EGK 1/2
5.1.1 Overview of the menu items
Displayed is the block temperature with a resolution of 0,5°C/0.75 °F. By pressing the Enter button brings the
display to the Main Menu. The unit of temperature is adjustable in the menu Global Settings (Celsius or Fahrenheit).
store value
adjust value
wait 5s: no storage
Set unit Celsius or Fahrenheit
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E1_2
Display of current temperature and operating state
Main Menu
Submenu
Setting range
Display
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Current temperature
Parameter
Parameter
Temperature
Display
Alarm high
Parameter
Alarm Low
Parameter
Top Settings
Exit
Exit
Cooler display
Set temperature
Alarm hysteresis
Upper alarm
Cooler temperature
Lower alarm
Alarm hysteresis
Exit Submenu
Global Settings
Exit Main Menu
Adjust the set point:
2°C...20°C / 35.6°F...68°F
Set the upper alarm threshold above
setpoint: tEMP 1°C...7°C / 1.8°F...12.6°F
Set the lower alarm threshold below
setpoint: tEMP -1°C...-3°C / -1.8...-5.4F
tEMP
A Hi
A Lo
E
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C
toP
E
C - F
6 Maintenance
Always observe the applicable safety- and operating regula-
tions when performing any type of maintenance. Please refer
to the original operator’s manual on the included CD or online
at www.buehler-technologies.com for maintenance informa-
tion.
7 Service and Repair
Please refer to the original operator’s manual on the included
CD or online at www.buehler-technologies.com for a detailed
description of the unit including information on
troubleshooting and repair.
7.1 Troubleshooting
Problem / Mal-
function
Possible cause
Action
No display
• Mains voltage in-
terrupted
• Connect to
mains; verify
• the plug is inser-
ted correctly
• Fuse defective
• Check fuse and
replace, if neces-
sary
Cooler doesn’t
start up
• Compressor hous-
ing temperature
too high
• Allow to cool
down and ensure
adequate ventil-
ation
Display flashes due to:
• Excess
temperat-
ure
• Operating point
not yet reached
• Wait (max. 20
min)
• Cooling output
too low despite
the cooler run-
ning
• Ensure the vents
are not covered
(heat buildup)
• Flow rate / dew
point / gas tem-
perature too high
• Maintain limits /
install pre-separ-
ator
• Built-in fan
stopped
• Check and re-
place if necessary
• Temperat-
ure low
• Control unit fail-
ure
• Send in cooler
Condensate in-
side the gas
output
• Condensate trap
full
• Empty condens-
ate trap
• Valve inside the
automatic con-
densate drain
may be stuck
• Flush in both dir-
ections
• Cooler overload
• Maintain limits
Reduced gas
flow rate
• Gas circuit
clogged
• Remove and
clean heat ex-
changer
• Condensate out-
put iced over
• Send in cooler
10
Bühler Technologies GmbH
BX450001 ◦ 10/2018
