Danfoss ECL Comfort 210 Instructions Manual Download Page 43

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Instructions

ECL Comfort 210 / 310, communication description

ECL Comfort Parameter

Description

PNU

Access

Scale

Hol_End_Month_P4

10726

Hol_End_Year_P4

10727

Hol_Status_P5

Holiday program 5

10728

Hol_Start_Day_P5

10729

Hol_Start_Month_P5

10730

Hol_Start_Year_P5

10731

Hol_End_Day_P5

10732

Hol_End_Month_P5

10733

Hol_End_Year_P5

10734

Hol_Status_P6

Holiday program 6

10735

Hol_Start_Day_P6

10736

Hol_Start_Month_P6

10737

Hol_Start_Year_P6

10738

Hol_End_Day_P6

10739

Hol_End_Month_P6

10740

Hol_End_Year_P6

10741

Hol_Status_P7

Holiday program 7

10742

Hol_Start_Day_P7

10743

Hol_Start_Month_P7

10744

Hol_Start_Year_P7

10745

Hol_End_Day_P7

10746

Hol_End_Month_P7

10747

Hol_End_Year_P7

10748

Hol_Status_P8

Holiday program 8

10749

Hol_Start_Day_P8

10750

Hol_Start_Month_P8

10751

Hol_Start_Year_P8

10752

Hol_End_Day_P8

10753

Hol_End_Month_P8

10754

Hol_End_Year_P8

10755

Hol_Status_P9

Holiday program 9

10756

Hol_Start_Day_P9

10757

Hol_Start_Month_P9

10758

Hol_Start_Year_P9

10759

Hol_End_Day_P9

10760

Hol_End_Month_P9

10761

Hol_End_Year_P9

10762

Hol_Status_P10

Holiday prog. 10

10763

Hol_Start_Day_P10

10764

Hol_Start_Month_P10

10765

Hol_Start_Year_P10

10766

Hol_End_Day_P10

10767

Hol_End_Month_P10

10768

Hol_End_Year_P10

10769

Hol_Status_P11

Holiday prog. 11

10770

Hol_Start_Day_P11

10771

Hol_Start_Month_P11

10772

Hol_Start_Year_P11

10773

Hol_End_Day_P11

10774

Hol_End_Month_P11

10775

Hol_End_Year_P11

10776

Danfoss District Energy

VI.LG.V3.02

DEN-SMT/DK

Summary of Contents for ECL Comfort 210

Page 1: ...chedule adjustment 14 6 8 Anti bacteria 15 6 9 Holiday 16 6 10 Alarm 17 6 11 Energy meter data M bus from version 1 10 17 6 12 System information parameters 19 6 13 System commands 21 6 14 Output status Manual output status and Output override 21 6 15 Configurable input 22 6 16 Unit and pulse 24 7 Modbus protocol 25 7 1 Function codes 25 7 2 Broadcasts 27 7 3 Error codes 27 7 4 Modbus TCP 27 8 ECL...

Page 2: ...es built into the ECL 210 and ECL 310 product family The initial sections describe the main communication interfaces and their specific properties The following describes Modbus specific implementations The last section describes the communication details of the ECL 485 master slave bus Danfoss District Energy VI LG V3 02 DEN SMT DK 2 ...

Page 3: ...nd an ECL 485 bus for master slave communication between ECL 210 310 products only Figure 2 1 Various communication interfaces for the ECL 210 310 products The ECL 210 310 product family includes ECL Comfort 210 controller ECL Comfort 310 controller ECA 30 room unit ECA 31 room unit with humidity sensor ECA 32 internal extension module ECA 33 external extension module The ECL 210 310 product famil...

Page 4: ...can be used It is necessary to install the ECL USB driver on the PC before it is possible to communicate with the ECL controller via USB The driver is available as a free download from www danfoss com USB cable SCADA system Connected via Danfoss Modbus OPC server Figure3 1 USB connection example 3 1 USB driver installation Connect the ECL to the PC When Windows asks for a driver choose the appropr...

Page 5: ...4 RS 485 Modbus The figure illustrates what a Modbus network might look like TCP IP USB or RS 232 to RS 485 Modbus ECL Comfort 310 as of version 1 10 M Bus connection Heat meter Figure 4 1 Modbus network overview Danfoss District Energy VI LG V3 02 DEN SMT DK 5 ...

Page 6: ... device All devices in the network must use the same communication settings i e multiple communication settings are not allowed The module can operate with 19200 or 38400 default baud rate 1 start bit 8 data bits even parity 1 stop bit in total 11 bits For specific details please consult the specifications Modbus Application Protocol V1 1a Modbus over Serial Line Specification Implementation guide...

Page 7: ...sable network layouts 4 1 2 Installing a Modbus network It is recommended that all of the devices on a network are installed sequentially to ensure that they will not conflict with each other If two or more devices have the same Modbus address they will conflict resulting in loss of communication to that address Danfoss District Energy VI LG V3 02 DEN SMT DK 7 ...

Page 8: ...control restriction and it is therefore strongly advised to only use it on a secure local network where a router firewall provides security to other local networks or the internet In most routers it is possible to set simple access restrictions for which kind of internet traffic that are allowed to reach the ECL 310 Modbus TCP communication is not affected by the removal of the key from the ECL co...

Page 9: ...p www dmoz org Computers Internet Protocols DNS DNS_Providers Dynamic_DNS 5 4 Ethernet network example The following figure shows a more complex example of a possible network installation The example also shows the ECL 485 installation for master slave function The installation is separated into two different groupings which could represent two different building blocks with a single centralized I...

Page 10: ...02 1 2 3 4 port 504 2 ECA 1 HMI A A ECA 2 HMI B B 2 ECL4 192 168 1 110 port 502 1 2 3 4 port 505 4 2 ECL 5 192 168 1 111 port 502 1 2 3 4 port 506 15 ECA 3 HMI A A In the example only the 4 ECL controllers that are connected to the router are accessible from the Internet Be sure to select ports that do not interfere with other services or firewalls running on the network or on the remote connectio...

Page 11: ...in accordance with their name in the ECL Comfort A partial list of parameters can be found in the appendix Figure 6 1 Display parameter number examples 6 1 Modbus address The valid Modbus address range is 1 247 The default Modbus address is 1 Address 254 is used as service address and may only be used when one ECL is connected e g USB service port or Modbus TCP The Modbus address can be changed by...

Page 12: ...nformation is available All output will follow the ECL manual output setting when in manual mode The operating status will be read as 0 setback if the operating mode is larger than 3 Table 6 1 Operating mode Code Manual operation 0 Scheduled operation 1 Constant comfort temperature 2 Constant setback temperature 3 Frost protection standby 4 Standby and frost protection modes are not available in a...

Page 13: ...arameter PNU Hour 0 23 64045 Minute 0 59 64046 Day 1 31 64047 Month 1 12 64048 Year 2009 2099 64049 Automatic summer time 0 1 10198 6 6 1 Rules for setting time The valid date range is from 01 01 2009 to 31 12 2099 using the Gregorian calendar When a new time is set the seconds are internally reset to 0 in the controller It is not possible to externally set seconds If an attempt is made to set an ...

Page 14: ... the last Sunday in October Automatic summer time is enabled by writing 1 to address 10198 and disabled by writing 0 to the same address 6 7 Rules for schedule adjustment The ECL Comfort divides the schedules into 7 days 1 7 each day consisting of 48 periods lasting 30 minutes 1 The periods must be entered in chronological order i e P1 P2 P3 2 Start and stop values must be in the range 0 30 100 13...

Page 15: ...y Saturday Friday Thursday Wednesday Tuesday and Monday Each day corresponds to a bit in the day setting so they can be combined together to give a binary value for the whole week Table 6 6 shows some examples of how the days can be combined and gives the corresponding binary and decimal values Table 6 7 gives the addresses for the anti bacteria settings Table 6 6 Value examples for the day settin...

Page 16: ...ed depending on the application See the application instructions for information about which holiday schedules belong to the specific circuits Table 6 8 Addresses for holiday schedules Mode Start day Start month Start year End day End month End year Schedule P1 10700 10701 10702 10703 10704 10705 10706 Schedule P2 10707 10708 10709 10710 10711 10712 10713 Schedule P3 10714 10715 10716 10717 10718 ...

Page 17: ...used for M bus communication Use of a battery supplied energy meter will normally shorten the battery life time Consult the specific manufacturer for details about battery life time and the allowed data exchange rate M bus configuration PNU Description 5997 M bus Baud rate 0 300 default 1 600 2 1200 3 2400 5998 M bus command request 0 None 1 Init re initialization 2 Scan for energy meter 5999 M bu...

Page 18: ... 3 Generic large data set large units 2 Scan time in seconds 60 3 4 ID Serial 5 Reserved 6 Flow temp 0 01 C 7 Return temp 0 01 C 8 9 Flow 0 1 l h 10 11 Power 0 1 kW 12 13 Acc Volume 0 1 m3 14 15 Acc Energy 0 1 kWh 49 Reserved 0 When two PNU are used the first contains the high word information and the last the low word information Example Energy meter 3 Flow temperature PNU 6100 6 6106 Danfoss Dis...

Page 19: ...to end automatically this takes about 12 minutes Adjust the type if needed Adjust the scan time if needed When an energy meter address or type is changed the M bus performs a re initialization where M bus values are reset Values will appear again when the state is in IDLE ECL display examples 6 12 System information parameters The system information parameters include information about types and v...

Page 20: ...NU 2062 and application version can be read on PNU 2063 The application version consists of a major number and a minor number The minor number is usually not used because it is only for very minor changes in the application If an error has been corrected or a new setting has been added to the application then it will be the major number that is changed The minor number is only changed if cosmetic ...

Page 21: ...131 Software 2132 Hardware 2133 Code no type 2134 4th extension reserved Code no 2135 6 13 System commands PNU 1 System command Value Command Comment 2 Reset internal ECL log Also reset during application installation PNU 2097 Wink display back light in seconds Write 0 to abort active wink If an ECA 30 31 is connected to the ECL the ECA will also wink 6 14 Output status Manual output status and Ou...

Page 22: ...can therefore not be relied upon to show the actual status of the output Output override can also be used to control output that are not used in a specific application and those output will therefore not be overruled if the ECL is in manual mode Output override can be set in PNU 4060 4071 ECL 310 Triac 1 Triac 6 relay 1 relay 6 PNU 4072 4075 ECA 32 relay 1 relay 4 Values are formatted equal to man...

Page 23: ...nstalled more sensors are available Sensor input S13 S14 are configurable so that they can be connected to a Pt 1000 temperature sensor or a 0 10 V digital input depending on application Input S17 S18 are configurable so that they can be connected to a Pt1000 temperature sensor a 0 10 V digital input a dry contact or a pulse 200 Hz input depending on application To set a sensor input to a specific...

Page 24: ... allow the input configuration to be changed 6 16 Unit and pulse The unit setting PNU 1X115 is a special setting which depends on the value of the pulse setting PNU 1X114 See in the table below what the unit value means depending on the pulse value Pulse 0 Pulse 0 Unit 0 L h mL L h Unit 1 L h L L h Unit 2 m3 h mL m3 h Unit 3 m3 h L m3 h Unit 4 kW Wh kW Unit 5 kW kWh kW Unit 6 MW kWh MW Unit 7 MW M...

Page 25: ... read only parameter 0x03 This function is used to read the value of an ECL Comfort read only parameter number Values are always returned as integer values and must be scaled according to the parameter definition Requesting a quantity of more than 123 parameters in sequence gives an error response Requesting non existing parameter number s will give an error response Request Function code 1 byte 0...

Page 26: ...st response is Modbus compliant reading a sequence of parameters Read input register 7 1 1 3 Write parameter number 0x06 This function is used to write a new setting value to an ECL Comfort parameter number Values must be written as integer values and must be scaled according to the parameter definition Attempts to write a value outside the valid range will give an error response The minimum and m...

Page 27: ...c details please consult the specifications Modbus Application Protocol V1 1a Modbus over Serial Line Specification Implementation guide V1 0 both of which can be found on http www Modbus org 7 4 Modbus TCP The ECL 310 supports Modbus over TCP connections so that it is possible to send and receive Modbus commands over an Ethernet network The Modbus traffic must be sent to port 502 Danfoss District...

Page 28: ...work Using the same address multiple times will cause malfunction It is recommended that all of the devices are installed sequentially to ensure that they will not conflict with each other Address 15 is reserved for the master controller Addresses 1 9 are reserved for slave controllers Address 0 is reserved for listening slaves Listening slaves can only listen for master broadcasts and cannot broa...

Page 29: ...power to room units one by one a Check that the slave and ECL addresses are as intended b Copy application if needed from controller 4 Turn on power to the slave controller with the lowest address a If the controller is without HMI type B the ECL must be configured separately b If necessary install application and make sure the set ECL 485 address Repeat step 4 until all controllers are installed ...

Page 30: ...ns Description SW Software HW Hardware HMI Human Machine Interface ECL ECL 210 or ECL 310 B type ECL 210B or ECL 310B ECL without HMI display and dial ECA ECA 30 Room unit module Room Unit ECA 30 module SCADA Supervisory Control and Data Acquisition common name for Modbus network solutions PNU Parameter Number is referring to the Modbus register address Danfoss District Energy VI LG V3 02 DEN SMT ...

Page 31: ...gy meters PNU offset Type 0 Type 1 0 Address Address 1 Type Type 2 Scan time Scan time 3 ID Serial ID Serial 4 low part low part 5 Reserved Reserved 6 Flow temp 0 01 C Flow temp 0 01 C 7 Return temp 0 01 C Return temp 0 01 C 8 Flow 0 1 l h Flow 0 1 l h 9 low low 10 Power 0 1 kW Power 0 1 kW 11 low low 12 Acc Volume 0 1 m3 Acc Volume 0 1 m3 13 low low 14 Acc Energy 0 1 kWh Acc Energy 0 1 MWh 15 low...

Page 32: ...wer 0 1 kW Power 0 1 kW 11 low low 12 Acc Volume 0 1 m3 Acc Volume 0 1 m3 13 low low 14 Acc Energy 0 1 kWh Acc Energy 0 1 MWh 15 low low 16 Tariff1 Acc Energy 0 1 kWh Tariff1 Acc Energy 0 1 MWh 17 low low 18 Tariff2 Acc Energy 0 1 kWh Tariff2 Acc Energy 0 1 MWh 19 low low 20 Up time d Up time d 21 Current time m bus defined structure Current time m bus defined structure 22 low low 23 Error status ...

Page 33: ...and extra traffic generated The errors might be caused by EMC or other conditions and it is important to reserve some bandwidth for error handling Data logging Logging of temperature etc in a database is a function which typically is non critical in a heating system This function must normally run all the time in the background It is not recommended to include parameters such as set points and oth...

Page 34: ...ands before a response is received or the timeout expires In a Modbus network it is not possible to send commands queries to different devices at the same time except broadcast One command query response must be completed before the next can be started It is necessary to think about the roundtrip time when designing the network Larger networks will inherently have larger roundtrip times If multipl...

Page 35: ...s 38 IP adr 1 278 IP adr 2 279 IP adr 3 280 IP adr 4 281 Net mask 1 286 Net mask 2 287 Net mask 3 288 Net mask 4 289 Gateway adr 1 282 Gateway adr 2 283 Gateway adr 3 284 Gateway adr 4 285 Alarm field 1 Sum alarms 1 16 1024 Alarm field 2 Sum alarms 17 32 1025 Alarm Context 01 1040 Alarm Context 02 1041 Alarm Context 03 1042 Alarm Context 04 1043 Alarm Context 05 1044 Alarm Context 06 1045 Alarm Co...

Page 36: ... 32 1071 DEN PNU Area ECL485 Bus address 2048 Modbus Bias 2049 Language 2050 Application info Application prefix 2060 Application type number 2061 Application type sub number 2062 Application version 2063 Res for further PNU s e g App sales number Wink 2097 ECL Sales number type 2098 ECL production date 2099 4 Extension Device x info Serial High 2100 Serial Low 2101 SW version 2102 HW version 2103...

Page 37: ... circuit X period 2 start Thursday P2 ON 3142 R W Schedule Thursday circuit X period 2 stop Thursday P2 OFF 3143 R W Schedule Thursday circuit X period 3 start Thursday P3 ON 3144 R W Schedule Thursday circuit X period 3 stop Thursday P3 OFF 3145 R W Schedule Friday circuit X period 1 start Friday P1 ON 3150 R W Schedule Friday circuit X period 1 stop Friday P1 OFF 3151 R W Schedule Friday circuit...

Page 38: ...atus ECA32 AO1 4036 Manual status ECA32 AO2 4037 Manual status ECA32 AO3 4038 Manual values reserve start 4040 R Manual value ECA32 AO1 Manual value ECA32 AO1 4056 Manual value ECA32 AO1 4057 4058 Manual values reserve end 4059 R Override status Triac 1 4060 RW Override status Triac 2 4061 RW Override status Triac 3 4062 RW Override status Triac 4 4063 RW Override status Triac 5 4064 RW Override s...

Page 39: ...13 4106 ECA 32 Config type S14 4107 ECA 32 Config type S15 4108 ECA 32 Config type S16 4109 ECA 32 Config type S17 Pulse frequency 4110 ECA 32 Config type S18 Pulse frequency 4111 Config option S7 4120 Config option S8 4121 Config option S9 4122 Config option S10 4123 Config option S11 4124 Config option S12 4125 ECA 32 Config option S13 4126 ECA 32 Config option S14 4127 ECA 32 Config option S15 ...

Page 40: ...rial 6003 low part 6004 Reserved 6005 Flow temperature 6006 Return temperature 6007 Flow 6008 low part 6009 Power 6010 low part 6011 Accumulated Volume 6012 low part 6013 Accumulated Energy 6014 low part 6015 Dynamic part Last pnu 6049 M bus Energy meter 2 6050 M bus Energy meter 2 6100 M bus Energy meter 2 6150 M bus Energy meter 2 6200 Last pnu 6249 Daylight saving time changeover 10198 Danfoss ...

Page 41: ...or 13 10213 2 ECA30 room A res 10214 ECA30 room A humidity raw sensor 15 10215 ECA30 room B Raw sensor 13 10216 ECA30 room B res 10217 ECA30 room B humidity raw sensor 15 10218 ECA32 S13 10219 ECA32 S14 10220 ECA32 S15 10221 ECA32 S16 10222 ECA32 S17 PF 10223 ECA32 S18 PF 10224 Res future raw sensor Res future raw sensor Makeup_Number _Of_Pumps Make up water 10326 Scada Outdoor temperature 10400 2...

Page 42: ...17xx 127xx 137xx Hol_Status_P1 Holiday program 1 10700 Hol_Start_Day_P1 10701 Hol_Start_Month_P1 10702 Hol_Start_Year_P1 10703 Hol_End_Day_P1 10704 Hol_End_Month_P1 10705 Hol_End_Year_P1 10706 Hol_Status_P2 Holiday program 2 10707 Hol_Start_Day_P2 10708 Hol_Start_Month_P2 10709 Hol_Start_Year_P2 10710 Hol_End_Day_P2 10711 Hol_End_Month_P2 10712 Hol_End_Year_P2 10713 Hol_Status_P3 Holiday program 3...

Page 43: ...nd_Day_P7 10746 Hol_End_Month_P7 10747 Hol_End_Year_P7 10748 Hol_Status_P8 Holiday program 8 10749 Hol_Start_Day_P8 10750 Hol_Start_Month_P8 10751 Hol_Start_Year_P8 10752 Hol_End_Day_P8 10753 Hol_End_Month_P8 10754 Hol_End_Year_P8 10755 Hol_Status_P9 Holiday program 9 10756 Hol_Start_Day_P9 10757 Hol_Start_Month_P9 10758 Hol_Start_Year_P9 10759 Hol_End_Day_P9 10760 Hol_End_Month_P9 10761 Hol_End_Y...

Page 44: ...d_Month_P14 10796 Hol_End_Year_P14 10797 Hol_Status_P15 Holiday prog 15 10798 Hol_Start_Day_P15 10799 Hol_Start_Month_P15 10800 Hol_Start_Year_P15 10801 Hol_End_Day_P15 10802 Hol_End_Month_P15 10803 Hol_End_Year_P15 10804 Hol_Status_P16 Holiday prog 16 10805 Hol_Start_Day_P16 10806 Hol_Start_Month_P16 10807 Hol_Start_Year_P16 10808 Hol_End_Day_P16 10809 Hol_End_Month_P16 10810 Hol_End_Year_P16 108...

Page 45: ...y_P20 10837 Hol_End_Month_P20 10838 Hol_End_Year_P20 10839 ECA addr 11010 Auto saving 11011 Boost 11012 Ramp 11013 Optimizer 11014 Adapt time 11015 Master slave demand 11017 Based on 11020 Total stop 11021 P exercise 11022 M exercise 11023 Actuator 11024 Pre stop 11026 Limit 11030 High T out X1 11031 Low limit Y1 11032 Low T out X2 11033 High limit Y2 11034 Infl max 11035 Infl min 11036 Adapt time...

Page 46: ...y 11080 Wind Filter const 11081 External_Setpoint 11084 Priority 11085 Standby T Cool application 11092 Frost pr T Heat application 11093 Start_Puls 11094 Stop_Puls 11095 PI_Tn_Saving 11096 Sensor_Saving 11097 Wind speed 11098 Wind_Setpoint 11099 S1 T filter 11100 Ext desired 11101 Flow_Energy_Input_Type 11109 Flow_Energy_actual 11110 Flow_Energy_Limit 11111 Flow_Energy_Intr gr 11112 Flow_Energy_F...

Page 47: ...183 Xp 11184 Tn 11185 M run 11186 Nz 11187 Min act time 11189 Circuit 1 sensor values S1 sensor 11201 R 10 S2 sensor 11202 R 10 S3 sensor 11203 R 10 S4 sensor 11204 R 10 S5 sensor 11205 R 10 S6 sensor 11206 R 10 S7 sensor 11207 R 10 S8 sensor 11208 R 10 S9 sensor 11209 R 10 S10 sensor 11210 R 10 S1 sensor 1 reference 11251 R 10 Des room T 11252 Des flow T 11253 S4 sensor 4 reference 11254 R 10 S5 ...

Page 48: ...21 Makeup_Pressure Diff Make up water 11322 Makeup_Time_Out Make up water 11323 Alarm_Status_Clear_Makeup Make up water 11324 Wait_Open_Valve Make up water 11325 Makeup_Number _Of_Pumps Make up water 11326 Makeup_Input_Type Make up water 11327 H Curve point Y1 11400 H Curve point Y2 11401 H Curve point Y3 11402 H Curve point Y4 11403 H Curve point Y5 11404 H Curve point Y6 11405 H Curve point X1 1...

Page 49: ...t time 12045 Master slave Pump demand 12050 Valve or pump function 12051 DHW prior 12052 Primary secondary placed 12053 Continue regulation 12054 DHW Circulation Priority 12055 Flow T adapt time 12067 Flow_Switch 12069 Circulation P frost T 12076 P frost T 12077 P heat T 12078 External_Setpoint 12084 Priority 12085 Standby T Cool application 12092 Frost pr T Heat application 12093 Start_Puls 12094...

Page 50: ...9 Day_Anti_Bact 12122 Start_Anti_Bact 12123 Duration_Anti_Bact 12124 Desired_Anti_Bact 12125 Xp_upper high primary temp 12129 Xp_Upper_temp 12130 Xp_Lower_temp 12131 Xp_Curve_value 12135 Ext input 12141 Ext mode 12142 Alarm Clear 12146 Upper difference 12147 Lower difference 12148 Delay 12149 Cut off temp 12150 Max DHW load temperature 12152 Start difference HWS 12154 Stop difference HWS 12155 Aut...

Page 51: ...Diff Make up water 12322 Makeup_Time_Out Make up water 12323 Alarm_Status_Clear_Makeup Make up water 12324 Wait_Open_Valve Make up water 12325 Makeup_Number _Of_Pumps Make up water 12326 Makeup_Input_Type Make up water 12327 H Curve point Y1 12400 H Curve point Y2 12401 H Curve point Y3 12402 H Curve point Y4 12403 H Curve point Y5 12404 H Curve point Y6 12405 H Curve point X1 12406 H Curve point ...

Page 52: ...Day_Anti_Bact 13122 Start_Anti_Bact 13123 Duration_Anti_Bact 13124 Desired_Anti_Bact 13125 Ext input 13141 Ext mode 13142 Alarm Clear 13146 Upper difference 13147 Lower difference 13148 Delay 13149 Cut off temp 13150 Auto tuning 13173 Motor pr 13174 Temp min 13177 Temp max 13178 Xp 13184 Tn 13185 M run 13186 Nz 13187 Min act time 13189 Des DHW T 13190 Des DHW T 13191 Des flow T 13231 CPU 60054 CPU...

Page 53: ...on 9 6 Revision History Version Date Description 1 2010 11 15 Initial release 2 2011 03 21 Minor corrections 3 2011 08 20 Correction to schedule description and minor additions Produced by Danfoss A S 08 2011 Danfoss District Energy VI LG V3 02 DEN SMT DK 53 ...

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