Expert area
Part 2: Overview of display values and settings
18
Expert area
It is only possible to change the fitter set values after
entering the code number.
E
If these values are set incorrectly, they may cause
malfunctions or damage to the system.
Code-No input
1.Set number
F button [==>]
next number
2.Set number
F button [==>]
next number
3.Set number
F button [==>]
next number
4.Set number
Use the F button [OK] to save the code number
System configuration
Configuration
Designation Value
range
Standard
IV
Change code
0000 – 9999
0000
BUS ID 1
(00), 01 – 15
01
BUS ID 2
(00), 01 – 15
02
BUS Termination
Off/On
On
eBUS Supply
Off/On
On
Time Master
Off/On
Off
Plant select
----, 01 – 10
----
HS1 Type
00 – 06
03
HS1 BUS
00 – 05
00
HS2 Type
00 – 22
00
Storage HS2
00 – 03
00
Buffer type
00, 01, 02
00
Cool Operation
Off/On
Off
F15 Function
00 – 05
00
Sensors
1k / 5k Sensors
5k Sens.
Use the F button [End] to exit the level
Change code
Input of a new code number (It is essential to remember
the new code number after adjustment).
BUS ID 1 / 2
(Heating circuit number)
The heating circuits are sequentially numbered starting
with "01". heating circuit numbers must not be assigned
twice. For replacement controllers however, please enter
exactly the same heating circuit numbers as the replaced
controller.
BUS Termination
(bus termination resistor)
„A bus termination resistor has to be set once in a bus
system. (HG controller or cascade controller). When
installing with a CoCo1, set this parameter to “off”.
Off => termination resistor is not set
On => termination resistor is set
eBUS Supply
(supply for eBUS)
Switching the eBUS supply on / off in relation to
connected devices (power supply balance).
Time Master
(Only without or Time Master in system)
Off = no time master, each heating circuit has its own
time
On = controller is time master, all controllers and remote
controls take over the time settings of this controller.
!
No more than 1 Time Master is permitted in the
system!
Plant Select (selecting basic controller functions)
This set value can be used to preset the other values of
the start-up level
(see also installation description on page 40).
When the installation set value is selected, this also
displays "----" = no change to preset => values retain their
previously defined status
(values on delivery: Merlin 0634 2-stage burner; hot water
preparation two mixed heating circuits).
01 = [4034] => cascade controller for modulating boiler
02 = [4834] => cascade controller for switching boiler
03 = [3611] => 0-10V controller
04 = [0634] => Standard controller with 2-stage HS
05 = 2HS controller => 2 HS cascade switched via relay
06 = [6644] => buffer and pellet controller with solar
function
07 = [1144] => Mixer valve extension
08 = not yet assigned
09 = [0321] => Cooling function in heating circuit return
10 = [0321] => Central cooling function and solar
integration
HS1 Type
(first heat generator type)
00 = No heat generator (Mixer valve extension)
01 = Single stage HS switching
02 = Single stage modulating
03 = 2-stage HS switching (second stage via A7)
04 = Two individual HS switching (second HS via A7)
05 = Multistage switching (cascade via BUS)
06 = Multistage modulating (cascade via BUS)
HS1 BUS
(connection for HS)
00 = Relay => Standard (switching HS)
01 = CAN-BUS => Standard (cascade switching)
02 = eBUS => HS without temperature controller
=> Preset modulation depth
=> Standard (cascade modulating)
03 = eBUS => HS with temperature controller
=> Preset desired temperature
[not suitable for cascade]
04 = 0-10V Presetting of the desired temperature
[T-HS
DES]
only for HS1 Type = 01, 02 or 03
Burner relays are controlled in parallel
Sensor KF [F8] must be connected
05 = 0-10V Preset modulation depth only for
HS1 Type = 02