Question about Robinair Cool Tech 34700Z Recovery, Recycling, Recharging

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Model Robinair 34700 Series 21699 Date 09/97 very slow when recharging system? Same problem on any vehicle. Tried closing off high side and running the vehicle ac n/g Any Help Thanks Tony

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Please do the following 1# Check your machine ISV tank liquid line quick's seems to be very tight,open little & try to charging.2# Rebuild charging solenoid.

Posted on Jun 25, 2009


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Robinair 34700z will only fill 1/2 of recommended refrigerant

Try running the compressor for a while,then see if you can get more into the system on the low side,not the high side while it is running,until the sight glass on receiver dryer clears from being milky.

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I would be very careful releasing refrigerant from the liquid side of the tank as suggested earlier. Knowingly releasing R134 into the atmosphere carries very large fines if you get caught and is very environmentally irresponsible.

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It sound like one of the pressure trunsducer is not working or disconnected from the manifold assy.or from ISV tank.Please check Low,High and ISV tank pressure transducer

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1 Answer

I have a Robinair 34700, during vacuuming and recycling I lose about 200 g refrigerant gas.

Don't worry this is normal.Because while machine is running for vacuum or recycle mode,automatic air purge device will active for some time & it will purge air from ISV.

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1 Answer


Calibration procedure for Robinair AC machine.
NOTE:FOR SCAL CALIBRATION YOU SHOULD HAVE 9KG/20LB OF WEIGHT.From main menu go to change default (press 8787 for old type machine or 5454 new type machine)
then press enter/start key.after enter to default nenu you have to select calibrate scal again enter/start key then follow the on scree message.once you done so,press stop/exit key to complete the prcess.

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