Danfoss CCR2 Data sheet

Data sheet

Disinfection Process Control & Temperature Registration CCR2+ Control

Features

Fig. 1 CCR2+ Disinfection Process Control &

Temperature Registration

The CCR2+ is a controller used for optimising the thermal disinfection process in hot water systems with functions such as temperature registration and/or monitoring circulation hot water systems.

The CCR2+ can be applied independently, only for temperature registration in circulation hot water systems.

Thermal disinfection is one of the most effective physical methods for bacteria pasteurisation (Legionella pnemophila).

By optimising the thermal disinfection process, the energy consumption and the disinfection time are reduced.

By thermal disinfection the risk of bacteria contamination in hot water systems can be reduced significantly.

By temperature registration, the correct temperature level in the hot water circulation system can be controlled continuously and data can be stored for later reference.

Disinfection temperature and time can be adjusted:

• Disinfection temperatures from 50 °C to 78 °C;

• Disinfection time for the individual riser within in the range: minimum to maximum. Minimum required time is recommended based on Brundrett resources and related to temperature and is automatically limited by producer. It cannot be adjusted below and above the recommended values.

The CCR2+ incorporates LED status indicator, build in Web-Server App, Wi-Fi connection and LAN port, which allow the user to manually set and monitor measured parameters from the system on smart device or PC.

In addition, the CCR2+ also incorporates build in memory to store temperature data.

The system monitoring function is based on temperature registration and storage of data in the memory.

The storage rate (frequency of temperature sampling) can be adjusted by the user via the CCR2+ settings menu.

Data can be copied and processed in excel files (table, charts, graphs, etc.). All storage data are recorded based on special algorithms, which allow indication of genuine of stored data! The sampling rate can be defined from the menu within the range: minimum 1min. The sampling rate has significant influence on period of data storage.

From a technical point of view, the CCR2+ can control any number of risers due to the possibility of parallel and sequence connections.

One unit of the CCR2+ can control 20 risers equipped with thermo actuators type TWA-A and PT1000 sensors (S1 … S20), plus one PT 1000 sensor (S0) in the supply pipe. The S0 sensor is used for initiating the disinfection process (fig. 3) or for registrating the supply temperature (Fig. 2) (Fig. 4 wiring scheme: S0 input). The S0 sensor is included in the package.

Additional functions:

• LED status indicators

• Build in web server for acess via mobile devices or PC

• Alarm output;

• Pump protection function (cavitations in case of closing all valves);

• Indication of state of disinfection process realisation.

• System expansion via CCR+ Slave Unit

(+16 risers)

The CCR2+ power supply ~24 V (DC), 50 Hz and output control of actuators 24 V.

Installation: on standard DIN relay. Note: transformer is not included. Recommended transformer: 150 VA, 24 V DC.

It is possible to connect CCR2+ to BMS system via RS 485 in standard Fbus or ModBus RTU or IP Modbus. See the instructions for details.

Data sheet Disinfection Process Control & Temperature Registration

1278910 19 20

CCR2+ System expansion

The system can also be expanded. For systems up to 36 risers/loops CCR2+ system can be expanded. With CCR+ Slave Unit, connected to CCR2+ Controller (master), system can be expanded with additional 16 risers/loops: 20 (CCR2+) + 16 (CCR+ Slave). Very big systems (with more that 37) risers/loops can be expanded with several CCR2+ Controlers (with connected CCR+ Slave Unit on each master), which are connected (see instructions):

• by parallel connection CCR2+ (with Slave Unit) to another CCR2+ (with Slave Unit):

- with one S0 sensor or

- with individual S0 sensor for each CCR2+

(with Slave Unit);

• by sequence connection CCR2+ (with Slave Unit) to another CCR2+ (with Slave Unit):

- with one S0 sensor or

- with individual S0 sensor for each CCR2+

(with Slave Unit).

This function offers control and registration of temperatures in extensive installations with a big number of risers, e.g.: installation with 108 risers/loops require 3 CCR2+ Controlers, with connected CCR+ Slave Unit on each (3 x 20 + 3 x 16 = 108).

The type of combination after connection (see instruction of CCR2+) should be selected from the device menu settings. The correct combination of connection allows optimatisation of the total time required for the disinfection process. For thermal disinfection CCR2+ can work in two applications:

• As Independed control, (S0 remote sensor connected) No connection with heat source (boiler, substation, hot water tank, etc.) Not fully automatic process. The total disinfection time for the total installation should be specified by maintenance service, and after the disinfection process, the supply temperature should be reduced manually to comfort temperature.

• As Dependent control, (S0 remote sensor connected and additional connection with weather compensator (e.g. ECL Comfort), boiler control or hot water tank - in this case, thermal disinfection can be performed in a fully automatic way. Moreover, a second application is not required to specify the total disinfection time for total installation as the CCR2+ after finishing the thermal disinfection in the last riser automatically returns to comfort temperature by sending signal (from output O3) to weather or boiler control (free contact relay required).

Applications

Fig. 2 Scheme of installation for temperature registration independent system (only sensor S0 needed).

MTCV

S2 S7 S8 S9 S10 S19 S20

TWA

MTCV MTCV MTCV MTCV MTCV MTCV MTCV

TWA

24 VDC

V10 TWA

V19 TWA

V20 TWA

2 | VD.D3.K1.02 © Danfoss | 2018.10

Data sheet Disinfection Process Control & Temperature Registration

1278910 19 20

Applications (continuous)

ECL...

* ESMC s ensor S0 is includedwith CCR2+

Controller

Ordering

S10

S19

TWA

MTCV

MTCV MTCV MTCV MTCV MTCV MTCV

TWA

24 VDC

V10 TWA

TWA

S20

V19 TWA

MTCV

Fig. 3 Scheme of installation for disinfection and registration temperature

- dependent system (sensor S0 and connection to weather or another control needed)

Inclusive in the box CCR2+ Controller, 1 pcs ESMC sensor

Typ e Designation Supply voltage Actuator type/nos. Code No.

CCR2+ Controller

Disinfection Process Control Temperature registration

24 V DC NC / 20 003 Z3851

Accessory

Typ e Designation

Voltage

(currentless)

Comments

TWA-A Thermal actuators 24 V NC VD.SA.P4.02 088H3110

TWA-A / ESMB

Adapter

Socket

Thermal actuators with

temperature sensors ESMB

Adapter for T WA-A actuators

for MTCV

Socket for temperature sensor to

MTCV

24 V NC VD.SA.P4.02 003 Z1043

for valve

DN15 / DN20

- for type ESMB VD.57.Y5.02 003Z102 4

ESMB Universal temperature sensor , PT1000 - with 2.5 m cable VD.74.I7.02 0 87B 1184

ESMC Surface Sensor, PT1000 - with 2 m cable VD.74.I7.02 08 7N 0011

CCR+ Slave Unit system expansion (add 16 risers) 24 V DC - - 003Z3852

Data she et

number

Code No.

VD.57.Y5.02 003 Z1022

V20 TWA

Data sheet Disinfection Process Control & Temperature Registration

Technical data

To select proper p ower transformer please follo w formula: 24 V 10VA (controller) + 7 VA*/per each actuator

Temperature sensor (S0, S1-S20 / S21-36) Pt1000, S0- t ype ESMC / ESM11, S1 … S36 – type ESMB

Temperature range (registration) –20 °C … +120 °C

Measuring accuracy ± 0,1 K

Inputs: B1, B2 and B3 Free contact (5 V 1 mA)

Number of control valves (risers) 20 basic, additional 16 with system ex tension via CCR+ Slave Unit

Output signal to actuators 24 VDC max. 1 A

Alarm signal output 24 VDC max. 1 A

Relay output 0 … 24 DC max. 1 A

Type of memor y Build-In

Capacit y of memory 8 GB

Timer: Real time clock Built-in batter y - service life 10 years

- Wi-Fi (communication port only)

Communication interfaces

Default IP settings

Ambient temperature 0 … 50 °C

Transport temperature –10 … +60 °C

IP rating IP 20,

Power supply 24 VDC

Power consumption (Master controller only)

Power consumption (Slave Unit only)

Weight 0.3 kg

Installation DIN rail 35 mm

- TPC/IP port (LAN cable connection)

- Modbus RS 485 RTU

- IP Modbus (L AN cable connection)

- Default L AN IP adress (static): 192.168.1.100

- Default WiFi acess IP adress (static): 192.168.1.10

- IP address mask: 255.255.255.0

- Gateway adress: 192.168.1.1

- DNS ad dress: 192 .168.1.1

- CCR name: ccrplus

- default password: admin1234

10 VA

2 VA

Function After installation all settings should be carried

out on the CCR2+ according to the instructions in the device settings menu. User need to connect to CCR2+ with smarth device or PC.

Temperature registration

The CCR2+ can be used to record temperatures in a hot water circulation system. Temperatures are measured by PT 1000 temperature sensors installed in MTCV valves. If the CCR2+ is used solely for recording temperatures, it is not necessary to install any actuators on the MTCV valves.

Sampling time (data collection) intervals can be adjusted using the control’s keypad from 1 minute.

Data are stored on internal memory. The data collecting period depends strongly on and the sampling interval.

Data are saved in *.csv format and can be downloaded any time in Data menu.

The data can be visualised in spreadsheet and graphs.

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