Specifications

HighInletTemperatureRefrigeratedAirDryer
17
Filter Element Replacement
1. Depressurizetheairsystemtorelease
the compressed air from the air dryer.
Notice:Shuttingdowntheaircompressorwill
not depressurize the air dryer unit.
Close air line valves before and after
dryer and then depressurize unit.
 Depressurizedryerbypushingthetest
button on the dryer system drain until
there is no more pressure in the dryer
system.
2. Removethefilterbowlbyturningthebowl
1/4 turn counter clockwise, be sure the O-ring
is in place on the top half of the oil filter
housing and that the O-ring seats properly. Air
leaks may occur if the O-ring is not secured
(important).
3. The same procedure applies when removing
the filter separator for changing the element (if
applicable).
Hot Gas By-Pass Adjustment
Check the refrigerant suction pressure gauge for
operation, if it requires adjustments perform the
following steps:
1. Donotturnoffthedryer.Adjustonlywhenno
air is passing through dryer.
2. Open the top cover to reach the valve.
3. If the refrigerant suction pressure is below
30psig(R-134a),turntheadjustmentbolt
clockwise (1/8 turn intervals) and allow a few
minutes for refrigerant to stabilize.
4. Ifsuctionpressureisabove45psig(R-134a),
turn the adjusting bolt counter-clockwise.
5. Letthedryeroperateforafewminutesand
read the suction pressure gauge. Continue to
adjust the valve until the pressure reads between
30-40psig(R-134a).
HotGasBy-passadjustment