Danfoss L66 User Manual

L66

L66

VI.JD.T2.02

2006.12

VI.JD.T2.02

2006.12

www.danfoss.com

User's Guide 

Installer's Guide 

www.danfoss.com

ECL Comfort

Installer's Guide

ECL Comfort

User's Guide

*087R8172*

*VIJDT202*

*087R8172*
*VIJDT202*

(

)

Mixing and DHW controller

The shown diagram is a fundamental and simplified example and
does not contain all components that are necessary in a system.

If the system you are about to install differs from the shown
diagram of a standard heating system, feel free to sketch an
outline for comparison. Adaptation of systems, see section 10.

Circuit

indicator

Circuit

selector

Shift

button

Adjust-

ment

Controller

mode

List of components:

ECL Comfort 301

S1 Outdoor temperature sensor

S3 Flow temperature sensor

S4 Return temperature sensor, circuit I

S5 DHW flow temperature sensor, circuit II

S6 DHW return temperature sensor, circuit II

P1-1 Circulation pump 1, heating, circuit I

P2-1 Circulation pump 2, heating, circuit I

P1-2 ECA 73 / 80 / 86, circulation pump 1, DHW, circuit II

P2-2 ECA 73 / 80 / 86, circulation pump 2, DHW, circuit II

M1 Motorized control valve, circuit I

M2 Motorized control valve, circuit II

This guide is associated with ECL Card 087B4875

Installer:

By:

Date:

Controller mode

Manual operation (used only at maintenance

and service)

Scheduled operation

Constant comfort temperature

Constant setback 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 the circuits.

Safety Note

To avoid injury of persons and damages to the device, it is absolutely

necessary to read and observe these instructions carefully.

Necessary assembly, start-up, and maintenance work must be performed by

qualified and authorized personnel only.

Display indications, controlled units, L66

1

1

ON

2

ON

2

3

ON

A B C D E

A: P1-1 Blank = OFF ON = ON

B: M1 = Opens = Closes

C: P2-1 Blank = OFF ON = ON

D: M2 = Opens = Closes

E: R3 Blank = OFF ON = ON

Table of Contents

Sections in the Installer’s Guide

The documentation for the ECL Comfort controller is
composed of numbered sections. Only sections relevant to
your ECL Comfort controller are included here.

Before you start

Installation

10 Identifying the system type
11 Mounting the ECL Comfort controller
12 Electrical connections 230 V a.c.
14 Connecting and 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
26 Control parameters - lines 4-7

Control & Overviews

29 Check list
30 ECL Card settings
31 Service parameters

Extended Service

32 Adjusting the service parameters

Miscellaneous

34 Copying with the ECL Card

User's Guide (turn the guide over for sections 1-7)

1 Choose your favorite display
2 Select circuit mode
3 Set your room and DHW temperature
4 Set your personal schedule
5 Advantages of the ECL Card
6 Hot points
7 Definitions

VI.JD.T2.02

Card L66

2006.12

Sketch your application

The ECL Comfort controller series is designed for a wide
range of heating, domestic hot-water (DHW) and cooling
systems with different configurations and capacities.
If your system differs from the diagrams shown in section
10, you may want to make a sketch 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.

The controller is pre-programmed with factory settings that are
shown in the relevant sections of this guide.

However, you might come across some settings that are not listed
in this instruc tion. These settings could be related either to recent
updates or the use of optional modules (which are described in
the instructions in question).

How to use this guide

This guide is divided into two parts:

• User’s Guide: Yellow sections 1-7

• Installer's Guide: Grey sections 10 and onwards

The application L66 is very flexible. These are the basic principles:

Both circuits can control two pumps.

Heating :
Typically, the flow temperature is adjusted according to your
requirements.
The flow temperature sensor (S3) is the most important sensor.
The desired flow temperature at S3 is calculated in the ECL
controller, based on the outdoor temperature (S1). The lower the
outdoor temperature, the higher the desired flow temperature.
The motorized control valve (M1) is opened gradually when the
flow temperature is lower than the desired flow temperature and
vice versa.
The return temperature (S4) to the district heating supply should
not be too high. If so, the desired flow temperature can be
adjusted (typically to a lower value), thus resulting in a gradual
closing of the motorized control valve. In boiler-based heating
supply the return temperature should not be too low (same
adjustment procedure as above).
If the measured room temperature does not equal the desired
room temperature, the desired flow temperature can be adjusted.
Circulation pumps are ON when the desired flow temperature is
higher than 20 °C or the outdoor temperature is lower than 2 °C.

DHW:
If the measured DHW temperature (S5) is lower than the desired
DHW temperature, the motorized control valve (M2) is opened
gradually and vice versa.
If the desired DHW temperature cannot be reached, the heating
circuit can be closed gradually.

Before you start

Installation

Installation

The ECL Comfort controller is a universal controller that can
be used for various systems. Based on the shown standard
systems, it is possible to configure additional systems.

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 with your system and make
your own combinations.

The functions can only be realized with ECL Comfort 301 and as of
controller version 2.00.

10.1 Indirectly connected heating system and DHW
circuit

System diagrams in this instruction are principal drawings and do
not contain all components which are necessary in your systems.

Identifying the system type

10a

10.2 Directly connected heating system and
indirectly connected DHW circuit

10b

Installation

Installation

For easy access, you should mount the ECL Comfort
controller near the system. 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 93 x 139 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.

Mounting the ECL Comfort
controller

11a

11b

Installation

Installation

12a

230 V a.c. connections - without safety thermostat

230 V a.c. connections - with safety thermostat

This circuit diagram is only valid if Danfoss actuators are used

The relays are to be connected as in the drawing without
safety thermostat.

Electrical connections ­230 V a.c. - in general

Terminal Description Max. load

1 L Supply voltage 230 V a.c.
2 N Supply voltage 230 V a.c.
3 M1 Actuator - open, circuit I 0.2 A / 230 V a.c.

4 M1

Actuator - close, circuit I
alt. thermo actuator

0.2 A / 230 V a.c.

5

230 V a.c. supply voltage for M1,

circuit I
6 M2 Actuator - open, circuit II 0.2 A / 230 V a.c.
7 M2 Actuator - close, circuit II 0.2 A / 230 V a.c.

8

230 V a.c. supply voltage for M2,

circuit II

9 P1-1

Circulation pump I for heating,

circuit I

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

10

230 V a.c. supply for pump relay

R1

11 P2-1

Circulation pump II for heating,

circuit I

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

12

230 V a.c. supply for pump relay

R2

13 R3 Alarm relay 4 (2) A / 230 V a.c.

14

230 V a.c. supply for alarm relay

R3

25 P1-2

Circulation pump I for DHW,

circuit II

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

26

230 V a.c. supply for pump relay

R4

28 P2-2

Circulation pump II for DHW,

circuit II

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

29

230 V a.c. supply for pump relay

R5

Wire cross section: 0.75 - 1.5 mm

2

Electrical connections

Max. 2 x 1.5 mm2 wires can be inserted into each screw terminal.

Incorrect connection can damage the TRIAC outputs. Max. load
(terminals 3, 4, (6 and 7)) 0.2 A / 230 V a.c.!

12b

Installation

Installation

Connecting the temperature sensors and the bus

Terminal Description Type (recomm.)

15 and 16 System device bus*,

connections for room
panel** / remote control** /
(relay module)

ECA 60 / 62
ECA 61 / 63

17 and 16 S1 Outdoor temperature

sensor

ESMT

18 and 16 S2

R

alarm

19 and 16 S3 Flow temperature sensor,

circuit I

ESM-11 / ESMC /
ESMU

20 and 16 S4 Return temperature sensor,

circuit I

ESM-11 / ESMC /
ESMU

21 and 16 S5 DHW flow temperature

sensor, circuit II

ESM-11 / ESMC /
ESMU

22 and 16 S6 DHW return temperature

sensor, circuit II

ESM-11 / ESMC /
ESMU

* The system device bus / room panel / rem ote control is only ac tive
when the outdoor temperature sensor is conne cted.
** Either room panel or remote control

Establish the jumper from 16 to common terminal.

Wire cross section for sensor connections:
Min. 0.4 mm

2

Total cable length: Max. 125 m (all sensors incl. system device

bus)

Cable lengths of more than 125 m may cause noise sensibility
(EMC).

Terminals 16 and 18

External circuit for alarm contact:
Rx and Ry are external alarm relay contacts, i.e. pressure controlled
switches.. The contacts should be gold-plated. The resistance in
the contacts must be lower than 10 ohm (operating conditions
5 V and 1.7 mA).

Connecting and placing the
temperature sensors

14a

Terminal 16 Terminal 18

-> Alarm input circuit I

-> Alarm input circuit II

It is important that the sensors are mounted in the correct
position in your system.

The temperature sensor mentioned below are sensors used
for the ECL Comfort 200 and 300 series which not all will be
needed for your application!

Outdoor temperature sensor (ESMT)

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.

Flow temperature sensor (ESMU, ESM-11 or ESMC)

Place the sensor max. 15 cm from the mixing point. In
systems with heat exchanger, Danfoss recommends that the
ESMU-type to be inserted into the exchanger flow outlet.

Make sure that the surface of the pipe is clean and even
where the sensor is mounted.

Return temperature sensor (ESMU, ESM-11 or ESMC)

The return sensor should always be placed in / on a pipe with
return water flow.

Room temperature sensor (ESM-10, ECA 60 / 62 room
panel or ECA 61 / 63 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.

DHW temperature sensor (ESMU or ESMB-12)

Place the DHW temperature sensor according to the
manufacturer’s specification.

Boiler temperature sensor (ESMU, ESM-11 or ESMC)

Place the sensor according to the boiler manufacturer’s
specification.

Flow / air duct temperature sensor (ESM-11, ESMB-12,
ESMC or ESMU types)

Place the sensor so that it measures a representative
temperature.

Slab temperature sensor (ESMB-12)

Place the sensor in the slab.

Valid for ESM-11: Do not move the sensor after it has been
fastened in order to avoid damage to the sensor element.

14b

Installation

Installation

Comfor t Setbac k

Red

Brown

Green S1 .. . S6 (C14 = S5 only)

14c

Connecting the room panel / remote control

The ECA 60 / 61 / 62 / 63 is activated by the setting in line 10
(section 32).

The ECA 60 / 61 / 62 / 63 is powered by the system device bus
which means that the bus must be active. The bus is activated by
setting the controller address to 15 (section 32, line 199).

Override

For an active override, you have to choose the mode
“scheduled operation”! Input S1 ... S6 (ECL Card C14 only uses
S5) can be used for override purposes (section 32, line 141).

Connection example without ECA 9010

If the override switch has goldplated contacts, you can
choose one of the following solutions or a combination of
both:

(C14 = 21 only) (C14 = 21 only)

Closed switch: Closed switch:
Comfort temperature Setback temperature

Open switch: Open switch:
Scheduled operation Scheduled op eration

Connection example with ECA 9010

The ECA 9010 module is powered by the system device bus,
which means that the bus must be active. The bus is activated
by setting the controller address to 15 (line 199). To avoid
influence from contact resistance, the use of ECA 9010 is
recommended.

Comfor t Setbac k

Red

Brown

Green S1 .. . S6 (C14 = S5 only)

Installation

Installation

Understanding the ECL Card

The ECL Card contains factory settings for a standard
system. If the actual 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 schedules, 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 setting.

If the card is removed or left in the controller with the grey
side facing you, please note that:

• After approx. 25 min.:

- The controller cannot be operated.

- The controller reverts to display C (section 1).

• The ECL 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.

Do not remove the ECL Card while copying. The data on the
ECL Card can be damaged!

When you store your personal settings on your ECL Card, the
factory settings will be overridden.

15b

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 application type
and factory settings from the ECL Card. After copying, the
display will show you the application type. After approx. 10
sec. the display will change to display line C.

Display example:

Software

version, ECL

Card

Line

Circuit

Time

Outdoor

temp.

C

C 99

Y

0

P

C 73

05 109

8

0 3 6 9 12 15 18 21 24

1

023

5

C

3

Application t ype

Software version,
controller

Desired room temp.

The controller is now ready to be set to control your system.

If the display keeps showing CPY, see section 34b.

Inserting the ECL Card

15a

The grey
side of the
ECL Card

Basic set-up

The grey

side of the

ECL Card

Basic set-up

General principles

When the controller is connected and operating you can
check and adjust all or some of the basic settings. Turn the
ECL Card so that the grey side is facing you (see the example
below).

Use the arrow buttons to move from line to line of
the ECL Card, for example line 2:

Circuit

Line

Setting

to be

adjusted

1

1

ON

2

ON

09

2

04

2

3

ON

Value in range indicator

Use the plus / minus 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 options.

The circuit selector shifts between circuit I
and II. You can adjust all settings and service
parameters individually.

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.

Adjusting the ECL Card
settings

16

Actual time

Year

07

01

2 220

5

A

3

1

Month, day

Use the shift button to switch between minutes,
hours, years, months and days.

Set the correct time and date.

In case of a power break, which lasts longer than 12 hours, the
time and the date have to be set again. All other settings are
stored as programmed.

Use the yellow side of the card to change the schedules.

See User’s Guide, section 4.

Setting the time and date ­line A

17

The grey
side of the
ECL Card

Basic set-up

The grey

side of the

ECL Card

Basic set-up

Controlled units

Flow

temp.

(S3)

5 036

B

2

ON

1

1

ON

3

ON

2

Return temp.
(S4)

Push and hold the shift button to see:

- the calculated flow temperature

- the desired return temperature limitation.

This display can also show the actual and desired flow and return
temperatures for circuit II.

The activity of the motorized control valve is shown as arrows
below the valve symbol. When the circulation pump 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.

Relationship between temperature and ohmic value

-50

800

900

1000

1100

1200

1300

1400

1500

1600

-25 0 25 50 7

5 100 125 150

°C

Ω

Ω

805
845

883

922

961
1000
1039
1078
1117
1155
1194
1232
1271
1309
1347
1385
1423
1462
1501
1539
1578

°C

-50

-40

-30

-20

-10
0

10
20
30
40
50
60
70
80

90
100
110
120
130
140
150

Monitoring temperatures
and system units - line B

18

Shift to manual mode.

Controlled units

5 036

B

2

ON

1

1

ON

3

2

Controller mode

Choose the unit you want to control. The selected
unit symbol will blink.

Controlled units are switched OFF or ON when
the relevant button is pushed.

The motorized actuator (gear motor)

closes or opens the controlled unit as long as
the relevant button is pushed. If pushed for more
than 3 seconds, the actuator continues to close or
open the valve.

The thermo actuator

activates the valve as long as the button is
pushed. If pushed for more than 3 seconds, the
actuator continues to open the valve.

Check the activation direction of the actuator either by
looking at it or by feeling whether the temperature of the
actual pipe changes as expected.

This operation applies to both circuits, if available.

During manual operation, all control functions are deactivated.

Manual control ­line B

19