter code and you can change the code by press "+” or
“-" key.
iii. The LED displays “P3”.
iv. Press “ENTER” into setting mode. Press “+”or”-” to select the setting value.
g: Set the unit is KG/G as default.
lb: Set the unit is LB as default.
v. Press “ENTER” to save.
vi. The LED displays “P4”.
vii. Press “ENTER” into setting mode. Press “+”or”-” to select the setting value.
C-1: Set the cleaning tank (internal tank) as default. This is also default of nufactory.
C-2: Set the recharging tank (external tank) as default.
viii. Press “ENTER” to save.
ix. Power off.
B、 Parameter inquiring
i. Press and hold (Recharging) key to enter parameter inquiring mode.
ii. In this mode five parameters can be inquired.
The LED displays the parameter code and you can change the code by press "+” or “-"
key.
iii. Code “C”: total worked time of the compressor
When LED displays code "C", please press "OK" key to show the total worked time.
iv. Code “P”: total worked time of the vacuum pump
When LED displays code "P", please press "OK" key to show the total worked time.
v. Code “F”: volume of refrigerant dealt with by dry filter.
When LED displays code "P", please press "OK" key to show the total worked time.
Reset this code by press together “Fill” and “Stop” keys and the ways of dry-filter ID is as
follows:
Dry filter ID is with 4 digits, and you need to set one by one.
When one digit is in flash, it means you can set it by press "+” or “-" key, and press “OK”
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key to confirm it.
Set a same value according to the ID pasted on the dry-filter.
Only you set the correct 4 digits, the equipment can accept it
Note: The code used already will be not able to be accepted again.
vi. Code “CON”: total times of the equipment being operated.
vii. Code “SN”: the equipment serial number
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APPENDIX: ALARM CODE TABLE
Code
Descriptions
Emergency Method
F001
No enough refrigerant in cleaning
tank
Supply refrigerant in time.
F002
Too much refrigerant in tank
Transfer some refrigerant to another tank.
F003
High pressure
Stop use for a period.
F004
No refrigerant to recovery
Run next function.
F005
Cannot vacuum
Recovery first and then run vacuum.
F006
Exchange dry-filter
The dry-filter is life-end.
F007
Vacuum pump maintenance
Change the pump oil in time.
F009
No enough refrigerant in recharging
tank
Change a new tank of refrigerant.
F010
Prohibit changing the recharging
tank
Here has enough refrigerant in the tank.
ERR1
Load cell calibration error at step 1
Check if the scale pan empty.
Check the connection of signal cable being ok.
Check if the load cell is damaged.
ERR2
Load cell calibration error at step 2
Check if the weight has been put onto the
scale pan.
Check the connection of signal cable being ok.
Check if the load cell is damaged.
/