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.

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Data sheet	Disinfection Process Control & Temperature Registration

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

1	2	7	8	9	10	19	20
S0
S1	S2	S7	S8	S9	S10	S19	S20
V1	V2	V7	V8	V9	V10	V19	V20
TWA	TWA	TWA	TWA	TWA	TWA	TWA	TWA
MTCV	MTCV	MTCV	MTCV	MTCV	MTCV	MTCV	MTCV
					24 VDC

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

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Data sheet	Disinfection Process Control & Temperature Registration

Applications (continuous)

*ESMC sensor S0 is includedwith CCR2+ Controller

	ECL...
	S
M
	S
	S
	S
M	S
	S

1

2

7

8

9

10

19

20

S1	S2	S7	S8	S9	S10	S19		S20
V1	V2	V7	V8	V9		V10	V19	V20
TWA	TWA	TWA	TWA	TWA		TWA	TWA	TWA
MTCV	MTCV	MTCV	MTCV	MTCV	MTCV	MTCV		MTCV

24 VDC

Fig. 3 Scheme of installation for disinfection and registration temperature

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

Ordering	Inclusive in the box CCR2+ Controller, 1 pcs ESMC sensor
	Type	Designation	Supply voltage	Actuator type/nos.	Code No.
	CCR2+ Controller	Disinfection Process Control	24 V DC	NC / 20	003Z3851
		Temperature registration

Accessory

	Type	Designation	Voltage	Comments	Data sheet	Code No.
			(currentless)		number
	TWA-A	Thermal actuators	24 V	NC	VD.SA.P4.02	088H3110
	TWA-A / ESMB	Thermal actuators with	24 V	NC	VD.SA.P4.02	003Z1043
		temperature sensors ESMB
	Adapter	Adapter for TWA-A actuators	-	for valve	VD.57.Y5.02	003Z1022
		for MTCV		DN15 / DN20
	Socket	Socket for temperature sensor to	-	for type ESMB	VD.57.Y5.02	003Z1024
		MTCV
	ESMB	Universal temperature sensor , PT1000	-	with 2.5 m cable	VD.74.I7.02	087B1184
	ESMC	Surface Sensor, PT1000	-	with 2 m cable	VD.74.I7.02	087N0011
	CCR+ Slave Unit	system expansion (add 16 risers)	24 V DC	-	-	003Z3852

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Data sheet	Disinfection Process Control & Temperature Registration

Technical data

1)To select proper power transformer please follow formula: 24 V 10VA (controller) + 7 VA*/per each actuator

	Temperature sensor (S0, S1-S20 / S21-36)	Pt1000, S0type 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 extension 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 memory	Build-In
	Capacity of memory	8 GB
	Timer: Real time clock	Built-in battery - service life 10 years
		- Wi-Fi (communication port only)
	Communication interfaces	- TPC/IP port (LAN cable connection)
		- Modbus RS485 RTU
		- IP Modbus (LAN cable connection)
		- Default LAN IP adress (static): 192.168.1.100
		- Default WiFi acess IP adress (static): 192.168.1.10
		- IP address mask: 255.255.255.0
	Default IP settings	- Gateway adress: 192.168.1.1
		- DNS address: 192.168.1.1
		- CCR name: ccrplus
		- default password: admin1234
	Ambient temperature	0 … 50 °C
	Transport temperature	–10 … +60 °C
	IP rating	IP 20,
	Power supply	24 VDC
	Power consumption (Master controller only) 1)	10 VA
	Power consumption (Slave Unit only) 1)	2 VA
	Weight	0.3 kg
	Installation	DIN rail 35 mm

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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