Issue 3.2 10
Fluid flow and pressure
KT1 series chillers contain a high-pressure volumetric pump capable of 150 psi. All units
are normally supplied with a pre-set maximum of 50 psi unless a different pressure is
required. Pressures above this will cause the internal safety bypass valve to open,
protecting your application from potentially dangerous pressures.
It is possible for users to change the operating pressure of the chiller, as follows:
1. Switch off the chiller.
2. Remove the cover from the chiller by removing the 4 screws on each side. Release
the earth connection tab mounted on the underside of the cover, left hand side as
viewed from the front.
3. Switch on the chiller and while running, release the locking nut on the pressure
relief valve; a grey valve mounted on the pump head and located at the right side
of the chiller, as viewed from the front.
4. Turn the valve knob anticlockwise to reduce the flow/pressure, clockwise to
increase the flow/pressure. Secure the locking nut once you have achieved your
desired pressure.
5. The pressure can be observed on the gauge on the front panel.
6. Switch off the chiller, replace cover, securing the earth tab and secure with the
screws provided.
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