sauter equitherm EQJW245 User manual

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SAUTER equitherm®
EQJW245
Electronic heating controller
Operating manual
7010042003 A

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Content
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 first 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 first 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, configurable output and
second final control element) 75
5.4 Set valve position 76
5.5 Set status of other outputs (pumps, configurable 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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EQJW245
Content
Table of figures 121
List of tables 123
Index 125

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Symbols used in this manual
Symbols used in this manual
Information
Information concerning the use of the product.
Factory setting of the EQJW245
(e.g. manufacturer‘s specified 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, flashing
‚09:00‘ is shown on the display, not flashing
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
TAoutdoor temperature
TFflow temperaturev
TFi actual value for flow temperature
TFS setpoint for flow temperature
TFsmax maximum limitation for setpoint of TF
TFsmin minimum limitation for setpoint of TF
TRroom temperature
TRF return temperature
TRi actual value of room temperature
TRmax maximum limitation of adjusting range for TRS
TRmin minimum limitation of adjusting range for TRS
TRS setpoint for room temperature
TS/W heating limit
TWdomestic water temperature
TYvalve running time
UPheating pump
Xiactual value
XPproportional 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 flow 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 fixed 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 fire 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 flow 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
1
°C
sec
h
equitherm
®
EQJW245
1
2
PROG
PROG
12
LOG
PROG
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 viewFig.1
1Rotary switch
2 Display
3Input knob
4 ESC button
The device has three rotary switches with 10 positions, an input knob and a
button.
Top2.2 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
mode1Setpoint adjustment Reduced mode
Regulator is continuously in Redu-
ced mode
Enter weekly and yearly programme for
heating
Regulator is continuously in back-up
mode2Limited (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
mode1Setpoint adjustment Reduced mode
Regulator is continuously in Redu-
ced mode
Enter weekly and yearly programme
for heating
Regulator is continuously in back-
up mode2
Limited (unlimited) temperature
change
Access to manual mode for heating Access to log book
1Normal mode corresponds to nominal mode as per EN 12098-1
2Back-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 konfigurier-
barer Ausgang
Zugang zum Handbetrieb für Trink-
wasser, konfigurierbarer 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 confirm a flashing 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. flashing: temperature change for limited (unlimited) period
Heating circuit is in normal mode flashing. Optimisation takes place on
changing to normal mode.
Heating circuit is in Reduced mode flashing. Optimisation takes place
on changing to reduced or off mode.
Heating circuit is in back-up mode. flashing: 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. flashing: display of actual temperature
Display of flow 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. flashing: with increased temperature
4
Charge pump switched on
3
Configurable 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 first time3.1
When you operate the equitherm®EQJW245 for the first 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 the3.1.1 time
To enable you to set the time, you must first 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 automatic1.
mode.
The time is shown.Â
0000
Press the input knob.2.
The time flashes ...Â
15:06
Turn the input knob.3.
The time is set.Â
Procedure

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Commissioning
15:06
Press the input knob again.4.
The new time is confirmed.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 the3.1.2 date
To enable you to set the date, you must first 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 automatic1.
mode.
The time is shown.Â
0 1.0 1
Turn the input knob until the date is2.
displayed
(day/month and year are shownÂ
alternately).
2000
Press the input knob.3.
The number of the year flashes...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 confirmed 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 confirmed.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 specified 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 first 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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Commissioning
Back-up mode
Reduced mode
Normal mode
Automatic mode
SE
Set the upper rotary switch to the1.
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 first SERVice parameter isÂ
displayed
View SERVice parameters3.2.2
SP 19
Turn the input knob.1.
Select the SERVice parameter you2.
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.