sauter equitherm EQJW126F001 Service manual

SAUTER equitherm®
Heating and District Heating Controller
EQJW126F001
Mounting and Operating Instructions
Firmwareversion 2.34,
September 2017

Safety instructions
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BA_EQJW126F001_EN001
Important safety instructions
For your own safety, observe the following instructions on the installation, start up
and operation of the controller:

The device may only be installed, started up or operated by trained
and experi-enced personnel familiar with the product.

The controller has been designed for use in electrical power systems.
For wi r-ing and maintenance, you are required to observe the relevant
safety regula- tions.
In addition, the following applies to prevent damage to the controller:

Proper shipping and appropriate storage are assumed.
Definitions of the signal words used in these instructions
DANGER!
indicates a hazardous situation which,
if
NOTICE
indicates a property damage message.
not avoided, will result in death or serious
injury.
Note: Supplementary explanations,
information and tips
WARNING!
indicates a hazardous situation which,
if not avoided, could result in death or
serious injury.

Contents
BA_EQJW126F001_EN001 3
ContentsPage
1Operation............................................................................................... 5
1.1 Operating controls ....................................................................................5
1.1.1 Rotary pushbutton.....................................................................................5
1.1.2 Rotary switch ..............................................................................................5
1.2 Operating modes ......................................................................................6
1.2.1 Setting the operating modes ..................................................................6
1.3 Display .........................................................................................................7
1.4 Opening the information level ................................................................8
1.5 Setting the controller time........................................................................9
1.6 Setting the times-of-use ..........................................................................10
1.7 Setting the party mode ..........................................................................11
1.8 Activating the extended information level.........................................12
1.8.1 Setting public holidays............................................................................13
1.8.2 Setting vacation periods ........................................................................14
1.9 Entering day and night set points .........................................................16
2Start-up................................................................................................. 18
2.1 Activating and deactivating functions ...............................................18
2.2 Changing parameters ............................................................................20
2.3 Calibrating sensors ..................................................................................21
2.4 Resetting to default values ....................................................................22
3Manual operation................................................................................ 23
4Hydraulic system ................................................................................. 24
5Functions of the heating circuit.......................................................... 25
5.1 Weather-compensated control............................................................25
5.1.1 Gradient characteristic ..........................................................................26
5.1.2 Four-point characteristic ........................................................................28
5.2 Fixed set point control.............................................................................29
5.3 Underfloor heating/drying of jointless floors........................................29
5.4 Deactivation depending on outdoor temperature..........................31
5.4.1 OT deactivation value in rated operation..........................................31
5.4.2 OT deactivation value in reduced operation ....................................32
5.4.3 OT activation value in rated operation...............................................32
5.4.4 Summer mode..........................................................................................32
5.5 Delayed outdoor temperature adaptation .......................................33
5.6 Optimization .............................................................................................34
5.7 Flash adaptation......................................................................................35
5.7.1 Flash adaptation without outdoor sensor ...........................................35

Safety instructions
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5.8 Adaptation ...............................................................................................36
5.9 Cooling control........................................................................................ 37
6System-wide functions........................................................................ 39
6.1 Automatic summer time/winter time changeover........................... 39
6.2 Frost protection ....................................................................................... 39
6.3 Forced operation of the pumps........................................................... 39
6.4 Return flow temperature limitation ...................................................... 40
6.5 Condensate accumulation control..................................................... 41
6.6 Three-step control ................................................................................... 42
6.7 On/off control.......................................................................................... 42
6.8 Continuous control in control circuit Rk1 ............................................ 42
6.9 Locking manual level ............................................................................. 43
6.10 Locking the rotary switch....................................................................... 44
6.11 Setting a customized key number ....................................................... 44
7Operational faults................................................................................ 45
7.1 Error list....................................................................................................... 45
7.2 Sensor failure ............................................................................................ 46
7.3 Temperature monitoring........................................................................ 46
7.4 Error status register .................................................................................. 46
7.5 Sending text messages in case of error .............................................. 47
8Communication .................................................................................. 49
8.1 RS-232/modem communications module ......................................... 50
8.2 RS-485 communications module.......................................................... 51
8.3 Description of communication parameter settings.......................... 52
8.4 Meter bus/Modbus gateway................................................................ 53
8.4.1 Activating the meter bus....................................................................... 53
8.4.2 Flow rate and/or capacity limitation using meter bus ..................... 54
8.5 Memory module...................................................................................... 56
8.6 Data logging............................................................................................ 56
9Installation............................................................................................ 57
10 Electrical connection.......................................................................... 60
12 Appendix ............................................................................................. 65
12.1 Function block lists .................................................................................. 65
12.2 Parameter lists.......................................................................................... 71
12.3 Sensor resistance tables......................................................................... 77
12.4 Technical data ........................................................................................ 79

Contents
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12.5 Customer data ........................................................................................ 80

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Operation
1 Operation
The controller is ready for use with the default temperatures and operating
schedules. On start-up, the current time and date need to be set at the
controller (–> section 1.5).
1.1 Operating controls
The operating controls are located in the front panel of the controller.
1.1.1 Rotary pushbutton
– * +
Rotary pushbutton
Turn []:
Display, select parameters and function blocks
Press ]:
Confirm adjusted selection or settings
1.1.2 Rotary switch
The rotary switch is used to set the operating mode and the relevant parameters
for each control circuit.
Information level, rotary switch in normal position
Operating modes
Manual level
Day set point (rated room temperature)
Night set point (reduced room
temperature)
Times-of-use for
heating Party mode
Controller time
Configuration and parameter level

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Operation
1.2 Operating modes
Day mode (rated operation) : Regardless of the programmed times-of-use and
summer mode, the set points relevant for rated operation are used by the
controller.
Night mode (reduced operation) : Regardless of the programmed times-of-use,
the set points relevant for reduced operation are used by the controller.
Stand-by mode : Regardless of the programmed times-of-use, control
operation is deactivated. Only the frost protection is activated, if need be.
Automatic mode : During the programmed times-of-use, the controller works in
rated operation. Outside these times-of-use, the controller is in reduced operation,
un- less control operation is deactivated depending on the outdoor temperature.
The con- troller switches automatically between both operating modes.
Manual mode : Valves and pumps can be controlled manually (–> section 3).
1.2.1 Setting the operating modes
1. Turn the rotary switch to (operating modes). blinks on the display.
2. Select the operating mode []: , , or
3. Confirm the operating mode ].
4. Return the rotary switch to normal switch position (information level).
Note: In automatic mode, the momentary stage of the operating schedule (
for day mode or for night mode) is displayed in the information level together with
the icon .

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Operation
1.3 Display
The display indicates the time as well as information about the operation of the
control- ler when the rotary switch is at the normal position (information
level). The times-of-use together with temperatures of the various control circuits
can be viewed on the display by turning the rotary pushbutton. The times-of-use
are represented by black squares below the row of numbers at the top of the
display. Icons indicate the operating status of the controller.
Public holiday
mode Vacation
mode
Operational
fault
Frost
protection
Heating circuit 1
Automatic mode
Night mode
Day mode
Manual
mode
Stand-by mode
Circulation pump
UP1*
Valve Rk1
opening
Valve Rk1 closing

BA_EQJW126F001_EN001 9
Operation
Fig. 1 · Icons

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BA_EQJW126F001_EN001
Operation
The controller status can be displayed in the information level (–> section 1.4).
1.4 Opening the information level
At the normal switch position (information level), the time, date, public holidays
and vacation periods as well as the temperatures measured by the connected
sensors and their set points can be retrieved and displayed.
Note: Data can also be viewed in the operating level (manual
mode). To do so, select Info, confirm and proceed as described
below.
Proceed as follows:
1. Select value [].
Depending on the configuration of the controller, the current values of the
fol- lowing data points are displayed one after the other:
: Time
Room temperature, heating circuit
Outdoor temperature
Temperature at flow sensor VF,heating circuit
Temperature at return flow sensor RüF
2. By confirming a data point ] its set point/limit is displayed. When the time is
in- dicated on the display, the date appears on pressing the rotary
pushbutton.

BA_EQJW126F001_EN001 11
Operation
1.5 Setting the controller time
The current time and date need to be set immediately after start-up and after a
power failure of more than 24 hours has occurred. This is the case when the time
blinks on the display.
Proceed as follows:
1. Turn the rotary switch to (controller
time). Display: time, and blink.
2. Edit the controller time [].
3. Confirm the adjusted time
]. Display: year
4. Edit the year [].
5. Confirm the adjusted year
]. Display: date (day.month)
6. Edit the date [].
7. Confirm the adjusted date
]. Display: time
8. Return the rotary switch to normal switch
position (information level).
Note: The correct time is guaranteed after a power failure of 24 hours. Normally, the
cor- rect time is still retained at least 48 hours after a power failure.

Operation
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1.6 Setting the times-of-use
Three times-of-use can be set for each day of the week.
Parameters
WE*
Range of values
Period/day
1–7
1–7, 1, 2, 3, 4, 5, 6, 7 with 1–7 = every day,
1 = Monday, 2 = Tuesday, ..., 7 = Sunday
Start first time-of-use 6:00 0:00 to 24:00h; in steps of 15 minutes
Stop first time-of-use 22:00 0:00 to 24:00h; in steps of 15 minutes
Start second time-of-use 22:15 0:00 to 24:00h; in steps of 15 minutes
Stop second time-of-use 22:15 0:00 to 24:00h; in steps of 15 minutes
Start third time-of-use –0:00 to 24:00h; in steps of 15 minutes
Stop third time-of-use
–
0:00 to 24:00h; in steps of 15 minutes
* Default values (WE) valid for heating circuits
Proceed as follows:
1. Turn the rotary switch to (times-of-
use). blinks.
(in steps of 15
blink.
an
Display: START,
4. Edit start time
3. Activate editing mode for period/day
2. Select period/day for which the times-of-use
are
to be valid []:
1–7 = every day,

Operation
BA_EQJW126F001_EN001 11
For daily setting, repeat steps 2 to 7 in the same sequence.
Note: Do not use the 1–7 menu to check the programmed times-of-use.
If this menu is opened after the times-of-use have been set, the schedule
programmed for Monday is also adopted for all other days of the week.
8. After setting all times-of-use:
Return the rotary switch to normal switch position (information level).
1.7 Setting the party mode
Using the Party mode function, the controller continues or activates the day mode
dur- ing the time when the party timer is active, regardless of the programmed
times-of-use. When the party timer has elapsed, the party mode timer is reset to
00:00.
Parameter
WE
Range of values
Continue/activa
te
rate
d
operation 0 h 0 to 48 hours
Proceed as follows:
1. Turn the rotary switch to (party
mode). blinks.
Display: 00:00 or indicates the remaining time of party timer.
5. Confirm start time [ ].
Display: STOP
6. Edit stop time [].
(in steps of 15 minutes)
7. Confirm stop time [ ].
Display: START
The indicated time corresponds to the stop
time for the first time-of-use plus 15 minutes.
To set the second and third times-of-
use, repeat
steps 5 to 7.
If no further times-of-use for the selected pe-
riod/day are to be programmed, confirm the
dis- played start time twice (2x [ ]).

Operation
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2. Select how long the day mode is to continue running
[]. This setting is made in steps of 15 minutes.
3. Return the rotary switch to normal switch position (information level).
Note: The party timer counts down in steps of 15 minutes.
1.8 Activating the extended information level
If the extended information level is activated, further information can be viewed
after the listed data points:

Capacity
 Flow
rate V
·

Publicholidays (can be changed, see section 1.8.1)

Vacation periods (can be changed, see section 1.8.2)

Valve positions

Switching states of the binary inputs

InFo 2: After confirming the level [ ] the following data appear in the
sequenceshown below:
Controller ID
Memory capacity of data logging module (section
8.6) 255
Operating hours of solar circuit pump (refer to
section 6.4)
Opening the extended information level:
1. Turn the rotary switch to (parameter and configuration
level). Display: 0 0 0 0, blinks.
2. Set key number 1999 [].
3. Confirm key number ].
Display: 0000
4. Return the rotary switch to normal switch position (information level).

Operation
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Note:
– The extended information level is deactivated when the key number 1999 is
re-en- tered.
– The key number 1999 cannot be used to change the controller
configurationand parameterization. A separate key number exists for
configuration and parameterization. Refer to section 2.
1.8.1 Setting public holidays
On public holidays, the times-of-use specified for Sunday
apply. A maximum of 20 public holidays may be entered.
Parameter WE Level / Range of values
Public holidays –Extended information
level/
01.01 to 31.12
Proceed as follows:
1. In the extended information level (normal
switch position ) select data point for
public holidays [].
Display:
2. Open data point for public holidays.
3. If applicable, select – – – –.
To enter additional public holidays, re-select – – . – – and repeat the steps 4
to 6.
Note: Public holidays can also be set in PA5 parameter level (–> section 2.2).
Deleting a public holiday:
1. Under data point for public holidays, select the holiday you wish to delete [].
2. Confirm selection ].
4. Activate editing mode for public holiday
[ ]. and blink.
5. Select public holiday [].
6. Confirm public holiday [ ].

Operation
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BA_EQJW126F001_EN001
3. Select – –.– – [].
4. Confirm selection ].
The public holiday is deleted.
Note: Public holidays that are not assigned to a specific date should be deleted
by the end of the year so that they are not carried on into the following year.
1.8.2 Setting vacation periods
During vacation periods, the controller constantly remains in reduced operation.
A maximum of 10 vacation periods can be entered.
Parameter
WE
Level / Range of values
Vacation
period
(START, STOP) –Extended information level / 01.01 to 31.12
Proceed as follows:
1. In the extended information level (normal
switch position ) select data point for
vacation peri- ods [].
Display:
2. Open data point for vacation periods
]. Display: START
3. If applicable, select – – – – [].

Operation
BA_EQJW126F001_EN001 15
To enter additional vacation periods, re-select – –.– – and repeat the steps 4 to 9.
Note: Vacation periods can also be set in PA5 parameter level (–> section 2.2).
Deleting vacation periods:
1. Under data point for vacation periods, select the start date of the
period you wish to delete [].
2. Confirm selection ].
3. Select – –.– – [].
4. Confirm selection ].
The vacation period is deleted.
Note: Vacation periods should be deleted by the end of the year so that they are
not car- ried on into the following year.
4. Activate editing mode for start date of
vacation period [ ].
and blink.
5. Edit start date of vacation period [].
6. Confirm start date of the vacation
period. Display: STOP, – –.– –
7. Edit end of vacation period [].
8. Confirm end of vacation period [ ].
The black square at the top of the display
indicate the assignment of the vacation
periods to theindi- vidual control circuits.
9. Select the control circuit to which the current
vaca- tion period should apply [].
Current vacation period applies to heating
cir- cuit 1

Operation
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1.9 Entering day and night set points
The desired room temperature for the day (Day set point) and a reduced room
tempera- ture for the night (Night set point) can be entered in the controller for the
heating circuit.
Switch position
Parameters
WE
Range of values
Day set point
DHW temperature
set
point
Rk1 20 °C
55 °C
0 to 40 °C
Min. to max. DHW temperature
Switch position
Parameters WE Range of values
Night set point
DHW
sustained
temperature
Rk1 15 °C
40 °C
0 to 40 °C
Min. to max. DHW temperature
Proceed as follows:
1. Turn the rotary switch to the requireddata point:
for Day set point or DHW temperature set
point
for Night set point or DHW sustained temperature
blinks.
Display: current set point
2. Adjust set point [].
3. Return the rotary switch to normalswitch position (information level).

Operation
BA_EQJW126F001_EN001 17

Information level
& key number
End
CO6 PA1

Configuration and
CO5 parameter level PA5
(start-up, see section 2)
CO1 PA6
PA1/CO1: Rk1 (heating circuit 1)
PA5/CO5: System-wide parameters
PA6/CO6 Modbus communication
Fig. 2 · Level structure of EQJW126

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Start-up
2Start-up
The modifications of the controller configuration and parameter settings
described in this section can only be performed after the valid key number has
been entered.
The valid key number for initial start-up can be found on page 86. To avoid
unautho- rized use of the key number, remove the page or make the key number
unreadable. In addition, it is possible to enter a new, customized key number (–>
section 7.15).
2.1 Activating and deactivating functions
A function is activated or deactivated in the associated function block. The
numbers 0 to 24 in the top row of the display represent the respective function
block numbers. When a configuration level is opened, the activated function
blocks are indicated by a black square on the right-hand side below the
function block number. For more details on function blocks, refer to section 12.1.
The functions are grouped by topics:

CO1: Rk1 (Heating circuit 1)

CO2: Not applicable

CO3: Not applicable

CO4: Not applicable

CO5: System-wide functions

CO6: Modbus communication
Proceed as follows:
1. Turn the rotary switch to (configuration and parameter
level). Set valid key number [].
3. Confirm key number ].
Display: PA_
4. Select configuration level [].
5. Open configuration level ].