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 connector.it's seems to be very tight,open little & try to charging.2# Rebuild charging solenoid.

Posted on Jun 25, 2009

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6ya6ya
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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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Posted on Jan 02, 2017

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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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No, you cant remove tank fill solenoid until close low (Blue) and high (Red) side valve on ISV tank (Internal storage vessel). see attached picture to identify Tank fill solenoid. 39b3bb9f-14fe-4040-a186-3a3a23d2848e.jpg

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Disconnected Air Purge lines. It was under high pressure (careful).

Feb 29, 2012 | Robinair Cool Tech 34700Z Recovery,...

1 Answer

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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.

Jan 20, 2012 | Robinair Cool Tech 34700Z Recovery,...

1 Answer

34700 unit when in the vacuum mode it sends R134 into the oil recovery bottle tank


Please check oil drain sensor(switch) or oil drain solenoid for any debris. If both are check OK, then check Vacuum,Recycle and charge solenoid for any debris or damage. Replace/rebuild as needed. Hope this will help you

Nov 03, 2010 | Robinair Cool Tech 34700Z Recovery,...

1 Answer

Robinair 34700 recovery problem


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

Jul 08, 2010 | Robinair Cool Tech 34700Z Recovery,...

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.

May 28, 2010 | Robinair Cool Tech 34700Z Recovery,...

1 Answer

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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 option.press again enter/start key then follow the on scree message.once you done so,press stop/exit key to complete the prcess.

Aug 18, 2009 | Robinair Cool Tech 34700Z Recovery,...

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