Danfoss C67 User manual

C67
C67
VI.KM.F1.02 2005.09
VI.KM.F1.02 2005.09
www.danfoss.com
User's Guide 
Installer's Guide 
www.danfoss.com
ECL Comfort
Installer's Guide
ECL Comfort
User's Guide
*087R8147*
*VIKMF102*
*087R8147*
*VIKMF102*
Double mixing controller with 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 Flow temperature sensor, circuit I
(and charging temperature sensor, DHW circuit)
S3 Return temperature sensor, circuit I
S4 Flow temperature sensor, circuit II
S5 Return temperature sensor, circuit II
(or charging temperature sensor, DHW circuit
or lower tank temperature sensor)
S6 Upper tank temperature sensor
P1 Circulation pump, heating, circuit I
P2 Circulation pump, heating, circuit II
P3 Circulation pump, DHW
M1 Motorized control valve, circuit I
M2 Motorized control valve, circuit II
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 087B4820
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
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 charging temperature
4 Set your personal schedule
5 Advantages of the ECL Card
6 Hot points
7 Definitions

VI.KM.F1.02 Card C67 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 instruction. 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 C67 is very flexible. These are the basic
principles:
Heating:
Typically, the flow temperature is always adjusted according to
your requirements.
The flow temperature sensors S2 (circuit I) and S4 (circuit II) are
the most important sensors. The desired flow temperatures at S2
and S4 are 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 valves M1 (circuit I) and M2 (circuit II) are
opened gradually when the flow temperature is lower than the
desired flow temperature and vice versa.
The return temperature, S3 (circuit I) and (if available) S5 (circuit
II) 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 / valves. 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 / temperatures
can be adjusted.
DHW:
If the measured DHW temperature is lower than the desired DHW
heating temperature minus the cut-in difference, the desired flow
temperature at S2 is increased in order to heat the DHW. DHW
heating can have priority, i.e. pump P3 is ON and the pump P1 is
OFF (or changeover valve is activated and P1 is still ON).
Before you start

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 300 and as of
controller version 1.08.
10.1 Two indirectly connected heating systems
and secondarily connected storage tank
with built-in heating coil
System settings
Circuit Line Description Recomm.
setting
I 17 Influence on desired flow temp. OFF
I 43 Priority or parallel operation 99
I 51 DHW charging pump /
changeover valve OFF
I 53 Desired flow temperature at
DHW charging OFF
I 67
Adaptive function of S2 flow
temperature during DHW
charging
OFF
I 140 Function of temperature sensor
S5 0 (1)
I 152 Max limitation temperature at
sensor S2 during DHW charging 90
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

Installation
10.1a Two indirectly connected heating systems
and secondarily connected storage tank
with built-in heating coil
System settings
Circuit Line Description Recomm.
setting
I 17 Influence on desired flow temp. OFF
I 43 Priority or parallel operation OFF
I 51 DHW charging pump /
changeover valve ON
I 53 Desired flow temperature at
DHW charging OFF
I 67
Adaptive function of S2 flow
temperature during DHW
charging
OFF
I 140 Function of temperature sensor
S5 0 (1)
I 152 Max limitation temperature at
sensor S2 during DHW charging 90
10b

Installation
10c
10.2 Two indirectly connected heating systems
and primarily connected storage tank with
built-in heating coil
System settings
Circuit Line Description Recomm.
setting
I 17 Influence on desired flow temp. OFF
I 51 DHW charging pump /
changeover valve OFF
I 53 Desired flow temperature at
DHW charging ON
I 67
Adaptive function of S2 flow
temperature during DHW
charging
OFF
I 140 Function of temperature sensor
S5 0 (1)
I 152 Max limitation temperature at
sensor S2 during DHW charging 90

Installation
10.3 Indirectly connected heating system with
or without mixing loop and primarily
connected storage tank with built-in heating
coil
System settings
Circuit Line Description Recomm.
setting
I 17 Influence on desired flow temp. 3
I 43 Priority or parallel operation 99
I 51 DHW charging pump /
changeover valve OFF
I 53 Desired flow temperature at
DHW charging OFF
I 67
Adaptive function of S2 flow
temperature during DHW
charging
OFF
I 140 Function of temperature sensor
S5 0 (1)
I 152 Max limitation temperature at
sensor S2 during DHW charging 90
Heating circuit II can only be operated against heating circuit I.
This means that heating circuit II cannot be supplied if heating
circuit I is deactivated.
10d

Installation
10e
10.4 Indirectly connected heating system with
or without mixing loop and secondarily
connected storage tank with built-in heating
coil
System settings
Circuit Line Description Recomm.
setting
I 17 Influence on desired flow temp. 3
I 43 Priority or parallel operation 99
I 51 DHW charging pump /
changeover valve OFF
I 53 Desired flow temperature at
DHW charging OFF
I 67
Adaptive function of S2 flow
temperature during DHW
charging
OFF
I 140 Function of temperature sensor
S5 0 (1)
I 152 Max limitation temperature at
sensor S2 during DHW charging 90
Heating circuit II can only be operated against heating circuit I.
This means that heating circuit II cannot be supplied if heating
circuit I is deactivated.