TrilliumSeries™ Adiabatic
Cooler - TRF Operation & Maintenance Manual
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Component Information & Maintenance
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Pressure Reducing Valve
The adjustable pressure-reducing valve sets the make-up water pressure. The valve must be protected against freezing by
heat tracing all exposed make-up water lines if the water cannot be shut off and external piping cannot be drained.
The pressure reducing valve is factory set at 45 psi (3 bar) for all TRF model numbers. To verify this setting, see the pressure
setting indicator that is visible on both sides of the valve. An adjustment lock screw is located at the top of the set point knob.
See
for details. Shut off isolation valves (this is typically done by others) before adjusting the pressure setting of the
valve.
Inspect and clean the cartridge at least every 12 months. When checking, cleaning, or replacing the cartridge:
1. Shut off isolation valves (this is typically done by others).
2. Remove the cartridge shown in
and clean the stainless-steel filter.
3. Reinstall following same procedure.
Figure 4. Pressure Reducing Valve
Figure 5. Removal of Self-Contained Cartridge
Set point adjustment knob
Pressure setting indicator
Adjustment lock screw
