Code
The access to some adjustment values can be restricted via a user code (customer).
1. Installer 0262 (Factory setting)
All menus and adjustment values are shown and all values can be altered.
2. Customer 0000
The installer level is not shown, adjustment values can be changed partly.
For safety reasons, the user code should generally be set to the customer code
before the controller is handed to the customer!
Î In order to restrict the access, enter 0000 in the menu item CODE.
The display changes to the status level. The short menu shown will then be available
in the adjustment level. The short menu suits the selected system.
Î In order to authorise access to the installer level, enter 0262 in the menu item
CODE.
Short menu
Channel Factory setting Adjustment range Designation
TIME 12:00 00:00 … 23:59 Time
DT O 6.0 K 1.0 … 50.0 K Switch-on temperature difference store
DT F 4.0 K 0.5 … 49.5 K Switch-off temperature difference store
S SET 45 °C 5.0 … 95.0 °C Store set temperature
S MAX 60 °C 4 … 95 °C Store maximum limitation
LST ON ON / OFF Loading store on
DT2O 6.0 K 1.0 … 50.0 K Switch-on temperature difference store 2
DT2F 4.0 K 0.5 … 49.5 K Switch-off temperature difference store 2
S2SET 45 °C 5.0 … 95.0 °C Set store temperature store 2
S2MAX 60 °C 4 … 95 K Store maximum limitation store 2
LST2 ON ON / OFF Loading store 2 on
CODE 0000 0000 / 0262 User code
In the case of an error, the control LED starts ashing red and a message is indicated
in the status display. A warning triangle is additionally indicated. If more than one
error or fault condition has occurred, only the one with the highest priority will be
displayed as a message in the status display.
Error code
display
Plain text display Monitoring function Cause
0001 !LINE BREAK SENSOR X! Sensor line break Sensor line broken
0002 !SHORT CIRCUIT SENSOR X! Sensor short circuit Sensor line short-circuited
0011 !∆T TOO HIGH! ∆T too high Collector 50 K > than store to be loaded
0021 !NIGHT CIRCULATION! Night circulation Betw. 11 p.m. and 5 a.m. col. temp. > 40 °C
0031 !FL/RE INTERCHANGED! FL/RL interchanged Col. temp. does not rise after switching on
0061 !DATA MEMORY DEFECTIVE!
Storing and changing adjustments
not possible
0081 STORE MAX EXCEEDED Maximum store temperature St. max has been exceeded
After the error has been removed and acknowledged, the error message disappears.
Î In order to acknowledge an error message, select the message and press the left button (
⟲) for 2 s.
In the case of a sensor error, the system switches off, and a message appears on the
display. Additionally, a corresponding value for the error type assumed is indicated.
9 User code and short menu – Adjustment values
10 Messages
Note
The function control „ow and return in-
terchanged“ according to the VDI guidelines
2169 can only correctly detect and indicate
the error „0031 !FL/RE INTERCHANGED!”
if the collector sensor measures the tempera-
ture directly in the uid at the collector outlet.
If the collector sensor is not correctly placed,
a false message may occur.
Î Place the collector sensor directly in the
uid at the collector outlet or deactivate
the “ow and return interchanged” func-
tion control.
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