sauter equitherm EQJW245 Operating instructions

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SAUTER equitherm

®

EQJW245

Electronic heating controller

Operating manual

7010042003 A

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EQJW245

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Content

Symbols used in this manual 7

Abbreviations 9

1 General information 11

1.1 Introduction 11

1.2 Safety information 11

2 Description of the operating controls 13

2.1 Front view of the EQJW245 13

2.2 Top Rotary switches (heating 1) 13

2.3 Middle rotary switch (heating 2) 14

2.4 Bottom rotary switch (domestic water) 14

2.5 Input knob 15

2.6 ESC key 15

2.7 Display 15

3 Commissioning 17

3.1 Operating the device for the ﬁ rst time 17

3.1.1 Setting the time 17

3.1.2 Setting the date 18

3.2 Commissioning level 19

3.2.1 Access to commissioning level 19

3.2.2 View SERVice parameters 20

3.2.3 Change SERVice parameters 21

3.2.4 List of SERVice parameters 21

3.3 SERVice level 22

3.3.1 Access to SERVice level 22

3.3.2 View SERVice parameters 23

3.3.3 Change SERVice parameters 24

3.3.4 List of SERVice parameters 24

3.3.5 Explanations for individual SERVice parameters 28

3.4 Communication level 46

3.4.1 Access to communication level 46

3.4.2 Viewing the communication parameters 47

3.4.3 Changing communication parameters 47

3.4.4 List of communication parameters 48

3.4.5 Explanations of individual communication parameters 49

4 Operation 55

4.1 Operating modes 55

4.1.1 Displays when automatic mode is set 56

4.1.2 Displays when back-up mode, reduced mode and normal mode are

set 58

4.2 Entering the setpoint temperature in normal mode 59

4.3 Enter setpoint temperature in reduced mode 60

4.4 Weekly switching programme for heating 61

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Content

4.4.1 Calling up the weekly switching programme 62

4.4.2 View switching commands 62

4.4.3 Enter a switching command 62

4.4.4 Changing and deleting a switching command 63

4.5 Calendar switching programme 64

4.5.1 Calling up the calendar switching programme 64

4.5.2 View switching commands 65

4.5.3 Enter a switching command 65

4.5.4 Changing and deleting a switching command 65

4.6 Temporary temperature change for the ﬁ rst heating circuit 66

4.7 Inputs for second heating circuit 67

4.8 Entering domestic water temperatures 68

4.8.1 Notes on the boosted domestic water temperature 69

4.9 Weekly switching programme for domestic water 69

4.9.1 Calling up the weekly switching programme 70

4.9.2 View switching commands 70

4.9.3 Enter a switching command 70

4.9.4 Changing and deleting a switching command 71

4.10 Weekly switching programme for pilot timer/circulating pump 71

4.11 Calling up the weekly switching programme 72

4.11.1 View switching command 72

4.11.2 Enter switching command 72

4.11.3 Change/delete switching command 73

4.12 Once-only tank charge 73

5 Manual mode 75

5.1 Access to manual mode (heating) 75

5.2 Access to manual mode (heating circuit II) 75

5.3 Access to manual mode (domestic water, conﬁ gurable output and

second ﬁ nal control element) 75

5.4 Set valve position 76

5.5 Set status of other outputs (pumps, conﬁ gurable output) for manual

mode 76

5.6 Exit manual mode 76

5.7 Check measured values in manual mode 76

6 Communication functions 79

6.1 Bus wiring 79

6.2 Device bus 79

6.2.1 Assigning addresses 79

6.2.2 Room operating unit EDB 100 79

6.2.3 Sending and receiving outdoor temperatures 80

6.2.4 Requesting and processing a heat requirement 80

6.2.5 Requesting and processing a return temperature 80

6.2.6 Synchronising the time 80

6.3 Modbus communication 81

6.3.1 Modbus data points (holding register) 82

6.3.2 Modbus data points (coils) 85

6.4 Modem operation 86

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Content

6.4.1 Connection with the modem 86

6.4.2 Modbus operation via modem 86

6.4.3 Sending SMS if there is a fault on the installation 86

6.4.4 Displays for modem operation 87

6.5 Communication with device in as-delivered condition 87

7 Faults 89

7.1 Displaying faults 89

7.1.1 Error list 89

7.1.2 Device status 89

7.2 Logbook 90

7.3 Reset functions 91

7.4 Actions to deal with faulty temperature value measurements 91

8 Using the controller 93

8.1 General information 93

8.2 Examples of use 93

8.2.1 Control model 1 94

8.2.2 Control model 2 95

8.2.3 Control model 3 96

8.2.4 Control model 4 97

8.2.5 Control model 5 98

8.2.6 Control model 6 99

8.2.7 Control model 7 100

8.2.8 Control model 8 101

9 Economy tips 103

10 Resistance values for the Ni1000 sensors 105

11 Accessories 107

12 Wiring diagram 109

13 Dimension drawing 111

14 Technical data 113

14.1 Overview of technical data 113

14.2 Overview of main functions 114

15 Overview of controller settings 117

15.1 List of SERVice parameters 117

15.2 List of communication parameters 118

15.3 Weekly switching programme: heating 1 118

15.4 Weekly switching programme: heating 2 119

15.5 Calendar switching programme: heating 1 and heating 2 119

15.6 Weekly switching programme: domestic water 120

15.7 Weekly switching programme: pilot timer/circulating pump 120

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Content

Table of ﬁ gures 121

List of tables 123

Index 125

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Symbols used in this manual

Information

Information concerning the use of the product.

Factory setting of the EQJW245

(e.g. manufacturer‘s speciﬁ ed control values, switching times, etc.)

Warnings

The operating instructions explain the various functions of the device, step by

step, using the following symbols:

‚PROG‘ is shown on the display, ﬂ ashing

‚09:00‘ is shown on the display, not ﬂ ashing

Press key ...

NOTICE

09:00

PROG

....

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Abbreviations

Abbreviations Term

BW domestic water

CO communication

HK heating circuit

Imp pulse

KW cold water

MOD control model

SE SERVice

SP SERVice parameter

T

A

outdoor temperature

T

F

ﬂ ow temperaturev

T

Fi

actual value for ﬂ ow temperature

T

FS

setpoint for ﬂ ow temperature

T

Fsmax

maximum limitation for setpoint of T

F

T

Fsmin

minimum limitation for setpoint of T

F

T

R

room temperature

T

RF

return temperature

T

Ri

actual value of room temperature

TR

max

maximum limitation of adjusting range for T

RS

T

Rmin

minimum limitation of adjusting range for T

RS

T

RS

setpoint for room temperature

T

S/W

heating limit

T

W

domestic water temperature

T

Y

valve running time

U

P

heating pump

X

i

actual value

X

P

proportional band

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General information

General information1

Introduction1.1

Congratulations! You have chosen a Sauter heating controller. The equitherm

®

EQJW245 is a quality product from one of the leading manufacturers of control

technology products for the heating, ventilation and air conditioning industry.

The EQJW245 is a compact, weather-compensated heating controller used to

regulate ﬂ ow temperatures and domestic water preparation. In automatic mode,

the EQJW245 reduces the room temperature during the night (Reduced mode)

by means of switching commands from the weekly time switch (weekly switching

programme), and during the day it switches to the normal temperature. Domestic

water preparation is switched on or off via another switching programme. There

is a choice of two adjustable temperatures for domestic water. The EQJW245

is suitable for buildings of all types. A ﬁ xed basic programme (factory setting)

ensures that commissioning is simple. Any adaptations to the heating system

which might be needed are implemented using SERVice parameters. Automatic

summertime/wintertime change-over eliminates the need for residents to adjust

the time twice a year. The equitherm

®

EQJW245 incorporates a variety of

protective functions such as the anti-frost function and the pump anti-Yesmming

facility. Additional functions such as automatic switch-off are also implemented.

For every installation, these features ensure optimal comfort with the minimum

use of energy.

Analogue or digital room operating units can be connected to the EQJW245,

enabling convenient remote control of the controller from the living room.

A programmable output is available for additional tasks. For example, it may be

used as a pilot timer output, a signal for a collective fault alarm or for activating

a central heating pump or domestic water circulation pump. The communication

interface makes it possible to network several controllers, connect to a control

station and/or send alarms to a mobile telephone via SMS.

1.2 Safety information

Special care is required in order to prevent injuries, damage by ﬁ re or damage to

equipment. After the device has been installed by a specialist in accordance with

the Installation Instructions enclosed with it (MV506103), please read these

instructions on operating it. Local regulations must be followed during installation.

The controller is not a safety-relevant component. The anti-frost, overheating

protection and ﬂ ow temperature limitation functions do not replace the relevant

safety equipment.

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Description of the operating controls

Description of the operating controls2

Front view of the EQJW2452.1

2

1

°C

sec

h

equitherm

®

EQJW245

1

2

PROG

12

LOG

PROG

1x

ESC

OK

STOP

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

2

1

3

4

B11423

EQJW245 - Front view Fig.1

1

Rotary switch

2 Display

3

Input knob

4 ESC button

The device has three rotary switches with 10 positions, an input knob and a

button.

Top 2.2 Rotary switches (heating 1)

The switch positions have these meanings:

EQJW245 - Top Rotary SwitchesFig.2

Operating modes Inputs

Automatic mode according to

swithing programme

Setpoint adjustment normal Mode

Regulator is continuously in normal

mode

1

Setpoint adjustment Reduced mode

Regulator is continuously in Redu-

ced mode

Enter weekly and yearly programme for

heating

Regulator is continuously in back-up

mode

2

Limited (unlimited) temperature change

Access to manual mode for heating

Access to SERVice and communication

level

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EQJW245

Description of the operating controls

Middle rotary switch (heating 2)2.3

EQJW245 - Middle rotary switch (heating 2)Fig.3

Operating modes Inputs

Automatic mode according to

swithing programme

Setpoint adjustment normal mode

Regulator is continuously in normal

mode

1

Setpoint adjustment Reduced mode

Regulator is continuously in Redu-

ced mode

Enter weekly and yearly programme

for heating

Regulator is continuously in back-

up mode

2

Limited (unlimited) temperature

change

Access to manual mode for heating Access to log book

1

Normal mode corresponds to nominal mode as per EN 12098-1

2

Back-up mode means that the heating is switched off and the anti-frost

function is active.

Bottom rotary switch (domestic water)2.4

EQJW245 - Bottom rotary switch (domestic water)Fig.4

Operating modes Inputs

Automatic mode for domestic

hot water according to switching

programme

Setpoint for increased domestic fot

water temperature

Continuous heating to increased

domestic water temperature

Sollwert normale Trinkwassertemperatur

Continuous heating to normal

domestic water temperature

Eingabe Wochenprogramm Trinkwasser

Trinkwasserladung abgeschaltet

Eingabe Wochenprogramm konﬁ gurier-

barer Ausgang

Zugang zum Handbetrieb für Trink-

wasser, konﬁ gurierbarer Ausgang

einmalige Trinkwasserladung

If the rotary switches are used to select a prohibited combination of positions, e.g.

simultaneous entry of setpoints for heating and domestic water preparation, the

controller will show this symbol: . In this case, one of the switches should be

set to the symbol or to another mode.

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Description of the operating controls

Input knob2.5

You can use the input knob to scroll through menus, and

to select or change values. Unless explicitly described

otherwise, you can scroll through or change menus/values

in a ring structure. There is no ‚limit stop‘ for adjusting

values or scrolling.

The input knob has a key function, i.e. you can press

it. This is used to select the parameter just shown for

changing, or to conﬁ rm a ﬂ ashing value, or to access a

lower menu level.

2.6 ESC key

Press the ESC key to cancel operations, or to return from

a lower menu item to the next level up.

2.7 Display

The device has an LC display (see 2.1), which can show various items of

information at the same time. The next illustration shows what the symbols mean:

0 1 2 3 4 5 6 7 8..........21 22 23 24

Times for normal mode on the current day

Time, date, setpoints, actual values, etc.

Automatic mode according to the weekly and calendar switching pro-

gramme. ﬂ ashing: temperature change for limited (unlimited) period

Heating circuit is in normal mode ﬂ ashing. Optimisation takes place on

changing to normal mode.

Heating circuit is in Reduced mode ﬂ ashing. Optimisation takes place

on changing to reduced or off mode.

Heating circuit is in back-up mode. ﬂ ashing: anti-frost function is active

At least one sensor is faulty (or not connected)

1

Heating medium pump of heating 1 is switched on

2

Heating medium pump of heating 2 is switched on

1

Final control element 1 is opened () or closed ()

2

Final control element 2 is opened () or closed ()

Display of setpoint temperature. ﬂ ashing: display of actual temperature

Display of ﬂ ow temperature

Display of outdoor temperature

Display of room temperature

Display of return temperature

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EQJW245

Description of the operating controls

Display of tank temperature

Controller is in summer mode

Calendar switching programme mode is currently active

Domestic water. ﬂ ashing: with increased temperature

4

Charge pump switched on

3

Conﬁ gurable relay output (e.g. for 2nd charge pump) activated

An error has occurred (see 7)

Screed curing function (function heating or ready-for-laying heating)

active

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Commissioning

3 Commissioning

Operating the device for the ﬁ rst time3.1

When you operate the equitherm

®

EQJW245 for the ﬁ rst time, you must set

the date and time. Essentially, once this is done, the controller is ready for use.

However, depending on the application, it may be necessary to change further

settings after this.

Setting the 3.1.1 time

To enable you to set the time, you must ﬁ rst move the bottom rotary switch into

one of the following positions (see 4.1):

Off mode

Continuous heating to normal domestic water temperature

Continuous heating to increased domestic water temperature

Automatic mode

The middle rotary switch must be in one of the following positions (see section

2.1).

Back-up mode

Reduced mode

Normal mode

Automatic mode

00:00

Set the top rotary switch to automatic 1.

mode.

The time is shown. Â

0000

Press the input knob.2.

The time ﬂ ashes ... Â

15:06

Turn the input knob.3.

The time is set. Â

Procedure

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EQJW245

Commissioning

15:06

Press the input knob again.4.

The new time is conﬁ rmed. Â

If several devices are connected to each other via a device bus (see 3.4.4) and

you set the clock on one device, the time and date are also set on all the other

devices.

Setting the 3.1.2 date

To enable you to set the date, you must ﬁ rst move the bottom rotary switch into

one of the following positions (see 4.1):

Off mode

Continuous heating to normal domestic water temperature

Continuous heating to increased domestic water temperature

Automatic mode

The middle rotary switch must be in one of the following positions (see section

2.1).

Back-up mode

Reduced mode

Normal mode

Automatic mode

15:06

Set the top rotary switch to automatic 1.

mode.

The time is shown. Â

0 1.0 1

Turn the input knob until the date is 2.

displayed

(day/month and year are shown Â

alternately).

2000

Press the input knob.3.

The number of the year ﬂ ashes... Â

Procedure

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Commissioning

2008

Turn the input knob.4.

The year is changed. Â

01.01

Press the input knob. 5.

The year is conﬁ rmed and the day/ Â

month is shown.

29.04

Turn the input knob.6.

The date is changed. Â

29.04

Press the input knob,7.

The new date is conﬁ rmed. Â

3.2 Commissioning level

In commissioning level, a specialist can perform the basic settings on the GZP

which are important for commissioning. Direct access to speciﬁ ed service

parameters is enabled.

Incorrect parameterisation (setting) of the heating controller

It can cause major faults or damage to the installation.

The commissioning level must only be enabled by a specialist. 

Some of the parameters cannot be changed. They can only be viewed (version

number, status information).

Access to commissioning level3.2.1

In order to access commissioning level, the bottom rotary switch must ﬁ rst be

moved to one of the following positions (see chapter 4.1):

Off mode

Continuous heating to normal domestic water temperature

Continuous heating to increased domestic water temperature

Automatic mode

The middle rotary switch must be in one of the following positions (see section

2.1).

NOTICE

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EQJW245

Commissioning

Back-up mode

Reduced mode

Normal mode

Automatic mode

SE

Set the upper rotary switch to the 1.

Service position.

Press the input knob, 2.

‚In‘ (= commissioning).3.

0000

Press the input knob4.

0123

Turn the input knob, 5.

show the code6.

SP 01

Press the input knob. 7.

The ﬁ rst SERVice parameter is Â

displayed

View SERVice parameters 3.2.2

SP 19

Turn the input knob.1.

Select the SERVice parameter you 2.

want.

120

sec

Press the input knob. 3.

The value of the parameter is shown. Â

SP 19

To leave the value unchanged.4.

Press ESC to exit the display. 5.

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sauter equitherm EQJW245 Operating instructions

sauter equitherm EQJW245 Operating instructions

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