3 x Operation
Daikin RoCon
Daikin Control unit
008.1543999_00 – 03/2017 – EN
Operating instructions
21
The STL test can be carried out to check the STL function:
● Enter the technician code (see chap. 3.6.1).
After entering, the "Setup" level is displayed.
● Push the Exit button for at least 5 s.
The "Special Level" menu is displayed.
● Use the rotary button to select the "STL Test" program.
● Carry out the program by continuously pressing on the rotary
button.
"STL Test" is displayed on the display.
The integrated heat generator maximum temperature limit
is continuously bypassed and the heat generator contin
-
ues to operate at full load without limitation until the safety
temperature limitation is triggered.
All externally connected consumers are disconnected
from the heat generator on the water side (available mix
valves are closed). With the exception of the boiler pump,
all heating circuit and storage loading pumps are inactive.
● Release the rotary button.
The STL test is ended.
● If the STL test (safety shut-down with error code E1) is
successful:
After sufficient cooling down, the safety temperature limiter
(STL) must be manually unlocked to switch back to normal
heating operation. See chap. 7.1.3 and the installation and
operating instructions of the respective heat generator.
3.5.4 3-way switching valves reference travel
The positions of the two 3-way switching valves 3UVB1 and
3UV DHW in the Daikin GCU compact are controlled continu-
ously between their two basic settings for optimised energy utili-
sation (e.g. heating support function).
To ensure this function, the two 3-way switching valves are
always moved automatically to their home position (bypass - path
AB-A open) on the weekdays "Monday", "Wednesday" and
"Friday" at 11:00 am.
This function can take up to 5 minutes. It is programmed as
standard and cannot be changed.
3.6 Special system settings
The RoCon BF control unit is already basically configured for the
Daikin heat generator. However, it must still be adjusted during
commissioning for optionally connected accessories and the in
-
stallation environment.
The adjustment is carried out by setting the parameters in the
"Configuration" rotary switch setting .
The next lowest level can be accessed or the respective pa-
rameter directly accessed by navigation with the rotary button.
3.6.1 Access rights (technician code)
Certain settings in the control unit are limited by access rights. To
receive access to these parameters, the technician code must be
entered at the "Setup" level.
Figure 3-15 shows the basic procedure for entering the access
code. The expert company receives the technician code in a sep-
arate letter.
Fig. 3-15 Entering the access code
Configuration
Setup
System Configuration
Access Rights
User
Access Rights
Expert
Setup
Language
Date
Setup
Keylock Function
Access Rights
HZU
Access Rights Access Rights
Access Rights
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