Bühler technologies EGK 1/2 Notice De Montage page 10

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EGK 1/2
5.1.1 Overview of the menu items
Display of current temperature and operating state
____
Display
____
Displayed is the block temperature with a resolution of 0,5°C/0.75 °F. By pressing the Enter button brings the
Current temperature
display to the Main Menu. The unit of temperature is adjustable in the menu Global Settings (Celsius or Fahrenheit).
Main Menu
Display
Cooler display
Top Settings
Global Settings
Exit
Exit Main Menu
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-
Possible cause
function
No display
• Mains voltage in-
terrupted
• Fuse defective
Cooler doesn't
• Compressor hous-
start up
ing temperature
too high
Display flashes due to:
10
Bühler Technologies GmbH
____
____
Submenu
____
____
Temperature
E1_2
Set temperature
____
Alarm high
Alarm hysteresis
____
Alarm Low
Alarm hysteresis
____
Exit
Exit Submenu
____
toP
____
E
Action
• Connect to
mains; verify
• the plug is inser-
ted correctly
• Check fuse and
replace, if neces-
sary
• Allow to cool
down and ensure
adequate ventil-
ation
Setting range
____
Parameter
tEMP
____
Cooler temperature
____
Parameter
___
A Hi
Upper alarm
____
___
A Lo
Parameter
Lower alarm
E
____
Parameter
C
C - F
• Excess
• Operating point
temperat-
ure
• Cooling output
• Flow rate / dew
• Built-in fan
• Temperat-
• Control unit fail-
ure low
Condensate in-
• Condensate trap
side the gas
output
• Valve inside the
• Cooler overload
Reduced gas
• Gas circuit
flow rate
• Condensate out-
adjust value
store value
wait 5s: no storage
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
Set unit Celsius or Fahrenheit
• Wait (max. 20
not yet reached
min)
• Ensure the vents
too low despite
are not covered
the cooler run-
(heat buildup)
ning
• Maintain limits /
point / gas tem-
install pre-separ-
perature too high
ator
• Check and re-
stopped
place if necessary
• Send in cooler
ure
• Empty condens-
full
ate trap
• Flush in both dir-
automatic con-
ections
densate drain
may be stuck
• Maintain limits
• Remove and
clogged
clean heat ex-
changer
• Send in cooler
put iced over
BX450001 ◦ 10/2018

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