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|BUSCON - INDIANAPOLIS, INDIANA
Booth 1420, Sept 28 - 30
Tip Of The Month
Expansion Valve/Block Restriction
If your expansion valve/block looks cold and frosty
You may have a restriction in the valve.
Install the gauges and check your pressures,
If the low is very Low and the High side is
Higher then normal you might have a bad
Warm the Valve/block in your hand, after a few minutes
Activate the system and see if the Low pressure rises. If the temperature
Doesnít rise and drop the expansion device is defective.
Always replace the receiver drier and flush
The system if there appears to be any contamination.