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Setting Operational Parameters / Limits
Various operational parameters are user-adjustable. They are accessed by pressing and holding the Units/Menu
Button until HL appears on the Pressure/Flow Rate Display. Pressing and releasing the Units/Menu Button once
HL appears allows you to scroll through the various parameters; rotating the Select/Set Knob allows you to
change the displayed setting. You can accept the displayed value by either pressing the Select/Set Knob or
allowing the display to timeout.
Operational parameter limit alarms will shut down the compressor, fan, pump and heaters. Some temperature
values are only displayed and settable in ºC
NOTE: Some parameters listed may not be included in your version of software.
NOTE: The ranges and default settings shown are for standard models. Ranges and default settings for your
unit may differ depending on the options selected.
HL
High Temperature Limit — Limits the maximum allowable
set point temperature. Audio and visual alarm indicators are
activated when the measured fluid temperature reaches the
HL temperature setting.
NOTE: EHL will appear on the display if the High Limit value
is set below the current set point.
Units without heater
option (6xxx ) =
+20 to 40 ºC
(68 to 104ºF)
Units with heater option
(5xxxx) = +20 to 95 ºC
(68 to 203ºF)
6xxx = 40 ºC
5xxx = 95 ºC
LL
Low Temperature Limit — Limits the minimum allowable
set point temperature. Audio and visual alarm indicators are
activated when the measured fluid temperature reaches the
LL temperature setting.
NOTE: ELL will appear on the display if the Low Limit value
is set above the current set point.
0.0 to +15 ºC
(32 to 59 ºF)
5.0ºC
HA
High Ambient Temperature Limit — Maximum ambient
temperature limit. Displayed and settable only in ºC. Should
the ambient temperature rise above the HA value, the audio
and visual alarms will activate and the compressor, heater,
fan, and pump will turn OFF.
NOTE: Chiller’s rated cooling capacity is dependent on an
ambient temperature of 20°C (68ºF). Performance will
decrease as the ambient temperature rises. Continuous
operation at ambient temperatures above 40ºC (104ºF) is
not recommended.
+30 to 50ºC 40 ºC
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