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compressor must be capable of producing before replacement is mandatory.
10.10
THE PURIFICATION REACTOR
10.11
If, as in Section 9.8, a one or two-minute check of the rotameter reading, Figures 1
and 6 (7), as well as the OUTPUT PRESSURE gauge, Figures 1 and 6 (6), should
both allow sudden drops during a one-minute observation:
(a)
If the sudden change is only momentary with recovery within a second or two,
it would indicate that the output pressure had been set too close to the low
pressure reading on the INPUT PRESSURE gauge by the operator. During a
one-minute cycle each of the solenoids on the purification reactor open and
admit air to the purification chambers. It is during these times, for short
intervals, that the input pressure will drop and then recover. The low pressure
reading during the drop indicates the maximum pressure the operator can set
with the OUTPUT PRESSURE REGULATOR as observed on the OUTPUT
PRESSURE gauge. See Section 4.5 for further clarification.
(b)
If, after only twenty-five or thirty seconds of each minute there is full output
pressure and uninterrupted flow on the rotameter, these symptoms indicate
that only one of the solenoid valves on the inlet to the purification reactor is
opening or that for some reason flow through one of the solenoid valves is
being obstructed.
10.12
Further confirmation can be made by performing the following checks:
(a)
If the timer cams are turning, simply listen for the "click" of each of the
solenoid valves during one full cycle of the timer. Each of them should be
energized for alternate halves of each cycle. If both solenoids "click", the
problem is that one of the two solenoid valves is obstructed. If the purification
reactor is older than one year, it is best to replace both solenoid valves. If less
than one year, contact the factory for complete purification reactor
replacement under warranty.
(b)
If the timer cams are turning but one or both of the solenoid valves do not
"click", disconnect the electrical disconnects leading from the timer to the
purification reactor. Check for 120V AC or 220V AC (depending upon your
input voltage) at each of the male disconnects leading from the timer during a
one-minute cycle.
(1)
If the AC voltage is present at one disconnect but not the other, the
problem lies with one of the microswitches on the timer. With the meter
still connected to that disconnect where the AC voltage is not present,
alternately depress the micro switch arms, which ride on the cams, with
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