Sketch your application The ECL Comfort controller series is designed for a wide range of heating, domestic hot-water (DHW) and cooling systems with dierent congurations and capacities. If your system diers 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 Installers Guide, which will guide you step-by-step from installation to nal 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: Users Guide: Yellow sections 1-7 Installer's Guide: Grey sections 10 and onwards
The application H66 is very exible. These are the basic principles: Heating: Typically, the ow temperature is adjusted according to your requirements. The ow temperature sensor (S3) is the most important sensor. The desired ow temperature at S3 is calculated in the ECL controller, based on the outdoor temperature (S1). The lower the outdoor temperature, the higher the desired ow temperature. The motorized control valve (M1) is opened gradually when the ow temperature is lower than the desired ow temperature and vice versa. The return temperature (S4) to the district heating supply should not be too high. If so, the desired ow 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 ow temperature can be adjusted. The circulation pump, P3, is ON when the desired ow 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.
VI.KM.T2.02 Card H66 2006.12
Identifying the system type
10.2 Directly connected heating system and DHW circuit
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 congure additional systems. In this section you nd the most frequently used systems. If your system is not quite as shown below, nd 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.
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.
Mounting the ECL Comfort controller
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 xing 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 o the right side of the lid by means of a screwdriver. Insert the controller into the panel cut-out and x it with the two locks which are placed diagonally in two corners of the controller.
Electrical connections 230 V a.c. - in general

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) Closed switch: Comfort temperature Open switch: Scheduled operation
(C14 = 21 only) Closed switch: Setback temperature Open switch: 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 inuence from contact resistance, the use of ECA 9010 is recommended.

Red Red

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

Comfort Comfort

Setback Setback

Inserting the ECL Card

Understanding the ECL Card
The ECL Card contains factory settings for a standard system. If the actual system diers 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 installers 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.
How to insert your ECL Card the rst 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:

Application type
Software version, ECL Card Line Circuit Time Outdoor temp.
Software version, controller
If several controllers are installed in the system you can write a title on the ECL Card with a permanent ink pen.

Desired room temp.

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

Controlled units are switched the relevant button is pushed.

OFF or ON when

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.
The motorized actuator (gear motor / damper)
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.
Relationship between temperature and ohmic value
C -50 -40 -30 -20 -1539 1578
During manual operation, all control functions are deactivated.
Setting the heat curve line C
Parallel displacement Circuit Setting range -9. 9 K Factory setting 0K
Slope Circuit I Setting range 0.2. 3.4

Slope Displacement

If you want to adjust the parallel displacement of the heat curve, push the shift button. The symbol for the parallel displacement will blink. Make your adjustments.

Factory setting 1.8

The symbol for the slope of the heat curve will blink. Adjust the slope of the heat curve, if required.

1.1.10 -30 0.2 0.6 1.0

2.6 3.0
How to determine another heat curve, if necessary: Choose the calculated ow temperature for your system and the determined min. outdoor temperature for your area. Pick the heat curve closest to the crossing point of these two values. The setting of the desired room temperature has an inuence on the calculated ow temperature (heat curve), no matter if a room temperature sensor is connected or not.
Floor heating systems This controller is factory set for radiator systems, which typically are high ow temperature systems. To control oor heating systems, which typically are low ow temperature systems, you need to change the heat curve according to your type of system.
Slope Circuit I / (II) Setting range 0.2. 3.4 Typical setting 1.0 / (1.0)

Whether it is reasonable to change the slope or parallel displacement will depend on the individual heat requirement. Small increases or reductions in the heating temperature can be implemented by means of the parallel displacement.
The grey side of the ECL Card The grey side of the ECL Card

Heating cut-out line 1

1 ON ON 2
Flow temperature limits line 2

1 ON ON ON

Min. ow temp.

Setting range

Max. ow temp.
Limit for heating cut-out Circuit I Setting range 10. 30 C Factory setting 18 C 2 Circuit I
Flow temperature limits, min. and max. Setting range 10. 150 C Factory setting min. 10, max. 90 C
Set the outdoor temperature limit at which you want the heating system to stop.
The valve closes and after about 3 min. the heating circulation pump stops. The min. limitation set in line 2 will be ignored.
Temp. Actual outdoor temp. Accumulated outdoor temp.
The mentioned setting range and factory settings may vary from the settings on your ECL Card.
The left end of the setting range blinks. Adjust the min. limit of your system temperature. Choose the max. limit. The right end of the setting range blinks. Adjust the max. limit.

Heating

Heating OFF

Heating Time

This function can save energy by stopping the heating system when the outdoor temperature gets above a set limit. The heating system switches ON again when the outdoor temperature and the accumulated outdoor temperature become lower than the set limit.
The heating cut-out is only active when the controller mode is scheduled operation. When the limit value is set to 30, there is no heating cut-out.
Room temperature inuence line 3
B: Reference room temperature control
Used if your system is not equipped with thermostats and you select the room with room temperature sensor as a temperature reference for the rest of the rooms. Set a positive value for the min. inuence and a negative value for the max. inuence.

Inuence

This section is only relevant if you have installed a room temperature sensor or ECA 60 / ECA 61 / ECA 62 / ECA 63.

1 ON ON 3 ON

Min. inuence

Max. inuence

Min. limitation Desired room temperature Room temperature
Room temperature inuence Circuit I Setting range 0. 99 / -99. 0 Factory setting min. 0, max. -40
The bar below the min. value blinks. Adjust the min. inuence. Select the max. inuence. The bar below the max. value blinks. Adjust the max. inuence. There are two basic principles for control of the room temperature inuence:

Max. limitation

The room temperature sensor in the reference room registers the dierence between the desired and the actual room temperature. The desired ow temperature will be corrected to eliminate this dierence.

Adapting the ECL Comfort controller to the system
Turn the ECL Card so that the grey side faces you and push , if necessary. Set the time and the date (line A). See section 17. Check that all settings in the controller (sections 30 and 31) are set or that the factory settings comply with your requirements.
If your system diers from the diagram shown on the cover, you should check and alter your service parameters, if necessary. Check that the system settings mentioned in section 10 have been set correctly.

Control & overviews

ECL Card settings (circuit I)
Section 17 Sections 18 & 19 Section 20
Factory settings 1.8 Your settings
ECL Card settings (circuit II) A Time and date B System information C
Setting ranges Factory settings
Section 17 Sections 18 & 19
A Time and date B System information C Heat curve
Setting ranges Slope 0.2. 3.4 See section 20 Parallel displacement -9. 9 K See section 20 0K

Your settings

Limit for heating cut-out 10. 30 C See section C
Flow temperature, min. / max. limits 10. 150 C See section 22 min. 10, max. 90 C
Room temperature inuence 0. 99 / -99. 0 See section 23 min. 0, max. -40
Proportional band, Xp 1. 250 K See section K
Integration time constant, Tn 5. 999 sec. See section sec.
Running time of the motorized control valve 5. 250 sec. 35 sec. See section 26
Running time of the motorized control valve 5. 250 sec. 15 sec. See section 26
Neutral zone, Nz 0. 9 K See section 26 3K
Service parameters (10-199)
Circuit I (Heating) Lines Setting ranges 196 Service pin LON ON / OFF 197 LON reset ON / OFF 198 Daylight saving time changeover ON / OFF 199 Master / slave address 0. 9, 15
Circuit I (Heating) Lines Setting ranges

Factory settings

Factory settings OFF ON ON 15
10 Choice of room panel / remote control 0. 11 Setback temperature dependent on outdoor temperature OFF / -29. 10 C -15 C 12 Boost 0. 99% 13 Reference ramping 0. 99 min. 14 Optimizing time constant OFF / 10. Adaptive function of room temperature OFF / 1. 30 0% 0 min. OFF

C % min.

17 Inuence on desired ow temperature OFF / 1. 20 K OFF 20 Optimization based on room / outdoor temperature ON / OFF 21 Total stop ON / OFF
Circuit II (DHW) Lines Setting ranges

Factory settings 50 C

Your settings C
30 Return temperature limitation 10. 110 C 35 Return temperature inuence - max. limitation -9.9. 0. 9.Return temperature inuence - min. limitation -9.9. 0. 9.9

OFF OFF ON OFF ON

22 Pump exercise ON / OFF 23 Valve exercise ON / OFF 24 Gear motor / thermo actuator ON / OFF 31 Return temperature limitation - upper limit (X-axis) -60. 20 C 32 Return temperature limitation - upper limit (Y-axis) 10. 110 C 33 Return temperature limitation - lower limit (X-axis) -60. 20 C 34 Return temperature limitation - lower limit (Y-axis) 10. 110 C 35 Return temperature inuence - max. limitation -9.9. 0. 9.Return temperature inuence - min. limitation -9.9. 0. 9.9
37 Time constant for return temperature limitation OFF / 1. 141 Override input selection OFF / 1. 6 C OFF
37 Time constant for return temperature limitation OFF / 1. 43 Parallel operation of DHW and heating circuits OFF / 1. 99 K OFF 52 Closed valve / normal operation ON / OFF 141 Override input selection OFF / 1. 6 OFF OFF
Adjusting the service parameters
Service parameter(s) 10-11
10 Choice of room panel / remote control Circuit Setting range

Factory setting

In addition to the settings in line 1 to 7 on the grey side of the ECL Card, there is an extended service menu from line 10 and onwards. Push repeatedly to reach the lines numbered 10 and onwards.
I 0. Decides the communication with the room panel or remote control. Please note that the room panel / remote control is only active if the system device bus is active. The bus is active when the outdoor temperature sensor is connected.

Range indicator

Now you can move to any line of your choice.
Choose between 0: Room temperature sensor (no room panel / remote control) 1: Room panel ECA 60 / 62 or remote control ECA 61 / 63 with address A 2: Room panel ECA 60 / 62 or remote control ECA 61 / 63 with address B 3. 5: Not used
Set the parameter value. You can select any of the two circuits no matter what line you are in. You will not necessarily enter the same line number. See the service parameters in section 31.
The room panel / remote control has no inuence on the DHW control.
11 Setback temperature dependent on outdoor temperature Circuit Setting range Factory setting I OFF / -29. 10 C -15 C Below this outdoor temperature, the setback temperature setting has no inuence.
Check that you have entered all the required settings in circuit I - and circuit II, if available. If you want to copy the new settings to the ECL Card (recommended by Danfoss), see section 34. Make a note of your new settings in the parameter list in section 31. When you have entered all your personal settings, turn the ECL Card over so that the yellow side faces you.

Extended service

-29. 10: The setback temperature depends on the outdoor temperature, when the outdoor temperature is above the set limit. The lower the outdoor temperature, the less the temperature reduction. When the outdoor temperature is below the set limit, there is no temperature reduction. OFF: The setback temperature does not depend on the outdoor temperature.

Reduction

0% -29 -20 -10 20

Outdoor temperature C

Setting line 11

Circuit

Service parameter(s) 12-13
Service parameter(s) 14-15
14 Optimizing time constant
12 Boost Setting range Factory setting I 0. 99% 0% Shortens the heating-up period by increasing the desired ow temperature by the percentage you set.
Set the percentage at which you want the desired ow temperature increased temporarily. In order to shorten the heating-up period after a setback temperature period, the desired ow temperature can be increased temporarily (max. 1 hour). At optimizing the boost is active in the optimization period (line 14). If a room temperature sensor or an ECA 60 / 61 / 62 / 63 is connected, the boost stops when the room temperature has been reached. The boost also stops at the end of an optimizing period.
13 Reference ramping Circuit Setting range Factory setting I 0. 99 min. 0 min. The time in which the desired ow temperature increases slowly to avoid load peaks in the heat supply.
I OFF / 10. 59 OFF Optimizes the start and stop times for the comfort temperature period to obtain the best comfort at the lowest energy consumption. The lower the outdoor temperature, the earlier the heating cut-in.
Adjust the optimizing time constant. The value consists of a two digit number. The two digits have the following meaning:
Digit Digit 9 Heat accumulation of the building light medium heavy medium heavy Dimensioning temperature - 50 C - 45 C - 25 C - 5 C Floor heating systems Capacity large normal small System type Radiator systems
Set the ramping time for the controller.

Temperature C

OFF: No optimization. The heating starts and stops at the times set in the schedule.
Dimensioning temperature: The lowest outdoor temperature (usually determined by your system designer in connection with the design of the heating system) at which the heating system can maintain the designed room temperature.

Setting line 13

Time (min.)
In order to avoid load peaks in the supply network, the ow temperature can be set to increase slowly after a period with setback temperature. This causes the valve to open slowly.
15 Adaptive function of room temperature Circuit Setting range Factory setting I OFF / 1. 30 OFF Controls how fast the room temperature adapts to the desired room temperature.
The adaptive funtion will eliminate the dierence between the desired and the actual room temperature. This is done by integrating the dierence and adjusting the desired ow temperature. OFF: The adaptive funtion is cancelled. 1: 30: The desired temperature is adapted quickly. The desired temperature is adapted slowly.

Changeover switch: Setback or comfort temperature
(used if the override switch does not have gold-plated contacts).

16 - Brown 15 - Red

Green (S1. S6)
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).

Service parameter(s) 199

199 Master / slave address Setting range Factory setting I 0. 9, The setting is relevant when more controllers are working in the same ECL Comfort system (connected via the system device bus (ECL Comfort BUS)).
The slave receives information about the outdoor temperature (S1), system time, and signal for DHW demand in the master.
1. 9: The slave receives information about the outdoor temperature (S1), system time, and signal for DHW demand in the master. The slave sends information about the desired ow temperature to the master. 15: The controller is master. The master sends information about the outdoor temperature (S1), system time, and the DHW demand signal. The master receives the desired ow temperature information from the slaves with addresses 1. 9. The bus is active and connected ECAs are powered. The ECL Comfort controllers can be connected via the bus to perform a larger system. The controller, which is physically connected with the outdoor temperature sensor, is the master of the entire system and automatically gets the address 15. Each slave must be congured with its own address (1. 9).
However, more slaves can have the address 0 if they only have to receive information about outdoor temperature, system time, and signal for DHW demand in the master.
Copying with the ECL Card
Copy personal settings to additional controller(s) in identical systems
Ensure that the other controller(s) use(s) the same ECL Card type. (If this is not the case, please read section 15). Insert the ECL Card, which contains the personal settings, with the yellow side facing you. Go to line 9 (is not displayed), which is the second line below line 7.
Check the ECL Card and the software generations (see following example). Insert the ECL Card with the yellow side facing you. Go to line 8 (is not displayed), which is the rst line below line 7.
Software version, ECL Card

05 109

Select the copying direction (from the card to the controller).
Store new controller settings on the ECL Card
All new settings* can be stored on the ECL Card. Insert the ECL Card with the yellow side facing you. Go to line 9 (is not displayed), which is the second line below line 7.

Copying direction

Controller
Store new ECL Card application in the controller
If you insert an ECL Card with another application type, it is necessary to copy it to your controller. Insert the ECL Card with the yellow side facing you. The controller will keep showing CPY.

Accept to copy settings from controller to ECL Card. When the copying is nished, the controller returns to display line C.
* Time and date settings are not stored on the ECL Card. Card
If you have copied your personal settings to the ECL Card, you cannot restore the factory settings!
The yellow side of the ECL Card

Denitions

Humidity, relative
This value (stated in %) refers to the indoor moisture content compared to the max. moisture content. The relative humidity is measured by the ECA 62 / 63 and is used for the calculation of the dew point temperature.

Air duct temperature

Temperature measured in the air duct where the temperature is to be controlled.

Balance temperature

This setpoint is the basis for the ow / air duct temperature. The balance temperature can be adjusted by the room temperature, the compensation temperature and the return temperature. The balance temperature is only active if a room temperature sensor is connected.

Limitation temperature

Temperature that inuences the desired ow / balance temperature.

Comfort operation

Normal temperature in the system controlled by the schedule. During heating the ow temperature in the system is higher to maintain the desired room temperature. During cooling the ow temperature in the system is lower to maintain the desired room temperature.

Pt 1000 sensor

All sensors used with the ECL Comfort controller are based on the Pt 1000 type. The resistance is 1000 ohm at 0 C and it changes with 3.9 ohm / degree.

Optimization

The controller optimizes the start time of the scheduled temperature periods. Based on the outdoor temperature, the controller automatically calculates when to start in order to reach the comfort temperature at the set time. The lower the outdoor temperature, the earlier the start time.

Comfort temperature

Temperature maintained in the circuits during comfort periods. Normally during daytime.

Compensation temperature

A measured temperature inuencing the ow temperature reference / balance temperature.

Return temperature

The temperature measured in the return inuences the desired ow temperature.
Controller mode indicator
Black arrow to the right of the symbols indicating the present mode.

Temperature sensor placed in the room (reference room, typically the living room) where the temperature is to be controlled.

Desired room temperature

Temperature which is set as the desired room temperature. The temperature can only be controlled by the ECL Comfort controller if a room temperature sensor is installed. If a sensor is not installed, the set desired room temperature however still inuences the ow temperature. In both cases the room temperature in each room is typically controlled by radiator thermostats / valves.

Room temperature

Temperature measured by the room temperature sensor, room panel or remote control. The room temperature can only be controlled directly if a sensor is installed. The room temperature inuences the desired ow temperature.

Schedule

Schedule for periods with comfort and setback temperatures. The schedule can be made individually for each week day and may consist of up to 3 comfort periods per day.

Desired temperature

Temperature based on a setting or a controller calculation.

Dew point temperature

Temperature at which the humidity in the air condensates.

Setback temperature

Temperature maintained in the heating / DHW circuit during setback temperature periods.
Settings stored on the ECL Card to simplify the set up of your controller the rst time.

State / mode indicators

White arrow to the left of the symbols (sun / moon). The white arrow indicates the present state, comfort (sun) or setback (moon), when the controller is in scheduled operation mode. The black arrow symbol indicates the mode of the controller.

Flow temperature

Temperature measured in the ow at any time.
Flow temperature reference
Temperature calculated by the controller on basis of the outdoor temperature and inuences from the room and / or return temperatures. This temperature is used as a reference for the control.

Time line / bar

Line with numbers representing the hours. Below the time line, time bars represent scheduled periods with comfort temperature. The bar is divided into half hour sections.

Heating circuit

The circuit for heating the room / building.

Weather compensation

Flow temperature control based on the outdoor temperature. The control is related to a user-dened heat curve.

Heat curve

A curve showing the relationship between actual outdoor temperature and required ow temperature.

System information - display B
The display will show the room temperature if a room temperature sensor, a room panel or a remote control is installed. If not, two bars will be shown. State of controlled units

Line Circuit DHW temp.

State of controlled units Line Circuit Flow temp. (S3)
Todays schedule - display C
Return temp. (S4) Line Circuit
Today's schedule - display C
Time Line Circuit Outdoor temp.

Today's schedule

The controller automatically reverts to display C if the card has been reinserted or the power supply has been interrupted.
If the temperature value is displayed as "- -", the sensor in question is not connected. "- - -" means that the sensor is shortcircuited.
The controller automatically reverts to display C if the card has been reinserted or the power supply has been interrupted. If the temperature value is displayed as "- -", the sensor in question is not connected. "- - -" means that the sensor is shortcircuited.
Save energy - save money - improve your comfort temperature
The ECL Comfort controller is designed by Danfoss for the automatic temperature control of heating, domestic hotwater (DHW), ventilation and cooling systems. Some of the advantages of the ECL Comfort controller system are: Secure control and the optimum use of energy resources. Control of system temperatures according to seasonal changes and variations in outdoor temperatures. Setback temperature periods and low energy consumption while you are out or asleep save heating costs.

Daily use Section

7 Choose your favorite display Select circuit mode Set your room and DHW temperature Set your personal schedule Advantages of the ECL Card Hot points Denitions
Operating the ECL Comfort controller in general
When operating the controller it is advisable to keep the lid open in order to view the entire display. During operation the ECL Card must be inserted with the yellow side facing you. The ECL Card, which is equipped with a memory chip, is simple and easy to handle. The ECL Card is divided vertically into two columns each representing a circuit. Horizontally the ECL Card is divided into lines that represent the dierent control and programming options for the two circuits. Each line is shown in the display of the controller, which gives you an instant overview of the operation, settings etc.

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

Installer's Guide:

Grey sections 10 and onwards. Turn the guide over.

Your personal schedule:

6-8 16-22
Heating 1 Monday 2 Tuesday 3 Wednesday 4 Thursday 5 Friday 6 Saturday 7 Sunday
How to use the ECL Comfort User's Guide
This guide provides you with an easy instruction for the ECL Comfort controller. The Installer's Guide, the grey section (turn the guide over), contains the complete list of factory settings and various detailed adjustments that ensure an ecient and continuous operation of your system.

8-23 5-8 18-22

DHW 1 Monday 2 Tuesday 3 Wednesday 4 Thursday 5 Friday 6 Saturday 7 Sunday
Factory settings are grey.

Remove tape on the back. Position on inside of ECL Comfort cover.
Arrow buttons change display (move between the lines on the ECL Card)
Adjusting the temperature of the current heating period Outdoor Room/hot water temperature temperature
Selecting mode Manual operation Scheduled operation Comfort temperature Setback temperature Standby

*087R8279* *VIJEL202*

ECL Comfort 301 quick guide
Shift button move between items in display Minus and plus buttons adjust temperature or time
Desired temperature Push to adjust up or down
Push to change the mode of the controller
Mode selector change mode of operation Circuit selector changes between heating (I) and hot water (II) Adjusting the temperature of another heating period Hold down while adjusting with minus/plus buttons The arrow indicates Comfort or Setback temperature when in scheduled operation
ECL Comfort 301 L05, L66, H66 VI.JE.L2.02 2005.08
Selecting mode Adjusting the temperature of the current heating period Outdoor Room/hot water temperature temperature Manual operation Scheduled operation Comfort temperature Setback temperature Standby
Mode selector change mode of operation Circuit selector changes between heating (I) and hot water (II) Adjusting the temperature of another heating period Hold down while adjusting with minus/plus buttons
The arrow indicates Comfort or Setback temperature when in scheduled operation
Temperature / Mode selection

Checking your schedules

Changing Comfort Changeover time
Adding an extra period New period
The factory set schedule Heating (I) Monday - Friday 6:00 - 8:00 16:00 - 22:00 8:00 - 23:00

Mondays

Tuesdays Wednesdays

Thursdays

Saturday - Sunday DHW (II) Monday - Friday Saturday - Sunday
Push both at the same time Adjust the rst changeover time
5:00 - 22:00 6:00 - 23:00
Push to move between week day, weekend or single day plans
Select changeover time Adjust backward or forward Shift to second changeover time and adjust Restoring factory set schedule Push both at the same time for 2 seconds Storing a new schedule on your ECL Card Push to line 9: CPY Update your ECL Card
Return to display A, B or C
Removing a period Push both at the same time for 2 seconds
Saturday - Sunday Hot water (II) Monday - Friday Saturday - Sunday
Comfort periods / Schedule