Ceta 104 Operating Manual

Operating manual

104

Heating circuit controller with burner control and DHW charging control

Version 0933-10
Art. 0450021002

BA_CETA104_EbV_EN_0450021002_0933-10.book Seite 1 Dienstag, 8. September 2009 10:20 10

Contents

Scope of delivery ...............................................................................................................1

General ................................................................................................................................1

Intended use .....................................................................................................................1

Safety ..................................................................................................................................1

General key functions ...................................................................................................... 2

Version display (when starting)......................................................................................2

Basic display ..................................................................................................................... 3

Functions with direct access ..........................................................................................4

Menu level .........................................................................................................................5

Parameter description .....................................................................................................8

Installation ...................................................................................................................... 21

Connection diagram .......................................................................................................22

Fault clearance ................................................................................................................23

Sensor resistance values ..............................................................................................24

Declaration of conformity ..............................................................................................25

Technical data .................................................................................................................26

Liability .............................................................................................................................26

Disposal ...........................................................................................................................26

© Elektronikbau- und Vertriebs GmbH

Heisterner Weg 8 - 12

D-57299 Burbach

This document may not be reproduced nor disclosed to third parties, particularly competitors, in original
or copy form without our prior explicit consent. The document is subject to our proprietary rights and
copyrights.

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1

Scope of delivery

General

Systems with unmixed heating circuit are controlled via the heating circuit
controller. Required heating circuit temperature is determined in the flow,
depending on outside temperature.

The burner control adjusts the heat generator temperature via a switching contact
at the boiler immersion sensor.

The DHW control is accessing a DHW charging pump and controls the DHW
requirement in a DHW tank at the tank immersion sensor.

Intended use

The unit is manufactured in accordance with state of the art technology and
approved safety regulations. Nevertheless, using the unit can cause danger to the
user or third persons, or damage to the unit and other assets. The unit must be
used exclusively as heating circuit controller with burner control and DHW
charging control.

Safety

All electrical connections, safety measures and protections have to be carried out
by an authorised professional electrician according to the valid standards and VDE­guidelines, as well as the local regulations. The electrical connection must be a
fixed connection according to VDE 0100.

Hazard symbols in this operating manual

1. 1x Central unit CETA 104

2. 1x Outside sensor AF200

3. 1x Boiler immersion sensor
KVT 20/2/6

4. 1x Tank immersion sensor
KVT 20/2/6

5. 8x Screw, plate 2.9x19 mm

6. 3x Screw assembly 4x35 mm

7. 3 x Plu g U6

8. 2 x Cable clamp

Hazard!
This symbol indicates information that warns of possible safety
risks or severe and fatal injuries!

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General key functions

2

1. General key functions

Prog

•Change selected submenus

•Change (parameter) setting

•Save value

+ (Plus) or - (Minus)

•Change parameter

•Change menu item

Esc

•Exit setting

•Keep old value

•Select next higher menu level

Esc-Lang

•Return to basic display

2. Version display (when starting)

c 104= Type designation Ceta 104

1.5= Version display (due to update it can
differ from example shown)

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3

Basic display

3. Basic display

Explanation of symbols

Display weekday

14:48 Display time

47.5°C Temperature F1 heat generator

Display heat generator in operation

Display pump function heating circuit

Display pump function tank loading

Automatic mode heating circuit after timer program I or II

Heating mode heating circuit
(Operating mode AUTOMATIC or HEATING)

Reduced mode heating circuit
(Operating mode AUTOMATIC or RED. HEATING)

Standby heating circuit

Summer switch-off heating circuit

Frost protection heating circuit

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Functions with direct access

4

4. Functions with direct access

Manual operation

— Activate by pressing and holding button
— Change heat generator setpoint via buttons

and

— end function by pressing button

Adjustment room setpoint

Press buttons and in the basic display to directly set room day
temperature. Such a variation changes the parameter 06:02 (see parameter
description).

Controller is in manual mode

Function: Manual operation allows manual start-up of the system, e.g. to

perform emission measurement.
The heat generator adjusts the temperature to the set value
— The heating circuit pump runs continuously
— The DHW charging pump runs continuously

Caution!
This function shall only be used by an authorised
professional. Heating circuit temperatures are not monitored
during measurement of emission. Faulty operation or
unsupervised operation of this function may result in
damages to the heating system.

+

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5

Menu level

5. Menu level

Basic display

Prog

Esc

01

Menu 01

02

Menu 02

+

-

27

Calibration

28

Relay test

02:01

Parameter 01

02:02

Parameter 02

02:nn

Last parameter

+

-

+

-

+

-

+

-

Prog

Select menu level

Select parameters

Esc

Value1

Prog

Value 2

+

-

Value n

+

-

Set parameter value

Prog

Return
without
saving

Return
and save

Esc

General menu structure

Basic display

Prog

Esc

01

Info

02

Prog.

Time programs

+

-

27

Sensor

adj.

28

Relay test

+

-

+

-

+

-

+

-

Prog

Select menu level

Select menu level

Esc

HEZBEGINN

Prog

HEIZENDE

+

-

+

-

Set
parameter
value

Prog

Return
without
saving

Return
and
save

Prog

Menu structure time programs

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Menu level

6

Overview of menu level

Basic display

01

Info

02

Time programs

06

03:01

Outdoor actual

03:02

Outdoor long-term

03:03

Outdoor min

03:04

Outdoor max

04:01

Temperature

heat generator

03:01

Code entry

03:02

AutoSet function

03:04

Building type

06:01 06:02 06:03

03

System

06:04

06:05

06:20

06:11

06:13

Room factor

06:14 06:15

07

07:01

07:02

07:03

07:04

07:05

07:14

07:11

07:12

26

26:01 26:02

Weekday

27

27:01

27:02 27:04

28

28:01 28:02

28:04

Esc

-

+

-

+

-

+

-

+

-

+

+

-

+

-

Prog

Esc

+

-

+

-

+

-

-

+

-

+

-

-

+

-

+

03:05

Climate zone

04:01

Function of

heat generator

04:02

Heat generator min.

temperature limit

04:03

Heat generator max.

temperature limit

04:04

04

Heat generator

Esc

+

-

04:05

+

-

X3

X3

X3

X3

X3

X3

X3
X5

X3

X3

X3

X3
X4

X3
X4

X3
X4

X3

X3

X3 X3 X3

Prog

Prog

Esc

Esc

Prog

Prog

Prog

Prog

Prog

Prog

Prog

Esc

Esc

Esc

Esc

Esc

05:03

Actual value

modulation depth

X5

05:04

Hydrau.press

X5

05:05

Flue gas

temperature

X5

06:01

Display

heating pump

06:04

Flow setpoint

See menu structure

time programs

See menu structure

time programs

Burner switching

differential

Minimum burner

run time

Heating circuit

Function Room day Room night

Operating mode Time program

Extended pump

running time

Room

thermostat function

Room frost

protection limit

Heat generator

parallel shift

DHW

Function DHW day

DHW night Operating mode

Time program

Temperature

parallel shift

Extended pump

running time

Priority mode

Time setting

Time

Sensor calibration

Calibration sensor 1

Calibration sensor 2

Calibration sensor 4

Relay test

Relay test 1

Relay test 2

Relay test 4

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7

Menu level

X2: Function only in bus connection
X3: Are hidden when activating code 03:09
X4: Only when connecting CETA RC
X5: Only in conjunction with heat generator connection via OpenTherm, and when
supported by heat generator

04:02

Setpoint heat

generator

04:03
Display status
heat generator

03:06

Time for

automatic exit

03:07

Anti-blocking

protection

03:09

Code heating

specialist

03:10
Reset

parameter

06:06

Type of reduced

operation

(ECO/RED)

06:07

Heating

curve/conductance

06:08

Heating system

(exponent)

06:09

System frost

protection

06:10

Summer switch-off

07:06

Legio.prot.(day)

07:07

Legio.protection

(time)

07:08

Legio.protection

(temperature)

07:09

Switching

differential

07:10

Maximum

temperature limit

04:06

Start-up protection

04:07

Start-up protection

switching differential

04:08

Reset counter

X3

X3

X3

X3

X3

X3

X3

X3 X3

X3 X3

X3 X3 X3

05:01

Temperature return

flow sensor

X5

05:02

Setpoint

modulation depth

X5

07:01

Display DHW

charging pump

07:02

DHW actual value

07:03

DHW setpoint

04:04
Starts heat
generator

04:05

Operating hours

heat generator

06:06

Room setpoint

X4

06:05

Room actual

X4

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Parameter description

8

6. Parameter description

01 Information level

Display Designation Description

03:01 Outdoor actual Current outside temperature
03:02 Outdoor long-term Average long-term value of outside temperature. Depending on

set building type (03:04), the value is averaged longer or shorter.
03:03 Outdoor min Minimum outside temperature value (0.00 to 24.00 h)
03:04 Outdoor max Maximum outside temperature value (0.00 to 24.00 h)
04:01 Temperature heat

generator

Actual temperature on heat generator sensor

04:02 Setpoint heat

generator

Setpoint temperature for heat generator

04:03 Display status heat

generator

0: Heat generator outlet is switched off

1: Heat generator outlet is switched on
04:04 Starts

Heat generator

Number of heat generator starts

04:05 Operating hours

Heat generator

Number of heat generator operating hours

05:01 Temperature

Return flow sensor

Actual temperature heat generator return X5

05:02 Setpoint

Modulation depth

Setpoint heat generator-modulation depth (only if X5

system contains information)
05:03 Actual value

Modulation depth

Actual value heat generator-modulation depth (only if X5

system contains information)
05:04 Hydrau.press Water pressure in heating system in bar (only if X5

system contains information)
05:05 Flue gas

temperature

Flue gas temperature of heat generator (only if X5

system contains information)
06:01 Display heating

circuit pump

0: Heating circuit pump is switched off

1: Heating circuit pump is switched on
06:04 Flow heating circuit

setpoint

Flow setpoint temperature for heating circuit

06:05 Room actual Actual temperature in room X4
06:06 Room setpoint Room setpoint temperature for heating circuit
07:01 Display DHW

charging pump

0: Pump is switched off

1: Pump is switched on

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9

Parameter description

02 Time programs

Note: When switch-on and switch-off time are the same, cycle of operation is
switched off.

07:02 DHW actual value Sensor mode: Actual temperature on DHW sensor

Thermostat mode: 0 = Input open

1 = Input closed

07:03 DHW setpoint Setpoint temperature for DHW tank

Weekday

Cycle of
operation

Switch-on
time

Switch-off
time

1 I 06:00 22:00
1II12:0012:00
2 I 06:00 22:00
2II12:0012:00
3 I 06:00 22:00
3II12:0012:00
4 I 06:00 22:00
4II12:0012:00
5 I 06:00 22:00
5II12:0012:00
6 I 06:00 22:00
6II12:0012:00
7 I 06:00 22:00
7II12:0012:00

Display Designation Description

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Parameter description

10

03 Parameter system

Display Designation Description

03:01 Code entry Setting range: 0 … 999

Factory s etti ng: 0

Function:

Show parameters marked with X3.
03:02 Automatic set

function

0=OFF, no automatic sensor detection X3

1=ON, automatic sensor detection
03:04 Building type Setting range: 1: Light construction (mean value over 6 X3

hours)
2: Medium construction
(mean value over 24 hours)
3: Heavy construction

(mean value over 72 hours)
Factory s etti ng: 2
Function:
This parameter considers the building type by adapting the
calculation of the outside temperature mean value according to
its setting.

03:05 Climate zone Setting range: -50 °C … 0 °C X3

Factory setting: -12 °C
Function:
The climate zone is the coldest outside temperature value to be
expected.

03:06 Automatic exit time Setting range: 0.5 ... 10 Min X3

Factory setting: 2 min
Function:
When unit is not operated during the set time, the display
returns to basic display.

03:07 Anti-blocking

protection

Setting range: 0 = OFF X3

1 = ON
Factory s etti ng: O FF
Function:
With this function activated, pump is switched on daily for ca. 20
seconds as protection against blocking during extended switch­off phases (> 24h).

03:09 Code heating

specialist

Setting range: 0 … 999
Factory s etti ng: 0
Function when setting is greater than 0:
Hide parameters marked with X3.

03:10 Total reset Reset to factory settings

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11

Parameter description

04 Parameters heat generator

Display Designation Description

04:01 Function of heat

generator

Setting range: 0 = OFF X3

1 = H-GEN single stage

2 = H-GEN OpenTherm
Fac to r y setti ng: 1
Function:
0: Control of a single-stage heat generator

via a relay output
1: Control of a heat generator with

standardised OpenTherm interface via
setpoint transfer

Note: only possible if OpenTherm logo

is available on CETA 104

04:02 Minimum

temperature limit H­GEN*

Setting range: 5 °C … 95 °C X3
Factory setting: 38 °C
Function:
To protect the heat generator against aggressive condensate, the
minimum temperature limit specified by the manufacturer of the
heat generator must be set.

• Forced switch-on of DHW when value drops below limit

• Switch-off DHW at set value + burner switching differential
If there is no demand from heating system or DHW, the boiler
will be switched off. If the temperature in the heat generator
drops below the heat generator frost protection temperature of
+5°C, the burner will be switched on and the heat generator is
heated to the minimum temperature limit.

04:03 Maximum

temperature limit H­GEN*

Setting range: 5 °C … 100 °C X3
Factory setting: 95 °C
Function:

• Forced switch-off of DHW when value is exceeded

• H-GEN is switched on again at set value – ½SD – 2K

04:04 Burner switching

differential (SD) *

Setting range: 2…30K X3, X5
Fac to r y setti ng: 6K
Function:
On multiple stage heat generators, the setpoint on heat
generator sensor is controlled by the burner switching
differential.

• Switch-on of heat generator at setpoint temperature – ½ SD

• Switch-off of heat generator at setpoint temperature + ½ SD

*

This function shall only be used by an authorised professional.
Incorrect settings can result in system damages.

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Parameter description

12

06 Parameter heating circuit

04:05 Minimum burner

run time

Setting range: 0…20 Min X3
Factory setting: 2 min
Function:
After starting the heat generator, at least the set time must
lapse before the heat generator is deactivated again.
Note: The maximum temperature limit takes priority
over this function.

04:06 Start-up protection Setting range: 5…95 °C X3

Factory setting: 36 °C
Function:
Start-up protection of heating circuits helps in preventing
condensate discharge when heating up in cold condition.

• Switch-off of heating circuits (unmixed circuits, mixed circuits,
DHW loading) when heat generator temperature drops below
the value

• Heating circuits are enabled when heat generator
temperature exceeds the value + start-up prot.switching
differential.

04:07 Start-up protection

switching
differential

Setting range: 2…20K X3
Factory s etti ng: 4 K
Function:
See description of parameter 04:06.

04:08 Reset counter Reset counter of heat generator starts and operating hours

Display Designation Description

06:01 Function Setting range: 0=OFF

1=Unmixed circuit

Factory s etti ng: 1

06:02 Room day Setting range: 5 … 30 °C

Factory setting: 20 °C
Function:
The set temperature is the room setpoint during active cycles of
operation in AUTOMATIC mode and during HEATING mode.

06:03 Room night Setting range: 5 … 30 °C

Factory setting: 16 °C
Function:
The set temperature is the room setpoint between the cycles of
operation in AUTOMATIC mode and during RED. HEATING mode.

Display Designation Description

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13

Parameter description

06:04 Operating mode Setting range: 1: Automatic

2: Heating
3: Red. heating

4: Standby
Fac to r y setti ng: 1
Function:
Automatic: Heating circuit operates in Heating or

Red. heating mode according to the time

program assigned under 06:05
Heating: Heating circuit operates continuously

according to set room day temp. (06:02)
Red. heating: Heating circuit operates continuously

according to set room night temperature

(06:03) under consideration of 06:06
Standby: Frost-protected switch-off of heating circuit

06:05 Time program Setting range: 1: Time program 1

2: Time program 2

3: Time program 1 and 2
Fac to r y setti ng: 1
Function:
Depending on the setting, the heating circuit operates according
to time program 1, 2 or both, as set in menutree 02 (time
programs).

06:06 Type of reduced

operation (ECO/RED)

Setting range: 0: ECO

1: RED
Fac to r y setti ng: 0
Function:
The settings are effective in Reduced operating mode.
ECO: Frost-protected switch-off mode
RED: Reduced mode

Display Designation Description

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Parameter description

14

06:07 Heating curve/

conductance

Setting range: 0.05 … 3.50
Factory s etti ng: 1 .5 0
Function:
Determines the heating curve for the heating circuit.

06:08 Heating system

(exponent)

Setting range: 1.00…10.00 X3
Factory s etti ng: 1.30
Function:
Curvature of heating circuit's heating curve.
Recommendation: 1.10: Floor or other

panel heating systems

1.30: Radiator heating

2.00: Convector and baseboard heating
>3.00: General ventilator applications with
high start temperatures

06:09 Frost protection Setting range: OFF (----) X3

-50 °C ... +10 °C
Factory setting: 3 °C
Function:
To keep the heating system from freezing in switch-off mode, the
controller is equipped with electronic frost protection.
Caution: Faulty operation can result in damages to building!

Display Designation Description

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15

Parameter description

06:10 Summer switch-off Setting range: OFF (----) X3

10 °C ... 30 °C
Factory setting: 20 °C
Function:
Switch-off of heating operation at outside temperatures above
the desired outside temperature.

06:11 Extended pump

running time

Setting range: 0.0…60.0 Min X3
Fac to r y setti ng: 5 m i n
Function:
This function determines extended run time of heating circuit
pump after heating circuit is switched off by time programs.

06:13 Room factor Setting range: 0…500% X3, X4

Fac to r y setti ng: 100%
Function:
This function determines to what extent a deviation of the room
temperature from the setpoint affects the control of boiler flow
temperature.
Corrected room setpoint = set room setpoint - (deviation x room
factor) / 100

06:14 Room thermostat

function

Setting range: Off (----) X3, X4

0.5 … 5K
Factory setting: Off (---)
Function:
This function determines a room temperature limit; if limit is
exceeded, heating is turned off.

06:15 Room frost

protection limit

Setting range: 5…30 °C X3, X4
Factory setting: 10 °C
Function:
This function determines the room setpoint of the corresponding
heating circuit during switch-off mode with frost protection
activated.

06:20 Heat generator

parallel shift

Setting range: 0…20K X3
Fac to r y setti ng: 0K
Function:
The demand value of the heating circuit, plus the shift value, is
transmitted to the heat generator.

Display Designation Description

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Parameter description

16

07 DHW parameters

Display Designation Description

07:01 Function Setting range: 0 = OFF

1 = Sensor mode
2 = Thermostat mode

3 = Automatic mode DHW
Factory s etti ng: 1
Function:
Sensor mode: Control via temperature sensor in

domestic hot water tank
Thermostat mode: Alternatively, DHW heating can also be

controlled via a mechanical temperature

controller (thermostat switching contact)

In this case a DHW thermostat

is connected instead of a DHW sensor

and set to the desired DHW

setpoint. If the contact is closed, DHW

loading takes place at the set DHW

maximum temperature until the contact is

opened again.

07:02 DHW day Setting range: 5 … 65 °C

Factory setting: 50 °C
Function:
The set temperature is the DHW setpoint during active cycles of
operation in AUTOMATIC mode and during HEATING mode.

07:03 DHW night Setting range: 5 … 65 °C

Factory setting: 20 °C
Function:
The set temperature is the DHW setpoint between the cycles of
operation in AUTOMATIC mode and during RED. HEATING mode.

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17

Parameter description

07:04 Operating mode Setting range: 1: Automatic

2: Heating
3: Red. heating

4: Standby
Fac to r y setti ng: 1
Function:
Automatic: DHW operates in Heating or

Red. heating mode according to the time

program assigned under 07:05
Heating: DHW operates continuously according to set

DHW day temperature (07:02)
Red. heating: DHW operates continuously according to set

room night temp. (07:03)
Standby: Frost-protected switch-off of DHW

07:05 Time program Setting range: 1: Time program 1

2: Time program 2

3: Time program 1 and 2
Fac to r y setti ng: 1
Function:
Depending on the setting, DHW operates according to time
program 1, 2 or both, as set in menu tree 02 (time programs).

07:06 Legionella

protection
(day)

Setting range: 0: OFF X3

1 … 7: Monday … Sunday

8: All
Fac to r y setti ng: 1
Function:
A legionella protection function can be activated to eliminate the
legionella germs in the tank. In order to completely kill all
germs, the Legionella protection temperature should be set at
least at 60-65 °C. The legionella protection function is activated
for 1 hour.

OFF: Function is not active
1 … 7: Function is performed once a week on the set

weekday
All: Function is performed each weekday

Display Designation Description

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Parameter description

18

07:07 Legionella

protection (time)

Setting range: 00:00 … 23:00 o'clock X3
Factory setting: 02:00 o'clock
Function:
This value is used to set the time at which the legionella
protection function is to be started on the set weekday (see
07:06).

07:08 Legionella

Protection
(temperature)

Setting range: 10…65 °C X3
Factory setting: 60 °C
Function:
This value is used to specify setpoint temperature for legionella
protection function (see 07:06).

07:09 Switching

differential

Setting range: 2 … 20K X3
Factory s etti ng: 5 K
Function:
To prevent frequent loading of the DHW tank, the DHW setpoint
temperature is adjusted under consideration of a switching
differential.

• Activation of DHW loading at setpoint temperature – ½
switching differential

• Termination of DHW loading at setpoint temperature + ½
switching differential

07:10 Maximum

temperature limit

Setting range: 20 … 80 °C X3
Factory setting: 65 °C
Function:
This function serves as protection of the DHW tank.
Irrespective of parameter settings 07:02, 07:03 and 07:08, at
most the set value will be adjusted.
If exceeded, the charging pump is switched off immediately.
ATTENTION: Observe operating instructions of DHW tank
before making any changes. Excessive maximum temperatures
can result in damages on DHW tank.

07:11 Exceeded load

temperature

Setting range: 0 … 20K X3
Factory s etti ng: 1 0K
Function:
This function determines the lead value for the tank load
temperature through the heat generator, compared to the set
DHW setpoint.
Heat generator setpoint = DHW setpoint +

Exceeded load temperature

Display Designation Description

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19

Parameter description

07:12 Extended pump

running time

Setting range: 0…60 Min X3
Fac to r y setti ng: 5 m i n
Function:
After switching off the heat generator, the tank loading pump is
stopped after a time delay to prevent a safety switch-off in case
of high temperatures.

07:14 Priority mode DHW Setting range: 0: Parallel mode X3

1: Priority mode
Fac to r y setti ng: 1
Function:
Parallel mode: During tank loading the heating circuits

remain operative
Priority mode: During tank loading the heating circuits are

shut down. They are restarted after the

extended running time of the pump (07:12).

Display Designation Description

BA_CETA104_EbV_EN_0450021002_0933-10.book Seite 19 Dienstag, 8. September 2009 10:20 10

Parameter description

20

26 Time setting

27 Sensor calibration

28 Relay test

Display Designation Description

26:01 Time Setting range: 00:00 ... 23:59

Factory s etti ng: Curren t ti me
Function:
Setting of current time.

26:02 Weekday Setting range: 1 ... 7

Factory setting: Current weekday
Function:
Setting of current weekday.

Display Designation Description

27:01 Calibration F1 Setting range: -5K ... +5K

Factory s etti ng: 0K
Function:

Correction of measured sensor value at input of heat generator F1
27:02 Calibration F2 See 27:01 on input DHW sensor F2
27:04 Calibration F4 See 27:01 on input outside sensor F4

Display Designation Description

28:01 Te st o ut p u t 1 Setting range: -0 = OFF

1 = ON
Factory s etti ng: 0
Function:
By changing the value, the output switches heat circuit pump on
and off (test function), independent of function.

28:02 Test output 2 See 28:01 for output DHW charging pump
28:04 Te st o ut pu t 4 See 28:01 for output DHW charging pump

BA_CETA104_EbV_EN_0450021002_0933-10.book Seite 20 Dienstag, 8. September 2009 10:20 10

21

Mounting

7. Mo unting

Drilling pattern for wall fastening

Rail mount

Hazard!
Mounting must be performed by an authorised professional electrician!
Ensure that unit is de-energised before opening it!

1. Remove terminal area cover from
casing.

2. For mounting, first put a screw
into the wall.

3. Hang controller into the opening.

4. Use controller as template for the
other screw holes.

1. Insert mounting feet into rail
mount opening.

2. Lock hook in place by pushing
down.

BA_CETA104_EbV_EN_0450021002_0933-10.book Seite 21 Dienstag, 8. September 2009 10:20 10

Connection diagram

22

8. Connection diagram

Hazard!
Connection must be performed by an authorised professional
electrician! Ensure that unit is de-energised before opening it!

Low voltage connections

L=Phase 230V mains

1=L1 (230V) pump connection unmixed circuit pump (DKP)

2=L1 (230V) pump connection DHW charging pump (SLP)

Connection without function

N=Neutral 230V mains, pumps

Connection H-GEN (isolated)

=Earthing

Bus connections for networking

Connection OpenTherm

RC=Connection CETA RC (option)

F1=Sensor heat generator (KVT20/2/6)

F2=Sensor DHW tank (KVT20/2/6)

Connection without function

F4=Sensor outside temperature (AF200)

230V connections

BA_CETA104_EbV_EN_0450021002_0933-10.book Seite 22 Dienstag, 8. September 2009 10:20 10

23

Fault clearance

9. Fault clearance

To allow an accurate diagnosis in case of malfunction, the unit is equipped with
a fault display system. The faults are shown on the basic display of the unit in
form of an error code.

Fault overview:

Fault code Cause Repair

11-0 Interruption sensor F1 Check cable and plug connection,

replace if necessary
11-1 Short circuit sensor F1 Replace tank sensor
12-0 Interruption sensor F2 See 11-0
12-1 Short circuit sensor F2 See 11-1
13-0 Interruption sensor F3 See 11-0
13-1 Short circuit sensor F3 See 11-1
14-0 Interruption sensor F4 See 11-0
14-1 Short circuit sensor F4 See 11-1
71-6 Data bus OpenTherm

no signal (terminal OT)

Repair malfunction on data bus to

heat generator
72-6 Data bus CETA R C n o signal (termi na l

RC)

Repair malfunction on data bus to

room unit CETA RC
73-2 Unit bus address collision (Terminal

AB)

Set controls of the same type to

different bus addresses (parameter

03:03)
73-6, 74-0 to 74-9 Unit bus error communication

(Terminal AB)

Check bus connection between the

units
5-00 General errors on heat generator

(only for OpenTherm)

Purely display function in CETA

system, troubleshooting on heat

generator
5-00 Locking error on heat generator (only

for OpenTherm)

Only display function in CETA system,

troubleshooting on heat generator
6-00 Blocking error on heat generator

(only for OpenTherm)

Purely display function in CETA

system, troubleshooting on heat

generator

BA_CETA104_EbV_EN_0450021002_0933-10.book Seite 23 Dienstag, 8. September 2009 10:20 10

Sensor resistance values

24

10. Sensor resistance values

Depending on temperature:

PT1000 KVT20/2/6, AF200

T (°C) R (kOhm) T (°C) R (kOhm)

40
50
60
70
80
90

100

110
120
130
140
150
160
170
180
190

200

210

220
230
240
250

1.155

1.194

1.232

1.271

1.309

1.347

1.385

1.423

1.461

1.498

1.536

1.573

1.611

1.648

1.685

1.722

1.758

1.795

1.832

1.868

1.905

1.941

10
12
14
16

18
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95

100

1.783

1.812

1.840

1.869

1.898

1.928

2.002

2.078

2.155

2.234

2.314

2.395

2.478

2.563

2.648

2.735

2.824

2.914

3.005

3.098

3.192

3.287

BA_CETA104_EbV_EN_0450021002_0933-10.book Seite 24 Dienstag, 8. September 2009 10:20 10

25

Declaration of conformity

11. Declaration of conformity

BA_CETA104_EbV_EN_0450021002_0933-10.book Seite 25 Dienstag, 8. September 2009 10:20 10

Technical Data

26

12. Technical Data

13. Liability

Our general terms and conditions of business are generally applicable. Any liability
claims based on failure to observe operating manual as well as safety instructions
contained therein, are excluded. Subject to technical modifications.

14. Disposal

Dispose of all replaced parts, and eventually the controller itself, in an
environmentally sound manner in compliance with applicable statutory
regulations of the corresponding country.

Mains voltage: 230V +6%/ -10%
Rated frequency: 50...60Hz
Power input: max. 2.1VA
Fuse: 6.3A
Output relay contact load: 2 (2)A
Ambient temperature: -10...+50 °C
Storage temperature: -25...+80 °C
Degree of protection: IP 30
Protection class according to EN 60730: II
CE compliance: 89/336/EEC
Casing dimensions: 145.5 x 161 x 48 mm (W x H x D)
Casing material: ABS V0
Weight: 420g
Mains connection technology:

Screw terminals 1.5 mm

2

Sensor connection technology:

Screw terminals 1.0 mm

2

Company stamp:

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