Danfoss Icon Series, Installation Manual, Page: 5 / 102

© Danfoss | FEC | 2020.03
AN29434614196101-000401 | 088N2112 00 | 5
Installation Guide Danfoss Icon™ Master Controller 24V
EN
6.
Output selector keys
Used for assigning actuator outputs to a thermostat.
•
Connect only one actuator wire per output terminal.
• Assign as many outputs as you want to a thermostat.
Depending on Danfoss Icon™ Master Controller model, you will have 10 or 15 outputs available.
Cable terminals:
7.
Upper terminal row
For connection of 24 V thermal actuators max. one actuator per output terminal .
8.
Lower terminal row
For connection of 24 V thermostats in a wired system, or for additional 24 V wired thermostats in a
wireless system.
9. Upper cable strain relief bar
Installed as final step of wiring, tighten screws to ensure wire retention.
10. Lower cable strain relief bar
Clicks over thermostat cables to hold them in place. Top of this part also acts as cable holder for
actuator cables.
11.
Removable lid
Covers access to the 230 V section of Danfoss Icon™ Master Controller 24V. Remove the screw and
slide out to access 230 V terminals. This part can be replaced with the Expansion Module, if special
applications are necessary.
Connectors:
12. Radio Module connector (RJ 45)
Connect the Radio Module to this connector via cat. 5 patch cable (supplied with the Radio Module).
13. App Module connector (RJ 45)
Connect the App Module to this connector via cat. 5 patch cable (supplied with the APP Module).
14. Multilink 3-pole connector – for linking together multiple Master Controllers in a 24V system.
Only used in wired systems! Loose 3-pole male connector supplied with the product.
Installation
If wired installation
Note! Disconnect power before wiring!
For wiring of wired thermostats and actuators, please refer to the Quick Guide sections B and C. 24V Thermo-
stats can be wired either in BUS or Star configuration (pic. 5-6). The system is not polarity sensitive.
If BUS wiring (serial) (pic. 5):
A. Thermostat
B. max. 0,75 mm²
C. To Master Controller
D. Thermostat
If Star wiring (parallel) (pic. 6):
A. Thermostat
B. max. 1,5 mm²
If wireless installation
Note! Disconnect power before wiring!
Connect a Radio Module, code no. 088U1103.
The Radio Module is required, when wireless thermostats are installed. The radio module is supplied with a 2 m
patch cable. A longer cable (max. 15 m) can be used if necessary.
One Radio Module must be fitted (pic. 7) to each Danfoss Icon™ Master Controller 24V in systems with more
Master Controllers (pic. 11).
As a special feature, it is possible to include wired thermostats in a wireless system.
For installation of wireless thermostats and actuators, please refer to the Wireless Quick Guide sections B2, B3,
B4 and C1.
Optional installations
Installation of App Module, code no. 088U1101 (pic. 15)
The App Module is required, when app functionality is wanted. For inclusion (pic. 15) in a wireless network
(Wi-Fi), please refer to the App Module installation guide. In systems with more Danfoss Icon™ Master Control-
lers only one App Module is required, and it can be added to any of the Master Controllers.
Scheduling done via the App module will utilize adaptive learning as default. Adaptive learning calculates the
optimal heating startup time to ensure that the desired room temperature is reached at the scheduled time.
Wiring a pump
PWR1 output is intended for usage in installations where a circulation pump is present in the system. The PWR1
output has a live 230 V output (max. 100 W), which is activated when heat is demanded by at least one ther-
mostat. When no heat is demanded from any thermostats the PWR1 output will be turned off to save energy.
When heat is demanded the output will be activated with a delay of 180 sec. to prevent the pump from running
without being able to generate flow due to the delay on the actuators in the heating circuits.
Wiring a potential free relay (RELAY)
The potential free relay can be used e.g. to activate heat demand/production from a boiler.
It is recommended to use the potential free relay as heat demand signal for all boilers with appropriate inputs
available.
For boilers with 0-10 V modulation it is not possible to use the heat demand signal from the Danfoss Icon™
Master Controller 24V.
Please note that some combi-boilers may have hot water prioritization, which can cause heat production of
the system to be delayed.
Installation of Expansion Module, code no. 088U1100 (pic. 2.1)
Adding an Expansion module will add additional functionality such as supply temperature control or cooling
applications.
Note! Disconnect power before inserting the Expansion Module.
Slide of the cover and insert the Expansion Module. Follow the supplied instructions.
Note! If an Expansion Module is added to a system with multiple Master Controllers, it
must
be installed on the Sys-
tem Master.
Installation of a Floor Sensor for 24V thermostat,
code no. 088U1110
For installation of a floor sensor, please refer to instructions supplied with the thermostat.
Repeater, code no. 088U1102 (pic. 16)
Add a repeater in large buildings where added wireless range is needed. Set Master Controller to INSTALL
mode to add a repeater.
For more information, see the installation guide supplied with the Repeater.