instruction ecl 9300 - danfoss

BC-HM VI.74.C2.02 © Danfoss 12/97 1

InstructionECL 9300(as from generation 20)

Contents

System drawings ................................ 2

Wiring diagrams .................................. 3

Wiring ................................................... 3

Temperature sensors andremote setting ..................................... 4

Master/slave units ............................... 4

Controller settings ......................... 5 - 8User settings ......................................... 5

- a) program clock- b) temperature setting- c) function switch- d) user guide- e) indicator light

Installer settings ............................... 6 - 7- f) heat curve slope- g) minimum flow temperature

- h) maximum flow temperature- i) reduced temperature- j) return temperature limiter

Special settings ..................................... 8- Switches 1-8

Function test ....................................... 9- Control status- Test of controller and sensors

Manual valve control .......................... 9- External override ........................... 9

Mounting ..................................... 10 - 12- On wall- In the front plate- Dismounting- Several controllers in parallel- Clock- Clock dismounting- External time control

087R

9380

087R

9380

2 VI.74.C2.02 © Danfoss 12/97 BC-HM

1. Boiler system with mixing circuit

2. Direct connected district heating system

3. Indirect connected district heating system


WiringTerminal strips with screw fasteningwires the controller.

Each terminal can wire up to 3 × 1,5 mm2

or the like. The terminals are encoded, sounits with supply voltage cannot be wiredin the low voltage part.

Wiring with 220 V AC (terminal 13-18)

Terminal Max. load

Phase (L) 14 -

Zero (N) 13 -

Circulating pump 18 - N 8 (2) A 230 V AC

Reversible gear motor AMB 123, AMV 123, AMV 523close 16 - N 8 (2) A 230 V AC

open 17 - N 8 (2) A 230 V AC

Wire cross section: 0,75 - 1,5 mm2

Wire length: Maximum 50 meter


Temperature sensors and remotesettingsECL 9300 is to be connected to thebelow Pt 1000 sensors:

Sensor Type Terminal

Outdoor temperature sensor ESMT 11 - 12

Flow temperature sensor ESMA/C/U 10 - 11

ECL 9300 is then controlling the flowtemperature according to the outdoortemperature.

In addition, below sensors or remotesetting units can be connected:

Sensor Type Terminal

Return temperature sensor ESMA/C/U 4 - 6

Room temperature sensor ESMR 4 - 5

Remote setting unit with built in room temperature sensor ESMF 3 - 4Remote control with clock, optimizer

ECA 9020 1 - 2and room temperature sensor

Wire cross section: 0,75 - 1,5 mm2

Wire length: Maximum 50 meter.

The measure result might deviate due towire resistance. A resistance of 4 Ohmcorresponds to a deviation of about 1 K.

Mounting of sensors and remote settingunits are further described in theparticular product instructions.

Master/slave unitsECL 9300 can control several slave units(the number of slave units depends onthe control type). Further details aredescribed in instruction on master/slaveunits.


Controller settings

User settingsa) Program clockb) Temperature settingc) Function switchd) User guidee) Indication light

a) Program clockThe program clock is set in the requirednormal and reduced temperature periodsby pushing riders for reducedtemperature setting towards the center ofthe clock

Set the actual time (24-hour clock) or day(week clock) opposite the arrow

b) Temperature setting

Parallel displacement- switch 4 OFFThe flow temperature of the heatingcircuit can be increased or reduced byturning the temperature setting knob.Turn the knob to the right for increasingthe room temperature. The factory settingis 0.

Max. setting ±8 corresponds to anapprox. 8 °C room temperature rise.

Room temperature is limited at 22 °Cwhen ESMR/F is connected. ESMF candisplace this limit with ±10 °C.

Min. flow temperatures and radiatorthermostats provide optimal heateconomy.

Reference room control- switch 4 ONThe room temperature is set by turningthe temperature setting knob. Turn theknob to the right for increasing the roomtemperature. The center positioncorresponds to 20 °C room temperature.The setting range is 12 - 28 °C.

c) Function switch

The valve closes and the circulatingpump stops. The system isprotected against frost damages.

The program is overriden, i.e.constant reduced temperature

Automatic change between normaland reduced temperature as set onthe clock

The time program is overriden, i.e.constant normal temperature

Manual setting.All control functions are cancelled,the valve is not active and thecirculating pump is constantly inoperation. The valve can beoperated manually. Test ofcontroller and sensors.

e) Indication lightThe indication light shows:

- The controller is in operation- The valve is opening or closing- Possible faults (test result)


Outdoor * Radiator Floor heatingtemperature (80 °C) (55 °C)

–25 °C 1.2 0.7

–15 °C 1.6 0.9

–10 °C 1.8 1.0

* Dimensioned outdoor temperature - normally thelowest outdoor temperature of the heating season.

Installer settingsf) Heat curve slope of the heating

circuitg) Minimum flow temperatureh) Maximum flow temperaturei) Reduced temperaturej) Return temperature limiterk) Mini-switches

f) Setting the heat curve slopeThe heat curve can be set within 0.25 -3.4. Ex factory the heat curve is set at1.8.

If the room temperature is notcomfortable when the outdoortemperature is below +5 °C, the slope isincreased. At outdoor temperaturesabove +5 °C the heat curve is displacedin parallel, as described in b) page 5.

Heat curve settings - examples


g) Minimum flow temperatureThe flow temperature in the heatingcircuit can be set within a range of10 - 70 °C. The factory setting is 10 °C.

h) Maximum flow temperatureThe flow temperature in the heatingcircuit can be set within a range of30 - 110 °C. The factory setting is 90 °C.

i) Reduced temperature setting (asfrom generation 20 with new scale)Reduced temperature is set in threedifferent ways:1. Heating system is totally cut-out " "

i.e. valve closes and pump stops. Thesystem is frost-protected.

2. Fixed temperature reduction (1 - 14K)3. AUTO-setting, i.e.outdoor temperature

dependent temperature reduction

For fixed and AUTO-settings applies thatthe level of the reduced temperaturedepends on whether or not a roomsensor ESMR/ESMF is connected.

ESMR / ESMF not connectedThe flow temperature is lowered (paralleldisplaced) to obtain the requiredtemperature in the room

ESMR / ESMF connectedBoiler system (miniswitch 6 = OFF)

District heating system(Miniswitch 6 = ON)

Setting: 1 - 14

Setting 1 - 14 and AUTO:

Setting: AUTO

j) Return temperature limiterHeating-circuit return-temperature can belimited. The limiting function is set onswitch 6 (see special settings).

District heating systems use max. limit,whereas boiler systems use min. limit.

Setting range is 30 - 90 °C. Factorysetting is 60 °C (maximum).


Special settingsECL 9300 has eight mini-switches placedbehind a small cover when tipping out theinside cover. The switches are used foradapting the controller to the heatingsystem.

Switch 4Choose limit function or adaptivereference room control

Standard settings

Switch 1 and 2Choose at which outdoor temperatureyou want to cancel the room heating(summer cut-out)

Switches Cancelling temperatures1 2

OFF OFF No cancellation

OFF ON 15 °C

ON OFF 18 °C

ON ON 21 °C

Switch 3Choose whether you want boost (flowtemperature increase) after reducedtemperature.

Switches Function3

OFF No boost

ON 20 % boost for one hour

Switches Function4

OFF Limit functionWhen ESMR/ESMF isconnected, the flowtemperature is reduced in casethe room temperature exceeds22°CNote: When ESMF isconnected the max. limit valuecan be displaced in parallel to22 °C by ±10 °C

ON Adaptive/reference roomcontrol

When ESMR/ESMF isconnected the flow temperaturecan be automatically adapted toto heat demand. The roomtemperature is set by the knobfor parallel displacement(± - knob). The center positioncorresponds to 20 °C roomtemperature. The range being12 - 28 °C.

Switch 5Always in position OFF.

Switch 6Choose type of heating system

Switches Function6

OFF Boiler system with mixing circuit(min.return limiter)

ON District heating system(max. return limiter)


Switch 7Choose at which outdoor temperatureyou want to cancel temperaturereduction.

Switches Outdoor temperature7

OFF 0 °C(only when miniswitch 6 is ON)

ON –15°C

Switch 8Choose whether or not the valve is toclose at hot-water-service demand in themain controller (hot-water priority)The function can only be activated whenthe controller is a slave controllerSwitches Function

8

OFF Valve closes at hot-water-servicedemand in the main controller

ON Valve does not close

Function testThe indicator light shows whetherECL 9300 is in operation or not.Moreover the indication shows thecontrol status and faults when testingsensors and controller.

Control statusAt normal operation with function switchin position , , or the indicationlight will be on.

Reversible gear motorConstant light:The flow temperature is in the neutralzone and the motor does not receivesignals. The valve is not activated.

Constant light with two intervals:The flow temperature is below the neutralzone. The motor opens the valve.

Constant light with three intervals:The flow temperature is above theneutral zone. The motor closes the valve.

Note that the indication does not followthe signals.

Test of controller and sensorsECL 9300 can test both the controllerand the sensors. Turn the function switchin position After about five seconds the lamp willflash and show the test result. The resultis shown about every eight seconds.

No light:The controller is defect or the flowtemperature sensor is not mounted.

Constant light with 1, 2, 3 or 4 intervals:The number of intervals must correspondto the number of connected sensors. Ifthe number is not correct, one or severalsensors might be short-circuited ordisconnected.

Constant light:The controller is defect.

Manual valve controlWhen testing or adjusting the limitswitches of the gear motor, the valve canbe manually controlled by turning thefunction switch in position

Open the valve by turning the knob allthe way to the right for paralleldisplacement. Close the valve by turningit to the left.

If the motor does not rotate in the correctdirection, the wires are interchanged, i.e.terminals 16 and 17.

External override functionOverride to " " or " " via the sensorinlets. ECA 9010 override module mustbe used to avoid contact resistance andcan be connected to below terminals(see instruction for further information):Terminal 3 - Room sensorTerminal 6 - Return sensorTerminal 7 - Hot-water-service sensor

10 VI.74.C2.02 © Danfoss 12/97 BC-HM

Mounting

On wallUse a standard or a special base platewith wall case for mounting ECL 9300 onwall.

The plate is fixed on a flat surface withtwo 4 mm screws (standard) or three 4mm screws (special). Be aware of the"UP"-arrow.

Then wire the ECL 9300 as described inthe paragraph "Wiring".

The controller is mounted in the baseplate (when using the special base plate,note that the controller is first of all to befit into the wall case) and screw up thecenter screw behind the cover plate.

In the front plateECL 9300 can be built into a boiler frontplate. The opening is to measure 92 ×138 mm and the plate is to be max. 3 mmthick.

Fix four retainer springs on the controller,push it gently into the opening and thesprings will secure the controller in theopening. The retainer springs aredelivered as accessories together with 2terminal strips.

Wire the ECL 9300 to the two terminalstrips and then mount them in thecontroller. The terminal strips areencoded to prevent exchange bymistake.

On a DIN-railECL 9300 can be mounted on a 35 mmDIN-rail. Fix a spring - delivered asaccessory - on the base plate bottom andthen mount the base plate on the DIN-rail.

BC-HM VI.74.C2.02 © Danfoss 12/97 11

DismountingIf the controller is mounted in a frontplate, dismount it by pressing the retainersprings together and dismount the built-incontroller.

Tip out the controller when the retainersprings are not accessible.

In boiler front plate

On wall or on DIN-rail

Several controllers in parallel

12 VI.74.C2.02 © Danfoss 12/97 BC-HM

ClockWhen the clock is not mounted removethe glass cover, the inside cover and theclock cover and then mount the clock.

Open the glass cover all the way to theleft - the taps will then slide out. Theinside cover is tipped out and the clockcover is unscrewed.

Then the clock is placed in the center ofthe opening with the plugs downwards.Fasten the clock with the screws.

Clock dismountingRemove the screws and dismount theclock by gently tipping it out.

External time controlAn external control panel ECA 9020 cantime control ECL 9300. ECA 9020 isconnected to the bus terminals on therear of the ECL controller (see wiring).

instruction ecl 9300 - danfoss

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