Hypertherm DuraChill 5 HP Air-Cooled Chiller For Hypertherm - Manual (Page 17)

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5.13 Low Ambient Temperature Alarm Setting (LA)
This menu item allows you to set the ambient temperature at which the chiller will alarm and turn off. This serves to
protect the chiller from short cycling at low ambient temperatures. This value is always displayed and set in °C.
LA 2 .0
5.14 Controller Operating, Alarm, and Error Messages
When certain conditions are detected, a message code flashes on the display and the local audio alarm sounds.
Depending on the nature of the condition, power to various systems components, such as the compressor, heater,
fan, and pump, is removed. When condition is rectified, push front panel Power button or turn circuit breaker off then
on to clear the fault or error.
Message
Code
Description Action Required
EC
External remote control
active, Chiller in standby.
Normal – Unit idle until remotely activated.
(To operate locally press switch
on rear panel to “Local” position.)
EFL Low Water Level
Fluid level in reservoir below upper float switch (7
gallons low) An alarm will sound until attended to.
Fill to within 2 inches of top.
EF2 Water Level / Flow Alarm
Warning Alarm — Either of 2 conditions..
1. Fluid level below lower float switch (level 9 gallons
low. Fill to within 2 inches of top.
2. Insufficient flow to heat exchanger. An alarm will
sound and after a delay, unit will shut down.
Troubleshoot recirculation pump.
EHA
Front panel high ambient
temperature warning.
Warning - The ambient temperature is higher than the
set ambient limit.
Lower ambient temperature or raise temperature limit.
EHL
High temperature set point
warning
Warning — The temperature set point is higher than
the high temperature limit value. If not corrected, the
high temperature limit alarm will be activated when
fluid temperature rises above established the HL
value.
Lower temperature set point or increase high
temperature limit value.
ELA
Front panel low ambient
temperature warning.
Warning – The ambient temperature is lower than the
set ambient limit.
Raise ambient temperature or low temperature limit.
ELL
Low temperature set point
warning
Warning — The temperature set point is lower than
the low temperature limit value. If not corrected, the
low temperature limit alarm will be activated when
fluid temperature falls below the established LL value.
Increase temperature set point or decrease low
temperature limit value.
LLO Local Lockout
Normal — Indicates that Local Lockout feature (see
Section 5.18) is enabled. Appears momentarily when
Select/Set Knob is pressed to view/change set point
value.
CAn Cancel Local Lockout
Normal — Indicates the Local Lockout feature (see
Section 5.18) has been disabled. Appears
momentarily when Local Lockout status is changed
from enabled (LLO) to disabled.
Note: When the following faults occur, “Ft” will be displayed on the left display and the error code will appear on the right display