Danfoss ECL Comfort 300 - C14 Operating instructions

Brand: Danfoss

Model: ECL Comfort 300 - C14

Type: Operating instructions

How to use this guide

This guide is divided into two parts:

• Daily Use (Turn the guide over)

Yellow sections 01 - 09

• 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 and cooling systems.

The ECL Comfort ensures you of the following;

• The room temperature will be adjusted to your personal

settings.

• Lower temperatures and lower energy consumption

reduce costs and ensure optimum use of energy

resources.

Sketch an outline of your application

The ECL Comfort controller is designed for a wide range

of heating and cooling systems with different configurations

and capacities.

If your 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.P1.02

Click here to see the cover

Installation

Connections

Identifying your 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 Unit heater system with constant room

temperature control

Establish these jumpers:

Jumper from 1 to 5

Jumper from 5 to10

Jumper from 10 to 12

Jumper from 2 to common N-terminal

Control principle:

PI control of the flow temperature (S3) and P control of the

room temperature (S2). The flow temperature is held at a

constant level by the motorised valve M1. The P1 fans are

controlled by relay R1, and the circulation pump P2 by

relay R2.

System settings:

Line Description Recommended

setting

C Balance temperature 60°C

2 Flow/fan temperature limit min/max 30°C/90°C

85 Application selection 0

89 Relay output status R2 0

Terminal Description Max. load

1 L Supply voltage 230 V a.c.

(Live)

2 N Supply voltage 230 V a.c.

(Neutral)

3 M1 Gear motor - open 0.2 A 230 V a.c.

4 M1 Gear motor - close 0.2 A 230 V a.c.

5 230 V a.c. supply for M1

9 P1 Fan 4(2)A 230 V a.c.

10 230 V a.c. supply for fan relay

11 P2 Circulation pump 4(2)A 230 V a.c.

12 230 V a.c. supply for

circulation pump

Installation

Connections

Identifying your system type

Installation

10.2 Ventilation system with constant supply air

temperature control

Establish these jumpers:

Jumper from 1 to 5

Jumper from 5 to 10

Jumper from 10 to 12

Jumper from 2 to common N-terminal

Control principle:

PI control of supply air temperature (S3). The temperature is

held at a constant level by the motorised valve M1 in the

primary circuit of the heat exchanger. Fan P1 is controlled

by relay R1, damper P2 by relay 2.

System settings:

Terminal Description Max. load

1 L Supply voltage 230 V a.c.

(Live)

2 N Supply voltage 230 V a.c.

(Neutral)

3 M1 Gear motor - open 0.2 A 230 V a.c.

4 M1 Gear motor - close 0.2 A 230 V a.c.

5 230 V a.c. supply for M1

9 P1 Fan 4(2) A 230 V a.c.

10 230 V a.c. supply for fan relay

11 P2 Damper 4(2) A 230 V a.c.

12 230 V a.c. supply for damper

relay

Line Description Recommended

setting

85 Application selection 0

87 R2 relay cut-in delay 180 sec.

Installation

Connections

Identifying your system type

Installation

10.3 Ventilation system with constant room

temperature control

Establish these jumpers:

Jumper from 1 to 5

Jumper from 5 to 10

Jumper from 10 to 12

Jumper from 2 to common N-terminal

Control principle:

PI control of supply air temperature (S3) and P control of

the room temperature (S2). The temperature is held at a

constant level by the motorised valve M1 in the primary

circuit of the heat exchanger. Fan P1 is controlled by relay

R1, damper P2 by relay 2.

System settings:

Line Description Recommended

setting

C Balance temperature 23 °C

85 Application selection 0

87 R2 relay cut-in delay 180 sec.

Terminal Description Max. load

1 L Supply voltage 230 V a.c.

(Live)

2 N Supply voltage 230 V a.c.

(Neutral)

3 M1 Gear motor - open 0.2 A 230 V a.c.

4 M1 Gear motor - close 0.2 A 230 V a.c.

5 230 V a.c. supply for M1

9 P1 Fan 4(2)A 230 V a.c.

10 230 V a.c. supply for fan relay

11 P2 Damper 4(2)A 230 V a.c.

12 230 V a.c. supply for damper

relay

Installation

Connections

Identifying your system type

Installation

10.4 Ventilation system heating and mixed air

dampers

Establish these jumpers:

Jumper from 1 to 5

Jumper from 5 to 8

Jumper from 8 to 10

Jumper from 2 to common N-terminal

Control principle:

PI control of supply air temperature (S3) and P control of

the room temperature (S2) with a neutral zone between

heating and mixing. When heating, the temperature is held

at a constant level by the motorised valve M1 in the primary

circuit of the heat exchanger. When mixing, the temperature

is held at a constant level by the actuator M2 which controls

the dampers. Fan P1 is controlled by relay R1. (Note: It is

not possible to set any minimum damper position from the

controller).

System settings:

Line Description Recommended

setting

C Balance temperature 23 °C

1 Dead zone - Dz OFF

85 Application selection 2

Terminal Description Max. load

1 L Supply voltage 230 V a.c.

(Live)

2 N Supply voltage 230 V a.c.

(Neutral)

3 M1 Gear motor - open 0.2 A 230 V a.c.

4 M1 Gear motor - close 0.2 A 230 V a.c.

5 230 V a.c. supply for M1

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

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

8 230 V a.c. supply for M2

9 P1 Fan 4(2) A 230 V a.c.

10 230 V a.c. supply for fan relay

Installation

Connections

Identifying your system type

Installation

10.5 Ventilation system heating and cooling

Establish these jumpers:

Jumper from 1 to 5

Jumper from 5 to 8

Jumper from 8 to 10

Jumper 10 to 12

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 M1 Gear motor - open 0.2 A 230 V a.c.

4 M1 Gear motor - close 0.2 A 230 V a.c.

5 230 V a.c. supply for M1

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. supply for M2

9 P1 Fan 4(2)A 230 V a.c.

10 230 V a.c. supply for fan relay

11 P2 Damper 4(2)A 230 V a.c.

12 230 V a.c. supply for damper

relay

Control principle:

PI control of supply air temperature (S3) and P control of

the room temperature (S2) with a neutral zone between

heating and cooling. When heating, the temperature is held

at a constant level by the motorised valve M1 in the primary

circuit of the heat exchanger. When cooling, the

temperature is held at a constant level by the motorised

valve M2 in the primary circuit of the heat exchanger. Fan

P1 is controlled by relay R1, damper P2 by relay 2.

System settings:

Line Description Recommended

setting

1 Dead zone - Dz 2 K

2 Flow/fan temperature limit min/max 10 °C/50 °C

85 Application selection 2

Installation

Connections

Identifying your system type

Installation

10.6 Ventilation system heating and heat

recovery

Establish these jumpers:

Jumper from 1 to 5

Jumper from 5 to 8

Jumper from 8 to 10

Jumper from 2 to common N-terminal

Control principle:

PI control of supply air temperature (S3) and P control of

room temperature (S2) with a neutral zone between

heating and recovery. When heating, the temperature is

held at a constant level by the motorised valve M1 in the

primary circuit of the heat exchangers. At heat recovery, the

temperature is held at a constant level by the actuator M2

which controls the dampers. Fan P1 is controlled by

relay R1.

System settings:

Line Description Recommended

setting

1 Dead zone - Dz OFF

85 Application selection 2

Terminal Description Max. load

1 L Supply voltage 230 V a.c.

(Live)

2 N Supply voltage 230 V a.c.

(Neutral)

3 M1 Gear motor - open 0.2 A 230 V a.c.

4 M1 Gear motor - close 0.2 A 230 V a.c.

5 230 V a.c. supply for M1

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

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

8 230 V a.c. supply for M2

9 P1 Fan 4(2)A 230 V a.c.

10 230 V a.c. supply for fan relay

11 P2 Damper 4(2)A 230 V a.c.

12 230 V a.c. supply for damper

Installation

Connections

Identifying your system type

Installation

10.7 Refigeration system with constant brine

temperature

Establish these jumpers:

Jumper from 1 to 8

Jumper from 8 to 10

Jumper from 2 to common N-terminal

Control principle:

PI control of brine temperature (S3). The brine temperature

is held at a constant level by the motorised valve M1. The

circulation pump P1 is controlled by relay R1.

System settings:

Terminal Description Max. load

1 L Supply voltage 230 V a.c.

(Live)

2 N Supply voltage 230 V a.c.

(Neutral)

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. supply for M2

9 P1 Circulation pump 4(2)A 230 V a.c.

10 230 V a.c. supply for pump

relay

Line Description Recommended

setting

C Balance temperature 0 °C

2 Flow/fan temperature limit min/max -20/50 °C

85 Application selection 1

86 R1 relay cut-in delay 0 sec.

Installation

Connections

Identifying your system type

Installation

10.8 Refrigeration with constant room temperature

Establish these jumpers:

Jumper from 1 to 8

Jumper from 8 to 10

Jumper from 10 to 12

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)

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. supply for M2

9 P1 Fan 4(2)A 230 V a.c.

10 230 V a.c. supply for fan relay

11 P2 Circulation pump 4(2)A 230 V a.c.

12 230 V a.c. supply for pump

relay

Control principle:

PI control of the brine temperature (S3) and P control of the

room temperature (S2). The room temperature is held at a

constant level by the motorised valve M2. The circulation

pump is controlled by relay R2 and fan P1 by relay R1.

System settings:

Line Description Recommended

setting

C Balance temp. +17 °C

2 Flow/fan temperature limit min/max -20/50 °C

85 Application selection 1

Mounting the 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 wall mounting: 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.

Installation

Connecting temperature sensors

Establish the jumper from 16 to common terminal

Connecting the 230 V a.c. units (general description)

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 into each screw

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).

15 and 16 System device bus

17 and 16 Compensation

temp. sensor (S1) ESM-10/ESM-11

18 and 16 Room temperature

sensor (S2) ESM-10

19 and 16 Flow/air duct ESM-11/ESMB/

temp. sensor (S3) ESMC/ESMU

20 and 16 Return temperature ESMU/ESM-11/

sensor (S4) ESMC

21 and 16 External override (S5) ECA 9010

22 and 16 Frost sensor (S6) Kp 61/ESM-

Terminal Description Type (recommended)

1 L Voltage supply 230 V a.c.

2 N Voltage supply 230 V a.c.

3 M1 Gear motor - open max. 0.2 A 230 V a.c.

4 M1 Gear motor - close max. 0.2 A 230 V a.c.

5 230 V a.c. supply for M1

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

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

8 230 V a.c. supply for M2

9 P1 Pump/fan/damper max. 4(2)A 230 V a.c.

10 230 V a.c. supply for R1

11 P2 Pump/fan/damper max. 4(2)A 230 V a.c.

12 230 V a.c. supply for R2

13 P3 Optional max. 4(2)A 230 V a.c.

14 230 V a.c. supply for R3

Terminal Description Max. load

Connecting temperature sensorsConnecting the 24 V a.c. and 230 V a.c. units (general

description)

Electrical connections -

24 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 into each screw

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).

1 L Voltage supply 24 V a.c.

2 N Voltage supply 24 V a.c.

3 M1 Gear motor - open max. 1.0 A 24 V a.c.

4 M1 Gear motor - close max. 1.0 A 24 V a.c.

5 24 V a.c. supply for M1

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

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

8 24 V a.c. supply for M2

9 K1 Relay for

pump/fan/damper max. 4(2)A 230 V a.c.

10 24 V a.c. supply for R1

11 K2 Relay pump/fan/damper max. 4(2)A 230 V a.c.

12 24 V a.c. supply for R2

13 K3 Optional relay max. 4(2)A 230 V a.c.

14 24 V a.c. supply for R3

Terminal Description Max. load

15 and 16 System device bus

17 and 16 Compensation

temp. sensor (S1) ESM-10/ESM-11

18 and 16 Room temperature

sensor (S2) ESM-10

19 and 16 Flow/air duct ESM-11/ESMB/

temp. sensor (S3) ESMC/ESMU

20 and 16 Return temperature ESMU/ESM-11/

sensor (S4) ESMC

21 and 16 External override (S5) ECA 9010

22 and 16 Frost sensor (S6) Kp 61/ESM-

Terminal Description Type (recommended)

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/air duct temperature sensor

Place the sensor close to the exchanger.

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.

Outdoor temperature sensor

(ESM-10 type)

The outdoor sensor should be mounted on the north side of

the building where it is less likely to be exposed to direct

sunshine. It should not be placed close to doors or

windows.

Installation

Understanding the ECL Card

The ECL Card contains factory settings for a standard

application. If the actual application differs from the

standard system, the ECL 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 card must not be exposed to direct heat or

sunshine

If several controllers are installed in the system you can

write a title on the ECL Card with a permanent ink pen.

Line

Circuit

Time

Outdoor

temperature

(S1)

Desired room/

duct temperature

CYp

O9C

C41

01 101

0 3 6 9 12 15 18 21 24

023

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 card data.

The controller immediately starts to copy the factory

settings and heating system type from the 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 C.

The controller is now ready to be set to control your

heating system.

Installation

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.

56019

Actual time

Month, day

Year

Use the shift button to switch between hours,

minutes, year, month and day

Set the correct time and date

Use the yellow side of the card to enter the day plan

settings.

See User’s Guide, section 4.

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 C will appear

0 3 6 9 12 15 18 21 24

023

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

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

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. You can adjust all settings and service

parameters individually in both circuits, ie.

circuit II.

Go to line 9

Accept to copy as indicated. No other keys are

active.

Basic set-up

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:

Manual control - Line B

Basic set-up

Check the turning direction of the motorized valve either by

looking at it or by feeling whether the temperature of the

actual pipe changes as expected.

Note! In manual control the pump motion programme is

switched off.

The grey side of the ECL Card.

Go to line B.

Select the unit you want to control.

The selected unit symbol will flash.

Valves close or open while

the relevant button is pressed.

Pumps/fans/dampers are switched off

or on when the relevant button is pressed.

Monitoring temperatures and

system units - Line B

Go to line B.

The activity of the motorized valve is shown as arrows

below the valve symbol. When the circulation pump or fan

is operating, it is indicated as ON below the pump 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.

The grey side of the ECL Card.

Controlled units

State indicator

Frost temperature

(S6)

Compensation

temperature (S1)

Push the shift button to see the calculated flow

and return temperature set points.

Controlled

units

Controller mode

Basic set-up

Shift to manual mode

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

Alarm

Alarm indications:

0 : No alarm

1 : Alarm sensor S1 - frost, fire

2 : Alarm sensor S2 - frost

3 : Alarm sensor S3 - frost

4 : Alarm sensor S4 - frost

5 : Not used

6 : Alarm sensor S6 - frost

The grey side of the ECL Card.

The balance temperature is the basis of the air/

water flow temperature reference, and when the

room sensor is connected, the flow/air

temperature reference varies around the

balance temperature set-point.

The flow/air temperature reference equals the

sum of the balance temperature + the influence

of different inputs (room, return, compensation).

Basic set-up

Setting range Factory setting

-20 to 110°C 20 °C

Balance temperature

Set the temperature that fits your system.

Dead zone - Dz

The grey side of the ECL Card.

Go to line 1.

Balance temperature

Go to line C

Dead zone - Dz

Setting range Factory setting

OFF, 0.5 - 25.0 OFF

OFF: No dead zone between cooling and

heating.

0.5 - 25.0: This setting is only used in

connection with 2-stage heating or

heating/cooling applications. The

room temperature influence is

cancelled in the dead zone - Dz.

Inheating/cooling applications this

setting protects against unwanted

changes to/from heating and cooling.

Flow/fan temperature limits -

Line 2

The grey side of the ECL Card.

Go to line 2.

Max. flow

temperature

Min. flow

tempera-

ture

Temperature

range for the

flow temperature

Adjust the min. limit of your heating system. The

left end of the range indicator flashes.

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

indicator flashes.

Adjust the max. limit of your heating system.

Basic set-up

Setting range Factory setting

-20 ... 110° C min. 20 °C max. 50 °C

2 Flow temperature min., max. limits

Room temperature influence -

The grey side of the ECL Card.

Go to line 3.

Room

temperature

influence

Set the influence that fits your system.

This setting is only relevant if you have installed a room

sensor. The room sensor registers the difference between

desired and actual room temperature. The flow/air

temperature reference is displaced (the influence is added

to the balance temperature) to eliminate the difference.

Room temperature influence

Setting range Factory setting

0.0 - 25.0 5.0

Setting the PI-regulation -

Line 4-7

(circuit I - Heating)

(circuit II - Cooling)

The grey side of the ECL Card.

Go to line 4.

Setting to be adjusted

The bar shows the

setting

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 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 motorised 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

motorised valve.

Circuit Setting range Factory setting

I/II 1 ... 250 K 80 K/80 K

4 Proportional band

Circuit Setting range Factory setting

I/II 5 ... 999 sec. 30 sec./30 sec.

5 Integration constant

6 Running time of the motorized valve

Circuit Setting range Factory setting

I/II 5 ... 250 sec. 35 sec./35 sec.

Basic set-up

7 Neutral zone

Circuit Setting range Factory setting

I/II 0 ... 9 K 3 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

Check list

✓

Control & overviews

Check list

✓

Control & overviews

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 Electrical connections

Check that valves, pumps, fan and dampers are

connected to the correct terminals.

See section 12 Electrical connections

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.

See section 15 Inserting the ECL Card

Select manual operation in the controller mode.

See section 3 in the User’s Guide.

Check that valves open and close, and that

pumps, fans and dampers start and stop when

operated manually.

See section 19 Manual control.

Check that the temperatures shown in display A

and B match the actual sensors in circuit I as

well as in circuit II.

See section 1 in the User’s Guide.

Adapting the ECL Comfort controller to the heating

system

To ensure that you have the correct settings, see section 10

Identifying your heating system for examples of different

heating systems

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 on the grey side of the

ECL Card

See sections 20 to 26.

Check the settings mentioned in section 10.1

and 10.8 has been set correctly.

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Danfoss ECL Comfort 300 - C14 Operating instructions

Danfoss ECL Comfort 300 - C14 Operating instructions

Danfoss ECL Comfort 300 - C14 Operating instructions

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