Danfoss ECA 86 Temperature Alarm Module for ECL Comfort Operating instructions
- Type
- Operating instructions
Verifying the Installation ECA 86 Instruction
VI.BA.V1.02 © Danfoss 05/01
BC-HM
8
Verifying the Installation
1. Check that actual temperature values from all sensors connected to the ECA 86
module are displayed.
2. Set the maximum temperature limit well below the actual temperature reading from
sensor S7. Verify that an alarm is generated within a period of 38 seconds (there is
a 28 second delay before the new maximum temperature limit is effective, after this
the alarm is generated within 10 seconds).
If you are experiencing trouble, refer to the section “Error Conditions” below.
When all is functioning properly, set the maximum temperature limit as required, and
place the ECL Card with the yellow side facing you, ready for normal operation.
Error Conditions
This section provides support for locating and correcting error conditions that may arise
after the installation of the ECA 86 module.
Module Not Functioning
If the ECA 86 module is not properly installed or the module itself should prove faulty,
no temperature values will be displayed (display shows – – in line C, 1, 2 and 3 for cir-
cuit II). The maximum temperature limit
will
be displayed because the default value is
read from the ECL Card.
To correct this error, you should check the connection of the system device bus to the
ECA 86 module (see page 5):
• Is one of the cables disconnected?
• Have the cables been switched?
Sensor Error
A temperature sensor error may be caused by:
•
A disconnected sensor. The corresponding display will show – –.
• A short-circuited sensor. The corresponding display will show – – –.
To locate the cause of the error, check the following:
• Are the cables of the sensor in question connected correctly?
• Do the cables show any sign of damage?
•
Is the error caused by a malfunctioning Pt 1000 sensor? Try replacing the sensor to
see whether the error condition persists.
Note:
If Sensor S7 is disconnected or short-circuited, an alarm is generated. It is possible to
disable the alarm by setting the maximum temperature limit to 110 °C.
BC-HM
VI.BA.V1.02 © Danfoss 05/01 1
087R9593
087R9593
ECA 86 Temperature Alarm
Module for ECL Comfort 300
Instruction
About this Instruction
This instruction is for the ECA 86 Temperature
Alarm Module for ECL Comfort 300. The instruc-
tion is valid from:
• ECL Comfort 300
Hardware version 1.08
Application C66, card version CI 08
• ECA 86 Temperature Alarm Module
Hardware version 1.00
Software version 1.00.
The instruction provides an introduction to the ECA 86 Temperature Alarm Module,
instructions for installing and operating the module, as well as a brief section about
different error conditions that may occur.
Further information about the ECL Comfort 300 is available in the ECL Comfort User’s
Guide for the relevant application.
Contents
About the ECA 86...............................2
General.................................................2
Functionality .........................................2
I/O Configuration ..................................3
Installation...........................................3
Requirements.......................................3
Hardware Installation ...........................4
Installing the Module........................4
Cabling..............................................5
Software Installation.............................6
New ECL Comfort............................6
ECL Comfort Already in Use ...........6
Operation .............................................7
Reading Temperatures.........................7
Setting the Maximum Temperature......7
Disabling Alarms...................................7
Verifying the Installation....................8
Error Conditions .................................8
Module Not Functioning........................8
Sensor Error..........................................8
About the ECA 86 ECA 86 Instruction
VI.BA.V1.02 © Danfoss 05/01
BC-HM
2
About the ECA 86
General
The ECA 86 Temperature Alarm Module is for the ECL Comfort 300 only.
Ordering Information:
Description Code number
ECA 86 Temperature Alarm Module 087B1158
Socket for ECL Comfort 200/300 087B1149
ESM-11 (Pt 1000 temperature sensor), surface sensor type 087B1165
ECA 86 Temperature Alarm Module for ECL Comfort 300. Instruction 087R9593
Functionality
The purpose of the ECA 86 module is to enable monitoring and maximum limiting of
service water temperature. When the service water temperature rises above a preset
maximum limit, the ECA 86 module will generate an alarm. To indicate the alarm:
•
The ECL Comfort’s display flashes
• By means of a relay output, the ECA 86 module can switch on an external device,
for example a lamp.
With the ECA 86 module installed, the ECL Comfort can monitor temperatures at up to
four extra locations.The actual temperature readings are visible in the ECL Comfort’s
display but they are not used for automatic control of temperatures in the heating sys-
tem. One of the measured temperatures can be used to generate alarms. Figure 1
shows an example of the placement of sensors in a hot-water circuit.
Figure 1. Application example
Instruction ECA 86 Operation
BC-HM
VI.BA.V1.02 © Danfoss 05/01 7
Operation
Reading Temperatures
The four temperature values measured by the ECA module are displayed as indicated
inthetable–withthegreysideoftheECLcardfacingyou:
Sensor Circuit Display line Sensor Circuit Display line
S7 II C S9 II 2
S8 II 1 S10 II 3
To read actual temperatures:
1. Ensure that the grey side of the ECL Card is facing you.
2. Press
to select circuit II.
3. Use
and to access the relevant display lines.
This is an example of the display picture showing:
The actual temperature measured at sensor S7
The maximum temperature setting.
Setting the Maximum Temperature
The maximum temperature limit, which determines when an alarm is generated, is ac-
cessible in the same display as the S7 temperature (see example above), at the lower,
right-hand corner.
The default value is 65 °C, the range is – 20 - 110 °C.
To modify the maximum temperature setting:
1. Proceed as indicated above to select display line C.
2. Use
and to adjust the maximum temperature setting.
Disabling Alarms
To disable the alarm indication, proceed as indicated above to set the maximum tem-
perature limit to its maximum value (110 °C).
Installation ECA 86 Instruction
VI.BA.V1.02 © Danfoss 05/01
BC-HM
6
Software Installation
New ECL Comfort
The following instructions apply when using an ECL Comfort that has not been pro-
grammed by copying a system set-up from an ECL Card.
After completing the cabling and powering on the ECL Comfort, you are ready to begin
the software installation:
1. Open the lid on the front side of the controller.
2. Place the ECL Card with the yellow side facing you. This enables the controller to
read the ECL Card data.
The controller immediately starts copying the factory settings and heating system type
from the ECL Card.
After copying, the display will show the heating system type
that the controller is set up to control.
After approximately 10 seconds, the display changes to
display line C.
Note that after this display appears, there is a delay of 28
seconds before the ECL Comfort has detected the pres-
ence of the ECA 86 module.
ECL Comfort Already in Use
When using an ECL Comfort that has already been in operation before the installation
of the ECA 86 module, you need to copy a system set-up from a new ECL Card sup-
porting the ECA 86 module before the module is operational. Refer to the ECL Comfort
User’s Guide for instructions.
The section “Verifying the Installation” on page 8 tells you how to ensure that the
ECA 86 module is correctly installed.
Instruction ECA 86 Installation
BC-HM
VI.BA.V1.02 © Danfoss 05/01 3
When the hot-water temperature (at S7 in Figure 1) rises above the preset maximum
temperature limit, an alarm is generated within a period of 10 seconds. The ECL Com-
fort’s display starts flashing and a connected external device is activated. These alarm
indications persist while the hot-water temperature remains above the maximum limit.
The alarm will go off when the hot-water temperature drops below the maximum limit
minus
5 K. After this temperature is detected, there is a delay of 0 – 28 seconds before
the alarm indications disappear (display stops flashing, external device is switched off).
The alarm function is illustrated in Figure 2.
Alarm off after
0–28seconds
time
service water temperature
t
re
f
t
ma
x
Alarm on after max.
10 seconds
5K
Figure 2. ECA 86 alarm function.
I/O Configuration
The ECA 86 module provides the ECL Comfort with:
•
4 Pt 1000 inputs
• 1 relay output.
For further information about inputs and outputs of the ECA 86 module, see page 5.
Installation
Requirements
The ECA 86 module is power supplied via the ECL Comfort’s system device bus. In or-
der for this bus to function properly, an outdoor temperature sensor
must
be connected
to the ECL Comfort.
When several ECL Comforts are connected in a network, only one ECA 86 module can
be present in the network and this module must be installed in the master ECL Com-
fort. See the ECL Comfort User’s Guide (grey section, Installation and Maintenance) for
further information on ECL Comfort networking.
Installation ECA 86 Instruction
VI.BA.V1.02 © Danfoss 05/01
BC-HM
4
Hardware Installation
Installing the Module
1. You need an ECL Comfort socket
and the ECA 86 module. The ca-
bles soldered to the ECA 86 mod-
ule are used to connect the module
to the system device bus.
2. Remove each of the 2 plastic flaps
covering the openings in the socket
by inserting a screw driver in the
groove. Discard the flaps.
3. Pass the cables through the open-
ing in the socket, as illustrated.
4. Proceed to insert the base of the
module and then gently press to
click the rest of the module into
place.
Figure 3. Installing the ECA 86 module in the socket
Instruction ECA 86 Installation
BC-HM
VI.BA.V1.02 © Danfoss 05/01 5
Cabling
Figure 4. Connectors of the ECL Comfort
Figure 4 shows the connectors on the inside of the ECL Comfort socket, with the ECA
86 module installed. The connectors for the ECA 86 are placed at the bottom of the
socket. Therefore, it is most practical to begin by installing the cables for the ECA 86
and then proceed to install signal and other cables for the ECL Comfort itself.
As shown in Figure 4, the ECA 86 module’s system device bus cables must be con-
nected to connectors 15 and 16.
The terminal assignments of the ECA 86 module are as follows:
Term. Description Term. Description
24, 26 Relay. NO (normally open) function 30 Sensor S7
25, 26 Relay. NC (normally closed) function 31 Sensor S8
32 Sensor S9
33 Sensor S10
34 Common
For sensor connections, the permissible cable cross-section is 0.5 mm
2
. The maximum
cable length is 10 m.
Note:
The total length of the cabling for sensors and system device bus must not exceed
120 m.
If you are having difficulty connecting several cables to terminal 34 (sensor common),
use one of the larger common terminals immediately above the sensor terminals.
For further details on installation, see the ECL Comfort User’s Guide (grey section, In-
stallation and Maintenance).
-
1
-
2
-
3
-
4
Danfoss ECA 86 Temperature Alarm Module for ECL Comfort Operating instructions
- Type
- Operating instructions
Ask a question and I''ll find the answer in the document
Finding information in a document is now easier with AI
Related papers
-
Danfoss ECL Comfort 210 / 310, A232 Operating instructions
-
-
Danfoss ECL Comfort 310 Operating instructions
-
-
-
-
-
-
-