Measuring Heatless Dryer Solenoid Voltage - Puregas P550W Series User Manual

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9.8 Measuring Heatless Dryer Solenoid Voltage

With the Compressor running:
9.8.1 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
9.8.2 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 Volts DC.
If the voltage does not measure 53 Volts DC, this is an indication that the Cycle
Timer is defective and should be replaced. See sections 11.3 for part detail and
11.5 for ordering information.
P550W Series Air Dryers User's Guide
Page 65 of 99
P011658 – Rev. P