Robinair 178012K User Manual

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Operating Manual, Model 178002K/178012K

Recovery/Recycling/Recharging Unit

For Multiple Refrigerants............................................. 1

SPN–Manual Operativo Modelo 178002K/178012K

Unidad de Recuperación/Reciclado/Recarga para

Refrigerantes Múltiples ............................................... 44

FRN–Manuel de Fonctionnement Modèle 178002K/ 178012K

Unité de Récupération/Recyclage/Recharge pour

Réfrigérants Multiples ................................................. 88

DEU–Bedienungs-anleitungen178002K/178012K

Station für das Rückgewinnen/Recyclen/Füllen von

Kältemittel ................................................................... 132

ITAL–Manuale Operativo Modello 178002K/178012K

Unità di Recupero/Riciclo/Ricarica per Refrigeranti

Multipli ......................................................................... 176

LISTED

80S2

Design Certified by Underwriters Laboratories Inc.,® for Compliance with SAE J1770.

Refrigerant Recovery,

Recycling, Recharging Unit

Model: 178002K/178012K

Refrigerants: R-12, R-134a, R-22, R-500 and R-502

WARNING

PRESSURIZED TANK CONTAINS LIQUID REFRIGERANT. OVERFILLING OF THE TANK MAY CAUSE VIOLENT EXPLOSION AND POSSIBLE INJURY OR DEATH. Safety devices require the use of only authorized refillable refrigerant

tanks. This includes Robinair part numbers 17506 and 34750 (50-lb. tanks). Do not recover refrigerants into a non-refillable storage container! Federal regulations require refrigerant to be transported only in containers meeting DOT spec. 4BW or DOT spec. 4BA.

ALL HOSES MAY CONTAIN LIQUID REFRIGERANT UNDER PRESSURE. Contact with refrigerant may cause injury. Wear proper protective equipment, including safety goggles. Disconnect hoses with extreme caution.

HIGH VOLTAGE ELECTRICITY INSIDE PANELS. RISK OF ELECTRICAL SHOCK. Disconnect power before servicing unit. Refer to the instruction manual.

TO REDUCE THE RISK OF FIRE, avoid the use of an extension cord because the

extension cord may overheat. However, if you must use an extension cord, the cord shall be No. 14 AWG minimum and keep the cord as short as possible. Do not use this equipment in the vicinity of spilled or open containers of gasoline or other flammable substances.

For use in non-hazardous locations. Disconnect power before servicing. Use this equipment in locations with mechanical ventilation that provides at least four air changes per hour or locate the

equipment at least 18 inches above the floor. Make certain that all safety devices are functioning properly before operating the unit. Before operating, read and follow the

instructions and warnings in the operating manual. CAUTION: SHOULD BE OPERATED BY QUALIFIED PERSONNEL. Operator must be familiar with air conditioning and

refrigeration systems, refrigerants and the dangers of pressurized components.

This equipment is not designed for any other purpose than recovering or recycling refrigerants! Do not mix refrigerant types!

ATTENTION!

Ce réservoir sous pression contient du frigorigène liquide. S’il est surchargé, ce réservoir peut exploser et causer des blessures ou la mort.

A utiliser dons des endroits non dangereux. Débrancher la prise de courant avant l’entretien. ATTENTION. Débrancher avant la maintenance. ATTENTION. Pour réduire les risques d’incendie, ne pas utiliser de cordon prolongateur de section inférieure à 14 AWG de

facon à éviter la surchauffe du cordon. ATTENTION. Utiliser seulement du frigorigène R-12, R-134a, R-22, R-500 et R-502.

OPERATING NOTES

Drain the System Oil Separator at the end of each recovery. The display will indicate when a filter-drier and compressor oil change are required except if you are recovering from a burn-out system. Then the filter-drier and compressor oil should be changed at the completion of that job. When switching refrigerant types, the unit should always be self-cleared.

Non-condensables can be purged from the refillable tank during the recycling procedure. Get the temperature of the refrigerant you are recycling from the air purge gauge. Look at the pressure-temperature chart to find what the pressure should be at that temperature and compare it to what the air purge gauge pressure is. If the pressure on the air purge gauge exceeds the desired pressure by more than 10 psi, open the gauge for 30 seconds, then close it and re-check the pressure. Continue as needed during the recycling procedure.

R-134a WARNINGS!

Cross-contamination with other refrigerant types will cause severe damage to the A/C system and to service tools and equipment. Do not mix refrigerant types through a system or in the same container!

Avoid breathing A/C refrigerant and lubricant vapor or mist. Exposure may irritate eyes, nose and throat. To remove R-134a from the A/C system, use service equipment certified to meet the requirements of SAE J2210 (automotive R-134a recycling equipment). If accidental system discharge occurs, ventilate work area before resuming service.

HFC-134a service equipment or vehicle A/C systems should not be pressure tested or leak tested with compressed air. Some mixtures of air/HFC-134a have been shown to be combustible at elevated pressures. These mixtures are potentially dangerous and may result in fire or explosion causing injury or property damage.

Additional health and safety information may be obtained from refrigerant and lubricant manufacturers.

Introduction

This manual contains important safety procedures concerning the operation, use and maintenance of this product. Failure to follow the instructions contained in this manual may result in serious injury. If you are unable to understand any of the contents of this manual, please bring it to the attention of your supervisor. Do not operate this equipment unless you have read and understood the contents of this manual.

TABLE OF CONTENTS

Introduction ................................................................................................ 2

Glossary of Terms ............................................................................................ 2

General Operating Guidelines ........................................................................... 3

Set-Up Instructions ....................................................................................... 4

Operating Instructions ................................................................................ 10

Recovery Procedures....................................................................................... 10

Changing Refrigerant Types ............................................................................. 12

A/C System Evacuation .................................................................................. 14

Recycling Procedures ...................................................................................... 15

Charging Procedures ...................................................................................... 16

Correcting an Incomplete Transfer ..................................................................... 17

Adding Refrigerant to the Tank ......................................................................... 18

Operating Overview .................................................................................. 20

Recovery Overview ........................................................................................ 2 0

Evacuation Overview ...................................................................................... 21

Recycling Overview ........................................................................................ 21

Charging Overview ........................................................................................ 22

Maintenance Procedures ............................................................................. 23

Changing the Vacuum Pump Oil ....................................................................... 23

Changing the Filter-Drier ................................................................................. 24

Checking the Scale Accuracy ........................................................................... 26

Calibrating the Scale ...................................................................................... 26

Checking for Leaks ......................................................................................... 27

Operating Guidelines ................................................................................. 28

Using the Control Panel ................................................................................... 28

Keypad Functions ........................................................................................... 29

Using the Digital Display ................................................................................. 29

Using the Diagnostic Mode .............................................................................. 32

Using Display Codes ...................................................................................... 34

Replacement Parts...................................................................................... 36

Flow Diagram ........................................................................................... 37

Wiring Diagram ........................................................................................ 38

Troubleshooting ........................................................................................ 39

Limited Warranty....................................................................................... 42

NOTICE: Airborne Noise Emissions

This equipment has been tested for airborne noise emission per the Council Directive for Machinery (89/392/EEC Section 1.7.4 Instructions - Essential Health and Safety Requirements. Sound levels do not exceed 80dB(A) actual value.

Model 178002K/178012K Recovery/Recycling/Recharging Unit

Introduction

The 178002K/17802KA is a complete A/C-R service center. It recovers, recycles and recharges a wide range of refrigerants—from existing refrigerants to new substitutes and blends. With its multi-refrigerant capabilities, it is ideal for trucks, buses and refrigerated trailers, as well as in-plant maintenance and other accessible installations.

The built-in manifold means the entire service procedure can be done with just one hook-up. A microprocessor controls the unit’s functions; evacuation time and the amount of refrigerant to be recharged can be programmed at the beginning of the job. Prompts lead you through programming and alert you when the filter, vacuum pump oil and compressor oil need to be changed.

This unit is UL-listed and meets the SAE specifications for recycled refrigerant. It is also designed to be compatible with existing service equipment and standard service procedures.

This unit is simple to operate and has many user-friendly features:

• A built-in 6 cfm vacuum pump for quick, thorough evacuation.

• An electronic scale that weighs recovered refrigerant and recharges by weight for greatest accuracy.

• A pressure/temperature chart mounted directly above the gauges—with just a quick glance you can tell the temperatures in the system.

• A built-in shroud that keeps the tank from falling off the platform.

• Large diameter wheels that make it easy to move the unit.

• A handy storage shelf located below the control panel to hold fittings, adapters and other tools.

IMPORTANT! To validate your warranty, complete the warranty card attached to your unit and return it within ten days from date of purchase.

GLOSSARY OF TERMS

A/C-R Air conditioning or refrigeration A/C-R System The air conditioning or refrigeration system serviced Unit The refrigerant recovery, recycling, recharging unit Tank The refillable refrigerant tank

Introduction

GENERAL OPERATING GUIDELINES

• The voltage at the unit must be ±10% of the unit’s rated voltage. Extension cords must be a minimum of 14 AWG and kept as short as possible.

• To interrupt any procedure (other than clearing), press HOLD/CONT. Press HOLD/CONT again to resume operation.

• The system oil should be drained at the end of every recovery or recycling procedure, during the clearing process, or whenever oil is visible in the sight glass.

• The indicator light will tell you the state of the refrigerant coming into the unit during recovery. ON is liquid, OFF is vapor. The light is not used for recycling since the refrigerant coming from the tank will always be a liquid.

• Some tanks have slightly different valve configurations. Be sure to connect the red hose to the GAS (vapor) valve and connect the blue hose to the LIQUID valve.

• To ensure that the scale readings are as accurate as possible, be sure the tank is not touching the sides of the cart before each procedure.

• To minimize mixing of refrigerants, follow the steps in Changing Refrigerant Types when switching between refrigerant types.

• When the unit is first turned on, the display shows either: “134a” — Indicates R-134a automotive refrigerant using 1/2” Acme fittings. “R12” — Indicates all other refrigerant types using 1/4” flare fittings. “door” — Indicates the unit has been cleared; select R-12 or R-134a. Be sure you have selected the correct refrigerant type.

• Be sure to use the correct hose set for the refrigerant type selected:

Hose Set Tank Hoses (3) System Hoses (2)

R-134a automotive 36”, 1/2” Acme with 96”, one Quick Seal

double Quick Seal with one quick coupler

R-12 automotive 36”, 1/4” flare with 96”, 1/4” flare with

double Quick Seal double Quick Seal

All other refrigerant types 36”, 1/4” flare with 96”, 1/4” flare with

single Quick Seal ball valve

• Present UL approval addresses refrigerants R-12 and R-134a. UL approval is pending for all other refrigerants including new substitutes and blends.

Model 178002K/178012K Recovery/Recycling/Recharging Unit

Set-Up Instructions

Before you begin any procedure, familiarize yourself with the components of your unit.

Lockout Box

INST0146

High Side Port

Diagram of Unit’s Components — External View

Low Side Port

Red Vapor Hose

Blue Liquid Hose Yellow Air

Purge Hose Tank Vapor Valve

Tank Liquid Valve Air Purge Fitting

50 lb. (23 kg) Unit Tank

Scale Assembly

System

Relays

Small Fan

INST0951

Diagram of Unit’s Components — Internal View

Float Chamber

Heat Exchanger

Condenser Coil

Filter-Drier

Vacuum Pump

Sight Glass for

System Oil

Set-Up Instructions

Pressure/Temperature Chart

INST0952

Diagram of Unit’s Components — Side Views

Air Purge Gauge

Display

Main

Power

Switch

System Oil Drain Valve

Liquid/Vapor Indicator

Low Side Gauge

High Side Gauge

Keypad

Air

Purge

Valve

Low

Side

Valve

Diagram of Control Panel and Keypad

Model 178002K/178012K Recovery/Recycling/Recharging Unit

High Side Valve

Set-Up Instructions

System Oil Separator

Return Oil Separator Assembly

INST0953

Diagram of Unit’s Components — Side Views

Large Fan

Compressor

Compressor Start Components

WARNING

Always wear safety goggles when working with refrigerant. Use only authorized refillable refrigerant tanks. Disconnect hoses with extreme caution!

All hoses may contain refrigerant under pressure. Read and follow all warnings at the beginning of this manual before operating the unit.

Set-Up Instructions

Before starting the set-up procedures, open the system oil drain valve and allow the unit to depressurize.

1. Plug the unit into a proper voltage outlet.

CAUTION! Avoid the use of an extension cord because the extension

cord may overheat. However, if you must use an extension cord, use a No. 14 AWG minimum and keep the cord length to 25 feet (7.6 meters) or less.

2. Be sure the oil drain valves on the side of the unit are in the CLOSED position.

3. Turn on the unit. The display flashes “door.” Slide the lockout panel (in the upper left corner of the back of the unit) to expose the 1/4” flare fittings for R-12, then press SHIFT/RESET to lock in that refrigerant type.

4. Connect the R-12 automotive hose set as follows:

• Connect the 36” red hose to the RED fitting in the lockout box.

• Connect the 36” blue hose to the

BLUE fitting in the lockout box.

• Connect the 36” yellow hose to the

HIGH

LOW

YELLOW fitting in the lockout box.

• Connect the 96” red hose to the

RED

HIGH SIDE 1/4” flare fitting in the lockout box.

• Connect the 96” blue hose to the

BLUE

YELLOW

LOW SIDE 1/4” flare fitting in the lockout box.

INST0159

Diagram of Hose Connections — Lockout Box

CAUTION! R-134a automotive systems have

/2” Acme fittings (per

(R-134a shown— R-12 same order and colors)

SAE specifications) to avoid cross-contamination with systems using

/4” flare fittings. Do not attempt to adapt your unit for the other refrigerant

— system failure will result!

Important!

Because the filter-drier has only one access port using a 1/4” flare fitting, you must initially set up the unit for R-12.

Model 178002K/178012K Recovery/Recycling/Recharging Unit

Set-Up Instructions

5. A new tank comes with a dry nitrogen charge of 5 to 10 psi to keep it clean and dry during shipment. Purge the nitrogen charge on the R-12 (gray and yellow) tank by opening the GAS (vapor) valve on the tank. Vent the pressure to the atmo- sphere, then close the valve.

6. Center the unit tank on the scale platform on the back of the unit inside the tank restraint shroud.

7. Install the filter-drier by loosening the large nut on top of the filter shell and rotating the cap counter-clockwise. Pull the spring out and insert the filter-drier with the flat gasket end first. Put the spring on top, and replace the cap. Torque the nut to 300 in. lbs.

8. Remove the black plastic cap from the filter-drier access fitting.

9. Connect the 96” blue low side hose from the back of the unit to the access fitting on the cap of the filter-drier. Connect the 96” red high side hose to the air purge fitting on the tank. Connect the 36” red hose to the red valve on the tank and open the valve. Connect the 36” blue hose to the blue valve on the tank and open the valve.

10. Open both the low and high side valves on the control panel.

Important!

Generously lubricate the O-ring and flat rubber gasket on the filter-drier and the O-ring on the cap with vacuum grease before installing.

INST0151

Diagram of Filter-Drier Installation

Set-Up Instructions

The vacuum pump is shipped without oil in the reservoir. Before starting the unit, you must fill the pump with oil. Two 16-ounce (472 milliliters) bottles of oil are included with your unit.

11. Remove the black plastic plug from the pump’s oil fill port. Attach the flexible spout and cap to the bottle of oil included with your unit. This makes it easier to fill the pump.

12. Add one-half of a bottle of vacuum pump oil to the vacuum pump.

13. Press SHIFT/RESET and ENTER at the same time, then press “VACUUM.” The vacuum pump will start and run continuously. While the pump is running, pour oil into the pump’s oil fill port until the level of oil is even with the line of the pump reservoir sight glass. Replace the black plug on the oil fill port.

14. Let the pump run for about five (5) minutes to remove any air from the unit.

15. To turn off the pump, press HOLD/CONT. Then press SHIFT/RESET to exit the diagnostics mode.

Important!

Be sure the pump is running when adding oil. Do not overfill the pump. The approximate oil charge is 13 oz. (384 milliliters).

16. Disconnect the blue 96” hose from the filter housing fitting on the unit. Disconnect the red 96” hose from the air purge fitting on the tank.

17. Connect the 36” yellow hose to the air purge fitting on the tank.

18. Replace the black cap on the filter housing fitting.

Before using a new tank, you must purge its nitrogen charge and pull it into a vacuum.

Oil Filler Tube

Pump Exhaust

Inlet

Oil Fill Port

Sight Glass

Important!

For an R-134a tank, connect the 36" yellow hose to the RED High Side Service Hose Port. Connect the other end to the air purge valve on the tank.

Diagram of Vacuum Pump Components

Model 178002K/178012K Recovery/Recycling/Recharging Unit

Oil Drain Fitting

Operating Instructions

RECOVERY PROCEDURES

Always wear safety goggles when working with refrigerant. Use only authorized refillable refrigerant tanks. Disconnect hoses with extreme caution!

All hoses may contain refrigerant under pressure. Read and follow all warnings at the beginning of this manual before operating the unit.

Before beginning recovery, be sure your unit is set up as described in the Set-Up Instructions. Also be sure there is vacuum pump oil in the vacuum pump.

1. Connect the high and low side hoses to the A/C-R system, as you would normally connect your manifold gauge set.

2. Be sure both the high and low side valves on the control panel are open. Also be sure both valves on the tank are open.

WARNING!

3. Plug the unit into the proper voltage outlet, and turn on the MAIN POWER switch. The display shows either “134a” (which indicates R-134a automotive refrigerant that uses 1/2” Acme fittings) or “R12” (which indicates all other refrigerant types that use 1/4” flare fittings).

4. Press SHIFT/RESET, then press RECOVER.

Air Purge Gauge

Display

Main

Power

Switch

Liquid/Vapor Indicator

Low Side Gauge

High Side Gauge

Keypad

Diagram of Control Panel

Air

Purge

Valve

Low

Side

Valve

High Side Valve

Operating Instructions

The “CL-L” message shows on the display if there is pressure in the unit, and a selfclearing process of the components begins. You can press HOLD/CONT to bypass clearing if an accurate recovery amount is not required. Otherwise, the compressor will start and the “CL-L” message remains on the display. This process takes from 20 seconds to four minutes to complete. Once the clearing is complete, the unit automatically begins to recover refrigerant from the system. If there is no internal pressure in the unit, refrigerant recovery begins immediately.

CAUTION! If the A/C system pressure is 25 psi or less, the message

“CH-P” appears on the display to alert you not to attempt recovery from an empty system. Do not press HOLD/CONT to continue the recovery process unless you know the A/C system contains refrigerant.

The display shows that the unit is in the RECOVER mode and the AUTOMATIC cycle. You can monitor the amount of refrigerant removed from the system by watching the display. The compressor shuts off automatically when recovery is complete (at approximately 13 inches of vacuum). The display shows the “CPL” message and then alternately flashes the weight of refrigerant recovered.

5. To assure complete recovery of refrigerant, wait for five (5) minutes and watch the

manifold gauges for a rise in pressure above “0.” If a rise occurs, press HOLD/ CONT. Repeat as needed until the system pressure holds for two (2) minutes.

CAUTION! Drain the oil from the separator only after each recovery.

Do not completely depressurize the oil separator; immediately close the valve when oil is completely drained in the next step. The lower right corner of the display will indicate “OIL (OUNCES)” as a reminder.

6. Be sure the oil catch bottle is empty, then slowly open the oil drain valve, and drain

the oil into the oil catch bottle. This oil was removed from the A/C system during recovery. It must be replaced with new oil. When all the recovered oil has completely drained, immediately close the valve and record the amount of oil in the bottle. Dispose of waste oil properly.

If the recovery tank fills completely:

• The compressor shuts off; the digital display shows the message “FULL.”

• Change the tank.

Weight Example

The A/C system is now empty. Make any repairs at this time.

Model 178002K/178012K Recovery/Recycling/Recharging Unit

Operating Instructions

First!

Perform "RECOVERY PROCEDURES" before starting "CHANGING REFRIGERANT TYPES".

Lockout Box

High Side Port

Low Side Port

Red Vapor Hose

Blue Liquid Hose

Yellow Air Purge Hose

Tank Vapor Valve Tank Liquid Valve

Air Purge Fitting

50 lb. (23 kg) Unit Tank

Important!

Before changing refrigerant types, be sure the red high side and blue low side hoses are disconnected from the A/C system.

AUTOMATIC

INST0146

Diagram of Unit’s Components — External View

Scale Assembly

CHANGING REFRIGERANT TYPES

1. Be sure the red high side and blue low side hoses are disconnected from the A/C system, then open the manifold and tank valves.

2. Turn on unit and close the liquid valve on the tank. Press SHIFT/RESET until the "program" message displays. Press and hold SHIFT/RESET and then press "1" to recycle. Unit will pull into a vacuum and shut off.

3. Turn unit on and press SHIFT/RESET until the “Clr” message appears.

4. Press HOLD/CONT to start the system oil separator clearing process.

During the system oil separator clearing process, the compressor is activated and the “OIL” message displays. The compressor will stop while the unit equalizes pressure and the “OIL” message will continue to display. When the unit reaches the correct pressure, the display alternately flashes the messages “OIL” and “DRN.” Open the system oil drain valve to drain the oil. After all oil has drained, the

Operating Instructions

message changes to "CONT". Close the oil drain valve. Press any key to complete the system oil separator clearing process. When this stage is complete, the message changes to "CL-c."

5. If you need to change hoses for the next refrigerant type, go to Step 6. If you do

not need to change hoses, press SHIFT/RESET and go to Step 7.

6. To start the self-clearing process, press VACUUM while the “CL-c” message is

displayed. The “Clr” message then displays and the vacuum pump runs for 5 minutes before shutting off automatically. The “door” message will then display.

7. Close the tank valves and disconnect the red, blue and yellow hoses from the tank. Then remove the tank from the unit.

8. If you are using the same hoses for the next refrigerant type, go to Step 12. If you need to change the hoses, go to Step 9.

9. Disconnect all five (5) hoses from the lockout box fittings. If you need to change the door position on the lockout box, go to Step 10. If you do not need to change the door position, go to Step 11.

10. Slide the door on the lockout box to expose the fittings needed for the next refriger-

ant type. Press SHIFT/RESET to lock in that position.

11. Connect the correct hoses for the next refrigerant to the fittings in the lockout box.

Be sure to use the correct hose set for the refrigerant type selected:

Hose Set Tank Hoses (3) System Hoses (2)

R-134a automotive 36”, 1/2” Acme with 96”, one Quick Seal

double Quick Seal with one quick coupler

R-12 automotive 36”, 1/4” flare with 96”, 1/4” flare with

double Quick Seal double Quick Seal

All other refrigerant types 36”, 1/4” flare with 96”, 1/4” flare with

single Quick Seal ball valve

12. Place a tank (already set up for the next refrigerant) on the unit. Connect the red, blue and yellow hoses to the appropriate tank fittings.

The unit is now ready to process the next refrigerant type.

Model 178002K/178012K Recovery/Recycling/Recharging Unit

Operating Instructions

A/C-R SYSTEM EVACUATION

Always wear safety goggles when working with refrigerant. Use only authorized refillable refrigerant tanks. Disconnect hoses with extreme caution!

All hoses may contain refrigerant under pressure. Read and follow all warnings at the beginning of this manual before operating the unit.

1. Be sure the high and low side hoses are connected to the A/C-R system and that the high and low side valves are open.

2. Press SHIFT/RESET to toggle the display to show “PROGRAM VACUUM MINUTES 15.00.” Fifteen minutes is the default time for evacuation. To change the time, press the appropriate keys to display the desired time. Then press ENTER.

WARNING!

HOLD

The longest time that can be programmed is 98.99 (98 minutes and 99 seconds).

3. Press VACUUM to start evacuation. The display counts down the time remaining. If the message “U-HI” appears, you have 25 psi or greater of pressure at the inlet. You must recover that pressure to continue. If necessary, press RECOVER.

4. When the programmed time has expired, the vacuum pump will automatically shut off and the display will show “CPL.”

To run the vacuum pump continuously, program the time to “99.00,” press EN- TER, then press VACUUM. The pump will start and the display will show “CON AUTOMATIC VACUUM.” To turn the vacuum pump off, press HOLD/CONT, then press SHIFT/RESET.

Operating Instructions

RECYCLING PROCEDURES

WARNING!

Always wear safety goggles when working with refrigerant. Use only authorized refillable refrigerant tanks. Disconnect hoses with extreme caution!

All hoses may contain refrigerant under pressure. Read and follow all warnings at the beginning of this manual before operating the unit.

1. Be sure both valves on the tank are open.

2. Press and hold SHIFT/RESET and then press “1” to start the recycling process.

If the recovery tank is full, the display will show the message “FULL.” Press HOLD/CONT to resume operation.

3. After about five (5) minutes of recycling, the tank temperature should equalize. You can then purge non-condensables.

4. To purge non-condensables, check the air purge gauge to find the temperature of the refrigerant. Use that temperature to find the correct pressure for that refrigerant on the pressure/temperature chart on the top of the unit. Compare the pressure from the chart to the pressure shown on the gauge. If the gauge pressure exceeds the target pressure by more than 10 psi, open the air purge valve on the control panel for about 30 seconds to release non-condensables from the tank. Then close the air purge valve and allow the tank to stabilize for about 30 seconds. Check the air purge gauge again. Repeat this step as necessary during the recycling procedure.

Acceptable Pressure Range 190 to 200 psig

NonCondensables Present

5. To stop recycling, close the tank’s LIQUID valve. The unit will pull into a vacuum and shut off automatically.

Target Pressure of R-22 at 98° is 190 psig

INST0154

Important!

You can stop recycling instantly by pressing HOLD/CONT then SHIFT/ RESET, but this can leave liquid refrigerant in the low side of the unit. Closing the tank’s LIQUID valve is the recommended method.

Diagram of Air Purge Gauge

Model 178002K/178012K Recovery/Recycling/Recharging Unit

Operating Instructions

CHARGING PROCEDURES

Always wear safety goggles when working with refrigerant. Use only authorized refillable refrigerant tanks. Disconnect hoses with extreme caution!

All hoses may contain refrigerant under pressure. Read and follow all warnings at the beginning of this manual before operating the unit.

The unit will display the message “CHECK REFRIGERANT” if there is less than six (6) pounds of refrigerant in the tank. The charging system will not function if this message is displayed. If you try to charge in this situation, the display will also show “Add HOLD” to let you know that refrigerant needs to be added to the tank.

You should add more refrigerant to the tank than what is needed for charging (see Adding Refrigerant to the Tank). To check the weight of refrigerant in the tank, press and hold SHIFT/RESET then press ENTER to access the diagnostic mode. Press “7” to display the weight of refrigerant in the tank. Press SHIFT/RESET again to exit the diagnostic mode.

WARNING!

Weight Example*

Follow the A/C-R system manufacturer’s instructions regarding specific recharging specifications. You must replace any oil lost from the A/C-R system during recovery with new oil. Dispose of waste oil in an appropriate manner.

1. Open the high side valve and, if allowable, the low side valve on the unit’s control panel.

2. Press SHIFT/RESET until the message “CHG” appears on the display.

3. Press CHG and enter the weight of the refrigerant to be charged.

4. Press ENTER. The display will flash to indicate that the charge amount has been recorded in the unit’s memory.

5. Press CHG again to begin the charging process.

6. The display will show the message “AUTOMATIC” and the amount programmed for recharging. The display counts down to zero as charging proceeds.

7. When charging is complete, the display shows the message “CPL.”

*Enter the correct weight for your application.

Operating Instructions

If the unit beeps continuously, the transfer of refrigerant has stopped before the charging procedure was completed (see Correcting An Incomplete Transfer).

8. Close the high and low side valves on the control panel and start the A/C-R system. Compare the gauge readings to the manufacturer’s specifications.

9. Turn off the A/C-R system and disconnect the high side hose from it.

10. Start the A/C-R system and open both the high and low side valves. This will pull the portion of the programmed charge that is trapped in the hoses into the low side of the A/C-R system.

11. At the lowest recommended operating pressure, close the low side valve and turn off the A/C-R system. Disconnect the low side hose from the system.

12. Close the high side valve and turn off the MAIN POWER switch.

CORRECTING AN INCOMPLETE TRANSFER

If the scale value does not change for 30 seconds, the unit beeps continuously to indicate that the transfer of refrigerant was not completed. There are two reasons for an incomplete transfer of refrigerant:

• The pressure in the A/C-R system is equal to the pressure in the tank. The unit produces an audible signal and shows the weight remaining to complete the transfer.

1. Close the high side valve on the control panel.

2. Disconnect the high side hose from the A/C-R system.

3. Continue with Step 9 in Charging Procedures.

• The display shows the message “CHECK REFRIGERANT” because there is not enough refrigerant in the tank.

1. Press HOLD/CONT to interrupt the transfer.

2. Be sure both valves on the tank are closed, then disconnect and remove the tank from the unit. Replace it with a tank containing additional refrigerant.

3. Press HOLD/CONT again to resume the transfer.

Model 178002K/178012K Recovery/Recycling/Recharging Unit

Operating Instructions

ADDING REFRIGERANT TO THE TANK

CAUTION! R-134a systems have special fittings (per SAE

specifications) to avoid cross-contamination with other refrigerant systems. Read and follow all warnings given at the beginning of this manual.

IMPORTANT!

When setting up for new types of refrigerant, a clearing process will have to be performed.

IMPORTANT!

Source tanks must match the hose fitting.

NOTE: Purchase only tanks of R-134a refrigerant that have 1/2 inch (1.2cm) Acme threads. This is necessary to match the hose adapter.

1. Connect the 96-inch (244 cm) blue low side hose to the unit's low-side port. NOTE: Disposable tanks have only one valve and most must be turned upside down

to transfer liquid. If you are using a disposable tank, follow the instructions on the side of the tank to obtain a liquid supply .

2. When using R-12 connect the 6-inch (15.2-cm) yellow adapter to the source

tank liquid valve first. Then connect the 96-inch (244-cm) blue low-side hose to the adapter.

When using R-134a, connect the low-side connector port adapter to the source tank liquid valve first. Then connect the blue 96-inch (244-cm) low-side hose directly to the adapter .

3. Open the LIQUID valve on the source tank (there is only one valve on a nonrefillable tank).

4. Close the high-side manifold valve and open the low-side manifold valve on the front panel of the unit. Open both valves on the unit tank.

Be sure to use the correct hose set for the refrigerant type selected:

Hose Set Tank Hoses (3) System Hoses (2)

R-134a automotive 36”, 1/2” Acme with 96”, one Quick Seal

double Quick Seal with one quick coupler

R-12 automotive 36”, 1/4” flare with 96”, 1/4” flare with

double Quick Seal double Quick Seal

All other refrigerant types 36”, 1/4” flare with 96”, 1/4” flare with

single Quick Seal ball valve

5. Turn on the MAIN POWER. Press SHIFT/RESET, then press RECOVER. Transfer stops automatically and the display shows "CPL" when the source tank is empty and has been pulled to 13 inches of vacuum. The display toggles between "CPL" and the weight in the tank. Y ou can interrupt this at any time by pressing HOLD/CONT once. Press HOLD/CONT again to resume operation.

Operating Instructions

This process takes about 45 minutes. Y ou can interrupt it at any time by pressing

HOLD/CONT once. Press HOLD/CONT again to resume operation, or press SHIFT/ RESET to end the process. The transfer of new refrigerant is limited by weight to leave

space (about 6 pounds of refrigerant) in the unit tank for recovery purposes.

6. When using R-12, close the supply valve on the source tank (when using a

disposable tank, turn it right side up first). Carefully disconnect the 96 inch (244-cm) blue low-side hose from the 6-inch (15.2-cm) yellow adapter, and then remove the yellow adapter from the source tank.

When using R-134a

, ,

, close the supply valve on the source tank, (when using

, ,

a disposable tank, turn it right side up first). Carefully disconnect the 96 inch (244-cm) blue low-side hose from the low-side connector port adapter and then remove the adapter from the source tank.

7. Press RECOVER. The hose will be pulled into a partial vacuum and the unit will

turn off automatically . If the hose is partially clear, the unit will display "CH-P". Press HOLD/CONT to finish clearing the hose. Close the low-side manifold valve.

Any non-condensable gases in the tank can be removed during the recycling sequence. Your unit is now ready for use.

Weight Example *

* The display shows the weight of refrigerant added to the tank.

IMPORTANT!

Be sure to close both tank valves when the unit is not in use. Inspect the unit periodically for leaks. The manufacturer of the recovery/ recycling unit does not reimburse for lost refrigerant.

Model 178002K/178012K Recovery/Recycling/Recharging Unit

Operating Overview

This overview is designed as a quick reference when using your unit. Read and follow all warnings in the operating manual.

RECOVERY OVERVIEW

1. Connect the high and low side hoses to the A/C-R system.

2. Check the manifold gauges. There must be pressure to recover refrigerant.

3. Be sure both the high and low side valves on the control panel are open. Also be

sure both valves on the tank are open.

4. Plug the unit into the proper voltage outlet, then turn on the

MAIN POWER switch.

5. Press SHIFT/RESET, then press RECOVER:

• If there is pressure in the unit, the self-clearing process starts.

Weight Example

• If there is no internal pressure, refrigerant recovery begins.

• The unit then shows “RECOVER AUTOMATIC” and the weight of refrigerant being recovered into the tank.

6. Once the recovery and/or self-clearing procedure is complete, the compressor will shut off automatically. The display will flash “CPL” and the weight of refrigerant recovered.

7. If the A/C-R system pressure rises above zero, you can press HOLD/CONT to recover the remaining refrigerant.

8. The display also shows “OIL (OUNCES).” This is a reminder to drain the system oil separator into a suitable container by opening the ball valve on the side of the unit.

You must replace any oil lost from the A/C-R system during recovery with new oil. Dispose of waste oil in an appropriate manner.

Operating Overview

EVACUATION OVERVIEW

1. Be sure the high and low side hoses are connected to the A/C-R system and that the high and low side valves are open.

The longest time that can be programmed is 98.99 (98 minutes and 99 seconds).

4. When the programmed time has expired the vacuum pump will automatically shut off and the display will show “CPL.”

To run the vacuum pump continuously, program the time to “99.00,” press ENTER, then press VACUUM. The pump will start and the display will show “CON AUTOMATIC VACUUM.” To turn the vacuum pump off, press HOLD/CONT.

RECYCLING OVERVIEW

1. Be sure both valves on the tank are open. Press and hold SHIFT/RESET and then press “1” to start the recycling process.

2. When the tank temperature equalizes (after about five minutes of recycling time), purge non-condensables from the tank. To purge, use the air purge gauge to determine the temperature of the refrigerant. Then use the pressure/temperature chart on the top of the unit to determine the correct pressure for that refrigerant. If the gauge pressure exceeds the target pressure by more than 10 psi, open the air purge valve for about 30 seconds and release non-condensables from the tank.

3. Close the air purge valve and let the tank stabilize (about 30 seconds). Check the air purge gauge again. Repeat Steps 2 and 3 as necessary during the recycling process.

4. Close the tank's LIQUID valve to stop the recycling process. The unit will pull into a vacuum and shut off automatically.

Important!

Model 178002K/178012K Recovery/Recycling/Recharging Unit

Operating Overview

CHARGING OVERVIEW

Follow the manufacturer’s recommendation for charging. You must replace any oil lost from the A/C-R system during recovery with new oil. Dispose of waste oil in an appropriate manner.

1. Open the high side valve and, if allowable, the low side valve.

Weight Example*

*Enter the correct weight for your application.

2. Press CHG and enter the weight of the refrigerant to be charged.

3. Press ENTER, then press CHG again. The display counts down to zero, then

shows the “CPL” message when complete.

4. Close the high and low side valves and start the A/C-R system. Compare the gauge readings to the manufacturer’s specifications.

5. Turn off the A/C-R system and disconnect the high side hose from it.

6. Start the A/C-R system and open both manifold valves to pull refrigerant from the hoses.

7. At the lowest recommended operating pressure, close the low side valve and turn off the A/C-R system. Disconnect the low side hose.

8. Close both manifold valves and turn off the MAIN POWER switch.

Maintenance Procedures

CHANGING THE VACUUM PUMP OIL

When the vacuum pump has run for a total of 10 hours, the “OIL” message will flash on the display to signal that an oil change is needed. To change the vacuum pump oil, follow these steps:

1. Turn on the MAIN POWER switch. The display shows the selected refrigerant

type.

2. Press SHIFT/RESET and the messages “PROGRAM VACUUM MINUTES

15:00” display.

3. Press VACUUM. The display shows the “OIL” message.

4. Remove the black plastic plug on the oil fill port.

5. Remove the oil drain cap from the vacuum pump, then drain the contaminated oil into a suitable container (be sure to dispose of it properly). Replace the oil drain cap.

6. Attach the flexible spout and cap to the oil bottle and pour approximately six (6) ounces of vacuum pump oil into the oil fill port.

7. Be sure the manifold valves are closed, then press SHIFT/RESET and ENTER at the same time to reset the ten-hour timer.

8. Press VACUUM. While the pump is running, slowly add new vacuum pump oil until the oil level is even with the line on the reservoir’s sight glass.

9. Replace the black plastic plug on the oil fill port.

10. Turn off the MAIN POWER switch if you are finished.

Oil Filler Tube

Pump Exhaust

Inlet

Oil Fill Port

Sight Glass

Diagram of Vacuum Pump Components

Model 178002K/178012K Recovery/Recycling/Recharging Unit

Oil Drain Fitting

Maintenance Procedures

CHANGING THE FILTER-DRIER

Because the filter housing fitting is a 1/4” flare, you must be in the R-12 mode to change the filter-drier. If necessary, see Changing Refrigerant Types.

You should change the filter-drier whenever refrigerant has been recovered from a burn-out system or when the display shows the “CH-F” message (which means that the unit has recovered 200 pounds of refrigerant since the last change). To change the filter/drier follow these steps:

1. Press and hold SHIFT/RESET and then press FILTER. The compressor will

start and the display will show the messages “FIL” and “AUTOMATIC.”

2. The compressor will shut off when the vacuum switch trips, and the display will show the messages “FIL” and “HOLD.”

Important:

Do not remove the filter-drier from its sealed bag until you are ready to use it.

3. Loosen the large nut on the filter shell cap, and turn the cap counter-clockwise to remove it.

4. Remove the spring from the top of the filter-drier cartridge. Remove the cartridge by lifting on the metal flip-up handle. This is easier if you use a twisting action or rotate the filter-drier as you pull on it.

5. Open the new filter-drier and generously lubricate the O-ring and flat gasket with vacuum pump grease. Also lubricate the O-ring on the cap.

6. Place the new filter-drier in the filter shell (flat gasket end first). Replace the spring.

7. Replace the cap by turning it clockwise (the groove in the shell should align with the groove in the cap). Torque the large nut to 300 in. lbs.

Maintenance Procedures

8. Connect the low side hose to the access fitting on the filter shell cap, and open the low side valve on the control panel.

9. Press HOLD/CONT. The vacuum pump will start, the display will show the messages “FIL AUTOMATIC".

10. The vacuum pump will continue to run for a total of five (5) minutes and then shut off. The display will show the message “CPL.”

11. Close the low side valve and disconnect the low side hose from the filter shell.

This procedure automatically resets the filter/drier change counter for another 200 pounds of refrigerant.

Diagram of Filter-Drier

Model 178002K/178012K Recovery/Recycling/Recharging Unit

Maintenance Procedures

CHECKING THE SCALE ACCURACY

To ensure continued charging accuracy, check your scale using these procedures every three months.

Important:

Check the scale accuracy every three months.

1. Remove all weight from the scale platform.

2. While in the "Program" mode, press SHIFT/RESET and ENTER at the same time and the "func" message will display when the manual diagnostic mode has been accessed.

3. Press "6". The display will show "0.00."

4. Place a known weight between 10 and 70 pounds on the scale platform. The display will show the known weight on the scale platform (± .04 lb/02 Kg).

CALIBRATING THE SCALE

If necessary, follow these steps to calibrate the scale:

1. Remove all weight from the scale platform.

2. Plug in the unit and turn on the MAIN POWER switch.

3. Press SHIFT/RESET until the PROGRAM message appears.

4. Press SHIFT/RESET and ENTER at the same time to access the diagnostics mode. The message "func" will display.

5. Press "9" to erase the display. Then press ENTER and RECOVER at the same time. The display will flash and show "Zero."

6. Press ENTER again. The display will flash the messages "CAL," then A1," then display "0.00."

7. Place a known weight on the scale platform, then enter that weight numerically on the keypad. For example, to record 20 pounds on the scale, press "2," "0," and "0" on the keypad.

8. Press ENTER again and the display returns to the Vacuum mode.

CHECKING FOR LEAKS

Maintenance Procedures

Every three months, or as specified by local or state laws, you should check your unit for leaks. As with any mechanical equipment, general use, moving the unit and vibration can cause fittings to loosen.

1. Turn off the MAIN POWER switch, and disconnect the power cord from the

outlet.

2. Remove the front shroud by removing the 16 threaded screws on the front of the unit.

3. Use a leak detector to probe all fitting connections for refrigerant leaks. Tighten fittings if a leak is indicated.

4. Replace the shroud.

Important:

Inspect the unit periodically for leaks. The manufacturer does not reimburse for lost refrigerant!

Threaded

Screws

Diagram of Threaded Screws

Model 178002K/178012K Recovery/Recycling/Recharging Unit

Operating Guidelines

USING THE CONTROL PANEL

The control panel has various components that control specific operating functions.

MAIN POWER Switch — Supplies electrical power to the control panel. Digital Display — Shows the time programmed for vacuum and the weight of refrigerant

programmed for recharging. Detailed instructions for programming the digital display follow this section.

Air Purge Indicator — Shows when non-condensables need to be purged from the tank. LIQUID/VAPOR Indicator — Shows if liquid or vapor refrigerant is being recovered. If

the light is on, liquid refrigerant is being recovered. If the light is off, vapor refrigerant is being recovered.

LOW Side Manifold Gauge — Connects to an A/C-R system and shows the system’s low side pressure.

HIGH Side Manifold Gauge — Connects to an A/C-R system and shows the system’s high side pressure.

HIGH Side Valve — Controls the high side flow from the A/C-R system through the unit. LOW Side Valve — Controls the low side flow from the A/C-R system through the unit. Air Purge Valve — Controls the release of non-condensables from the tank.

Air Purge Gauge

Display

Main Power Switch

Liquid/Vapor Indicator

Low Side Gauge

High Side Gauge

Air

Keypad

Diagram of Control Panel and Keypad

Purge

Valve

Low Side

Valve

High Side Valve

Operating Guidelines

KEYPAD FUNCTIONS

In addition to the number keys, the keypad contains special keys that accomplish specific operating functions.

• RECYCLE — Activates the recycling sequence when pressed at the same time as the SHIFT/ RESET key.

• RECOVER — Activates the recovery sequence.

Diagram of Keypad

• SHIFT/RESET — Accesses the “PROGRAM” mode and moves from one program function to the next.

• FILTER — When pressed at the same time as the SHIFT/RESET key, automati- cally recovers and evacuates to 13 inches of vacuum from the filter and low side of the unit so you can change the filter.

• CHG — Automatically charges the A/C-R system with the programmed amount of refrigerant.

• HOLD/CONT — Interrupts the “AUTOMATIC” cycle (HOLD), and then resumes functions (CONT). Press once for HOLD, and again for CONT (continue).

• VACUUM — Activates the vacuum process.

• ENTER — Enters programmed data into the unit’s memory.

USING THE DIGITAL DISPLAY

This section explains the messages shown on the digital display, which is illustrated here for your convenience.

VACUUM RECYCLE MINUTES CHARGE kg lb RECOVER OIL (GRAMS) OIL (OUNCES)

Diagram of Digital Display

Model 178002K/178012K Recovery/Recycling/Recharging Unit

Operating Guidelines

Segment A — Indicates in which mode the unit is operating:

PROGRAM — The unit is in the programming mode, which allows you to pro- gram vacuum time and refrigerant weight or to review the existing program.

HOLD — This mode is used to change a refrigerant tank or to interrupt the

vacuum/charging/recovery cycles. AUTOMATIC — Indicates that the unit is running in a given cycle and will auto-

matically stop when the cycle is complete. One exception: the recycling process must be stopped by pressing HOLD/CONT.

Segment B — Indicates that the unit is either evacuating the A/C-R system or recovering, recycling, or recharging refrigerant or that the unit is ready to be programmed for one of the following functions (Use the chart on the next page as a quick reference for interpreting Segment B messages).

VACUUM

• With PROGRAM, indicates that the unit is ready to be programmed for vacuum.

• With AUTOMATIC, indicates that the vacuum pump is running; the number displayed counts down in minutes and seconds, showing the amount of time remaining.

• With HOLD, indicates that HOLD/CONT was pressed to interrupt the vacuum cycle.

RECYCLE

• With AUTOMATIC, indicates the unit is recycling refrigerant from the tank.

CHARGE

• With PROGRAM, indicates that the unit is ready to be programmed for the amount of refrigerant to be charged into the A/C-R system; on the keypad enter the charge in pounds and hundredths of a pound or kilograms, depending on the measurement mode selected.

• With AUTOMATIC, indicates the unit is charging refrigerant into the A/C-R system; the number shown on the digital display counts down, showing the remaining amount of refrigerant to be dispensed.

Operating Guidelines

• With HOLD, indicates that HOLD/CONT was pressed to interrupt the charging

cycle; the number shown on the digital display is the amount of refrigerant remaining to be charged into the A/C-R system; to continue charging, press HOLD/CONT again.

RECOVER

• With AUTOMATIC, indicates the unit is recovering refrigerant from the A/C-R system and shows the amount of refrigerant recovered in pounds or kilograms, depending on the measurement mode selected.

OIL(OUNCES) or OIL(GRAMS)

• Lights up as a reminder to drain the oil separator after each job.

Segment C — Shows a number or a coded error message on the digital display that

indicates the unit’s operating status or any specific problems. See Troubleshooting for a list of error codes and messages.

Segment D — Indicates that refrigerant is low — approximately six pounds (or 2.7 kilograms) of refrigerant is left in the tank. Either replace the tank or add refrigerant to the tank.

VACUUM + PROGRAM = Program unit for vacuum VACUUM + AUTOMATIC = Vacuum pump is running VACUUM + HOLD = Interrupted vacuum cycle

RECYCLE + AUTOMATIC = Unit is recycling refrigerant CHARGE + PROGRAM = Program unit for charge

CHARGE + AUTOMATIC = Unit is charging A/C-R system CHARGE + HOLD = Interrupted charging cycle

RECOVER + AUTOMATIC = Unit is recovering refrigerant

Quick Reference Chart for Segment B

Model 178002K/178012K Recovery/Recycling/Recharging Unit

Operating Guidelines

USING THE DIAGNOSTIC MODE

The diagnostic mode allows you to run individual components or retrieve stored information. To access the diagnostic mode press SHIFT/RESET to access program mode, then you must press and hold SHIFT/RESET and then press ENTER. The display will show the message “FUNC.” To exit the diagnostic mode, press SHIFT/RESET again.

Some diagnostic functions exit the diagnostic mode when completed so to continue with more diagnostic functions you must re-enter the diagnostic mode.

Once in the diagnostic mode you can do the following:

Operate vacuum pump only:

1. Press 1 to start the vacuum pump. The display will show the message

“VACUUM.”

Important:

To access the diagnostic mode, you must press and hold SHIFT/ RESET and press ENTER. The display will show the message “FUNC.” To exit the diagnostic mode, press SHIFT/RESET again.

2. Press HOLD/CONT and then press SHIFT/RESET to stop the pump.

Set display for pounds or kilograms:

1. Press “0” to display the unit of measure currently set (the unit assumes you want to change the setting).

2. Press ENTER to toggle between "lb" and "kg".

3. When the desired setting displays, press SHIFT/RESET to save the selection.

Display total weight of recovered refrigerant and accumulated vacuum time:

1. Press “3” to display the total amount of refrigerant recovered by unit since the last filter-drier change.

2. This counter resets with every filter-drier change.

Operating Guidelines

To Test Full Display:

1. Press “5” to see the complete LCD display, which only displays momentarily before returning to the Program mode.

2. Press SHIFT/RESET to stop.

VACUUM RECYCLE MINUTES CHARGE kg lb RECOVER OIL (GRAMS) OIL (OUNCES)

To Access Scale Function:

1. Press “6” to “zero out” the display (regardless of what is on the scale platform). The weight of anything you add to the scale platform will now display.

2. Press SHIFT/RESET to stop.

To Display Weight of Refrigerant in Tank:

1. Press “7” to display the weight of refrigerant in the tank.

2. Press SHIFT/RESET to stop.

Example of Full Display Test

Model 178002K/178012K Recovery/Recycling/Recharging Unit

Operating Guidelines

USING DISPLAY CODES

134A R-134a; indicates R-134a automotive refrigerant requiring 1/2” Acme

fittings.

Add Add refrigerant to the tank before starting charging procedures. CAL The scale is out of calibration; see Calibrating the Scale. Check

Refrigerant Tank has six (6) pounds or less of refrigerant; charging will not activate.

CH-F Change compressor oil and filter/drier; 200 pounds of refrigerant has

been recovered since the last change.

CH-P A/C-R system pressure is low; prevents pulling air into the unit from a

leaky system.

CL-c Clearing complete; indicates that the first stage of the clearing process is

complete.

CL-L The low side clearing routine is in progress; this occurs when you press

RECOVER and can last up to four minutes.

Clr Self-clearing; if this message is displayed, the unit is in the self-clearing

process.

CON The vacuum pump will run continuously; press SHIFT/RESET to stop. CONT Continue; indicates that unit pressure has equalized during the first stage

of the clearing process.

CPL Complete; the current procedure is finished. door (Flashes) The unit has been cleared and you can now select a door

position. Slide the refrigerant lockout panel (located on the back of the unit, top left corner) to expose the fittings for the selected refrigerant type.

Operating Guidelines

OIL/drn (Flashes alternately) Drain; open the oil drain valve to relieve the pressure

in the unit.

FIL Filter/drier change procedure is being performed. FULL The tank is full; recovery stops automatically. HI-P High pressure; the unit pressure is greater than 435 psi. OIL Change vacuum pump oil; it has been 10 hours since the last oil change. R12 R-12; indicates R-12 or other refrigerant type requiring 1/4” flare

fittings.

SCAL Scale problem; the scale is broken or disconnected, or the tank has

exceeded 80 pounds gross weight.

U-HI High pressure to vacuum pump; prevents blowing refrigerant through the

vacuum pump. To relieve pressure, perform a recovery process (see the Operating Instructions).

99LB The maximum amount displayed during recovery is 99 pounds. Press

SHIFT/RESET to clear the display.

Model 178002K/178012K Recovery/Recycling/Recharging Unit

Replacement Parts

Following is a list of replacement parts and accessories you may need to service or maintain your unit. Tanks, filter-drier and vacuum pump oil should be purchased through your regular Robinair distributor.

Description 115-Volt 230-Volt Description 115-Volt 230-Volt

Because of ongoing product improvements, we reserve the right to change design, specifications, and materials without notice.

50 lb. (23 kg) tank,

/4” flare fittings 17506 17506

50 lb. (23 kg) tank,

/2” Acme fittings 34750 34750

36” Yellow Hose,

Single Quick Seal RA19293 RA19293

36” Red Hose,

Single Quick Seal 68336A 68336A

36” Blue Hose,

Single Quick Seal with valve core depressor RA19339 RA19339

36” Red Hose,

Auto Shut Off RA19312 RA19312

36” Blue Hose,

Auto Shut Off RA19311 RA19311

36” Yellow Hose,

Auto Shut Off RA19310 RA19310 36” Blue Acme Hose RA19306 RA19306 36” Red Acme Hose RA19307 RA19307 36” Yellow Acme Hose RA19313 RA19313 96” Red Hose,

With Ball Valve RA19296 RA19296 96” Blue Hose,

With Ball Valve RA19298 RA19298 96” Red Hose,

Auto Shut Off RA19308 RA19308 96” Blue Hose,

Auto Shut Off RA19309 RA19309 96” Red Acme

Quick Seal Hose RA19328 RA19328 96” Blue Acme

Quick Seal Hose RA19329 RA19329 Ball Valve (2-way

straight through) RA19044 RA19044 Ball Valve (2-way 90o) RA19291 RA19291 Check Valve

(1/8 MP x 1/8 MP) RA19282 RA19282 Check Valve

(¼ MFL x 1/8 MP) RA19287 RA19287 Check Valve

(1/8 MP x ¼ MFL) RA19288 RA19288 Coupler (1/2 Acme x

Service Coupler) 16301 16301

Compressor RA19800 RA19801 Adapter Kit RA19802 RA19802 Lockout Box RA19334 RA19334 Lockout Box Cable & Switc h RA19229 RA19229 Expansion Valve RA19105 RA19105 Fan (10" Diameter) RA19011 RA19095 Fan (6¾" Diameter) RA17416 RA17516 Filter-Drier Core 17678 17678 Gauge, Air Purge RA19281 RA19285 Gauge, High Side RA19280 RA17712 Gauge, Low Side RA19279 RA17711 Heater Band RA19278 RA19290 Indicator Light (Amber) RA17107 RA17107 Keypad RA19065 RA19065 Main Circuit Board RA19358 RA19336 Float Chamber RA19332 RA19332 R-134a Low Side Coupler 18190A 18190A R-134a High

Side Coupler 18191A 18191A Scale RA19008 RA19008 Solenoid

(High Side Diversion) RA19331 RA19327 Solenoid

(Normally Closed) RA19006 RA19088 Solenoid

(Normally Open) RA17522 RA17578 Solenoid Rebuild Kit for

Normally Closed

Solenoid RA19258 RA19258 Solenoid Rebuild Kit for

Vacuum Solenoid RA19360 RA19360 Strainer Screen 17671 17671 Switch, High Pressure RA19104 RA19104 Switch, Low Pressure RA18752 RA18752 Switch, Oil Drain

Pressure RA19297 RA19297 System Relay-DPST RA17459 RA17324 Vacuum Pump RA15425 RA15628 Vacuum Pump Oil

(1 case of quart bottles) 13203 13203 Vacuum Pump

Protection Switch RA19266 RA19266

Flow Diagram

S1 Recovery Solenoid S2 Liquid/Vapor Solenoid S3 Self-Clearing Solenoid S4 Check Valve Solenoid S5 Oil Return Solenoid S6 Tank Vapor Solenoid R-12 S7 Tank Vapor Solenoid R-134a

INST0954

Model 178002K/178012K Recovery/Recycling/Recharging Unit

S8 Tank Liquid Solenoid R-12 S9 Tank Liquid Solenoid R-134a S10 Recharge Solenoid S11 Recycle Solenoid S12 System Vacuum Solenoid S13 Compressor Vacuum Solenoid S14 Discharge Solenoid

Wiring Diagram

INST0955

Troubleshooting

RECOVERY OPERATION

Compressor does not start

Problem: Main power switch is off Solution: Turn on switch

Problem: Power cord is not plugged in or there is no power at plug Solution: Check circuit for power

Problem: “FULL” message shows on digital display Solution: Change tanks (see Installing a Tank and Pulling A Vacuum)

Problem: “HI-P” message shows on digital display Solution: Be sure tanks valves are open and hoses are properly connected to the

tank, or Check for air in the tank (recycle tank to purge any air), or Check the scale calibration (see Checking the Scale Accuracy)

Problem: “CH-F” message on digital display Solution: Remove and replace the filter-drier (see Replacing the Filter-

Drier), and be sure to pull a vacuum before continuing

Runs for a short time but does not complete recovery

Problem: Tank valves are closed Solution: Open both valves and be sure hoses are properly

connected to the tank

Problem: Manifold valves are closed Solution: Open both valves

Runs but will not shut off

Problem: Oil drain valve is open Solution: Close the oil drain valve

Problem: There is a leak in the A/C-R system Solution: Locate and repair all system leaks

Problem: Hoses are not properly connected to the vehicle Solution: Check hose connections

Problem: Oil return solenoid is open Solution: Replace the oil return solenoid

Model 178002K/178012K Recovery/Recycling/Recharging Unit

Troubleshooting

RECYCLING OPERATION

Compressor does not start or stops prematurely

Problem: Power cord is not plugged in or there is no power at plug Solution: Check circuit for power

Problem: Tank valves are closed Solution: Open both valves and be sure hoses are properly

Problem: “CH-F” message on digital display Solution: Remove and replace the filter-drier (see Replacing the Filter-Drier),

Refrigerant does not flow

Problem: Refrigerant supply empty or low Solution: Add refrigerant to the tank

connected to the tank

and be sure to pull a vacuum before continuing

Problem: Tank valves are closed Solution: Open both valves and be sure hoses are properly

connected to the tank and the unit

RECHARGING OPERATION

No power when MAIN POWER switch is on — no display showing

Problem: Power cord is not plugged in or there is no power at plug Solution: Check circuit for power

Problem: The “CHECK REFRIGERANT” message is displayed Solution: There is less than 6 pounds of refrigerant in the tank; add refrigerant to

the tank

Audible tone sounds during refrigerant transfer

Problem: Transfer stopped or too slow Solution: Close the high side valve, then start the A/C-R system and pull the

remaining refrigerant into the system

Problem: Refrigerant supply is low or empty Solution: Add refrigerant to the tank or change tanks

Problem: Tank valves are closed Solution: Open both valves and be sure hoses are properly

connected to the tank and the unit

EVACUATION OPERATION

Vacuum pump will not start

Problem: Vacuum pump is unplugged from unit Solution: Plug the pump into a power source

Problem: Power cord is not plugged in or there is no power at plug Solution: Check circuit for power

Problem: The pressure in the A/C-R system is too high Solution: Recover the remaining A/C-R system charge

Troubleshooting

Problem: “U-HI” message on digital display Solution: Recover all refrigerant before pulling a vacuum

Problem: Vacuum time not entered Solution: Program the required time for vacuum

Vacuum pump runs but low side gauge does not register an appropriate vacuum

Problem: Low side valve is closed Solution: Open the low side valve

Problem: Pump oil is contaminated Solution: Flush and change the vacuum pump oil

Problem: Hose connection is loose or manifold is leaking Solution: Check connections

CLEARING OPERATION

“CLR” displays on screen

Problem: Pressing HOLD/CONT does not clear the display Solution: Slide the lockout panel on the back of the unit to expose the fittings for the correct refrigerant

type, connect the appropriate hoses and perform a clearing procedure (see Step 12 in Set Up Instructions)

Model 178002K/178012K Recovery/Recycling/Recharging Unit

Limited Warranty

This product is warranted to be free from defects in workmanship, materials, and components for a period of one year from date of purchase. All parts and labor required to repair defective products covered under the warranty will be at no charge. The following restrictions apply:

1. The limited warranty applies to the original purchaser only.

2. The warranty applies to the product in normal usage situations only, as described in the Operating Manual. The product must also be serviced and maintained as specified.

Important!

Please have model number, serial number, date code and proof of purchase (invoice) ready when you call for authorization.

3. If the product fails, it will be repaired or replaced at the option of the manufacturer.

4. Transportation charges for warranty service will be reimbursed by the factory upon verification of the warranty claim and submission of a freight bill for normal ground service. Approval from the manufacturer must be obtained prior to shipping to an authorized service center.

5. Warranty service claims are subject to authorized inspection for product defect(s).

6. The manufacturer shall not be responsible for any additional costs associated with a product failure including, but not limited to, loss of work time, loss of refrigerant, cross-contamination of refrigerant, and unauthorized shipping and/or labor charges.

7. All warranty service claims must be made within the specified warranty period. Proof-of-purchase date must be supplied to the manufacturer.

8. Use of this recovery/recycling equipment with unauthorized refrigerants will void the warranty. Authorized refrigerants are listed on the equipment or are available through the Technical Service Department.

This Limited Warranty does not apply if:

• The product, or product part, is broken by accident.

• The product is misused, tampered with, or modified.

• The product is used for recovering or recycling any substance other than the specified refrigerant type.

Note: Refillable refrigerant tanks are reusable. Do not return them to the factory, unless the tank is defective.

CONVERSION

TABLE

OZ. LBS.

0.5 0.03

1.0 0.06

1.5 0.09

2.0 0.13

2.5 0.16

3.0 0.19

3.5 0.22

4.0 0.25

4.5 0.28

5.0 0.31

5.5 0.34

6.0 0.38

6.5 0.41

7.0 0.44

7.5 0.47

8.0 0.50

8.5 0.53

9.0 0.56

9.5 0.59

10.0 0.63

10.5 0.66

11.0 0.69

11.5 0.72

12.0 0.75

12.5 0.78

13.0 0.81

13.5 0.84

14.0 0.88

14.5 0.91

15.0 0.94

15.5 0.97

16.0 1 lb.

Visit our web site at

www.robinair.com

or call our toll-free

T echnical Support Line at

800-822-5561

in the continental U.S. or Canada.

In all other locations, contact your local distributor. To help us serve you better, please be prepared to provide the model number, serial number, and date of purchase.

To validate your warranty, you must complete the warranty card attached to your unit and return it within ten days from date of purchase.

•

NATIONWIDE NETWORK OF AUTHORIZED SERVICE CENTERS

If your unit needs repairs or replacement parts, you should contact the service center in your area. For help in locating a service center, call the toll free technical support line.

This equipment is designed to meet all applicable agency certifications including Underwriter's Laboratories, Inc., SAE Standards and CUL. Proper maintenance of this equipment will provide accurate A/C service for many years.

Certain state and local jurisdictions dictate that using this equipment to sell refrigerant by weight may not be permitted. We recommend charging for any A/C service by the job performed.

This weight scale provides a means of metering the amount of refrigerant needed for optimum A/C system performance as recommended by OEM manufacturers.

SPX ROBINAIR

Due to ongoing product improvements, we reserve the right to change design, specifications and materials without notice.

122678 (05/00) Printed In USA

Model 178002K/178012K Recovery/Recycling/Recharging Unit

SPX Corporation 1224 Robinair Way, P.O. Box 193 Montpelier OH 43543-0193 USA Phone: 419-485-5561 Fax: 419-485-8300 Web site: www.robinair.com

Robinair 178012K User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual