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Re: why can u not fill my isv it will try but shuts off...
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.
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? 6:05 www.youtube.com/watch?v=XW8o5tahLpE Aug 30, 2013 - Uploaded by OTC TOOLS
This video takes the viewer through the entire Set Up and Operation of the 34788. The Cool-Tech 34788 ...
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.
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.
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
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
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
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
Please check the following:1# For not filling ISV tank (internal storage vassel) Check tank fill solenois,it's may need to rebuild or replace.2# For not compleet recovery,Check & make sure your machine compressor haveing 13''HG suction.if not then you have to replace new compressor.3# Check 13'' vacuum sensor is working properly.
NOTE:PLEASE CHECK FILTER CAPAICITY,BECAUSE EVERY 68Kg/150Lbs OF REFRIGERANT RECOVERY YOU MUST CHANGE SPIN-ON FILTER.
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