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How to remove refrigerant manually form isv - Robinair Cool Tech 34700Z Recovery, Recycling, Recharging

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Open air purge hose from the ISV tank,then press tank valve as needed to purge air from the tank

Posted on Sep 07, 2010

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Why can u not fill my isv it will try but shuts off instantly?


If it's a replaceable tank it likely has a check valve to prevent backfilling. If the tank is designed to be refilled you may need a different hose for filling it, check the manual.

Aug 07, 2014 | Robinair Cooltech 34788 R134a Automatic...

1 Answer

How to drain the isv in ac34700z


To clean contaminated ISV of Robinair 34700Z, open front lower panel, then slowly disconnect 3 hoses from ISV (Liquid, Air purge and Vapor). Now unscrew ISV tank from machine and then fixed an adapter to Liquid port of the tank to allow all the contaminated refrigerant to go out from tank. after emptying the tank, if possible make vacuum for approx. 10 minute with an external vacuum pump. Replace everything its original location after completing vacuum. Now change spin-on filter (Located on the back side of the machine) and vacuum pump oil. Your machine is now ready to work.
Thanks and I hope this will help you to solve your problems.

Jun 24, 2014 | Robinair Cool Tech 34700Z Recovery,...

1 Answer

DISPLAY READS HIGH PRESSURE UNIT DISABLED


This is a common problem of Robinair 34700Z / 347002K & 347112K series machine. So don't worry just do the following, with POWER SWITCH OFF: - 1# Open front panel cover and verify the ISV tank is not overfilled. If full, carefully remove refrigerant manually from ISV tank by pressing tank valve. 2# verify if there is high pressure in the ISV tank. Purge excess air from the tank manually. (Open air purge hose from the ISV tank, then carefully press tank valve as needed to blow out excess pressure from the ISV tank)

After doing all above stapes and your problem still exist then replace air purge solenoid (Air purge solenoid located near the ISV tank and fixed with automatic air purge device). Hope this will solve your problem, if so please vote for it for farther help! Good luck

May 17, 2011 | Robinair Cool Tech 34700Z Recovery,...

1 Answer

High pressure unit disabled on unit


If your machine is one of the bellow Model:- Robinair 34700Z / 347002K & 347112K series. just do the following, with POWER SWITCH OFF: - 1# Open front panel cover and verify the ISV tank is not overfilled. If full, carefully remove refrigerant manually from ISV tank by pressing tank valve. 2# verify if there is high pressure in the ISV tank. Purge excess air from the tank manually. (Open air purge hose from the ISV tank, then carefully press tank valve as needed to blow out excess pressure from the ISV tank)
After doing all above stapes and your problem still exist then replace air purge solenoid (Air purge solenoid located near the ISV tank and fixed with automatic air purge device). Hope this will solve your problem, if so please vote for it for farther help! Good luck

May 13, 2011 | Robinair Cool Tech 34700Z Recovery,...

1 Answer

"Tank Full! Remove Refrigerant From


You should post your problem with Model number of the machine.
However if your machine model is 34700Z, you can try to do the following :
With power OFF, Open front panel cover and remove refrigerant manually from the ISV tank.Open Liquid hose from the tank,then press tank valve as needed.Hope this will solve your problem

Dec 15, 2010 | Robinair Cool Tech 34700Z Recovery,...

1 Answer

Robinair cooltech 34788 scale error reset


You may overfill the ISV tank. #1 Open front cover & close LIQUID valve on the ISV. #2 Disconnect LIQUID hose from tank,then open tank liquid valve (which you close earlier) to reduce some refrigerant manually from the ISV tank. #3 after reduce refrigerant from tank, re-connect everything & switch on the machine. #4 If you still have the same problem then you have to re-calibrate the scal. I hope this will help you

Nov 04, 2010 | Robinair Cool Tech 34700Z Recovery,...

1 Answer

The ISV shows 21 pounds. it is way overfilled...how do we bleed it off


Please do the following :- With power OFF remove refrigerant manually from ISV tank.Open Liquid hose from the tank,then press tank valve as needed.Hope this will solve your problem

Jun 26, 2010 | Robinair Cool Tech 34700Z Recovery,...

1 Answer

Reads high pressure unit dissabled


This is a common problrm of Robinair 34700Z / 347002k & 347112k series machine.so don't worry just do the following :- 1# Verify the ISV tank is not overfilled.if full,remove refrigerant manually from tank. 2# Verify if there is high pressure in the tank.Purge excess air from the tank manually.( Open air purge hose from the tank,then press tank valve as needed) 3#Check the high pressure switch for proper operation,if not then replace high pressure switch.Hope this will solve your problem

Feb 05, 2010 | Robinair Cool Tech 34700Z Recovery,...

1 Answer

High pressure unit is disabled


1# Verify the ISV tank is not overfilled.if full,remove refrigerant from tank. 2# Verify if there is high pressure in the tank.Purge excess air from the tank manually.( Open air purge hose from the tank,then press tank valve as needed) 3#Check the high pressure switch for proper operation.Hope this will solve your problem.

Jun 29, 2009 | Robinair Cool Tech 34700Z Recovery,...

1 Answer

Cooltech 700 display reads high tank weight resetting but machine does nothing else


Please do the following:1# With main power OFF,disconnect liquid line from ISV (internal tank) & press tank valve to reduce refrigerant manually as needed.2# Disconnect air purge line & reduce access air from ISV as needed.3# Turn main power ON & calibrate scal if needed.Hope this will solve your problem.

Jun 23, 2009 | Heating & Cooling

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