Pfannenberg IC915 User manual

English
70040-080_01-_.doc
1
IC915 User Manual
Operating Instructions Digital Thermostat
English
Operating Instructions of Digital Thermostat
(Page: - 3 -)

English
70040-080_01-_.doc
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Index
1MAIN VIEW .................................................................................................................................................................3
2KEYS..............................................................................................................................................................................3
3PARAMETERS.............................................................................................................................................................4
4THERMOSTAT MENUS.............................................................................................................................................4
4.1 PROGRAMMING MENU FOLDERS TREE ........................................................................................................................4
4.2 STATUS /SETPOINT MENU...........................................................................................................................................5
5ERRORS TABLE..........................................................................................................................................................5
6MAX TEMPERATURE ALARM (ONLY FOR RACK WITH INSTALLED OPTION) .....................................5
7COOLING .....................................................................................................................................................................6
7.1 COOLING WITH FIXED SETPOINT.................................................................................................................................6

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1 Main view
In main view, the target display shows the value measured by the thermoregulation probe.
Following table explains the meaning associated to LEDs.
Icon
Description
ON
Alarm
ON for an active alarm
°C
With temperature value displayed
Relay of
compressor
Compressor is active
2 Keys
key
Description
press and release
UP
Increase a value
Go to next label
DOWN
Decrease a value
Go to previous label
fnc
Exit without saving new settings
Go back to previous level
set
Confirm value / exit and save new settings
Move to next level (open folder, subfolder, parameter,
value)
Open state/set Menu

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3 Parameters
EB/RACK Water+Glycol
EB/RACK OIL
To enter
Main
Folder.
Sub-folder
PARAMETER
DESCRIPTION
LEVEL
U.M.
RANGE MIN - MAX
DEFAULT
RANGE MIN - MAX
DEFAULT
Press “set”
button
SEt
-
St1
SET-POINT for Compressor
-
°C
10…35
20…30
25
4 Thermostat Menus
4.1 Programming Menu Folders tree

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4.2 Status / Setpoint menu
(SEt folder)
Status menu
In main view, press the set key to access
the Status / Setpoint menu.
folder “SEt”will appears
Press set key again to view the value of
selected parameter. To modify this value
Press the "up" and "down" keys. Press the
set key once you have entered the required
value.* Press the esc key to exit this display
and go back to the previous level.
*N.B. pressing the set key will confirm the value entered;
Pressing the esc key will take you back to the previous
level without saving the value entered.
5 Errors table
Label
Description
Reset
Stops
Type of
Error
Comp.
Fan
Pump
E1
Water Temperature Probe
Fault
Automatic (after replacing/repairing of the
probe)
OFF
OFF
-
Alarm
6 Max Temperature Alarm (only for RACK with installed option)
The regulator gets the temperature measure from the thermoregulation probe; the setpoint of Max temperature Alarm is
40°C for Rack units.

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7 Cooling
7.1 Cooling with Fixed Setpoint
The regulator gets the temperature measure from the thermoregulation probe; the setpoint is 25°C ± 1°C for OIL units.
Control action is proportional to the error and it reaches saturation (100%) when the temperature is greater than the setpoint
plus the “Hysteresys” = 0,1°C.
Compressor Setpoint Settings
Type
Parameter
Factory Setting [°C]
Range of Setting [°C]
EB/RACK Oil
SEt
25
21,5 - 35
All EB/RACK
WS
SEt + "Df1"/2
11,5 - 35
Df1
0,1
0,1
DOCUMENT REVISION HISTORY
Date
N°
Description
Name
28/10/2014
01-_
First Issue
KP