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The Cool-Tech 34788 combines simple operation with superior accuracy. It recovers, recycles, evacuates, leak tests, and recharges R-134a quickly and accurately. Fully automatic function lets you recover, vacuum, leak test, charge, and then walk away.

Features and Functions:

Vacuum Leak Test Automatic Refrigerant Refill Automatic Air Purge Automatic Oil Drain Refrigerant Charging Refrigerant Management Vacuum Function

Robinair Is Ahead of the Game!

Recovers 20% More Refrigerant! Charge Accuracy +/- ½ Ounce Control panel offers flat storage feature when not in use Two large tool storage areas Change between traditional & hybrid vehicle systems without fear of cross contamination with improved oil injection New 2X larger display makes the 34788 easier than ever to use Built-in storage for extra filter On-board storage for compressor oils

Fully automatic function lets you recover, vacuum, leak test, charge, and then walk away.

Combines simple operation with superior accuracy. The Cool-Tech 34788 recovers, recycles, evacuates, leak tests, and recharges R-134a quickly and accurately. Automatic operation means less attention is needed! Automatic Function — With this new option, you can program the unit to recover, vacuum, leak test, charge, and then walk away without having to operate panel valves. Vacuum Leak Test — Will monitor the vacuum level after an evacuation, and inform the technician of a possible leak in the vehicle’s A/C system. Automatic Refrigerant Refill — With this latest advance, you never have to stop in the middle of a job to change refrigerant tanks. The unit maintains a user selectable amount of refrigerant in an internal vessel, and signals when it’s time to change the supply tank, so no monitoring is required. Automatic Air Purge — Eliminates damaging air without any monitoring of gauges or opening of valves. Automatic Oil Drain — The unit automatically drains system oil captured during recovery, and the display reminds you to empty the bottle. Graduations on the container clearly show you how much oil needs to be replaced. Refrigerant Charging — Has never been this easy. Select a charge mode from either the high side, low side, or both. Accuracy features eliminate guesswork! Refrigerant Management Systems—New and improved, system displays refrigerant use and monitors remaining filter life. Prompts appear when 1/3 of filter life remains. Vacuum Function — Defaults to 15 minutes, but is programmable up to 99 minutes. Remaining vacuum time is displayed on the screen.

Specifications:
Voltage	115V 60Hz
Refrigerant Container	On-board 30 lb. (14 kg)
Operating Range	50 Deg to 120 Deg F (11 Deg to 49 Deg C)
Recycling Filter-DrierPump	43 cu. In. spin-on type No. ROB-34724
Free Air Displacement	6 cfm (142 L/min) 50" H x 34" W x 23" D (127 cm x 86 cm x 58.4 cm)
Shipping Weight	235 lbs. (106 kg)

In June 2005, the Society of Automotive Engineers (SAE) started a research program to reduce the emissions of R-134a. The program, called I-MAC (Improved Mobile Air Conditioning), was tasked with cost effectively improving R-134a systems while reducing refrigerant emissions. The I-MAC members have pledged to design smaller systems with fewer leak points and improve service equipment. As a result of this program, the SAE recently approved tighter standards for automotive A/C recovery, recycle and recharge equipment. The new standard, SAE J-2788 requires that all service equipment manufactured after November 1, 2007, must recover 95% of the refrigerant and recharge to within 1/2 ounce.

How will this affect ME?

Up until a couple of years ago, R-134a was cheap and plentiful. Today it’s a different story, refrigerant is much more expensive and not always available. The Robinair 34788 recovers up to 20% more refrigerant, which means it will cost less to recharge the system. The best charge accuracy that could be claimed by older generation service machines is +/- 1 ounce, a 3% error on a two-pound system. That same charge accuracy on a 14-ounce system is over twice the error (7%). Early R-134a systems could still provide some cabin cooling when they were 4-6 ounces (12- 18%) low on refrigerant. However, new designs are so efficient, they do not have reserve refrigerant, and charge accuracy will be critical. In the shop, the Robinair 34788 will recharge the vehicle to within 1/2 ounce of the charge capacity, and you will avoid the dreaded “call back”. As the shop owner, you will realize more profits per service by recovering more refrigerant and charging less. The savings will be obvious.

Combining Simple Operation With Superior Accuracy:

Whether it’s the fully-automatic 34988, 34788 or the semi-automatic 34288, these machines will test, recover, and recharge R-134a automotive AC systems quickly and accurately.

Comparison Chart 34288 34788 34988 Fully-Automatic Function: Program to recover, vacuum, leak test and charge without operating panel valves. - X X Automatic Oil measure & Inject: The machine will automatically determine how much lubrication oil needs to be injected back into the A/C system based on how much oil was taken out during recovery. - - - X Automatic Dye Inject: Gives the user the ability to use the machine to inject UV dye into a vehicle’s A/C system - - X Automatic Oil Drain: A display reminds you to empty the graduated container to show the amount of oil to replace. X X X Oil Inject: Less than 1% cross-contamination. - X X Refrigerant & Oil Database: For North American market vehicles 1994 - 2007 (updates available mid-2008). - X X A/C system flush: Flushes a vehicle’s A/C system with refrigerant eliminating an residual oil or other liquid. - - X Save & Print before and after service data: Allows the user to store before and after service information by vehicle and print this information to provide to a customer. - - X Indicator light and notification alarm: Notifies the user when service is complete, or if a problem has occurred. - - X Vacuum Leak Test: Monitors level after evacuation, informs of possible leak. - X X Automatic Air Purge: Eliminates damaging air without monitoring gauges or opening valves. X X X Automatic Refrigerant Refill: Maintains a user-selectable amount of refrigerant in an internal vessel and signals with it’s time to change supply tank, no monitoring required. X X X Vacuum Feature: Defaults to 15 mins, programmable up to 99 mins. “Remaining time” is displayed. - X X Display: Multilingual X X X Refrigerant Charging: Select a charge mode from high or low side. high or Low high/Low/Both high/Low/Both Refrigerant Management System: Displays refrigerant use and monitors remaining filter life. Prompts appear when 1/3 of filter life remains. X X X

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