© Danfoss | 2019.02 | 7
VI.GM.A2.02
CCR3+ Controller
ENGLISH
4. Installation
For easy access the CCR3+ Controller is installed in
the technical box on DIN rail 35 mm. Box with
DIN rail should be mounted in the wall (sub-
station or boiler room) as close as possible to the
heat source. DIN rail and box are not included. It is
recommended to install the standard 24 VDC
transformer in the same box as CCR3+ (not
supplied).
5. Switching the control on
6. Switching on
7. Types of Logins and Access
Before switching the controller on for the first
time, disconnect all cables and connect a 24 VDC
source to the disconnected power plug. Use a
voltmeter to measure the voltage on the power
cable plug before it is connected to the
controller.
If the voltage is correct:
1. Read the instructions before you operate the
controller
2. Disconnect all cables
3. Connect the power to the transformer (not
connected to CCR3+)
4. Turn the power to the transformer on
5. Verified currency – 24 VDC
6. Connect the cable from the transformer to the
CCR3+ Controller input
The LED diodes on device should blink at
start-up.
Before any plugs are connected to the
controllers, input and output connectors:
1. Set all parameters on the controller
2. Make sure that there is no external voltage on
the temperature sensor plugs
3. Make sure that the voltage on the relay
contacts is not too high (max. 24 VDC)
The transformer power depends on numbers of
actuators (number of risers in heating
installation). To select proper power transformer
please follow formula: 24 V 10VA (controller) + 7
VA*/per each actuator.
Example (building with 20 risers):
10VA (for controller) + 7 VA x 20 actuators = 150 V
When controller is connected to power, LED
indicator start to blink. The meaning of LED
status is:
Controller has a built in WEB Server App to
communicate with all devices with html
browsers via following communication
interfaces:
• Wi-Fi communication port
• LAN cable connection (TCP/IP port)
LED
Description
P (orange)
– Power inside controller (+5V)
Lights when DDC PCB is power on
D (white)
– Data transfer indicator for LAN
Blink when DDC is communicating by TCP/IP
S
(orange)
- Input power indicator (24VDC)
Lights when power supply PCB is working
BT (blue)
– Basic transmission indicator for Wi-Fi
Blink when DDC is communicating by WiFi
A (red)
– Alert status on I/O module
LED lights when/if: to low temp., broken sensor
O1..4
; 1-20 (green)
– Digital Output Status
Lights when Output is closed to 0V