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6720856749 (2016/03) CR50
6 | Shutdown / switching off
Set the date.
The display switches to the time setting.
Set the time.
The CR 50 is now set up as a controller and the display
automatically changes to the standard display. The heating
system and DHW heating are operating (continuous hot
water, heating according to the heating program).
The manual adaptation to the individual heating system can be
performed in the service menu.
Make the corresponding system settings, such as Control
type, Max. Suppl.T., PID charact., Opt. pump run, Frost
protect, Max. DHW temp
5 Shutdown / switching off
The user interface is powered via the BUS interface and is
always switched on. The system should only be switched off for
maintenance work, for example.
Disconnect power from the entire system and all BUS
nodes.
After a prolonged power failure or extended period of idleness,
the date and time may need to be reset. All other settings are
retained permanently.
6 Service menu
If the standard display is active, press and hold the menu
key for about three seconds until the service menu appears
in the main menu is displayed.
Press the selector to open the highlighted service menu .
Turn the selector to select a menu item or change the value
of a setting.
Press the selector to open the selected menu item, activate
the input field for a setting or confirm a setting.
Depending on the control device for the heat source and BUS
system employed, some menu items are displayed and cannot
be adjusted using the user interface.
Service menu overview Page 10.
6.1 System data menu
In this menu, monitor and individually reconfigure the entire
system with respect to the automatic settings.
0010005966-001
20.07.2011
20.07.2011
0010005967-001
Time of day
Time of day
0010008811-001
12:38
12:38
We
We
auto
auto
Menu item Control range: Function description
User interf. Controller: Use as a controller
HC assignment 1
Pump conn. Heat sources: Heating pump connected to
heat source
Heat. System High Temp | Low Temp.: Assign the heating
system to the heating circuit
Control type Room supply | Room output: Choose
the room control as either a flow
temperature control or output
control (output control only available with 2-
wire BUS/EMS 2-BUS).
Config. HC1 Hydraulic and electrical connection of
heating circuit 1 to heat source (only with
the EMS 2)
Own pump: Heating circuit pump electrically
connected to the heat source
P. after header: Low-loss header installed,
heating circuit pump connected to heat
source
DHW No: No DHW system installed
Yes, 3-wy vlv: Existing hot water system is
supplied via 3-way valve
Yes, pr. pump: Existing hot water system is
supplied via cylinder primary pump
LLH sensor No: No low-loss header installed
Yes, on appl.: Low-loss header installed,
temperature sensor connected to heat
source
6


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