15
Donaldson Company, Inc.
Compressed Air Installation
Turn compressed-air supply
OFF and bleed lines before
performing service or maintenance work.
A safety exhaust valve should be used to
isolate the compressed air supply. The safety
exhaust valve should completely exhaust
pressure from the collector when closed and
include provisions to allow closed-position
locking.
Do not set compressed-air
pressure above 60-psig.
Component damage can occur.
All compressed air components must be sized
to meet the maximum system requirements of
50-psig supply pressure.
The compressed-air supply must be oil
and moisture free. Contamination in the
compressed air used to clean filters will result
in poor cleaning, cleaning valve failure, or poor
collector performance.
Purge compressed-air lines to remove debris
before connecting to the unit’s compressed-air
manifold.
1. Compressed-air components must be sized for
system requirements as follows: one, two, or three
power modules, 0.86 CF at 50-psig or 1.0 CF at
60-psig.
2. Connect the compressed-air supply line to the 1-in
NPT connection located at the rear of each power
module. Use thread-sealing tape or pipe sealant on
all compressed-air connections.
3. Install a customer-supplied shut-off valve, bleed-
type regulator with gauge, filter, and automatic
condensate valve in the compressed-air supply line.
4. With power supply ON, check the operation of the
solenoid valves. The valves should open and close
sequentially at factory set 10-second intervals.
5. If a Photohelic
®
gauge, Torit Delta P, Torit Delta P
Plus, or similar device is used to control the solid-
state timer, the solenoid valves pulse only when
the differential pressure reaches the high-pressure
setpoint. The valves continue to pulse until the low-
pressure setpoint is reached.
power supply*(208/230/460/575/60/3)
disconnect switch*
low voltage starter*
solid-state timer
blower electrical*
solenoid electrical*
compressed air
supply line*
light switch*
industrial light electrical*
industrial light
booth
assembly
power
module
* customer supplied
sprinkler system (not shown)*
Compressed Air and Component Installation
