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Weather Compensation Curves

EY.65.H4.02

21

7.

WEATHER COMPENSATION CURVES

Weather compensation means that the ECL 2000 regulates the heat circuit tempera-
ture in accordance with the outdoor temperature.

Weather compensation is controlled by two user-definable curves:

•

A flow temperature curve

•

A return temperature curve.

Flow temperature curve

Outdoor temperature

The flow temperature curve shows the reference flow
temperature in the heat circuit as a function of the out-
door temperature. By modifying this curve, you deter-
mine what the flow temperature should be for various
values of the outdoor temperature.

At low outdoor temperatures, you will normally want a
higher flow temperature, as shown in the curve to the
left.

You can set up maximum and minimum values for the
reference flow temperature. This is explained on
page 22.

Return temperature
curve

Outdoor temperature

The return temperature curve controls return tempera-
ture limiting in accordance with the outdoor tempera-
ture. The curve shows the acceptable return temperature
as a function of the outdoor temperature.

Normally, a low outdoor temperature means that a
higher return temperature will be allowed. This is also
the case with the curve shown to the left.

For further information on return temperature limiting,
see page 47 and 48 (heat circuit) and page 58 and 59
(hot-water circuit).

The following pages provide instructions for setting up the curves.

Note:
The setting of the flow and return temperature curve is essential for the functioning of
the ECL 2000. Therefore, it is important to check that the resulting curve is reason-
able in relation to the controlled system.

Reference flow
temperature

Return tem-
perature limit

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Содержание ECL 2000

Страница 1: ...User s Guide ECL 2000 11 99 EY 65 H4 02...

Страница 2: ......

Страница 3: ...User s Guide ECL 2000 Danfoss A S EY 65 H4 02...

Страница 4: ...h al terations can be made without subsequential changes being necessary in specifications already agreed All trademarks in this material are property of the respective companies Danfoss and the Danfo...

Страница 5: ...omfort and Night Setback Temperature Settings 14 4 5 Changing the Operating Mode 15 5 TIME PROGRAMMING 16 5 1 Extending the Comfort or Night Setback Period 16 5 2 Setting the 7 Day Plan 17 5 3 Setting...

Страница 6: ...4 3 Alarm Setup 66 10 4 4 Log Today Log Yesterday 67 10 4 5 Override 68 10 4 6 Communication 70 10 4 7 Sensors 71 10 4 8 Degree Days 72 10 4 9 Access Code 72 10 4 10 Energy Consumption 73 10 4 11 Lang...

Страница 7: ...the controller Appendix A contains a number of charts providing an overview of the ECL 2000 s display pictures Appendix B provides a similar listing of the ECL 2000 s service menus Appendix C provides...

Страница 8: ...Introduction EY 65 H4 02 2 This page is intentionally left blank...

Страница 9: ...programmed applications The ECL 2000 s built in applications cover a wide variety of commonly used central heating configurations See page 25 for further information 2 2 Operating Modes The controlle...

Страница 10: ...ECL 2000 to override the 24 hour program and keep one or more circuits at comfort temperature for a prolonged period of time for exam ple until later in the evening than normally The economy function...

Страница 11: ...ciples Detailed descriptions of the various ECL 2000 functions are given from page 9 For an overview of navigating through ECL 2000 pictures see the charts in Appendix A page 75 3 1 The Front Panel S...

Страница 12: ...ing weather compensation curves changing service settings operating the plant manually and selecting an application These are Push button Function 7 day plan and holiday plan Lets you modify the contr...

Страница 13: ...a series for example in the System Overview or the Circuit Status Move the cursor within a picture Increases the value of a setting for example a temperature setpoint Reduces the value of a setting N...

Страница 14: ...e adjusting is active was pressed Service menus are active was pressed Manual operation is active was pressed System setup is active was pressed Press to access next picture Press to access previous p...

Страница 15: ...ser of the ECL 2000 It describes the functions which are used during normal day to day operation of the ECL 2000 Instructions are provided for Getting an overview of the plant and looking at individua...

Страница 16: ...night setback temperature The hot water is kept at comfort temperature constantly The System Overview shows the total setup of the plant This means that the picture looks slightly different according...

Страница 17: ...ys calculated since the first day of the current month and the number of degree days calculated since the change of season 3 The following status information is only available when the appropriate sen...

Страница 18: ...k temperature setpoint Operating mode of the circuit Automatic Comfort Night setback or Stand by 24 hour program Current status of timer Operating mode of the timer 24 hour program To return to the Sy...

Страница 19: ...ctual 49 C and reference flow temperature calcu lated 48 C return temperature 24 C for a radiator heating system Primary return temperature and secondary flow tem perature for a circuit that includes...

Страница 20: ...t or a hot water service 1 In the System Overview picture press to dis play the picture of the desired circuit In the Circuit picture in this example the comfort tem perature is highlighted indicating...

Страница 21: ...ller maintains comfort temperature for all circuits Night setback The controller maintains night setback temperature con stantly in all circuits Stand by Temperature control is stopped but the system...

Страница 22: ...set the stopping time and date i e the time when the controller will revert to the normal 24 hour program 5 Use and to adjust the stopping time in 30 minute steps The stopping date is adjusted automat...

Страница 23: ...number is replaced by a cursor 4 If you wish to select a group of days for example Monday through Friday use to add the cur rently selected day to the group Use to remove the selected day from the gro...

Страница 24: ...month The year changes automatically when the month changes from Dec to Jan Now proceed to select the days of the holiday period 5 Press or to move the cursor to the first day of the selected month Th...

Страница 25: ...ect an operating mode see page 3 for information about ECL 2000 s operating modes When you select Automatic a time line appears at the bottom of the display 14 Press to move the cursor to the time lin...

Страница 26: ...e you are authorized to modify all settings that do not require the service level code These settings are the ones that may need changing during normal day to day operation for example a temperature s...

Страница 27: ...m and minimum values for the reference flow temperature This is explained on page 22 Return temperature curve Outdoor temperature The return temperature curve controls return tempera ture limiting in...

Страница 28: ...te of the selected point is highlighted to indicate that it can be modified 5 Use and to select either the flow tempera ture y co ordinate or the outdoor temperature x co ordinate of the point 6 Use a...

Страница 29: ...ay the curve points 3 Use and to move the cursor to the point you wish to modify The y co ordinate value the return temperature of the selected point is highlighted to indicate that it can be modified...

Страница 30: ...Weather Compensation Curves EY 65 H4 02 24 This page is intentionally left blank...

Страница 31: ...pplication that matches your plant best Once you have selected an application you have the possibility of customizing one or more system parameters If the ECL 2000 has already been programmed with a p...

Страница 32: ...se through available appli cations Each application picture shows a diagram of the system configuration Refer to the ECL 2000 Installation Guide ref 2 for system diagrams offering additional detail Wh...

Страница 33: ...2 When you have selected an application you are ready to configure inputs and out puts 1 In the Application picture see facing page press to access Input settings Configuring Sensor Inputs The first p...

Страница 34: ...ers Sensor Circuit and Unit 4 Use and to modify the parameter Poll Section 8 4 3 starting on page 32 gives some details about the possible settings of the LON inputs See also section 10 4 6 on page 70...

Страница 35: ...ttings 1 Press until the arrow symbol appears at the top right corner of the dis play 2 Press again If you have selected a different application or if one of the parameters Sensor Cir cuit or Type has...

Страница 36: ...ells the ECL 2000 what is measured by means of the sensor connected to this input The setting can have the following values Value Description Room temp Room temperature Sun intens Sun intensity Wind v...

Страница 37: ...Offset For a 0 10 V sensor the ECL 2000 must convert the input voltage received from the sensor into the correct value using the correct unit of measurement The parameters Amplific amplification and...

Страница 38: ...automatically collected from the same device None The LON input is not used i e no input is taken from the LON network Circuit This parameter determines which circuit is influenced by the collected da...

Страница 39: ...d in MW When this setting is active the accu mulated energy is measured in GWh Note When the energy unit is set to kW there is a risk of an overflow error if the measured energy power consumption exce...

Страница 40: ...y heat exchanger for a heat circuit with a mixing valve and a hot water circuit with indirect control of storage tank Heat circuit and hot water circuit with indirect control of storage tank Common pr...

Страница 41: ...with direct control of storage tank Common primary heat exchanger for one heat circuit with mixing valve one heat circuit without and a hot water circuit with indirect control of storage tank Two heat...

Страница 42: ...erride is active frost protection of the plant is disabled 3 Press and to select the pump or valve you wish to operate see facing page The text below the selected component is highlighted to indicate...

Страница 43: ...cture today s log by pressing Today s log The fully drawn curve indicates the flow temperature the dotted curve shows the return temperature 1 Yesterday s log The ECL 2000 keeps logs of the temperatur...

Страница 44: ...e are called Common Functions The options that are available in service menus depend on the application that is se lected and the setup of the system This chapter describes all service menu options th...

Страница 45: ...f setting pictures associated with it How many de pends on the selected application see page 26 and the type of controller you are working with You use and to access these pictures 2 Press to access t...

Страница 46: ...Service Settings EY 65 H4 02 40 To exit a service setting picture 4 Press once to return to the service menu and once more to exit the service menu All changes you have made are saved automatically...

Страница 47: ...meters that can be set for a heat circuit Please disregard the descriptions of any parameters not available in your specific system setup Instructions for operating the ECL 2000 s service menus are pr...

Страница 48: ...economic manner possible The Optimizer offers functions for Calculating the optimum starting time in order for room temperature to reach the desired level the comfort temperature at the time defined...

Страница 49: ...value 0 hours Range 0 24 hours The maximum pre heat period the system is allowed to calculate and use Change this setting to enable the optimizer func tion Calculated Calculated pre heat pe riod Rang...

Страница 50: ...isabled Display text Parameter Default value range Description Boost factor Default value 0 Range 0 100 The percentage by which the flow tem perature should be increased during the pre heat period Slo...

Страница 51: ...t is generally desirable to stop the pump or at least reduce the number of revolutions When a normal pump is used the pa rameter is set to OFF In this case the controller stops the pump when the cal c...

Страница 52: ...measured flow data Display text Parameter Default value range Description Cut off time Default value 0 min Range 0 30 min The period during which the valve is closed Min flow Minimum flow Default valu...

Страница 53: ...setting Integr time Integration time Default value 20 seconds Range 0 999 seconds In case of a constant control error signal the motor will have moved by an amount equal to that caused by the P band a...

Страница 54: ...e OFF Range ON OFF When the setting is ON the flow tem perature is adjusted according to varia tions of the room temperature over a period of time Note When this setting is ON the Max am plific and Mi...

Страница 55: ...ated flow temperature A negative amplification causes a reduc tion of the calculated flow temperature a positive amplification causes an increase Integr time Integration time Default value 15 min Rang...

Страница 56: ...is connected to the system It reduces the flow temperature in the heat circuit when the sun intensity rises above the setpoint Display text Parameter Default value range Description Setpoint Default...

Страница 57: ...items Hot water Pump valve PI constants and Limiter Each menu item gives access to a number of pictures allowing you to view and modify various parameters for the hot water service The number of pict...

Страница 58: ...rily raising the hot water temperature setpoint The following parameters can be set Display text Parameter Default value range Description Duration Default value 0 0 hours Range 0 23 45 hours The peri...

Страница 59: ...ure is used in application 2 10 and 13 The hot water circuit has direct storage tank control and the tank is equipped with an internal heat ex changer For these applications the following setting is a...

Страница 60: ...ure equal to the hot water setpoint plus the charge in crease Cut in diff Cut in differ ence Default value 6 K Range 0 50K Charging starts when the upper tank temperature falls below the setpoint mi n...

Страница 61: ...ng starts when the upper tank temperature falls below the setpoint mi nus the cut in difference Cut out diff Cut out differ ence Default value 10 K Range 0 50 K Charging ends when the lower tank tem p...

Страница 62: ...t back mode Prerun Prerun period Default value 3 min Range 0 9 min Delay before the charging pump is started During charging This group of settings determines how pumps in the system operate during ch...

Страница 63: ...ff The controller can be set up to close the valve if the system flow falls below a user defined limit The following settings are available when a sensor measuring flow is connected to the system Disp...

Страница 64: ...ionally to the temperature deviation and the P band setting Integr time Integration time Default value 15 seconds Range 0 999 In case of a constant control error signal the motor will have moved by an...

Страница 65: ...the circuit exceeds the flow setpoint Display text Parameter Default value range Description Setpoint Default value 1 00 m3 h Range 0 0 999 l h or 0 0 999 m3 h Flow setpoint Measured flow above this...

Страница 66: ...Service Settings EY 65 H4 02 60 Please refer to the ECL 2000 Technical Manual ref 3 for documentation of the Universal limiter...

Страница 67: ...Service Settings EY 65 H4 02 61 This page is intentionally left blank...

Страница 68: ...unction of the controller For example you can select which language should be used in the display you can set the time and date and you can change the access code The diagram gives an overview of some...

Страница 69: ...is continued from the previous page To access Common Functions 1 In the System Overview picture press As shown in the diagram above the Common Functions are divided into 13 groups The most important o...

Страница 70: ...e YES NO When the parameter is set to YES the controller automatically switches to and from summer time on the standard EU dates These are displayed in the fol lowing settings Summer start Winter star...

Страница 71: ...imit Figure 8 Alarm limits and status intervals Note All the parameters in the Alarm Status pictures are read only Display text Parameter Default value range Description Actual The actual value of the...

Страница 72: ...temperature lies between Low and High the alarm status has the value Normal Min Default value 60 C Range 100 100 C When the temperature is between Min and Low the alarm status has the value Low Limit...

Страница 73: ...ng is ON alarms will be transmitted to the recipient address determined by the set ting in fourth line 0 1 2 3 The setting Hi in the second line indi cates that an alarm will be transmitted to an exte...

Страница 74: ...to drop below the setpoint be fore the priority function is activated 1 When this happens the motor valves to the heat circuits are gradually closed Flow temp diff Flow tem perature dif ference Defau...

Страница 75: ...n Total stop is set to OFF the heat circuits are controlled according to the night setback temperature setting Safety thermostat The safety thermostat function allows you to specify a maximum limit fo...

Страница 76: ...n Display text Parameter Default value range Description Subnet Default For LON module TP XF 78 12 For LON module FTT 10F 11 Range 0 1 255 Read only parameter A value of 0 means that the Subnet part o...

Страница 77: ...f Troom circ 1 Troom circ 2 Room tem perature cir cuit 1 or 2 Default value 1 h Range 1 0 50 0 h Time constant for calculating filtered room temperature Used to control sum mer cut off Time constants...

Страница 78: ...fault Jun Range Jan Dec The month in which the season for de gree day calculation starts When Start Season is changed Actual is reset to 0 10 4 9 Access Code This function allows you to change the acc...

Страница 79: ...press to reset the accumulated energy consump tion to 0 A new calculation of the accu mulated value is started LON input When energy consumption is being measured by a device connected to the ECL 200...

Страница 80: ...e English Dan ish German Polish Use and to select the desired language 10 4 12 Version This picture displays version information about the controller Display text Parameter Default value range Descrip...

Страница 81: ...djust display contrast Select temperature setpoint Change temperature setpoint Select temperature setpoint Change temperature setpoint Extend comfort period party func tion Select temperature setpoint...

Страница 82: ...Appendix A Display Charts EY 65 H4 02 76 A 2 System Overview Selecting a Circuit Viewing Circuit Status Select setpoint Change setpoint Select setpoint Change setpoint S8 S9 S10 S11 L1 L2 L3 L4...

Страница 83: ...EY 65 H4 02 77 A 3 Time Programming Move cursor Select mode Select day Select group of days Change month Move cursor Comfort temp Night setback temp Move cursor Move cursor Select dates Move cursor Co...

Страница 84: ...ves Select curve point Select x or y Previous next picture Move point Select curve point Select x or y Previous next picture Move point Select max or min Previous next picture Change max or min Select...

Страница 85: ...Appendix A Display Charts EY 65 H4 02 79 A 5 Configuring the ECL 2000 Press and keep de pressed to select ap plication Select parameter Change parameter...

Страница 86: ...Appendix A Display Charts EY 65 H4 02 80 A 6 Manual Override Select component Next picture Pump ON Valve OPEN Pump OFF Valve CLOSE...

Страница 87: ...Appendix B Service Menus EY 65 H4 02 81 APPENDIX B SERVICE MENUS B 1 Heat Circuit Menus 0 1 2 3 4 5 1 2 or 3 4 or or or 4 or...

Страница 88: ...Appendix B Service Menus EY 65 H4 02 82 B 2 Hot Water Service Menus 0 1 2 3 4 5 1 or or 2 or 3 4 or or...

Страница 89: ...Appendix B Service Menus EY 65 H4 02 83 B 3 Common Function Menus 0 1 2 3 4 5 1 2 etc 3 etc 4 etc...

Страница 90: ...Appendix B Service Menus EY 65 H4 02 84 B 3 Common Function Menus Cont 0 1 2 3 4 5 5 etc 6 7 8 9...

Страница 91: ...Appendix B Service Menus EY 65 H4 02 85 B 3 Common Function Menus Cont 0 1 2 3 4 5 10 11 or or 12 13...

Страница 92: ...Appendix B Service Menus EY 65 H4 02 86...

Страница 93: ...rs for each application Application Heat circuit 1 Heat circuit 2 Hot water circuit 1 ______ Flow temp S1 ______ Flow temp S4 Return temp S2 Return temp S5 2 ______ Flow temp S1 ______ Upper tank temp...

Страница 94: ...______ Flow temp S1 ______ Flow temp S4 ______ Upper tank temp S6 Return temp S2 Return temp S5 Lower tank temp S7 152 ______ Flow temp S1 ______ Flow temp S4 ______ Flow temp S10 Return temp S2 Retur...

Страница 95: ...lication which it is going to control This entails selecting an application type and possibly also customizing user definable inputs and outputs Comfort In this operating mode the ECL 2000 maintains t...

Страница 96: ...manually While this mode is selected automatic control is disabled for all heat and hot water circuits of the plant Night setback In this operating mode the ECL 2000 maintains the temperature in the h...

Страница 97: ...s are a number of parameters that determine how the ECL 2000 functions The service settings can be displayed and modified via the controller s service menu Stand by In this operating mode automatic co...

Страница 98: ...Glossary EY 65 H4 02 92 This page is intentionally left blank...

Страница 99: ...02 93 REFERENCES 1 ECL 2000 Quick Guide VI 74 V1 02 2 ECL 2000 Installation Guide EI 65 D4 02 3 ECL 2000 Technical Manual EU 65 G2 02 4 ECL 2000 Technical Manual LON Option VI 74 N2 02 5 ECL 2000 Dat...

Страница 100: ...References EY 65 H4 02 94 This page is intentionally left blank...

Страница 101: ...break point weather compensation curve 22 building settings 41 night setback disable 44 optimizer 42 summer cut off 41 C calc setpoint return temp limiter heat circuit 48 calculated cooling period 43...

Страница 102: ...6 57 flow limiter heat circuit 49 hot water circuit 59 flow temperature weather compensation 22 flow temperature control heat circuit 47 hot water circuit 58 flow temperature curve 21 flow temperature...

Страница 103: ...plification room influence 48 maximum cooling period 43 maximum deviation 68 maximum pre heat period 43 Min alarm setup 66 min range 65 minimum weather compensation curve 22 minimum amplification room...

Страница 104: ...water circuit 56 purpose 1 push buttons function 6 overview 6 R relay output configuring 28 33 function 33 return temperature weather compensation 23 return temperature curve 21 return temperature li...

Страница 105: ...ion T temperature filtered 42 temperature anti bacteria function 52 time 64 alarm status 65 time constant filtered temperature 71 sensor 71 timer 4 10 91 operating mode 12 status 12 timer circuit manu...

Страница 106: ...Index EY 65 H4 02 100...

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