Hypertherm DuraChill 5 HP Air-Cooled Chiller For Hypertherm - Manual (Page 15)

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5.3 Controller Display / Menu Navigation
Actual Fluid Temperature — Fluid temperature leaving the chiller is displayed on the right hand LED display.
Pressure and Flow Rate -- The pump pressure and flow rate are displayed on the left hand LED display. Press and
release the Units/Menu Select button to choose the measurement to be displayed. Flow meter is not fitted on this
model. Scrolling down this menu shows “At” ambient temperature in control compartment and “P2” Remote
temperature (not fitted on the model.)
Set Point Temperature — The set point temperature can be checked at any time by pressing the Select/Set knob.
Operational Setup Menus and Values — Operational Setup Menus are accessed by pressing and holding the
Units/Menu Select button until “HL” is displayed. Continued pressing of the Units/Menu Select button will scroll
through the menu.
Menu parameters are changed by turning the Select/Set knob. Displayed values can be accepted by pressing either
the Select /Set knob or simply allowing a few seconds to pass without any keypad activity.
NOTE: After a few seconds of keypad inactivity, the Controller automatically returns to the normal operating display.
5.4 Checking / Adjusting the Set Point
NOTE: The factory default set point temperature is 15°C (59°F).
Press the Select/Set Knob on the front panel. The current set point temperature will be displayed and the decimal
point at the bottom right of the display will flash, indicating the temperature can be changed.
Rotate the Select/Set Knob until the desired set point temperature is displayed. The setting is accepted after either
pressing the Select/Set Knob a second time or will be accepted automatically after a few seconds of inactivity.
5.5 Selecting Celsius or Fahrenheit (°C or °F)
The LED’s adjacent to the Temperature Display indicate the unit of measure (°C or °F). To change from °C to °F or
vice versa, proceed as follows:
To change to °F — Place the main Disconnect Switch on the front of the chiller in the “Off” position. Press
and hold the Units/Menu Select Button while returning the Disconnect Switch to the “On” position.
To change to °C — Place the main Disconnect Switch on the front of the chiller in the “Off” position. Press
and hold the Power Button on the front panel while returning the Disconnect Switch to the “On” position.
IMPORTANT: All user settings, except calibration offset, return to the original factory defaults when the unit in which
temperature is displayed is changed. The Chiller’s temperature set point and various alarm settings should be reset
to the desired values.
5.6 Pressure Display – 0 to 247 psi; 0 to 1700 kPa
Psi – Pressure will display from 0 to 99 psi. Above 99 a decimal point will appear between the digits. This means
drop the decimal and add 100 to the reading. For example; 1.2 = 112 psi, 7.4 = 174 psi. Above 199 psi display will
read _._.
kPa x 100 – Pressure will display from 0 to 1700 kPa.
5.7 High Temperature Limit (HL)
This menu item serves two functions. First, it establishes the maximum allowable set point temperature and thus
helps prevent an operator from inadvertently setting the temperature set point above a pre-established temperature.
Secondly, it serves as a high temperature alarm, automatically activating both audio and visual alarm indicators when
the measured fluid temperature reaches the HL setting. The compressor, heater, fan, and pump will also turn off.
To change the high temperature limit value, rotate the Select/Set Knob until the desired value is displayed on the
temperature display.
HL 35
.0