Danfoss ECL Comfort C25 User Manual
C25
C25
VI.7C.I4.02
2005.09
VI.7C.I4.02
2005.09
www.danfoss.com
User's Guide
Installer's Guide
www.danfoss.com
ECL Comfort
Installer's Guide
ECL Comfort
User's Guide
*087R8006*
*VI7CI402*
*087R8006*
*VI7CI402*
Burner control with ON/OFF DHW control
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.
List of components:
ECL Comfort 300
S1 Outdoor temperature sensor
S2 Room temperature sensor
S4 Return temperature sensor
S5 Boiler temperature sensor
S6 DHW temperature sensor
P1 Circulation pump, boiler
P2 Circulation pump, DHW
P3 Burner
Circuit
indicator
Circuit
selector
Shift
button
Adjust-
ment
Controller
mode
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.
This guide is associated with ECL Card 087B4770
Installer:
By:
Date:
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.
13 Electrical connections 24 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
24 Boiler control - line 4
27 DHW control - lines 1-2
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.7C.I4.02
Card C25
2005.09
Sketch your application
The ECL Comfort controller series is designed for a wide
range of heating, hot-water 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 C25 is very flexible. These are the basic
principles:
Heating:
Typically, the flow temperature is always adjusted according to
your requirements.
The flow temperature sensor (S5) is the most important sensor.
The desired flow temperature at S5 is calculated in the ECL
controller based on the outdoor temperature (S1). The lower the
outdoor temperature, the higher the desired flow temperature.
The boiler is switched ON when the flow temperature is lower
than the desired flow temperature and vice versa. A switching
difference determines the ac tion.
The return temperature (S4) to the boiler should not be too low.
If so, the desired flow temperature can be adjusted, typically to a
higher value.
If the measured room temperature does not equal the desired
room temperature, the desired flow temperature can be adjusted.
DHW:
If the measured DHW temperature is lower than the desired DHW
temperature, the desired flow temperature at S5 is increased in
order to heat the DHW. DHW heating has priority, i.e. pump P2 is
ON and pump P1 is OFF (or changeover valve is activated and P1
is still ON).
Before you start
Installation
Identifying the system type
10a
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 300 and as of
controller version 1.04.
10.1 Heating system with constant temperature
control of the DHW circuit
System settings
Circuit Line Description Recomm.
setting
I 51
DHW charging pump /
changeover valve
OFF
System diagrams in this instruction are principal drawings and do
not contain all components which are necessary in your systems.
Installation
10b
10.2 Heating system with constant temperature
control of the DHW circuit (DHW priority)
System settings
Circuit Line Description Recomm.
setting
I 51
DHW charging pump /
changeover valve
ON
10.3 Weather compensated control of the
heating system
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
Installation
11b
Installation
230 V a.c. connections
Establish these jumpers:
1-10-12-14
and jumper 2 to common N-terminal
Terminal Description Max. load
1 L Supply voltage 230 V a.c.
2 N Supply voltage 230 V a.c.
9 P1 Circulation pump for boiler 4 (2) A / 230 V a.c.
10 230 V a.c. supply for P1
11 P2
Circulation pump /diverting
valve for DHW
4 (2) A / 230 V a.c.
12 230 V a.c. supply for P2
13 P3 Burner 4 (2) A / 230 V a.c.
14 230 V a.c. supply for P3
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.
Electrical connections 230 V a.c. - in general
12
Installation
24 V a.c. connections
Establish these jumpers:
1-10-12-14
and jumper 2 to common N-terminal
Terminal Description Max. load
1 L Supply voltage 24 V a.c.
2 N Supply voltage 24 V a.c.
9 K1 Circulation pump for boiler 4 (2) A / 230 V a.c.
10 24 V a.c. supply for R1
11 K2
Circulation pump /diverting
valve for DHW
4 (2) A / 230 V a.c.
12 24 V a.c. supply for R2
13 P3 Burner 4 (2) A / 230 V a.c.
14 24 V a.c. supply for R3
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.
Electrical connections 24 V a.c. - in general
13
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 Room temperature sensor** ESM-10
20 and 16 S4 Return temperature
sensor
ESM-11 / ESMB /
ESMC / ESMU
21 and 16 S5 Boiler temperature sensor ESM-11 / ESMB /
ESMU
22 and 16 S6 DHW temperature sensor
ESMB / ESMU
* The syste m device bus / room panel / remote control is only active
whe n the outdoor temperature sensor is conne cted.
** Either room temperature se nsor or room panel / 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 sensibilit y
(EMC).
Connecting and placing the
temperature sensors
14a
Installation
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.
Surface temperature sensor (ESMB-12)
Place the sensor in the surface of the floor.
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
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 op eration Scheduled operation
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 Setba ck
Red
Brown
Green S1 .. . S6 (C14 = S5 only)
Installation
Installation
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 ve rsion,
controller
Desired room tem p.
The controller is now ready to be set to control your system.
Inserting the ECL Card
15a
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
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
The grey
side of the
ECL Card
Basic set-up
Actual time
Year
05
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
Controlled units
Flow
temp.
(S5)
5 036
B
1
ON
ON
2
ON
Return temp.
(S4)
Push and hold the shift button to see:
- the calculated boiler / flow temperature
- the desired return temperature limitations.
This display can also show the actual and desired flow and return
temperatures during DHW charging.
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
The grey
side of the
ECL Card
Basic set-up
Shift to manual mode.
Controlled units
5 036
B
1
ON
ON
2
ON
Controller mode
Choose the unit you want to control. The selected
unit symbol will blink.
Controlled units
1
ON
ON
are switched OFF or ON
when the relevant button is pushed.
This operation applies to both circuits, if available.
During manual operation, all control functions are deactivated.
The boiler pump P1 must be ON when the burner is activated.
Manual control line B
19
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