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TEN Automotive Equipment Limited                                                     

             

 

24

       

                          Version 3.4 

  Sept 2014 

33 

   

 

 

Press down STOP key and hold for 3 
seconds to return to System Standby. 

    Start Vehicle A/C system; check the 

high and low pressure gauges to see 
if the readings are normal.   

Close “quick coupler” valves and 
recover refrigerant from hoses. 
Disconnect high and low quick 
couplers. 

IMPORTANT

: Do not exit the 

program or press stop during hose 
refrigerant recovery procedure. 

 

 

 

 

 

 

WEIGHT xx.xx kg

 

Important Notes: 

1.

 

Every function in Automatic Mode has safety pressure detection. Such as: Recycling, 
Nitrogen Test, Vacuum and Recharge. 

2.

 

If the Operator selects Recharging and Oil Injection, the Operator must also choose the 
Vacuum function simultaneously, otherwise, Oil Injection will not complete. Likewise, 
when carrying out Vacuuming the Operator should select the Recover function 
simultaneously, to ensure the system pressure is not higher than 50kpa; otherwise 
damage may occur to the vacuum pump. 

3.

 

If the Operator selects LP keeping function then the Vacuum function must also be 
selected. We recommend a minimum of 40 minutes Vacuuming if checking for Vacuum 
decay (LP Keeping) 

4.

 

If there is pressure in the vehicle A/C system and the Operator selects the Vacuum 
function together with any other functions, we recommend that the Recovery function is 
ALWAYS selected as well as this will prevent damage to the vacuum pump.

 

5.

 

In Automatic Mode every single function can be linked together according to servicing 
and repair requirements of vehicle A/C system.

 

6.

 

When changing between different Injected Oil types ensure the system has fully 
recovered from the hoses and that there is no residual oil in the Injected Oil bowl feed 
pipe. 

This may cause damage to some A/C Systems especially if they are electrically 

powered.

 

7.

 

Note: The amount of Oil injected automatically is approximated to take into 
account the losses due to the length of the Red/Blue connection hoses.

 

8.

 

Always check the gauges for normal operating pressure when first connecting to the 
vehicle A/C system. LP Keeping and the Nitrogen Test are not usually required if the low 
and high gauges show normal operating pressure with the vehicle A/C system running.

 

Summary of Contents for N2 PRO

Page 1: ...Version 3 4 Sept 2014 N2 PRO N2 PRO 1234 REFRIGERANT RECOVERY RECHARGING SYSTEM OPERATORS MANUAL TEN Automotive Equipment Limited www ten automotive co uk ...

Page 2: ... of Refrigerants and improper use of the Equipment Accessories may cause serious injury or harm to the Operator Damage to the Equipment and Vehicle A C System may also occur The Model N2 PRO should be used only with R134A Vehicle A C Refrigerant Systems The Model N2 PRO 1234 should be used only with R1234YF Vehicle A C Refrigerant systems Recycled Refrigerant R134A R1234YF meets the required SAE s...

Page 3: ... 8 OPERATION 11 8 1 Recover refrigerant and oil drain 11 8 2 Vacuum A C system and inject new oil 13 8 3 Recharge A C system 14 8 4 Hose recovery and system self cleaning 16 8 5 Adding refrigerant to work tank 17 8 6 Fully automatic operation 18 9 ROUTINE MAINTENANCE 25 9 1 Checking the capacity of the filter drier 25 9 2 Changing the filter drier 26 9 3 Checking the vacuum pump oil usage 28 9 4 R...

Page 4: ... one it has been designed for i e R134A or R1234YF Before each new vehicle connection ensure that the LP HP hoses have been previously evacuated and that zero pressure is shown on both gauges Avoid breathing refrigerant vapours Only operate the unit in well ventilated areas do not use while working in a vehicle inspection pit Do not operate near open flames and hot surfaces High temperatures cause...

Page 5: ...d or Act of God 2 Consumable items such as Printer Rolls Cables External Hoses and Quick Coupler Connectors Oil Drain Bowls and Drier Filters are replaced 3 Attempted repairs or adjustments by any person or Company not authorized or recognized by TEN Automotive Equipment Limited 4 If the authorized representative of TEN Automotive Equipment Limited has been refused or is unable to access the equip...

Page 6: ...e internal Work Tank ELECTRONIC SCALES Measures the weight of the Work Tank refrigerant WORK TANK Refillable refrigerant internal storage tank inside the system It is used to store refrigerant during recovery and to recycle recovered refrigerant to SAE standard The tank has three outlets gas outlet liquid outlet and air discharge outlet 6 CONTROL PANEL Note Some models have the Printer mounted on ...

Page 7: ...ING INSTRUCTION SCREEN DISPLAY 1 Turn the power switch on Ensure Vacuum pump oil level is sufficient Oil should be at the indicated level of sight glass on Vacuum Pump CLEAR 2 Press START key to begin the initialization process The screen will flash PLEASE WAIT PLEASE WAIT 3 If used for the first time the system will automatically remove Nitrogen in the Work Tank and internal system This will take...

Page 8: ...ding refrigerant to Work Tank the displayed amount will increase Note Turn source tank upside down to increase flow if required RECOVER xx xx kg 8 Suggested weight of refrigerant adding to Work Tank for the first time is 3 to 4 kg IMPORTANT When the displayed weight is approximately 3 to 4 kg close source tank valve and blue quick coupler valve DO NOT PRESS STOP BUTTON When pressure decreases to 0...

Page 9: ...ler 3 Connect quick coupler to its holding port on side of unit WEIGHT xx xx kg 12 Initial set up is now complete IMPORTANT For the normal operation of the system the weight of the refrigerant in the Work Tank should not be less than 2 5kg Back to Index 7 2 Printer set up and operation optional STEP OPERATE OPERATING DESCRIPTION DISPLAY CONTENT 1 Turn the power switch on Now the system enters into...

Page 10: ...T xx xx kg 6 Input Company Telephone No At System Standby Key input code 6302 Tel 7 Enter Company Telephone number use to delete 01553 764900 8 After input press START to confirm Company Telephone number will be stored WEIGHT xx xx kg 9 OPERATION Press PRINT The screen will alternately show Technician and name of the previous Technician if applicable 1 If you wish to use the Technician name alread...

Page 11: ...ase go to step 13 2 If you want to print vehicle registration number please carry out next step Note this number will not be saved Vehicle Reg 12 Input Vechicle Registration number if required Use and to change between upper and lower case Use to delete character 13 After input press START to print Note If you wish to print a duplicate report press PRINT again PRINT OK 14 IMPORTANT If you press ST...

Page 12: ...le A C system and open coupler valves WEIGHT xx xx kg 3 IMPORTANT Check gauges for vehicle A C operating pressure If zero pressure is displayed then check the vehicle A C system for leaks first Note The VACUUM HOLD test is a visual check using the Gauges to look for vacuum decay It is recommended that the Nitrogen Pressure Test is used for leak detection WEIGHT xx xx kg 4 Press RECOVER key to ente...

Page 13: ...t of oil drained this time should be noted You will be prompted to add A C system oil after vacuuming is complete Add the required amount specified by the vehicle manufacturer DRAIN OIL 8 Press the STOP key to go back to System Standby WEIGHT xx xx kg IMPORTANT The recommended filter drier capacity of this system is 68kg when recovered refrigerant weight reaches this point the display will read No...

Page 14: ...rm system pressure It is recommended that the operator repeats the recovery process After the recovery process has automatically completed the pressure should be zero and the vacuuming process can then be carried out normally PRESSURE IN HOSE VACUUM 15 00 3 Press Number keys to set Vacuum time Press the START key to begin the vacuuming process VACUUM xx xx 4 Vacuum process and LP Keeping if select...

Page 15: ...laced at the recommended time the vacuum pump may incur damaged 2 If A C system pressure is higher than 50kpa 0 5kg do not vacuum vehicle A C system otherwise the vacuum pump may incur damaged Back to Index 8 3 Recharging A C systems STEP OPERATION OPERATING INSTRUCTION SCREEN DISPLAY 1 1 Press CHARGE key to enter into refrigerant recharging procedure 2 Use value keys to set the weight of the refr...

Page 16: ...onfirm LP HP CHARGE 5 Press START to begin the refrigerant recharging procedure CHARGE 00 00kg 6 When refrigerant recharging reaches the set value weight the System will stop automatically and indicates the charge amount result at the same time CHARGE xx xx kg CHARGE COMPLETE 7 Press the STOP key for 3 seconds to end the recharging process and return to System Standby Start the Vehicle A C system ...

Page 17: ...re not connected to vehicle 2 Ensure that the high and low quick coupler valves are closed WEIGHT xx xx kg 2 Press the RECOVER key to enter into recovery procedure xx xx kg is reading of headroom left in Work Tank RECOVER xx xx kg 3 Press the START to begin hose recovery or self cleaning Check pressure gauge When the pressure is lower than 0kpa system will automatically complete the process RECOVE...

Page 18: ...de down to increase flow if required WEIGHT xx xx kg 3 Press RECOVER key to enter into refrigerant adding procedure xx xx kg is the amount of refrigerant headroom the Work Tank can contain RECOVER xx xx kg 4 1 Press START to begin the refrigerant top up process Suggested weight of refrigerant stored in Work Tank is 3 to 4 kg IMPORTANT When the displayed weight is approx 3 to 4 kg close the source ...

Page 19: ... WEIGHT xx xx kg Back to Index 8 6 Fully Automatic Operation STEP OPERATION OPERATING DESCRITION SCREEN DISPLAY 1 Turn the power switch on Now the system enters into system self checking state and software version is displayed VERSION x xx 2 After 3 seconds the system will display amount of refrigerant in Work Tank Connect Red and Blue quick couplers to high and low pressure ports of the vehicle A...

Page 20: ...Press number key 2 again nitrogen pressure test will be cancelled R N2 R 6 Press number key 3 Vacuum function will be chosen Press number key 3 again vacuum function will be cancelled R N2 V R N2 7 Press number key 4 vacuum hold time will be chosen Press number key 4 again vacuum hold will be cancelled NOTE This is a Pressure Gauge Check only R N2 V VH R N2 V 8 Press number key 5 Oil Injection wil...

Page 21: ... FUNCTION 12 To enter into vacuum time set and press number keys to set vacuum time value Then press START VACUUM 30 00 13 To enter the amount of oil to recharge set charging weight by number keys NOTE Set the amount to 00ML if you wish to enter the amount of oil equal to the amount of drained oil prior to INJECT OIL OIL 10ML 14 To enter the amount of refrigerant to recharge set charging weight by...

Page 22: ...ting pressure then press START If zero pressure is displayed then press STOP for 3 seconds to exit the automatic program sequence Check the vehicle A C system for leaks first RECOVER xx xx kg 19 Press START System will recycle rest refrigerant from vehicle A C system automatically When the recycling pressure is lower than 0 kpa System will stop recycling automatically and enter into next programme...

Page 23: ...ly completed 1 Within set time System will check the leakage for vehicle A C system Press STOP to pause the countdown and enter into manual leakage checking procedure 2 Press START to continue checking leakage automatically N2 LK TEST 15 00 23 Note 1 Press STOP to pause the countdown to manually check for leaks 2 Press START to continue leakage checking countdown N2 LK TEST 15 00 24 Important Note...

Page 24: ...etting Vacuum time is preset by the operator VACUUM xx xx 28 System will enter into vacuum hold procedure according to program setting automatically vacuum hold time is set time Note This is a Pressure Gauge Check only VAC HOLD 3 00 29 System will automatically enter into Oil Injection procedure INJECT OIL 30 System will inject oil approximately to the pre set amount NOTE If the initial amount was...

Page 25: ...ion then the Vacuum function must also be selected We recommend a minimum of 40 minutes Vacuuming if checking for Vacuum decay LP Keeping 4 If there is pressure in the vehicle A C system and the Operator selects the Vacuum function together with any other functions we recommend that the Recovery function is ALWAYS selected as well as this will prevent damage to the vacuum pump 5 In Automatic Mode ...

Page 26: ...nizing procedure 2 xx xx kg represents the weight of the refrigerant the filter drier has filtered Please note after 68Kg the filter drier becomes less effective and requires replacement FILTER xx xx kg 2 Filter drier requires replacement CHANGE FILTER 3 Press STOP to enter into System Standby WEIGHT xx xx kg Note It is possible to temporarily override the CHANGE FILTER error message by pressing S...

Page 27: ... 4 4 System self cleaning wait until it is complete 2 Switch the unit off and isolate mains 3 Most Models of N2Pro have a Filter Drier access panel on the side of the unit Remove access panel to change Filter drier NOTE Please follow procedure below for Models of N2Pro which do not have the access panel fitted 1 2 3 ...

Page 28: ...maintenance option menu 2 xx xx kg represents the original value of the filter drier FILTER xx xx kg 7 1 Press up key to proceed to CHANGE FILTER 2 Enter the 4 digit reset code Press START key CHANGE FILTER 8 Press STOP to enter into System Start Now new filter drier value is reset to zero WEIGHT xx xx kg Back to Index 9 3 Checking the vacuum pump oil usage ...

Page 29: ...ILTER xx xx kg 2 Press up key until till the screen displays xxx MIN represents the accumulated vacuum pump working time Please note that it is the Manufacturer s recommendation that the Vacuum Pump Oil is changed after 1000 minutes use OIL xxx MIN 3 Change Vacuum Pump Oil Step 5 4 using the correct oil CHANGE OIL 4 Press STOP key to go back to System Start WEIGHT xx xx kg Back to Index ...

Page 30: ...g vacuum pump oil STEP OPERATING DESCRITION 1 Carry out 4 2 Vacuum A C system Vacuum time should be set to 2 minutes wait until it countdown is complete 2 Switch off the unit and change vacuum pump oil as follows 1 2 Note Some Vacuum Pumps have a combined Air Oil Inlet 3 ...

Page 31: ...TEN Automotive Equipment Limited 30 Version 3 4 Sept 2014 4 5 6 7 ...

Page 32: ...TART CHANGE OIL 11 1 Press STOP key to enter into System Start 2 Now vacuum pump usage counter is reset WEIGHT xx xx kg Note It is possible to temporarily override the CHANGE OIL error message by pressing START then 4 then START again VACUUM PUMP OIL This special type of pump oil is strongly recommended since it is specially mixed to ensure viscosity of the oil stays at the maximum at the normal o...

Page 33: ...TIONS Back to Index Models Recover rate Vacuum speed Charge rate Electronic balance sensitivity Work tank capacity Capacity of filter drier refrigerant Connection port type N2 PRO N2 PRO 1234 5 0g S 2 0L S 26g S 10g 10kg 68kg R134A Model N2 PRO R 1234YF Model N2 PRO 1234 ...

Page 34: ...T NO NAME AC 1906 POWER SWITCH Rotary AC 1909 POWER CORD 5m AC 1912 DRAIN OIL BOWL AC 1913 INJECT OIL BOWL AC 1921 HIGH PRESSURE HOSE RED Long 500cm AC 1922 LOW PRESSURE HOSE BLUE Long 500cm AC 1923 Y N2 CONNECTION HOSE YELLOW Long 500cm AC 1924 HIGH PRESSURE QUICK COUPLER RED AC 1925 LOW PRESSURE QUICK COUPLER BLUE AC 12346 HIGH PRESSURE HOSE RED Long 500cm AC 12347 LOW PRESSURE HOSE BLUE Long 50...

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