PUREGAS, LLC
P4200W2 Series Air Dryer User’s Guide
Page 75 of 113
P012308 - Rev. E
9.9 Measuring Heatless Dryer Solenoid Voltage
9.9.1
Remove the Front Panel (section 8.10 ).
With the Compressor running
:
9.9.2
Locate the Heatless Dryer
Cycle Timer.
The timer has three (3) sets of
terminals (from left-to-right):
“
VALVE
” – Left solenoid
“
IN
” – Incoming power
“
VALVE
” – Right solenoid
9.9.3
Use a Voltmeter to measure
the DC voltage across each
set of “
VALVE
” terminals.
Continue to measure for up to 45
seconds if no voltage is initially
measured.
The voltage should measure:
•
53 VDC
for the P4200W2 & P4200W2LP models.
•
106 VDC
for the P4202W2, P4202W2LP & P4202W2H models.
9.9.4
Reinstall the Front Panel (section 8.10 ).
If the voltage does not measure as indicated above, this is an indication that the
Cycle Timer is defective and should be replaced. See sections 11.4 for part detail
and 11.7 for ordering information
