Danfoss ECL Comfort 300 - C75 Operating instructions

Brand: Danfoss

Model: ECL Comfort 300 - C75

Type: Operating instructions

ECL COMFORT

ECL Comfort

User’s Guide

C75

Table of Contents

Daily use

Section

1 Choose favourite display

2 Select controller mode

3 Adjust room and hot water temperature

4 Set personal day plan

5 Advantages of the ECL Card

6 Hot points

7 Definitions

Your personal week plan:

Heating I

03691215182124

1 Monday

2 Tuesday

3 Wednesday

4 Thursday

5 Friday

6 Saturday

7 Sunday

Heating II

03691215182124

1 Monday

2 Tuesday

3 Wednesday

4 Thursday

5 Friday

6 Saturday

7 Sunday

The factory setting is indicated in grey.

823-

6-8 16 - 22

This guide is associated to ECL Card 087B4825

Installer:

By:

Date:

ECL COMFORT

ECL Comfort

Installation and

Maintenance

Boiler controller with mixing circuit

and hot water control

823-

C75

The documentation for the ECL Comfort controller is

composed of numbered sections. Only sections that are

relevant to your ECL Comfort controller are included here.

Installation and maintenance. Grey sections 10 and

onwards. Turn the guide over.

Table of Contents

Sections of the Installer’s part of this guide

The documentation for the ECL Comfort controller is

composed of numbered sections. Only sections that are

relevant to your ECL Comfort controller are included here.

Before you start

Installation

10 Identifying the system type

11 Mounting the controller

12 Electrical connections 230 V a.c.

13 Electrical connections 24 V a.c.

14 Placing the temperature sensors

15 Inserting the ECL Card

Basic Set-up

16 Adjusting the ECL Card settings

17 Setting the time and date - Line A

18 Monitoring temperatures and system units - Line B

19 Manual control- Line B

20 Setting the heat curve - Line C

21 Heating cut-out - Line 1

22 Flow temperature limits - Line 2

23 Room temperature influence - Line 3

24 Boiler control - Line 4

26 Setting the PI-regulation - Line 4 - 7

27 Hot water controller - Line 6 and 7

Control & overviews

29 Check list

30 ECL Card settings

31 Service parameters

Extended Service

32 Adjusting the service parameters 10 - 199

Miscellaneous

34 Copying with the ECL Card

Daily use, turn the guide over sections 01 - 07

1 Choose favourite display

2 Select controller mode

3 Adjust room and hot water temperature

4 Set personal day plan

5 Advantages of the ECL Card

6 Hot points

7 Definitions

VI.7C.K1.02

6-8

16 - 22

The shown diagram is a fundamental and simplified

example and does not contain all components that are

necessary in heating systems.

If the system you are about to install is different than the

shown diagram of a standard heating system, feel free to

sketch an outline for comparison. Adaptation of heating

systems, See section 10.

List of components:

ECL Comfort 300

S1 Outdoor temperature sensor (ESM-10)

S2 Room temperature sensor (ESM-10)

S3 Flow temperature sensor (ESM-)

S4 Return temperature sensor (ESM-)

S5 Boiler sensor (ESM-)

S6 Hot water sensor

P1 Circulation pump for heating

P2 Cirkulation pump for boiler

P3 Charging pump for hot water

B Burner

M2 Mixing valve with motor

Installation & maintenance

The ECL Card, grey side

for installation and maintenance.

Lines A to C, and lines 1 to

7 for basic settings, see overview

section 30.

Extended service parameters,

see section 31

The ECL Card: Installer’s

instruction

The grey side of the card must face

you when change the settings. For

daily use and during start-up the

yellow side of the card must face you.

Circuit

selector

Shift

button

Adjustment Controller

mode

The circuit indicator shows the selected heating circuit.

The ECL Card

For daily use and your personal adjustments the yellow side

of the ECL Card must be facing you.

The display

Each line, A, B, C, 1, 2 etc. of the ECL Card has its own

display. See section 1.

Controller mode

Manual operation (Used only at

maintenance and service)

Automatic operation

Constant comfort temperature

Constant reduced temperature

Standby mode

Arrow buttons. Switch between

the lines of the ECL Card.

Shift button. Switches between

temperatures, changeover points etc.

Adjust temperatures and values etc.

Circuit selector for switching between

boiler circuit, heating circuit and hot

water circuit.

Room temperature

circuit I/

Room temperatur

circuit II/

Hot water tempera-

ture circuit III

Heating system

Today’s programme

Day plans

Heating - circuit II

Boiler - circuit I

Line indicator

Circuit

0 3 6 9 12 15 18 21

0369121

0356

ONON

111

0 3 6 9 12 15 18 21 24

913

0354

ONON

111

0 3 6 9 12 15 18 21 24

913

Controller mode

Manual operation (used only at

maintenance and service)

Automatic operation

Constant comfort temperature

Constant reduced temperature

Standby mode

Arrow buttons. Switch between

the lines of the ECL Card.

Shift button. Switches between

temperatures, changeover points etc.

Adjust temperatures and values etc.

Circuit selector for switching between

boiler circuit, heating circuit and hot

water circuit.

Hot water - circuit III

ONON

111

0 3 6 9 12 15 18 21 24

Circuit indicator

0 3 6 9 12 15 18 21

0 3 6 9 12 15

How to use this guide

This guide is divided into two parts:

• Daily Use (Turn the guide over)

Yellow sections 01 - 07

• Installation and maintenance:

Grey sections 10 and onwards

Save energy - save money - improve your comfort

temperature

The ECL Comfort controller is designed by Danfoss for

temperature control of heating systems.

The ECL Comfort controller ensures you of the following;

• Room and hot water temperatures will be adjusted to

yourpersonal settings.

• Lower temperatures and lower energy consumption

reduce costs and ensure optimum use of energy

resources.

• The automatic pump motion and valve motion program

protects against blocking.

Sketch an outline of your heating system

The ECL Comfort controller is designed for a wide range of

heating systems with different configurations and

capacities.

If your heating system differs from the diagrams shown in

section 10, you may want to sketch an outline of the

system about to be installed. This makes it easier to use the

Installer’s Guide, which will guide you step-by-step from

installation to final adjustments before the end-user takes

over.

Note! The controller is pre-programmed with factory

settings which are shown in the relevant sections of this

guide.

Before you start

VI.7C.K1.02

Installation

Identifying the system type

In this section you find the most frequently used systems. If

your system is not quite as shown below, find the diagram

which has the best resemblance to your system and make

your own combinations.

Installation

10.1 Two-stage burner with radiator circuit,

mixing and hot-water circuit

Electrical connections 230 V a.c.

Establish these jumpers:

Jumper from 1 to 5

Jumper from 5 to 8

Jumper from 8 to10

Jumper from 10 to 12

Jumper from 12 to14

Jumper from 14 to 26

Jumper from 26 to 29

Jumper from 2 to common N-terminal

Terminal Description Max. load

1 L Supply voltage 230 V a.c.

(Live)

2 N Supply voltage 230 V a.c.

(Neutral)

3 Not used

4 P3 Charging pump 0.2 A 230 V a.c.

5 230 V a.c. voltage supply for

charging pump P3

6 M2 Gear motor - open 0.2 A 230 V a.c.

7 M2 Gear motor - close 0.2 A 230 V a.c.

8 230 V a.c. voltage supply for

gear motor

9 P1 Circulation pump - boiler

circuit - alt. mixing circuit 4(2) A 230 V a.c.

10 230 V a.c. voltage supply for

pump P1

11 BI Burner I 4(2) A 230 V a.c.

12 230 V a.c. voltage supply for

burner BI

13 BII Burner II 4(2) A 230 V a.c.

14 230 V a.c. voltage supply for

burner BII

25 P2 Optional with relay module:

Circulation pump for mixing

circuit 4(2) A 230 V a.c.

26 230 V a.c. voltage supply for

pump P2

28 P3 Charging pump/diverting

valve 4(2) A 230 V a.c.

29 230 V a.c. voltage supply for

pump P3

System settings

Circ. Line Description Recom.

setting

I 51 Diverting valve/HW charging pump OFF

II 52 Closed valve/PI regulation ON

I 53 Boiler temperature ref. during HWS OFF

I 72 Sequence type 0

I 76 No. of steps (boilers) 2

I 88 Pump control in boiler or mixing circ. ON

Identifying the system type

Establish these jumpers:

Jumper from 1 to 5

Jumper from 5 to 8

Jumper from 8 to10

Jumper from 10 to 12

Jumper from 12 to14

Jumper from 14 to 26

Jumper from 26 to 29

Jumper from 2 to common N-terminal

Terminal Description Max. load

1 L Supply voltage 230 V a.c.

(Live)

2 N Supply voltage 230 V a.c.

(Neutral)

3 Not used

4 P3 Charging pump/diverting

valve P3 for hot water circuit 0.2 A 230 V a.c.

5 230 V a.c. voltage supply for

charging pump P3

6 M2 Gear motor - open 0.2 A 230 V a.c.

7 M2 Gear motor - close 0.2 A 230 V a.c.

8 230 V a.c. voltage supply for

gear motor

9 P1 Circulation pump - boiler

circuit - alt. mixing circuit 4(2) A 230 V a.c.

10 230 V a.c. voltage supply for

pump P1

11 B I Boiler I 4(2) A 230 V a.c.

12 230 V a.c. voltage supply for

boiler B I

13 B II Boiler II 4(2) A 230 V a.c.

14 230 V a.c. voltage supply for

boiler B II

25 B III Optional with relay module:

Boiler III 4(2) A 230 V a.c.

26 230 V a.c. voltage supply for

Boiler B III

28 B IV Optional with relay module:

/P2 Boiler IV/Pump P2 4(2) A 230 V a.c.

29 230 V a.c. voltage supply for

boiler B IV

Electrical connections 230 V a.c.10.2a Two to four boilers with radiator circuit,

mixing circuit and hot water circuit

System settings

Circ. Line Description Recom.

setting

I 51 Diverting valve/HW charging pump OFF

II 52 Closed valve/PI regulation ON

I 53 Boiler temperature ref. during HWS OFF

I 72 Sequence type 0

I 76 No. of steps (boilers) 3

I 88 Pump control in boiler or mixing circ. ON

10.2b Two to four boilers with radiator circuit,

mixing circuit and hot water circuit with

diverting valve on one boiler

System settings

Circ. Line Description Recom.

setting

I 51 Diverting valve/HW charging pump ON

II 52 Closed valve/PI regulation OFF

I 53 Boiler temperature ref. during HWS ON

I 72 Sequence type 1

I 76 No. of steps (boilers) 3

I 88 Pump control in boiler or mixing circ. ON

Identifying the system type

10.3 Two-stage boilers with radiator circuit,

mixing circuit and hot water circuit

Electrical connections 230 V a.c.

Establish these jumpers:

Jumper from 1 to 5

Jumper from 5 to 8

Jumper from 8 to10

Jumper from 10 to 12

Jumper from 12 to14

Jumper from 14 to 26

Jumper from 26 to 29

Jumper from 2 to common N-terminal

Terminal Description Max. load

1 L Supply voltage 230 V a.c.

(Live)

2 N Supply voltage 230 V a.c.

(Neutral)

3 Not used

4 P3 Charging pump/diverting

valve P3 for hot water circuit 0.2 A 230 V a.c.

5 230 V a.c. voltage supply for

charging pump P3

6 M2 Gear motor - open 0.2 A 230 V a.c.

7 M2 Gear motor - close 0.2 A 230 V a.c.

8 230 V a.c. voltage supply for

gear motor

9 P1 Circulation pump - boiler

circuit - alt. mixing circuit 4(2) A 230 V a.c.

10 230 V a.c. voltage supply for

pump P1

11 B I Boiler I - stage I 4(2) A 230 V a.c.

12 230 V a.c. voltage supply for

boiler B I

13 B II Boiler I - stage II 4(2) A 230 V a.c.

14 230 V a.c. voltage supply for

boiler B I

25 B III Optional with relay module:

Boiler II - stage I 4(2) A 230 V a.c.

26 230 V a.c. voltage supply for

Boiler B II

28 B IV Optional with relay module:

Boiler II - stage II 4(2) A 230 V a.c.

29 230 V a.c. voltage supply for

boiler B II

System settings

Circ. Line Description Recom.

setting

I 51 Diverting valve/HW charging pump OFF

II 52 Closed valve/PI regulation ON

I 53 Boiler temperature ref. during HWS OFF

I 72 Sequence type 0

I 76 No. of steps (boilers) 4

I 88 Pump control in boiler or mixing circ. OFF

Installation

Mounting the ECL Comfort

controller

For easy access, you should mount the ECL Comfort

controller near the heating unit. Select one of the three

following methods:

• Mounting on a wall

• Mounting on a DIN rail

• Mounting in a panel

Screws and rawlplugs are not supplied.

Mounting on a wall

Socket for mounting on wall: Order code No. 087B1149.

Mount the terminal box on a wall with a smooth surface.

Establish the electrical connections and position the

controller in the box. Secure the controller with the fixing

screw.

Mounting on a DIN rail

Mounting kit: Order code No. 087B1145.

A mounting kit is necessary to mount the box with the

controller on a DIN rail.

Mounting in a panel

Connector set: Order code No. 087B1148.

The panel plate thickness must not exceed 3 mm.

Prepare a cut-out with the dimensions 92 x 138 mm. Pull off

the right side of the lid by means of a screwdriver.

Insert the controller into the panel cut-out and fix it with the

two locks which are placed diagonally in two corners of the

controller.

Connecting the sensors

Installation

Establish the jumper from 16 to common terminal

Cable cross section for sensor connections: Min. 0.4 mm

Total cable length: Max. 50 m (sensors and bus).

NOTE! Cable lengths above 100 m may cause noise sensibility

(EMC).

Connecting the 230 V a.c. units

Electrical connections -

230 V a.c.

Installation

Cable cross section for voltage conductor: 0.75 - 1.5 mm

Cable length: Max. 50 m.

Electrical connections

Max. 2 x 1.5 mm

cables can be inserted in each screw

terminal.

Terminal Description Max. load

1 L Supply voltage 230 V a.c.

(Live)

2 N Supply voltage 230 V a.c.

(Neutral)

3 Not used

4 P3 Charging pump/diverting

valve P3 for hot water circuit 0.2 A 230 V a.c.

5 230 V a.c. voltage supply for

charging pump P3

6 M2 Gear motor - open 0.2 A 230 V a.c.

7 M2 Gear motor - close 0.2 A 230 V a.c.

8 230 V a.c. voltage supply for

gear motor

9 P1 Circulation pump - boiler cir-

/P2 cuit P1 - alt. mixing circuit P2 4(2) A 230 V a.c.

10 230 V a.c. voltage supply for

pump P1/P2

11 B I Boiler I 4(2) A 230 V a.c.

12 230 V a.c. voltage supply for

boiler B I

13 B II Boiler II 4(2) A 230 V a.c.

14 230 V a.c. voltage supply for

boiler B II

25 B III Optional with relay module:

/P2 Boiler B III/mixing pump P2 4(2) A 230 V a.c.

26 230 V a.c. voltage supply for

Boiler B III

28 B IV Optional with relay module:

/P3 Boiler IV/Pump P3 4(2) A 230 V a.c.

29 230 V a.c. voltage supply for

boiler B IV

15 and 16 System device bus

17 and 16 Outdoor sensor ESM-10

18 and 16 Room temperature

sensor ESM-11

19 and 16 Flow temperature ESM-10/ESMC/ESMU/

sensor (mixing circ.) ESMB

20 and 16 Return temperature ESM-11/ESMC/ESMU/

sensor ESMB

21 and 16 Boiler temperature

sensor ESMU

22 and 16 Hot water

temperature sensor ESMU

Terminal Description Type (recommended)

Connection of the 230 V a.c. units (general description):

Connecting the sensorsConnecting the 24 V a.c. units

Electrical connections -

24 V a.c.

Terminal Description Max. load

1 L Supply voltage 24 V a.c.

(Live)

2 N Supply voltage 24 V a.c.

(Neutral)

3 Not used

4 Relay for P3 1.0 A 24 V a.c.

5 24 V a.c. voltage supply for

TR1/TR2

6 M2 Gear motor - open 1.0 A 24 V a.c.

7 M2 Gear motor - close 1.0 A 24 V a.c.

Alt.: Thermo actuator

open/close

8 24 V a.c. voltage supply for

motor output TR3/TR4

9 Relay for pump P1/P2 4.0 A 24 V a.c.

10 24 V a.c. voltage supply for

relay R1

11 Relay for boiler BI 4.0 A 24 V a.c.

12 24 V a.c. voltage supply for

relay R2

13 Relay for boiler BII 4.0 A 24 V a.c.

14 24 V a.c. voltage supply for

relay R3

25 Boiler B III/pump P2 4.0 A 24 V a.c.

26 24 V a.c. voltage supply for

relay R4

28 Boiler IV/Pump P2/P3 4.0 A 24 V a.c.

29 230 V a.c. voltage supply for

relay R5

Connection of the 24 V a.c. units (general description):

Establish the jumper from 16 to common terminal

Cable cross section for sensor connections: Min. 0.4 mm

Total cable length: Max. 50 m (sensors and bus).

NOTE! Cable lengths above 100 m may cause noise sensibility

(EMC).

Cable cross section for voltage conductor: 0.75 - 1.5 mm

Cable length: Max. 50 m.

Electrical connections

Max. 2 x 1.5 mm

cables can be inserted in each screw

terminal.

15 and 16 System device bus

17 and 16 Outdoor sensor ESM-10

18 and 16 Room temperature

sensor ESM-11

19 and 16 Flow temperature ESM-10/ESMC/ESMU/

sensor (mixing circ.) ESMB

20 and 16 Return temperature ESM-11/ESMC/ESMU/

sensor ESMB

21 and 16 Boiler temperature

sensor ESMU

22 and 16 Hot water

temperature sensor ESMU

Terminal Description Type (recommended)

Installation

Placing the temperature

sensors

It is important that the sensors are mounted in the correct

position in your heating system.

Special attention should be paid to the following sensors:

Return temperature sensor

(ESMU, ESM-11 or ESMC types)

The return sensor should always be placed max. 15 cm

from the mixing point. It should always be placed on a pipe

in which the water flow never stops.

Flow temperature sensor, mixing circuit

(ESMU, ESM-11 or ESMC types)

Place the sensor max. 15 cm from the mixing point.

Make sure that the surface of the pipe is clean at the area

where the sensor is mounted.

Do not move the sensor after it has been fastened in

order to avoid damage to the sensor element.

Room temperature sensor

(ESM-10, ECA 60 and 61 remote control)

Place the room sensor in the room where the temperature

is to be controlled. Do not place it on outside walls or close

to radiators, windows or doors.

Hot water temperature sensor

(ESMU or ESMB types)

Place the hot water sensor according to

the manufacturer’s specification.

Installation

Boiler sensor

(ESMU, ESM-11 or ESMC types)

Place the sensor according to the boiler manufacturer’s

specification.

Do not move the sensor after it has been fastened in

order to avoid damage to the sensor element.

Outdoor temperature sensor

(ESM-10 type)

The outdoor sensor should be mounted on that side of the

building where it is less likely to be exposed to direct

sunshine. It should not be placed close to doors, windows

or air outlets.

Installation

Inserting the ECL Card

How to insert your ECL Card the first time

After the power has been switched on, open the lid on the

front side of the controller.

Place the ECL Card with the yellow side facing you. This

enables the controller to read the ECL Card data.

The controller immediately starts to copy the factory

settings and heating system type from the ECL Card. After

copying, the display will show the heating system type the

controller is set to control. After approx. 10 sec. the display

will change to display line C.

The controller is now ready to be set to control your

heating system.

CYp

O9C

110

Line

Circuit

Time

Outdoor

temperature

Desired room

temperature

Installation

Understanding the ECL Card

The ECL Card contains factory settings for a standard

heating system. If the actual heating system differs from

the standard system, the controller must be adjusted

accordingly. After the adjustment, the new settings

should be stored on the ECL Card.

For ECL Card copying and daily use including

adjustment of temperatures and time periods, insert

the ECL Card with the yellow side facing you.

For system set-up adjustments, the grey side of the

ECL Card - the installer’s side - must be facing you.

As a main rule, the ECL Card should always remain in

the controller during service, maintenance and settings.

If the card is removed please note that:

• The controller settings are locked after approx. 10 min.

• The ECL Card must not be exposed to direct heat or

sunshine

If several controllers are installed in the heating system

you can write a title on the ECL Card with a permanent

ink pen.

Software version

for ECL Card

Software version

for controller

0 3 6 9 12 15 18 21 24

913

0904

ONON

Basic set-up

Setting the time and date -

Line A

In case of a power failure which lasts longer than 12 hours,

the time and the date have to be set again.

All other settings are stored as programmed.

The grey side of the ECL Card.

Go to line A.

5609

Actual time

Month, day

Year

Use the shift button to switch between minutes,

hours, year, month and day

Set the correct time and date

Use the yellow side of the ECL Card to enter the day

plan settings.

See User’s Guide, section 4.

Basic set-up

Adjusting the ECL Card

settings

Update of the ECL Card after maintenance and

service

All new settings can be stored on the ECL Card. For

details about copying, see section 34. Insert the ECL

Card with the yellow side facing you.

CYp

O9C

When the copying is finished display line C will appear

0 3 6 9 12 15 18 21 24

913

You can make other changes in the day plan, set time and

date or change settings (see User’s Guide).

General principles

When the controller is connected and operating you

can check and adjust all or some of the basic settings

on the grey side of the ECL Card.

Use the arrow buttons to move from line to line

of the ECL Card, for example line 2:

Line

indicator

Settings to

be adjusted

Value in range

indicator

Circuit

Use the minus/plus buttons to adjust the

settings.

In some displays more than one setting or

value can be adjusted. Use the shift button to

switch between the possibilities.

The circuit selector shifts between circuit I and II

and (hot water).

You can adjust all settings and service

parameters individually in both circuits.

Go to line 9

Accept to copy as indicated. No other keys are

active.

Manual control - Line B

Basic set-up

Check the activation direction of the motorized valve either

by looking at it or by feeling whether the temperature of the

actual pipe changes as expected.

The grey side of the ECL Card.

Go to line B.

Shift to manual mode

Select the unit you want to control. The

selected unit symbol is flashing.

The burners are switched ON and OFF with

the push buttons

and . Each push

starts another step. The burner ON status is

indecated in the middle of the display.

Valves close or open while the

relevant button is pressed.

Pump and burner are switched off or on

when the relevant button is pressed.

ONON

Monitoring temperatures and

system units - Line B

The activity of the motorized valve is shown as arrows

below the valve symbol. When the circulation pump or the

burner is operating, it is indicated as ON below the relevant

symbol.

If a sensor is not mounted or is disconnected, the display

will indicate it as “

- -”.

If the sensor is short-circuited, the display will indicate it as

“

- - - “.

If you are in doubt, remove the controller and check the

ohmic value between the relevant terminals.

Go to line B.

Basic set-up

The grey side of the ECL Card.

0356

ONON

III

Controlled units

Return temperature

Flow

temperature

State indicator

Relationship between temperature and ohmic value

-10°C 961 Ohm

0°C 1000 Ohm

10°C 1039 Ohm

20°C 1078 Ohm

30°C 1117 Ohm

40°C 1156 Ohm

50°C 1195 Ohm

60°C 1234 Ohm

70°C 1273 Ohm

-50

800

900

1000

1100

1200

1300

1400

1500

1600

-25 0 25 50 75 100 125 150

Temperature

Ohm

Push the shift button to see:

- the calculated flow temperature

- the return temperature set points

0356

ONON

Controlled

units

Controller

mode

State

indicator

0356

ONON

III

This operation can be performed in both circuits.

Press the buttom to select circuit II.

Shift away from manual mode.

Note!

The boiler pump P1 must be ON when the burner is ON.

No. of connected

burners

No. of burners ON

Basic set-up

ONON

Setting the heat curve - Line C

Go to line C.

The symbol for the slope of the heat curve

will flash.

Adjust the slope of the heat curve, if required.

Slope

Displacement

Basic set-up

ONON

The grey side of the ECL Card.

Circuit Setting range Factory setting

I/II 0.2 ... 3.4 1.8/0.6

Slope

-20 -10 0 10 20-30

1,4 1,8

1,0

0,6

0,2

2,2

If you want to adjust the parallel displacement

of the heat curve, push the shift button. The

symbol for the parallel displacement will flash.

Make your adjustments.

Circuit Setting range Factory setting

I/II -9... +9 0/0

Parallel displacement

Push button to select circuit II.

Flow temperature limits -

Line 2

The left end of the range indicator flashes.

Adjust the min. limit to your heating system.

Select the max. limit. The right end of the range

indicator flashes.

Adjust the max. limit.

Go to line 2.

Basic set-up

Circuit Setting range Factory setting

I/II 10 ... 110 °C min. 40/10 °C max. 90/50 °C

2 Flow temperature min., max. limits

The grey side of the ECL Card.

0904

ONON

Max. flow

temperature

Min.

flow

temperature

Temperature

range for flow

temperature

Heating cut-out - Line 1

Go to line 1.

Set the outdoor temperature limit at which you

want the heating system to stop.

ONON

Circuit Setting range Factory setting

I/II 10 ... 30 °C 18/18 °C

1 Limit for heating cut-out

The grey side of the ECL Card.

Basic set-up

18 ˚C

This function can save energy by stopping the heating

system when the outdoor temperature gets above a set limit.

The heating system is activated again when the actual

outdoor and the accumulated temperatures get below the set

limit.

The accumulated T

out symbolises the heat stored in the

building.

Temp

Actual T

out

Accumulated T

out

Time

Heating Heating off Heating

Basic set-up

Room temperature

influence - Line 3

The grey side of the ECL Card.

Basic set-up

The room sensor in the reference room registers

the difference between the desired and the ac-

tual room temperature. The flow temperature ref-

erence will be corrected to eliminate this differ-

ence.

B: Reference room control

Used if your heating system is not equipped with radiator

thermostats and you select the room with room sensor as a

temperature reference for the rest of the rooms.

(However, should you have a few radiator thermostats

installed, make sure that they are fully open).

Set a positive value for min. influence and a

negative value for max. influence.

set

Influence

Min. limitation

Max. limitation

ROOM

This section is only relevant if you have installed a room

sensor. There are two basic principles for control of the

room temperature influence:

The max. influence determines how much the

room temperature should influence the flow

temperature.

A: Max. room temperature limitation

Use this limitation if your heating system is fully equipped

with radiator thermostats and you also want to obtain a

max. limitation of the room temperature. The controller will

allow for free heat gains, i.e. solar radiation or heat from a

fire place, etc.

Go to line 3.

Select the max. influence.

The bar below the range indicator flashes in the

right side of the display.

Adjust the max. influence.

ROOM

set

Influence

Max. limitation

Circuit Setting range Factory setting

I/II 0 ... 99/-99 ... 0 min. 0/0 max. -40/-40

3 Room temperature influence

Example

The actual room temperature is 2 degrees too high.

The influence at max. limitation (right corner of the display) is

set to

-40.

The influence at min. limitation (left corner of the display) is

set to 0.

Heat curve H is 1.8.

Result:

The flow temperature reference is changed by

2 x

-40 x 0.1 x H = -14.4 degrees.

Example

The actual room temperature is 2 degrees too low.

The influence at max. limitation (right corner of the display) is

set to

20.

The influence at min. limitation(left corner of the display) is set

to 20.

Heat curve H is 1.8.

Result:

The flow temperature reference is changed by

2 x 20 x 0.1 x H = 7.2 degrees.

The actual room temperature is 2 degrees too high.

The influence at max. limitation (right corner of the display) is

set to

-35.

The influence at min. limitation(left corner of the display) is set

to 20.

Heat curve H is 1.8.

Result:

The flow temperature reference is changed by

2 x (-35) x 0.1 x H = -12.6 degrees.

0-4

ONON

Min.

influence

Max.

influence

Go to line 4.

Boiler control - Line 4

The burner is switched on and off to maintain the

desired mean boiler temperature. Set the difference

between cut-in and cut-out temperature.

1 ... 30: The boiler temperature difference is set

manually to a fixed value according to

the boiler manufacturer’s specification.

Basic set-up

ONON

Circuit Setting range Factory setting

I OFF/1 ... 50 8 K

4 Boiler temperature difference

The grey side of the ECL Card.

ONON

Basic set-up

Setting the PI-regulation

Line 4 - 7

Basic set-up

The grey side of the ECL Card.

Go to line 4.

Setting to be adjusted

Line

indicator

Set the proportional band.

A higher value will result in a stable, but slow

regulation of the flow temperature.

Go to line 5.

Set a high integration time constant to obtain a

slow but stable reaction to deviations.

A small integration constant will make the

controller react fast but with less stability.

Go to line 6.

Set the running time of the motorized valve

according to the example on the opposite page.

This is the time it takes the valve to move from

closed to fully open position.

Go to line 7.

Set the neutral zone to a high value if you can

accept a high variation in flow temperature.

When the actual flow temperature is within the

neutral zone, the controller does not activate the

motorized valve.

Note! The value is symmetrically around the

flow reference value.

Circuit Setting range Factory setting

II 1 ... 250 K 80 K

4 Proportional band

Circuit Setting range Factory setting

II 5 ... 999 sec. 30 sec.

5 Integration time constant

6 Running time of the motorized valve

Circuit Setting range Factory setting

II 5 ... 250 sec. 35 sec.

7 Neutral zone

Circuit Setting range Factory setting

II 0 ... 9 K 3 K

If you want to tune the PI-regulation precisely, you can

use the following method:

• Set the integration time (line 5) to its max. value (999 sec.).

• Decrease the value for the proportional band (Line 4) until

the system starts hunting with a constant amplitude (it might

be necessary to force the system by setting an extreme

value).

• Find the critical time period on the temperature recording or

use a stop watch.

This time period will be characteristic for the system, and you

can evaluate the settings from this critical period.

Integration time = 0.85 x critical time period

Proportional band = 2.2 x proportional band value in the

critical time period.

If the regulation seems to be too slow, you can decrease the

proportional band value by 10 %.

Note! Make sure there is a consumption when you set the

parameters.

Time

Temp

Critical time period

How to calculate the running time of the motorized valve

The running time of the motorized valve is calculated using the

following methods:

Seated Valves

Running time = Valve stroke (mm) x actuator speed (sec/mm)

Example: 5.0 mm x 15 sec/mm = 75 sec.

Rotating Valves

Running time = Turning degrees x actuator speed (sec/degr.)

Example: 90 degrees x 2 = 180 sec.

VS2 15 3.0 AMV 100 90 270

VS2 15...25, VM2 15...25, AMV(E)

VB2 15...20 5.0 10, 20 15 75

VS2 15...25, VM2 15...25,

VB2 15...20 5.0 AMV(E) 30 3 15

VM2 32, VB2 25 7.0 AMV(E) 20 15 105

VM2 32, VB2 25 7.0 AMV(E) 30 3 21

Valve type Valve Actuator Actuator Running

stroke type speed time

(mm) (sec./mm) (sec.)

Basic set-up

Go to line 7.

Circuit Setting range Factory setting

I 1 ... 30 K 6 K

The difference between cut-in temperature and cut-out

temperature during hot water charging.

7 Hot water temperature difference

Set the hot water temperature difference.

ONON

Go to line 6.

The difference between the desired tank temperature and

the charging temperature.

Hot water controller

Line 6-7

Example:

Desired hot water temperature 50 °C

Charging temperature difference 15 K

Charging temperature

(50+15=) 65 °C

Set the difference. Set a high value if you want

the hot water system to reach the desired

temperature in a short period of time.

Select circuit I.

ONON

Circuit Setting range Factory setting

I 1 ... 30 K 15 K

6 Charging temperature difference

The grey side of the ECL Card.

Note! A too high charging temperature might cause

deposits in the heat exchanger.

Basic set-up

Charging temperature difference

Hot water difference

Charging temperature

Desired hot water temperature

Adapting the ECL Comfort controller to the heating

system

Check list

Turn the ECL Card so that the grey side faces

you.

Set the time and the date (Line A)

See section 17

Check all settings referring to the grey side of the

ECL Card

See sections 20 to 27

✓

Control & overviews

To ensure that you have the correct settings see section 10

for examples of different heating systems.

If your heating system differes from the diagram shown

on the overleaf of the cover, you should check and perhaps

alter the following service parameters.

Line

24 Gear motor/thermo actuator (circuit II)

51 Diverting valve/charging pump (circuit I)

Check list

✓

Is the ECL Comfort controller ready for use?

Make sure that the power supply is connected to

terminals 1 (Live) and 2 (Neutral).

See section 12

Check that valves and pumps are connected to

the correct terminals.

See section 12

Check that all sensors are connected to the

correct terminals.

Mount the controller, and switch on the power.

Insert the ECL Card with the yellow side facing

you and push

, if necessary.

See section 15

Select manual operation in the controller mode.

See section 2 in the user’s guide.

Check that valves open and close, and that

burner and pumps start andstop when operated

manually.

See section 19

Check that the temperatures shown in display

A and B match the actual sensors, both for

circuit I and circuit II.

See section 1 in the user’s guide.

Control & overviews

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Danfoss ECL Comfort 300 - C75 Operating instructions

Danfoss ECL Comfort 300 - C75 Operating instructions

Danfoss ECL Comfort 300 - C75 Operating instructions

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