Danfoss C37 Bedienungsanleitung

C37

VI.7C.E6.02

2005.09

VI.7C.E6.02

2005.09

www.danfoss.com

User's Guide 

Installer's Guide 

www.danfoss.com

ECL Comfort

Installer's Guide

ECL Comfort

User's Guide

*087R8070*

*VI7CE602*

*087R8070*

*VI7CE602*

Mixing controller with ON / OFF

controlled DHW charging

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, circuit I

S3 Flow temperature sensor, circuit I

S4 Return temperature sensor

S5 DHW tank temperature sensor, lower

S6 DHW tank temperature sensor, upper

P1 Circulation pump, heating, circuit I

P2 Primary charging pump, DHW, circuit II

P3 Charging / circulation pump, DHW, circuit II

M1 Motorized control valve, heating, circuit I

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 087B4758

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.

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

27 Cut-in and cut-out temperature at DHW charging

- lines 1-2, circuit II

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.7C.E6.02

Card C37

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 C37 is very ﬂexible. These are the basic

principles:

Heating:

Typically, the ﬂow temperature is always 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.

DHW:

If the measured DHW temperature is lower than the desired DHW

heating temperature minus the cut-in diﬀerence, the desired ﬂow

temperature at S3 is increased in order to heat the DHW. DHW

heating can have 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

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 Indirectly connected system and secondarily

connected DHW storage charging system

System settings

Circuit Line Description Recomm.

setting

I 51 DHW charging pump /

changeover valve OFF

I 52 Closed valve / normal operation OFF

I 53 Desired ﬂow temperature at

DHW charging OFF

I 90 P3 = DHW circulation pump OFF

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

10.2 Indirectly connected system and secondarily

connected DHW storage charging system

(DHW priority)

System settings

Circuit Line Description Recomm.

setting

I 51 DHW charging pump /

changeover valve ON

I 52 Closed valve / normal operation OFF

I 53 Desired ﬂow temperature at

DHW charging OFF

I 90 P3 = DHW circulation pump OFF

P2/M2*

For the control of the actuator use either relay output P2 or triac

output M2, see section 12.

10.3 Indirectly connected system and secondarily

connected DHW storage tank with built-in

heating coil

System settings

Circuit Line Description Recomm.

setting

I 51 DHW charging pump /

changeover valve OFF

I 52 Closed valve / normal operation OFF

I 53 Desired ﬂow temperature at

DHW charging OFF

I 90 P3 = DHW circulation pump ON

10b

Installation

10.4 Indirectly connected system and secondarily

connected DHW storage tank with built-in

heating coil (DHW priority)

System settings

Circuit Line Description Recomm.

setting

I 51 DHW charging pump /

changeover valve ON

I 52 Closed valve / normal operation OFF

I 53 Desired ﬂow temperature at

DHW charging OFF

I 90 P3 = DHW circulation pump ON

P2/M2*

For the control of the actuator use either relay output P2 or triac

output M2, see section 12.

10.5 Indirectly connected system and primarily

connected DHW storage tank with built-in

heating coil

System settings

Circuit Line Description Recomm.

setting

I 51 DHW charging pump /

changeover valve ON

I 52 Closed valve / normal operation OFF

I 53 Desired ﬂow temperature at

DHW charging ON

I 90 P3 = DHW circulation pump ON

P2/M2*

For the control of the actuator use either relay output P2 or triac

output M2, see section 12.

10c

Installation

The following heating systems are only applicable with relay

module ECA 80

10.6 Indirectly connected system and secondarily

connected DHW storage charging system

System settings

Circuit Line Description Recomm.

setting

I 51 DHW charging pump /

changeover valve OFF

I 52 Closed valve / normal operation OFF

I 53 Desired ﬂow temperature at

DHW charging OFF

I 90 P3 = DHW circulation pump ON

10.7 Indirectly connected system and secondarily

connected DHW storage charging system

(DHW priority)

System settings

Circuit Line Description Recomm.

setting

I 51 DHW charging pump /

changeover valve ON

I 52 Closed valve / normal operation OFF

I 53 Desired ﬂow temperature at

DHW charging OFF

I 90 P3 = DHW circulation pump ON

P2/M2*

For the control of the actuator use either relay output P2 or triac

output M2, see section 12.

10d

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

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