SPX Cooling Technologies ROBINAIR 34700 2K User Manual

Operating Manual  
Model 34700-2K/17700-2K  
Recovery/Recycling/Recharging Unit  
Table of Contents  
Introduction .............................................................................................. 2  
Glossary of Terms ................................................................................. 2  
Setup Instructions.................................................................................... 2  
Initial Setup............................................................................................. 4  
Vacuum Pump Initial Fill ......................................................................... 5  
Installation Routine ................................................................................. 5  
Operating Guidelines............................................................................... 6  
Using the Selection Menu....................................................................... 6  
Change Filter .......................................................................................... 6  
Recycle................................................................................................... 7  
Tank Refill............................................................................................... 7  
Vacuum Oil Time .................................................................................... 7  
Filter Capacity......................................................................................... 7  
Basic/Advanced Prompts ....................................................................... 8  
Selecting a Unit (Metric/English) ............................................................ 8  
Language Select..................................................................................... 8  
Change Defaults..................................................................................... 9  
Using the Control Panel.......................................................................... 9  
Keypad Functions................................................................................. 10  
Operating Instructions........................................................................... 11  
Operating Tips ...................................................................................... 11  
Recovering Refrigerant......................................................................... 12  
Evacuating the A/C System.................................................................. 14  
Replenishing A/C System Oil ............................................................... 16  
Recharging the A/C System ................................................................. 17  
Maintenance Instructions...................................................................... 19  
Replacing the Filter-Drier...................................................................... 19  
Changing the Vacuum Pump Oil .......................................................... 20  
Checking for Leaks............................................................................... 21  
Electrical Protection.............................................................................. 22  
General Maintenance ........................................................................... 22  
Replacement Parts List ......................................................................... 22  
Flow Diagram.......................................................................................... 24  
Wiring Diagram....................................................................................... 25  
Limited Warranty.................................................................................... 26  
U.S. Patents: 4,523,897; 4,688,388 Re 33,212; 4,768,347; 4,805,416; 4,809,520; 4,878,356; 4,938,031;  
5,005,369; 5,005,375; 5,038,578; 5,042,271; 5,209,653; 5,248,125; Australian Patent: 613,058; Canadian  
Patents: 1,311,621; 1,311,622; 2,012,620; 2,026,348; European Patent: 0 315 296 Bl; German Patent: 031296  
Mexican Patent: 16208 OTHER U.S. AND FOREIGN PATENTS PENDING.  
Mfd. by Robinair, SPX Corporation, Montpelier, OH 43543  
1
34700-2K/17700-2K Cool-Tech Recovery/Recycling/Recharging Unit  
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.  
The 34700-2K models are used for R-134a vehicles, whereas the 17700-2K models  
are used for R-12 vehicles. Both models are designed to be compatible with  
existing service equipment and standard service procedures.  
The 34700-2K and the 17700-2K models are UL-listed, single-pass systems that  
meet the SAE specifications for recycled refrigerant.  
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 System  
Unit  
The air conditioning system being serviced.  
The refrigerant recovery/recycling/recharging unit.  
Internal Storage Vessel The refillable refrigerant storage vessel designed  
specifically for this unit.  
Source Tank  
A disposable tank of new refrigerant used to refill  
the internal storage vessel.  
Setup Instructions  
Low Side  
Gauge  
High Side  
Gauge  
Keypad  
2
5
0
2
0
7
R-134A  
R-134A  
bar  
0
0
0
VAC-CHARGE  
CHARGE  
bar  
3
RECOVER  
VACUUM  
kPa  
kPa  
0
0
0
5
0
2
3
4
4
1
in Hg  
VAC  
psi  
psi  
START  
STOP  
HIGH  
CLOSED  
CLOSED  
1
4
2
5
8
0
3
6
F1  
MENU  
RECOVER  
VACUUM  
RECOVER  
VACUUM  
OIL INJECT  
CHARGE  
7
9
CLEAR  
ENTER  
VAC-CHARGE  
STOP  
CHARGE  
RECOVER  
VACUUM  
0
I
START  
1 2 3  
4 5 6  
7 8 9  
F1  
MENU  
Low Side  
Valve  
High Side  
Valve  
Main Power  
Switch  
CLEAR  
ENTER  
0
INST0925  
Diagram of the Control Panel  
2
© 2001 Robinair, SPX Corporation  
Setup Instructions  
1
2
Diagram of Unit’s Components—  
Side View  
3
4
HIGH  
LOW  
1. 1-800 Phone Number Decal  
2. High Side Inlet  
3. Low Side Inlet  
4. Power Cord with Tag  
5. Fill Hose  
6. Tank Strap  
5
6
INST0691  
VAC-CHHARGE  
CHARGE  
RECOVER  
VACUUM  
8
START  
STOP  
LOW  
HIGH  
CLOSED  
CLOSED  
1
4
2
5
8
0
3
6
F1  
MENU  
RECOVER  
VACUUM  
RECOVER  
VACUUM  
OIL INJECT  
CHARGE  
7
9
CLEAR  
ENTER  
1
9
Diagram of Unit’s Components—  
Internal View  
10  
CLOSE  
OUNCES  
12  
MLS  
340  
320  
300  
280  
260  
240  
220  
200  
180  
160  
140  
120  
100  
80  
11  
10  
9
6
8
7
6
5
4
3
2
60  
40  
1
20  
1. Control Panel Assembly  
2. Vacuum Pump  
3. Internal Storage Vessel  
4. Scale Assembly  
5. Oil Drain Bottle  
6. Hose Holder  
FLOW  
5
2
7
7. Air Purge Control  
8. Vacuum Pump Oil Fill  
9. Sight Glass  
3
10. Oil Drain  
INST0946  
4
3
34700-2K/17700-2K Cool-Tech Recovery/Recycling/Recharging Unit  
Setup Instructions  
KEYPAD FUNCTIONS  
In addition to the number keys, the keypad contains special keys that accomplish  
specific operating functions.  
START  
STOP  
START— Begins, or resumes, a function.  
STOP— Terminates, or pauses, a function.  
RECOVER— Activates the recovery sequence.  
VACUUM— Activates vacuum and automatic recycling sequence.  
RECOVER  
VACUUM  
VAC-CHARGE  
CHARGE  
MENU  
VAC-CHARGE— Activates vacuum and automatic recycling sequence,  
followed by a charge.  
CHARGE— Charges A/C system with a programmed amount of  
refrigerant.  
MENU— Enters the selection menu.  
UP/DOWN ARROWS— Scroll through menu items.  
F1 (Inject Oil)— Injects oil into A/C system (active at end of vacuum).  
F1  
VAC-CHHARGE  
CHARGE  
RECOVER  
VACUUM  
STOP  
START  
1 2 3  
4 5 6  
7 8 9  
Diagram of Keypad  
F1  
MENU  
CLEAR  
ENTER  
0
4
© 2001 Robinair, SPX Corporation  
Setup Instructions  
INITIAL SETUP  
CAUTION! R-134a systems have special fittings (per SAE  
specifications) to avoid cross-contamination with R-12 systems. Do not  
attempt to adapt your unit for another refrigerant — system failure will  
result! Read and follow all warnings at the beginning of this manual  
before operating the unit.  
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 as short as  
possible.  
1. The first time the unit is powered up, it will start in the initial setup mode.  
If the initial setup must be performed again, it may be selected using the  
menu function.  
2. The first step is to select a language. Use the UP and DOWN arrow keys to  
select the desired language. Press START to save the currently displayed  
language.  
IMPORTANT!  
You must press  
the MENU key  
to access all the  
functions.  
3. Next select the operating units. Toggle between UNITS ENGLISH and  
UNITS METRIC using the arrow keys. Press START to save the currently  
displayed choice.  
4. Toggle between BASIC/ADVANCED using the ARROW keys. Use the  
BASIC PROMPT option to receive step-by-step, on-screen prompting  
through any procedure. Use ADVANCED PROMPT once you know the  
procedure and no longer need the step-by-step routine. Press START to  
save the currently displayed choice.  
NOTE: This manual is written using the BASIC prompt option  
Diagram of Hose Connections  
Vacuum Pump Components  
1. Fill Hose  
2. Quick-Couplers (34700 Only)  
1. Oil Filler Tube  
2. Pump Exhaust  
3. Oil Fill Port  
4. Sight Glass  
5. Oil Drain Fitting  
6. Inlet  
1
6
2
HIGH  
LOW  
3
4
OPEN  
CLOSE  
1
5
2
INST0692  
INST0701  
5
34700-2K/17700-2K Cool-Tech Recovery/Recycling/Recharging Unit  
Setup Instructions  
NOTE: The vacuum pump is shipped without oil in the reservoir. Before starting  
the pump, oil must be added to the pump, or damage to the pump may occur.  
IMPORTANT!  
For maximum  
performance,  
change the  
5. Press the START key to begin the oil fill process.  
6. Attach the flexible tube and cap to the oil bottle, and pour eight ounces of  
vacuum pump oil into the fill port.  
vacuum pump  
oil frequently.  
7. Press the START key. While the vacuum pump is running, slowly add oil  
until the level rises to the center of the reservoir's sight glass.  
8. Press the STOP key, and replace the black plastic plug on the fill port.  
9. Connect the service hoses, open both panel valves, and press START.  
10. Connect the fill hose to a full source tank.  
IMPORTANT!  
The pump must  
be running  
when adding  
oil.  
11. Open the tank valve. Invert the tank and install it on the back of the unit,  
making sure to secure the tank strap.  
NOTE: If using a refillable tank, install the tank upside down, and connect the fill  
hose to the vapor valve.  
12. Press START, and the unit will automatically run a  
five-minute vacuum to clear all internal air.  
1
RECOVER  
VACUUM  
VAC-CHARGE  
CHARGE  
START  
STOP  
LOW  
HIGH  
CLOSED  
13. After the vacuum is complete, press START to begin  
CLOSED  
1
4
2
5
8
0
3
6
F1  
MENU  
RECOVER  
VACUUM  
RECOVER  
VACUUM  
OIL INJECT  
CHARGE  
7
9
CLEAR  
ENTER  
filling the internal storage vessel.  
CLOSE  
OUNCES  
12  
MLS  
340  
320  
300  
280  
260  
240  
220  
200  
180  
160  
140  
120  
100  
80  
11  
10  
9
2
14. The unit stops when a sufficient amount of refrigerant  
has been transferred to the internal tank, or when the  
source tank is empty. Press the STOP key to pause the  
process. Press STOP again to exit, or START to  
resume. This process takes 15-20 minutes.  
8
7
6
5
4
3
2
60  
40  
1
20  
3
FLOW  
1. Oil Fill  
2. Sight Glass  
3. Oil Drain  
NOTE: Add at least 8 lb. (3.6 kg) of refrigerant before  
stopping the process to ensure enough refrigerant is available  
for charging.  
INST0947  
15. When the fill process is complete, you may press STOP  
to exit.  
16. The unit is now ready to operate.  
NOTE: There is no need to calibrate the scale, because it is  
calibrated at the factory.  
6
© 2001 Robinair, SPX Corporation  
Operating Guidelines  
USING THE SELECTION MENU  
1. Press the MENU button. The top line of the display reads SETUP MENU.  
2. Use the UP and DOWN arrow keys to scroll through the menu choices  
displayed on the second line. The menu choices are:  
1. SELECT LANGUAGE  
2. SELECT UNITS (ENGLISH/METRIC)  
3. TANK REFILL  
7. VACUUM OIL TIME  
8. CHANGE VACUUM PUMP OIL  
9. SELECT PROMPTS  
4. RECYCLE ONLY  
10. CHANGE DEFAULTS (password protected)  
11. VERSION X.XX  
5. FILTER CAPACITY  
6. CHANGE FILTER  
3. Press START to make a choice from the menu. Press STOP to pause any  
process, and STOP a second time to exit any process.  
CHANGE FILTER  
The filter-drier removes acid, particulates, and water from the refrigerant. Change  
the filter-drier after 150 pounds (68 kg) of refrigerant has been filtered. See the  
REPLACING THE FILTER DRIER section on the following page, as well as the  
Maintenance Section, for instructions.  
RECYCLE  
Manual recycling may be necessary if excessive air and/or moisture is recovered  
from the A/C system.  
1. Press the MENU key. Use the arrow keys to select RECYCLE ONLY, and  
press START to begin.  
2. Press the START button to start recycling. To pause recycling, press the  
STOP key. To terminate recycling, press the STOP key again, or press  
START to resume.  
TANK REFILL  
1. Press the MENU key. Use the arrow keys to select TANK REFILL, and press  
START to begin.  
2. Connect the fill hose to the source tank.  
3. Open the tank valve. Invert the tank, install it on the back of the unit, and  
secure the tank strap.  
7
34700-2K/17700-2K Cool-Tech Recovery/Recycling/Recharging Unit  
Operating Guidelines  
NOTE: If using a refillable tank, install the tank upside down, and connect the fill  
hose to the vapor valve.  
4. Press the START key, and the tank automatically refills. The unit stops when  
a sufficient amount of refrigerant has been transferred to the internal tank, or  
if the source tank is empty. Press the STOP key to pause the process. Press  
STOP again to exit, or START to resume.  
5. When the fill process is complete, press STOP to exit.  
VACUUM OIL TIME  
This function displays how long the vacuum pump has run since the last oil  
change.  
1. Press the MENU key. Use the arrow keys to select VACUUM OIL TIME, and  
press START to begin.  
2. The display reads: OIL TIME = XX:XX This shows how long the pump has  
run since the last oil change. The time resets to zero after a VACUUM PUMP  
OIL CHANGE. See page 20 of this manual for details.  
3. Press STOP to exit.  
FILTER CAPACITY  
This function is used to show the operator how many pounds or kilograms of  
refrigerant have been recovered since the last filter change.  
1. Press the MENU key. Use the arrow keys to select FILTER CAPACITY, and  
press START to begin.  
2. The display reads: FILTERED= XXXlbs(kg). This shows how much  
refrigerant has passed through the filter. The amount filtered resets to zero  
after a FILTER CHANGE. See page 19 of this manual for details.  
3. Press STOP to exit.  
SELECT PROMPT (BASIC/ADVANCED)  
Use the BASIC PROMPT option to receive step-by-step, on-screen prompting  
through any procedure. Use ADVANCED PROMPT once you know the procedure  
and no longer need the step-by-step routine.  
1. Press the MENU key. Use the arrow keys to choose SELECT PROMPT, and  
press START to begin.  
2. Toggle between BASIC/ADVANCED using the ARROW keys.  
3. Press START to save the current choice and exit.  
NOTE: This manual is written for the BASIC PROMPT option.  
8
© 2001 Robinair, SPX Corporation  
Operating Guidelines  
SELECTING A UNIT (METRIC/ENGLISH)  
1. Press the MENU key. Use the arrow keys to choose SELECT UNITS, and  
press START to begin.  
2. Toggle between UNITS ENGLISH and UNITS METRIC using the arrow  
key.  
3. Press START to save the current choice and exit.  
LANGUAGE SELECT  
The operator can choose between English, Spanish, French, Italian, or German.  
1. Press the MENU key. Use the arrow keys to choose SELECT LANGUAGE,  
and press START to begin.  
2. Use the UP and DOWN arrows to scroll through the languages.  
3. Press START to save the current choice. Press STOP to exit without saving.  
CHANGE DEFAULTS  
For service use only.  
VERSION  
Displays the current software revision.  
9
34700-2K/17700-2K Cool-Tech 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—Used on the visual interface between the operator and  
the machine.  
LOW SIDE MANIFOLD GAUGE—Connects to an A/C system and shows the  
system’s low side pressure.  
HIGH SIDE MANIFOLD GAUGE—Connects to an A/C system and shows the  
system’s high side pressure.  
LOW SIDE VALVE—Controls the low side flow from the A/C system through  
the unit.  
HIGH SIDE VALVE—Controls the high side flow from the A/C system through  
the unit. It has three positions: 1) Recover/Vacuum, 2) Closed, 3) Oil Inject/Charge.  
1
2
3
4
5
0
2
2
0
7
R-134A  
R-134A  
bar  
0
0
0
CHARGE  
bar  
3
RECOVER  
VACUUM  
VAC-CHARGE  
kPa  
5
kPa  
0
0
0
0
5
0
4
2
3
4
1
in Hg  
VAC  
psi  
psi  
STOP  
START  
HIGH  
CLOSED  
CLOSED  
1 2 3  
4 5 6  
7 8 9  
F1  
MENU  
RECOVER  
VACUUM  
RECOVER  
VACUUM  
OIL INJECT  
CHARGE  
CLEAR  
ENTER  
0
5
0
I
6
7
INST0926  
Diagram of Control Panel  
1. Low Side Gauge  
2. High Side Gauge  
3. Display  
5. Main Power Switch  
6. Low Side Valve  
7. High Side Valve  
4. Bezel & Keypad Assembly  
10  
© 2001 Robinair, SPX Corporation  
Operating Instructions  
OPERATING TIPS  
Follow the SAE-J1991 recommended service procedure for the containment of  
R-12, and the SAE-J2210 recommended service procedure for the containment of  
R-134a.  
The recovery compressor is not a vacuum pump. The compressor pulls the A/C  
system to a partial vacuum only. You must use the unit’s vacuum cycle to remove  
moisture from the A/C system. We recommend a minimum 15-minute vacuum, or  
follow the system manufacturer's recommendations.  
This unit is designed to be used with the manifold gauge set built into the  
control panel.  
The unit includes a 6 cfm (142 l/m) Robinair high vacuum pump for fast, thorough  
evacuation. Change the vacuum pump oil after every 10 hours of use.  
R-134a systems require special oils. Refer to the A/C system manufacturer’s  
service manuals for oil specifications.  
Pressing the START and STOP keys together for several seconds will exit any  
mode and reset the control.  
NOTE: The following operating instructions are written to be used with the  
BASIC PROMPTS mode of operation. It is recommended that the BASIC  
PROMPTS mode is used until the operator becomes very familiar with the  
operation of the unit. See the OPERATING GUIDELINES section of this manual  
for instructions on how to select between BASIC PROMPTS and ADVANCED  
PROMPTS.  
11  
34700-2K/17700-2K Cool-Tech Recovery/Recycling/Recharging Unit  
Operating Instructions  
RECOVERING REFRIGERANT  
WARNING  
Wear safety goggles when working with refrigerant. Read and follow  
all warnings at the beginning of this manual before operating the unit.  
1. Connect the power cord to the back of the unit, and plug it into the correct  
voltage outlet.  
2. Turn on the MAIN POWER and, if necessary, empty the oil drain bottle  
located on the right hand side of the unit.  
3. Press the RECOVER button.  
4. If 150 pounds (68 kg) or more of refrigerant has been recovered since the last  
filter-drier change, the display reads FILTER WEIGHT XXX lb (XX kg).  
Press START.  
NOTE: Refer to the filter change procedure on page 19 of this manual for details  
about replacing the filter.  
5. Connect the high and low side hoses to the A/C system, and open the coupler  
valves.  
6. Put the Low Side Valve in the Recover/Vacuum position. Put the High Side  
Valve in the Recover/Vacuum position. Press START to continue.  
7. If the system pressure is below 25 psi, the display reads: LOW SYSTEM  
PRESSURE until the pressure increases or the START button is pressed. You  
may press STOP to exit at this point.  
8. If the unit has refrigerant in the low-side plumbing, it begins the clearing  
process and displays CLEARING IN PROGRESS. If you wish to skip the  
clearing operation or stop the clearing prematurely, press the START key.  
Manifold Gauges  
Recover  
0
2
5
0
2
0
7
R-134A  
R-134A  
bar  
0
0
0
VAC-CHARGE  
CHARGE  
bar  
3
RECOVER  
VACUUM  
kPa  
5
kPa  
0
0
0
0
5
0
2
3
4
4
1
in Hg  
VAC  
psi  
psi  
STOP  
START  
HIGH  
CLOSED  
CLOSED  
1
4
2
5
8
0
3
6
F1  
MENU  
7
9
RECOVER  
VACUUM  
RECOVER  
VACUUM  
OIL INJECT  
CHARGE  
CLEAR  
ENTER  
0
I
INST0928  
Diagram of Control Panel  
During Recovery  
Valves Open  
12  
© 2001 Robinair, SPX Corporation  
Operating Instructions  
9. When the system has recovered to a vacuum level of approximately 13 in. Hg.,  
the compressor automatically shuts off.  
10. The unit then goes into automatic oil drain, and the display reads: OIL  
DRAINING. Oil draining can require up to 90 seconds to complete.  
11. After the oil drain is complete, the display alternates between:  
RECOVERY COMPLETE  
CHECK OIL BOTTLE  
RECOVERED XX.XX lbs. (X.XX kg)  
RECOVERED XX.XX lbs. (X.XX kg)  
NOTE: The displayed recovered weight can vary depending on ambient conditions,  
and should not be used as an indicator of scale accuracy.  
12. Check the oil drain bottle, and note the amount of oil that was removed from  
the A/C system. This is the amount of oil that must be charged into the A/C  
system after evacuation is complete.  
13. To ensure complete recovery of refrigerant, wait 5 minutes, and watch the  
manifold gauges for a rise in pressure above 0 in. Hg. A pressure rise may  
occur if there was freezing in the A/C system during recovery. If a rise occurs,  
press the START button to resume the recovery process. Repeat as needed  
until the system pressure holds for two minutes, then press STOP to exit.  
Recovery is now complete. You are now ready to make any repairs to the A/C  
system, if necessary, or advance to the Evacuation Process.  
Diagram of the Oil  
Injection System  
1. Oil Injector Bottle  
2. Oil Drain Bottle  
OUNCES  
360  
12  
1
340  
320  
300  
280  
260  
240  
220  
200  
180  
160  
140  
120  
100  
80  
11  
10  
9
8
7
6
5
4
3
2
60  
40  
1
20  
2
INST0699  
13  
34700-2K/17700-2K Cool-Tech Recovery/Recycling/Recharging Unit  
Operating Instructions  
EVACUATING THE A/C SYSTEM  
WARNING  
Wear safety goggles when working with refrigerant. Use only  
authorized refillable refrigerant tanks. Read and follow all warnings  
at the beginning of this manual before operating the unit. In addition  
to the number keys, the keypad contains special keys that  
accomplish specific operating functions.  
IMPORTANT!  
Evacuate the  
system for at  
least 15  
NOTE:  
minutes to  
ensure  
adequate  
moisture and  
contaminant  
removal.  
If any oil was drained from the system during recovery, DO NOT use the VAC-  
CHARGE feature. The oil must be replenished into the A/C system, which is not  
possible when the VAC-CHARGE function is used.  
If the vacuum pump has been run more than 10 hours since the last oil change,  
the display reads: VACUUM OIL TIME XX:XX. Press the STOP key to change  
the vacuum pump oil, or press the START key to continue. Instructions for  
changing the vacuum pump oil are located in the maintenance section of this  
manual. NOTE: Vacuum pump oil should be changed after every 10 hours of  
use to maintain maximum performance and endurance levels.  
If the system being evacuated contains a pressure over 25 psi at any point during  
the evacuation, the display reads PRESSURE EXISTS. This message indicates  
that the A/C system contains refrigerant; press any key to continue. Press the  
RECOVERY key to recover any refrigerant in the system (See RECOVERING  
REFRIGERANT, page 12). After recovery is complete, return to evacuating the  
A/C system.  
IMPORTANT!  
If the vacuum  
pump has run  
for 10 or more  
hours without  
an oil change,  
the message  
VACUUM OIL  
TIME XX:XX  
appears on the  
display.  
VAC-CHARGE  
1. Press the VAC-CHARGE key to select the VAC-CHARGE feature.  
2. Ensure the service hoses are connected and both panel valves are in the  
VACUUM/ RECOVER position. Press START.  
Vacuum  
Vac-Charge  
Change the  
pump oil  
6
0
2
5
0
The Control Panel  
During Evacuation  
0
6
2
5
0
0
0
6
following the  
procedures in  
the  
MAINTENANCE  
INSTRUCTIONS.  
0
0
5
0
7
R-134A  
R-134A  
bar  
8
0
0
0
0
0
0
VAC-CCHARGE  
CHARGE  
bar  
3
RECOVER  
VACUUM  
8
kPa  
5
kPa  
0
0
0
0
5
0
4
2
3
4
1
in Hg  
VAC  
psi  
psi  
3
STOP  
START  
HIGH  
CLOSED  
CLOSED  
1
4
2
5
8
0
3
6
F1  
MENU  
7
9
RECOVER  
VACUUM  
RECOVER  
VACUUM  
OIL INJECT  
CHARGE  
CLEAR  
ENTER  
0
I
INST0929  
14  
© 2001 Robinair, SPX Corporation  
Operating Instructions  
NOTE: It is not necessary to change the High side panel valve from vacuum to  
charge when performing the VAC-CHARGE function.  
3. Press the START key to charge the default amount of refrigerant, or use the  
number keys to enter the desired charge weight. Then press the START key.  
4. If the weight entered leaves less than 3 lbs (1.36 kg) of refrigerant in the  
internal storage vessel, the VAC-CHARGE process does not begin, and the  
display reads INSUFFICIENT REFRIG. At this point, refrigerant must be  
added to the internal storage vessel. See page 6 of this manual for internal  
storage vessel refill instructions, and then return to Step 1 of EVACUATING  
the A/C system.  
IMPORTANT!  
Evacuate the  
A/C system for  
at least 15  
minutes to  
ensure  
adequate  
moisture and  
contaminant  
removal.  
5. If the internal storage vessel contains a sufficient amount of refrigerant, press  
the START key to accept the default evacuation time of 15:00 minutes, or  
enter the desired vacuum time by using the number keys. Then press the  
START key.  
6. The unit automatically charges the A/C system after the specified vacuum  
time has elapsed.  
7. Advance to Step 4 of RECHARGING the A/C SYSTEM in this manual to  
complete the charging process.  
VACUUM  
1. Press the VACUUM key.  
2. Ensure the service hoses are connected and panel valves are in the correct  
position. Press START.  
3. Press the START key to accept the default evacuation time of 15:00 minutes,  
or enter the desired vacuum time by using the number keys, and press the  
START key.  
4. The unit evacuates the A/C system and stops when the specified time has  
elapsed. Pressing the STOP key will pause the process. Press START to  
resume, or STOP again to exit.  
5. You are now ready to replenish the A/C system oil (if necessary), or to  
recharge the system with refrigerant.  
15  
34700-2K/17700-2K Cool-Tech Recovery/Recycling/Recharging Unit  
Operating Instructions  
REPLENISHING A/C SYSTEM OIL  
CAUTION! To prevent air from entering the A/C system, never let the  
oil level drop below the pickup tube while charging or replenishing.  
Before charging the A/C system, you must replenish any oil removed from the A/C  
system during the recovery process. Charge only the amount of oil that was  
removed from the A/C system during recovery. Check the oil drain bottle to  
determine the amount of oil that was removed during recovery. Empty the oil drain  
bottle before recovering the next A/C system to prevent an inaccurate oil charge.  
NOTE: If no oil was removed from the A/C system during recovery, DO NOT  
charge any oil into the A/C system.  
THE VACUUM CYCLE MUST RUN COMPLETELY OR THE OIL INJECT  
WILL NOT OPERATE.  
1. Select the correct oil for the A/C system being serviced. Refer to the vehicle  
manufacturer's service manual.  
2. Adjust the o-ring around the oil injector bottle to the required oil charge level.  
For example, if the bottle's oil level is at 4 ounces, and you need 1/2 ounce of  
oil to replenish the A/C system, place the o-ring at the 3 1/2 ounce level.  
3. Reattach the oil injector bottle to the unit.  
4. Close the Low Side manifold valve. Put the High Side valve in the Oil Inject/  
Charge position.  
5. Press the F1 (INJECT OIL) button once and release it when it “beeps.” Press  
the F1 button again and hold it until the oil level reaches the o-ring.  
6. Press the STOP button after the oil charge is complete to recharge the A/C  
system with refrigerant. You must recharge the AC system with refrigerant at  
this time to ensure all of the oil is delivered.  
6
0
2
5
0
7
0
0
0
3
5
0
0
0
0
8
2
0
0
0
2
0
0
0
0
4
0
5
0
0
1
0
0
3
3
6
0
2
5
0
5
1
0
0
3
Inject  
Oil  
Button  
0
6
0
2
0
0
2
0
OUNCES  
12  
1
360  
340  
0
0
5
0
7
R-134A  
11  
10  
9
320  
300  
280  
260  
240  
220  
200  
180  
160  
140  
120  
100  
80  
0
R-134A  
bar  
0
0
3
1
8
R
0
0
0
0
0
0
0
1
VAC-CCHARGE  
CHARGE  
0
bar  
kPa  
8
3
RECOVER  
8
VACUUM  
8
D
5
kPa  
0
A
0
7
T
0
0
R
E
0
0
0
5
0
4
2
3
4
1
6
in Hg  
VAC  
0
psi  
5
psi  
3
0
4
3
STOP  
START  
2
60  
40  
1
20  
HIGH  
CLOSED  
CLOSED  
1
4
2
5
8
0
3
6
Oil  
F1  
MENU  
7
9
RECOVER  
VACUUM  
RECOVER  
VACUUM  
OIL INJECT  
CHARGE  
Drain  
Bottle  
CLEAR  
ENTER  
Oil  
Inject  
Bottle  
0
I
INST0930  
INST0699  
Diagram of the Oil Injection System  
Control Panel  
16  
© 2001 Robinair, SPX Corporation  
Operating Instructions  
RECHARGING THE A/C SYSTEM  
WARNING  
Wear safety goggles when working with refrigerant. Use only  
authorized refillable refrigerant tanks. Disconnect hoses with  
extreme caution! All hoses may contain liquid refrigerant under  
pressure. Read and follow all warnings at the beginning of this  
manual before operating the unit.  
IMPORTANT!  
Evacuate the  
A/C system for  
at least 15  
minutes for  
adequate  
moisture and  
contaminant  
removal.  
1. Press the CHARGE button. (If an oil inject has been performed, the  
CHARGE key does not have to be pressed.)  
2. Put the Low Side Valve in the Closed position. Put the High Side Valve in  
the Oil Inject/Charge position. Press START to continue.  
3. Accept either the default weight by pressing START, or type in a weight  
with the number keys, and press START.  
4. If the weight entered will leave less than 3 lbs (1.36 kg) of refrigerant in the  
refrigerant tank, the charge function will not start, and the display reads:  
INSUFFICIENT REFRIG.  
PRESS ANY KEY TO EXIT  
See the Operating Guidelines section of the manual for refill instructions.  
5. Upon entering a valid charge weight, the display reads:  
CHARGE IN PROGRESS  
CHARGED= X.XX lbs. (X.XX kg)  
6. If, during the charge cycle, the weight fails to charge 0.05 lbs (0.02 kg) in 30  
seconds, the unit intermittently beeps while the display alternates between:  
CHARGING HAS SLOWED  
PRESS START TO RETRY  
CHARGE HAS SLOWED  
OR STOP TO EXIT  
7. Pressing the START button when the charging is slowed causes the charge  
to resume. If charging does not complete, see the SLOW CHARGE  
PROCEDURE below.  
8. When the charge is complete the display will show  
CHARGE COMPLETE  
X.XXlb (kg) CHARGED  
9. For R-134a systems, close the high and low side coupler valves. Remove the  
service hoses from the A/C system.  
The A/C system is now ready for use.  
17  
34700-2K/17700-2K Cool-Tech Recovery/Recycling/Recharging Unit  
Operating Instructions  
SLOW CHARGE PROCEDURE  
WARNING  
Before starting the vehicle's engine, verify that it is in PARK or  
NEUTRAL, with the emergency brake ON.  
Never run a vehicle without adequate ventilation in the work area.  
CAUTION! Close the high side manifold valve before starting the  
vehicle A/C system.  
1. Close the High Side Valve. Put the Low Side Valve in the Recover/Vacuum  
position.  
2. Start the vehicle, and set the AC system to its maximum setting.  
3. Press START. The unit charges out of the low side inlet only, allowing the  
vehicle's compressor to pull the refrigerant into the A/C system.  
4. When the unit is finished charging, the display reads:  
CHARGE COMPLETE  
X.XX lb (kg) CHARGED  
5. Close the LOW SIDE manifold valve.  
6. Turn off the vehicle's engine.  
7. For R-134a systems, close the high and low side coupler valves. Remove the  
service hoses from the A/C system.  
The A/C system is now ready for use.  
18  
© 2001 Robinair, SPX Corporation  
Maintenance Instructions  
REPLACING THE FILTER-DRIER  
Order part no. 34724 for a replacement filter-drier. The filter-  
drier on this unit is designed to trap acid and particulates, and  
is formulated to remove water from the refrigerant. You must  
change the filter-drier to ensure adequate moisture and  
contaminant removal.  
Typically, you can recycle up to 150 pounds (68 kilograms)  
of refrigerant between filter changes.  
CAUTION! For best results, use Robinair filter-  
driers (part no. 34724). All performance tests and  
claims are based on using this specially blended  
filter-drier. Use of another may affect performance  
results.  
1. Press the MENU button.  
INST0478  
2. Scroll through the menu to CHANGE FILTER and  
Filter-Drier  
press START.  
3. Press START again, and the unit will begin clearing the  
filter.  
4. When clearing is complete, the display reads:  
TURN UNIT OFF AND REPLACE FILTER  
5. Turn off the main power, and unplug the machine.  
MAIN POWER BREAKER  
CONTROL BREAKER  
6. Open the unit door, and replace the old filter with  
the new filter.  
OUNCES  
12  
MLS  
340  
320  
300  
280  
260  
240  
220  
200  
180  
160  
140  
120  
100  
80  
11  
10  
9
8
7. Close the unit door, plug in the machine, and turn  
on the Main Power.  
7
6
5
4
3
2
60  
40  
1
20  
The filter change is now complete.  
Filter  
Drier  
INST0948  
Location of the Filter-Drier  
19  
34700-2K/17700-2K Cool-Tech Recovery/Recycling/Recharging Unit  
Maintenance Instructions  
CHANGING THE VACUUM PUMP OIL  
For maximum vacuum pump performance, change the vacuum pump oil after  
every 10 hours of operation.  
1. Turn on the MAIN POWER switch.  
2. Press the MENU button.  
IMPORTANT!  
Review current  
local, state, and  
federal statutes,  
cases, laws, and  
regulations to  
determine the  
current status and  
appropriate  
disposal method  
for pump oil. It is  
the responsibility  
of the user to  
NOTE: Do not connect the service hoses to a vehicle.  
3. Use the arrow keys to select CHANGE VACUUM PUMP OIL, and press  
START.  
4. Press START again to begin.  
5. The vacuum pump will run for two minutes. Allow the vacuum pump to run  
until it automatically stops.  
determine if a  
material is a  
hazardous waste  
at the time of  
disposal. Ensure  
that you are in  
compliance with  
all applicable laws  
and regulations.  
6. Remove the black plastic plug on the oil fill port of the vacuum pump.  
7. Remove the oil drain cap from the vacuum pump, and drain the oil into a  
suitable container for correct disposal.  
8. Replace the oil drain cap.  
9. Attach the flexible tube and cap to the oil bottle, and pour eight ounces of  
vacuum pump oil into the fill port.  
10. Press the START key. While the vacuum pump is  
running, slowly add oil until the level rises to the center of  
the reservoir's sight glass.  
1
11. Press the STOP key and replace the black plastic plug on  
VAC-CHARGE  
CHARGE  
RECOVER  
VACUUM  
START  
STOP  
LOW  
HIGH  
CLOSED  
CLOSED  
1
4
7
2
5
8
0
3
6
9
F1  
MENU  
the fill port.  
RECOVER  
VACUUM  
RECOVER  
VACUUM  
OIL INJECT  
CHARGE  
CLEAR  
ENTER  
12. The unit is now ready to operate.  
CLOSE  
OUNCES  
12  
MLS  
340  
320  
300  
280  
260  
240  
220  
200  
180  
160  
140  
120  
100  
80  
11  
10  
9
2
8
7
6
5
4
3
2
60  
40  
1
20  
3
FLOW  
1. Oil Fill  
2. Sight Glass  
3. Oil Drain  
INST0947  
20  
© 2001 Robinair, SPX Corporation  
Maintenance Instructions  
1
6
2
3
4
OPEN  
CLOSE  
5
Diagram of Vacuum Pump  
1. Oil Filler Tube  
2. Pump Exhaust  
3. Oil Fill Port  
4. Sight Glass  
5. Oil Drain Fitting  
6. Inlet  
CHECKING FOR LEAKS  
Every three months, or as specified by local or state laws, you should check the  
unit for leaks.  
IMPORTANT!  
Inspect the unit  
periodically for  
leaks. The  
manufacturer  
does not  
1. Turn off the MAIN POWER switch, and disconnect the power cord from the  
outlet.  
2. Open the rear door. Remove the top cover and front panel.  
reimburse for  
lost refrigerant.  
3. Use a leak detector to probe all connections for refrigerant leaks. Tighten  
fittings if a leak is indicated.  
4. Reassemble the body panels and close the rear door.  
21  
34700-2K/17700-2K Cool-Tech Recovery/Recycling/Recharging Unit  
Replacement Parts List  
ELECTRICAL PROTECTION  
The unit is equipped with two circuit breakers. If either circuit breaker trips, the  
unit will not function correctly and may lose all power. Press the circuit breaker  
button to reset. The circuit breakers are on the back of the unit.  
GENERAL MAINTENANCE  
1. On a regular basis, wipe off the unit with a clean cloth to remove grease, dust,  
or other dirt.  
2. Periodically check the internal components for leaks—over time, fittings can  
loosen as the unit is moved. Open the unit door panel, and trace lines with a  
leak detector. Also, check connections on the back of the unit. Tighten any  
loose fittings or connections you may find.  
REPLACEMENT PARTS LIST  
The following is a list of replacement parts and accessories you may need to  
service or maintain your unit.  
We suggest you keep several filter-driers on hand so you will always be able to  
change them and complete any recycling job that is in progress.  
Premium High Vacuum Pump Oil is also available in handy quart containers, or in  
convenient gallon containers:  
Quart (shipped 12 quarts per case) No. 13203  
Gallon (shipped 4 gallons per case) No. 13204  
Because of ongoing product improvements,  
we reserve the right to change design, specifications,  
and materials without notice.  
22  
© 2001 Robinair, SPX Corporation  
Replacement Parts List  
34700-2K  
17700-2K  
R-12  
Replacement  
Part Number  
R-134a  
Replacement  
Part Number  
Component  
96" Red Hose  
63096  
62096  
68396A  
68296A  
96" Blue Hose  
Fan  
RA17416  
34724  
RA17416  
34724  
Filter-Drier  
Compressor  
RA19458  
RA15425  
RA19427  
RA40994  
RA18752  
RA19429  
RA19592  
RA17419  
RA19603  
RA19768  
RA19742  
RA19741  
18190A  
RA19458  
RA15425  
RA19427  
RA40994  
RA18752  
RA19429  
RA19592  
RA17419  
RA19603  
RA19768  
RA19742  
RA19741  
18190A  
Vacuum Pump  
High Pressure Switch  
Main Power Switch  
Vacuum Switch  
Pump Protection Switch  
Automatic Expansion Valve  
Oil Catch Bottle  
Scale Assembly  
Control Module  
High Side Gauge  
Low Side Gauge  
Low Side Coupler  
High Side Coupler  
Automatic Air Purge  
Solenoid Rebuild Kit  
Castors  
18191A  
18191A  
RA19743  
RA19258  
RA19631  
RA19612  
RA19744  
RA19258  
RA19631  
RA19612  
ISV (Internal Storage Vessel)  
23  
34700-2K/17700-2K Cool-Tech Recovery/Recycling/Recharging Unit  
Flow Diagram  
I
24  
© 2001 Robinair, SPX Corporation  
Wiring Diagram  
25  
34700-2K/17700-2K Cool-Tech Recovery/Recycling/Recharging Unit  
Limited Warranty  
Robinair Limited Warranty Statement  
Rev. July 11, 2003  
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.  
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 recovery/recycling equipment with unauthorized refrigerants, sealants, or dyes  
will void the warranty.  
• Authorized refrigerants are listed on the equipment or are available through the  
Technical Service Department.  
• The manufacturer prohibits the use of the recovery/recycling equipment on air  
conditioning (A/C) systems containing leak sealants, either of a seal-swelling or  
aerobic nature.  
• The manufacturer prohibits the use of dyes injected through the oil injection device  
on the recovery/recycling equipment.  
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. This includes, but is not limited to, materials and chemicals used to seal  
leaks in A/C systems.  
• The product is equipped with an oil injection device that has been used to inject dye.  
The manufacturer only endorses the use of separate dye injection devices, and does not  
support the use of the oil injection feature for this purpose.  
Note: Refillable refrigerant tanks are reusable.  
26  
© 2001 Robinair, SPX Corporation  
Notes  
27  
34700-2K/17700-2K Cool-Tech Recovery/Recycling/Recharging Unit  
Notes  
28  
© 2001 Robinair, SPX Corporation  
CONVERSION  
TABLE  
Visit our web site at  
or  
OZ.  
LBS.  
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
3.5  
4.0  
4.5  
5.0  
5.5  
6.0  
6.5  
7.0  
7.5  
8.0  
8.5  
0.03  
0.06  
0.09  
0.13  
0.16  
0.19  
0.22  
0.25  
0.28  
0.31  
0.34  
0.38  
0.41  
0.44  
0.47  
0.50  
0.53  
0.56  
0.59  
0.63  
0.69  
0.69  
0.72  
0.75  
0.78  
0.81  
0.84  
0.88  
0.91  
0.94  
0.97  
1 lb.  
%
Call our Toll-Free  
Technical 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 of your unit.  
To validate your warranty, you must complete the warranty card  
attached to your unit, and return it within ten days from date of  
purchase.  
9.0  
9.5  
NATIONWIDE NETWORK OF AUTHORIZED SERVICE CENTERS  
10.0  
10.5  
11.0  
11.5  
12.0  
12.5  
13.0  
13.5  
14.0  
14.5  
15.0  
15.5  
16.0  
If your unit needs repair or replacement parts, contact the service  
center in your area. For help in locating a service center, call the  
toll-free technical support line.  
Due to ongoing product improvements,  
we reserve the right to change design,  
specifications, and materials without notice.  
The347002K/177002Kisdesignedtomeetallapplicableagencycertifications,including  
Underwriter'sLaboratories, Inc., SAEStandards, andCUL. Correctmaintenanceofthis  
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 Corporation  
655 Eisenhower Drive  
Owatonna, MN 55060-0995 USA  
Tech Services:1-800-822-5561  
Fax: 1-800-822-7805  
Customer Service: 1-800-533-6127  
Fax: 1-800-322-2890  
124080 (Rev. C, 7-09-03)  
347002K/177002K Cool-Tech  
© SPX Corporation  

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