OPERATING INSTRUCTIONS
NORDMANN
ENGINEERING
Steam air humidier
Nordmann AT4
2559416 EN 1110
3
1 Introduction 4
1.1 To the very beginning 4
1.2 Notes on the operating instructions 4
2 For your safety 6
3 Product Overview 8
3.1 Models overview 8
3.2 Identicationoftheunit 9
3.3 Steamhumidierconstruction 10
3.4 Functional description 11
3.5 Humidicationsystemoverview 13
4 Operation 17
4.1 Commissioning 17
4.2 Notes on operation 18
4.2.1 Functionofthedisplayandoperatingelements 18
4.2.2 Remoteoperatingandfaultindication 19
4.2.3 Notes on the operation at ambient
temperatures≤0°C 19
4.2.4 Inspections during operation 19
4.3 Carrying out manual draining 20
4.4 Takingtheunitoutofoperation 20
5 Working with the unit control 21
5.1 Factory settings 21
5.2 Operating the control unit and menu overview 22
5.3 Interrogationoftheoperatinginformationin
the indication level 23
5.4 Unit settings 24
5.4.1 Launching the unit settings menu 24
5.4.2 Selecting the dialogue language 24
5.4.3 Control settings 24
5.4.3.1 Selecting the signal source 25
5.4.3.2 Selecting the regulation mode 25
5.4.3.3 Selecting the control signal 25
5.4.3.4 Conguringhumiditysetpoint 26
5.4.3.6 Settingtheproportionalrangefortheinternal
P/PI controller 27
5.4.3.7 SettingtheintegraltimefortheinternalPIcontroller 27
5.4.3.8 Activating/Deactivating the supply air limitation 27
5.4.3.9 Selecting the supply air limitation signal 28
5.4.3.10 Settingthelowerlimitvalueforthe
supply air limitation 28
5.4.3.11 Settingtheupperlimitvalueforthe
supply air limitation 28
5.4.4 Selecting the cylinder type 29
5.4.5 ConguringtheSCsystem 29
5.4.5.1 Activating/deactivating the SC system 29
5.4.5.2 SettingtheoperationtimeoftheSC-Pump 30
5.4.6 Conguringthecapacitylimitation 30
5.4.7 ConguringtheOn/Offtimer 32
5.4.8 Water management settings 33
5.4.8.1 Selectingtheconductivityrangeofthesupplywater 33
5.4.8.2 Settingthedrainfactor 33
5.4.8.3 Settingtheoperatingmodeforstandbyoperation 34
5.4.8.4 Activating/Deactivatingtheforceddraining 36
5.4.8.5 Settingthetimeofoperationafterwhicha
forceddrainingtakesplace 37
5.4.9 Setting the date 37
5.4.10 Setting the time 37
5.4.11 Setting the display contrast 37
5.5 Modbus settings 38
5.5.1 SettingsforModbusnetworks 38
5.5.2 Settingsforthecommunicationwiththe
optional remote terminal 39
Contents
5.6 Diagnosticfunctions 40
5.6.1 Interrogationoftheerrorhistory 40
5.6.2 Interrogationofunitinformation 41
5.6.3 Performingremoterelaytests 42
5.6.4 PerformingModuletests 42
5.7 Working with the remote terminal 43
5.7.1 Menu overview remote terminal 43
5.7.2 Remote terminal settings 44
5.7.2.1 Selecting the dialogue language 44
5.7.2.2 Settingthenumberofhumidiersconnected
to the remote terminal 44
5.7.2.3 Interrogationoftheerrorhistoryofthe
remote terminal 44
5.7.2.4 Resettingtheerrorhistorylistofthe
remote terminal 45
5.7.2.5 Setting the baudrate 45
5.7.2.6 Setting the display contrast 45
6 Maintenance 46
6.1 Important notes on maintenance 46
6.2 Maintenance list 47
6.3 Removingandinstallingpartsformaintenance 48
6.3.1 Removalandinstallationofthesteamcylinder 48
6.3.2 Removalandinstallationofthedraincup 51
6.3.3 Removalandinstallationofthewatercup
and the water hoses 52
6.3.4 Removalandinstallationofthedrainpump 53
6.3.5 Removalandinstallationoftheinletvalve 54
6.3.6 Removalandinstallationofthecylinderreceptacle 55
6.4 Notes on cleaning the unit components 56
6.5 Notes on cleaning agents 58
6.6 Resetting the maintenance indication 58
7 Fault elimination 59
7.1 Fault indication 59
7.2 Malfunctionlists 60
7.2.1 Systemfaults 60
7.2.2 Unitfaults 61
7.3 Resetting the error indication (red LED lights) 63
7.4 Notesonfaultelimination 63
7.5 Replacing the backup battery on the control board 64
8 Taking out of service/Disposal 65
8.1 Takingoutofservice 65
8.2 Disposal/Recycling 65
9 Productspecications 66
9.1 Technical data 66
9.2 Wiring diagram Nordmann AT4 67
9.2.1 Wiring diagram Nordmann AT4 single units 67
9.2.2 Wiring diagram Nordmann AT4 double units 68
4
1 Introduction
1.1 To the very beginning
We thank you for having purchased the steam humidier Nordmann AT4.
The steam humidier Nordmann AT4 incorporates the latest technical ad
van ces and meets all recognized safety standards. Nevertheless, improper
use of the Nordmann AT4 may result in danger to the user or third parties
and/or impairment of material assets.
To ensure a safe, proper, and economical operation of the steam humidier
Nordmann AT4, please observe and comply with all information and safety
instructions contained in the present operating instructions.
If you have questions, which are not or insufciently answered in this
documentation, please contact your Nordmann supplier. They will be glad
to assist you.
1.2 Notes on the operating instructions
Limitation
The subject of these operating instructions is the steam humidier
Nordmann AT4. The various accessories are only described insofar as this
is necessary for proper operation of the equipment. Further information on
accessories can be obtained in the respective instructions.
These operating instructions are restricted to the commissioning, opera-
tion, servicing and trouble shooting of the steam humidier Nordmann
AT4 and is meant for well trained personnel being sufciently qualied
for their respective work.
These operating instructions are supplemented by various separate items
of documentation (installation instructions, spare parts list, manuals for ac
cessories, etc.). Where necessary, appropriate crossreferences are made
to these publications in the present documentation.
5
Explanation of the symbols used in this manual
CAUTION!
The catchword “CAUTION” designates notes in this documentation that, if
neglected, may cause damage and/or malfunction of the unit or other
material assets.
WARNING!
The catchword “WARNING” used in conjunction with the general caution
symbol designates safety and danger notes in this documentation that, if
neglected, may cause to injury to persons.
DANGER!
The catchword “DANGER” used in conjunction with the general caution
symbol designates safety and danger notes in this documentation that, if
neglected, may lead to severe injury or even death of persons.
Safekeeping
Please safeguard these operating instructions in a safe place, where it can
be immediately accessed. If the equipment changes hands, the documenta
tion should be passed on to the new operator.
If the documentation gets mislaid, please contact your Nordmann sup
plier.
Language versions
The present operating instructions are available in various languages. Please
contact your Nordmann supplier for information.
Copyright protection
The present operating instructions are protected under the Copyright Act.
Passingon and reproduction of the manual (or part thereof) as well as ex
ploitation and communication of the contents are prohibited without written
permission by the manufacturer. Violation of copyright terms is subject to
legal prosecution and arises liability for indemnication.
The manufacturer reserves the right to fully exploit commercial patent
rights.
6
2 For your safety
General
Every person working with the Nordmann AT4 must have read and under
stood the present operating instructions before carrying out any work.
Knowing and understanding the contents of the operating instructions is a
basic requirement for protecting the personnel against any kind of danger,
to prevent faulty operation, and to operate the unit safely and correctly.
All ideograms, signs and markings applied to the unit must be observed
and kept in readable state.
Qualication of personnel
All actions described in the present operating instructions (operation, main
tenance, etc.) must be carried out only by well trained and sufciently
qualied personnel authorised by the owner.
For safety and warranty reasons any action beyond the scope of this
manuals must be carried out only by qualied personnel authorised by the
manufacturer.
It is assumed that all persons working with the Nordmann AT4 are familiar
and comply with the appropriate regulations on work safety and the preven
tion of accidents.
Intended use
The steam humidier Nordmann AT4 is intended exclusively for air humidication via a steam distributor or a fan unit approved by the manufacturer within the specied operating conditions (see chapter 9 “Product
specications”). Any other type of application without the express written
consent of the manufacturer is considered as not conforming with the intended
purpose and may lead to the Nordmann AT4 becoming dangerous.
Operation of the equipment in the intended manner requires that all the
information in these instructions is observed (in particular the safety
instructions).
7
Danger that may arise from the unit
DANGER! Danger of electric hazard!
One may get in touch with live parts when the unit is open. Touching
live parts may cause severe injury or danger to life.
Prevention: Before carrying out any work set the Nordmann AT4 out of
operation as described in chapter 4.4 (switch off the unit, disconnect it
from the mains and stop the water supply) and secure the unit against
inadvertent powerup.
WARNING! Danger of burning!
The Nordmann AT4 produces steam. When producing steam, the
steam cylinder inside the humidier gets very hot (up to 100 °C). If
the unit is opened immediately after having produced steam there
is danger of burning when touching the steam cylinder.
Prevention: Before carrying out any work set the Nordmann AT4 out of
operation as described in chapter 4.4, then wait until the steam cylinder
has cooled down sufciently thus preventing danger of burning.
Behaviour in case of danger
If it is suspected that safe operation is no longer possible, then the
Nordmann AT4 should immediately be shut down and secured against
accidental power-up according to chapter 4.4. This can be the case
under the following circumstances:
– if the Nordmann AT4 is damaged
– if the electrical installations are damaged
– if the Nordmann AT4 is no longer operating correctly
– if connections and/or piping are not sealed
All persons working with the Nordmann AT4 must report any alterations to
the unit that may affect safety to the owner without delay.
Prohibited modications to the unit
No modications must be undertaken on the Nordmann AT4 without the
express written consent of the manufacturer.
For the replacement of defective components use exclusively original ac-
cessories and spare parts available from your Nordmann supplier.
8
3 Product Overview
3.1 Models overview
Steam air humidiers Nordmann AT4 are available with different heating
voltages and steam capacities ranging from 5 kg/h up to a maximum
of 130 kg/h.
Heating voltage ** Max. steam
capacity
in kg/h
Model
Nordmann AT4
Unit size
Single
unit
Double
unit
small medium large large
400V3
(400 V/3~/50...60 Hz)
5 534 x
8 834 x
15 1534 x
23 2364 x
32 3264 x
45 4564 x
64 6464 x
65 6564 x
90 9064 x
130 13064 x
400V2
(400 V/2~/50...60 Hz)
5 524 x
8 824 x
230V3
(230 V/3~/50...60 Hz)
5 532 x
8 832 x
15 1532 x
23 2362 x
32 3262 x
46 4662 x
64 6462 x
230V1
(230 V/1~/50...60 Hz)
5 522 x
8 822 x
** Other heating voltages on request
Key model designation
Example:
Nordmann AT4 4564 400V3
Product designation:
Unit model:
Heating voltage:
400V/3~/50...60Hz: 400V3
400V/2~/50...60Hz: 400V2
230V/3~/50...60Hz: 230V3
230V/1~/50...60Hz: 230V1
9
3.2 Identicationoftheunit
The identication of the unit is found on the type plate:
Walter Meier (Climate International) Ltd. 3562 Pfäfkon
Type: AT4 4564 Ser.Nr.: XXXXXXX 02.10
Heating voltage: 400V / 3~ / 50...60Hz Power: 33.8 kW
Steam capacity: 45.0 kg/h Ctrl. Voltage: 230V / 1~ / 50...60Hz
Water pressure: 1...10 bar
Made in Switzerland
Type designation Serial number (7 digits) Month/Year
Heating voltage
Maximum steam capacity per unit
Admissible water supply pressure
Power consumption
Control voltage
Field with certication symbols
Module A
Module B
10
3.3 Steamhumidierconstruction
1 Steam cylinder compartment
2 Control compartment
3 Main contactor
4 Power board
5 Connecting terminals
6 Type plate
7 Remote operating and fault indication board (option)
8 Cable openings
9 Control board with CF Card
10 Display and control unit
11 Drain key
12 Operation status indicators
13 Unit switch
14 SC pump
15 Water cup
16 Filling and draining hose
17 Water supply hose
18 Overow hose
19 Inlet valve
20 Drain pump
21 Drain cup
22 Steam cylinder receptacle
23 Drain hose (manual drain)
24 Steam cylinder
25 Level sensor
26 Steam outlet
27 Electrode plug
28 Drain connector
29 Water supply connector
3
2
1
4
5
7
8
10
12
11
9
15
14
18
22
21
16
17
20
19
24
23
27
25
26
28
29
13
6
gure shows medium unit
11
3.4 Functional description
The steam humidier Nordmann AT4 is a pressureless steam generator
that utilizes an electrode heating. The steam humidier Nordmann AT4 is
designed for air humidication via a steam distributor (steam distribution
pipe, fan unit or steam distribution system MultiPipe).
Steam generation
Any time steam is requested, the electrodes are supplied with voltage via
main contactor. Simultaneously, the inlet valve opens and water enters the
steam cylinder from the bottom via water cup and supply line. As soon as the
electrodes come in contact with the water, current begins to ow between
the electrodes, eventually heating and evaporating the water. The more the
electrode surface is exposed to water, the higher is the current consumption
and thus the steam capacity.
Steam distribution pipe
Condensate hose
with siphon
Steam hose
Water cup
Overow hose
Filling and
draining hose
Water supply
hose
Inlet valve
steam cylinder receptacle
Steam cylinder
Electrodes
Level sensor
Drain hose
Control board
Power board
Unit switch
Main contactor
Current sensor
Drain pump
SC pump
Connecting terminals
12
Upon reaching the requested steam capacity, the inlet valve closes. If the
steam generation decreases below a certain percentage of the required
capacity, due to lowering of the water level (e.g. because of the evapora
tion process or drainage), the inlet valve opens until the required capacity
is available again.
If the required steam capacity is lower than the actual output, the inlet valve
is closed until the desired capacity is achieved by lowering of the water level
(evaporation process).
Level monitoring
A sensor provided in the steam cylinder cover detects when the water level
gets too high. The moment the sensor comes in contact with water, the
inlet valve closes.
Drainage
As a result of the evaporation process, the conductivity of the water increases
due to an escalating mineral concentration. Eventually, an inadmissibly high
current consumption would take place if this concentration process were
permitted to continue. To prevent this concentration from reaching a value,
unsuitably high for the operation, a certain amount of water is perio dically
drained from the cylinder and replaced by fresh water.
Lime management
The interval controlled SC pump blows air into the steam cylinder. Thus
keeping the solved minerals in the water in motion as a result they are
discharged with the automatic drain cycles.
Control
The steam production can be controlled with the internal or an external
continuous controller or an external humidistat (24 VDC On/Off control).
13
3.5 Humidicationsystemoverview
System overview duct humidication (single units)
1 Steam humidier
2 Steam connector
3 Water supply connector
4 Water drain connector
5 Water connection hose G 3/4" G 3/8"
(included in the delivery)
6 Filter valve (accessory “Z261”)
7 Manometer (installation recommended)
8 Funnel with siphon (building side)
9 Water drain hose (included in the delivery)
10 Service switch control voltage supply (building side)
11 Service switch heating voltage supply (building side)
12 Steam hose (accessory “DS22”/“DS35”)
13 Condensate hose (accessory “KS10”)
14 Steam distribution pipe (accessory “DV41..”/“DV71..”)
15 Steam distribution system (accessory “MultiPipe”)
16 Continuous humidity controller or humidistat
17 Safety humidistat
ONOFF
ONOFF
11
10
1
2
3
4
5
6
7
DS35
DS22
Z261
12
13
16
14
KS10
DV41
DV71
17
8
9
ONOFF
ONOFF
11
10
17
1
3
5
6
7
Z261
8
2
13
4
DS35
KS10
12
14
DV71
16
9
15
MultiPipe
System 1
System 2
125...1250 µS/cm
1...10 bar
1...40 °C
14
15
DV71
ONOFF
ONOFF
ONOFF
10
11
12
KS10
18
9
8
14
1
2
3
4
6
7
Z261
5
8
17
DS35
13
16
MultiPipe
System 4
System overview duct humidication (double units)
1 Steam humidier
2 Steam connector
3 Water supply connectors
4 Water drain connector
5 Water connection hose G 3/4" G 3/8"
(included in the delivery)
6 Filter valve (accessory “Z261”)
7 Manometer (installation recommended)
8 Funnel with siphon (building side)
9 Water drain hose (included in the delivery)
10 Service switch control voltage supply (building side)
11 Service switch heating voltage supply module A (building side)
12 Service switch heating voltage supply module B (building side)
13 Steam hose (accessory “DS35”)
14 Condensate hose (accessory “KS10”)
15 Steam distribution pipe (accessory “DV71..”)
16 Steam distribution system (accessory “MultiPipe”)
17 Continuous humidity controller or humidistat
18 Safety humidistat
125...1250 µS/cm
1...10 bar
1...40 °C
15
ONOFF
ONOFF
16
17
Turbo 32
13
KS10
15
DS35
12
11
10
1
2
3
4
5
6
7
Z261
8
9
14
FAN4 N-S
FAN4 N-M
ONOFF
11
1
3
5
6
7
Z261
2
4
DS35
13
Turbo 65
Turbo 45
15
ONOFF
10
14
KS10
8
9
System overview room humidication (single units)
1 Steam humidier
2 Steam connector
3 Water supply connector
4 Water drain connector
5 Water connection hose G 3/4" G 3/8"
(included in the delivery)
6 Filter valve (accessory “Z261”)
7 Manometer (installation recommended)
8 Funnel with siphon (building side)
9 Water drain hose (included in the delivery)
10 Service switch control voltage supply (building side)
11 Service switch heating voltage supply (building side)
12 Steam hose (accessory “DS35”/“Z10”)
13 Condensate hose (accessory “KS10”)
14 Ventilation unit (accessory “FAN4 N...”)
15 Ventilation unit (accessory “Turbo..”)
16 Continuous humidity controller or humidistat
17 Safety humidistat
125...1250 µS/cm
1...10 bar
1...40 °C
16
System overview room humidication (double units)
125...1250 µS/cm
1...10 bar
1...40 °C
1 Steam humidier
2 Steam connector
3 Water supply connectors
4 Water drain connector
5 Water connection hose G 3/4" G 3/8"
(included in the delivery)
6 Filter valve (accessory “Z261”)
7 Manometer (installation recommended)
8 Funnel with siphon (building side)
9 Water drain hose (included in the delivery)
10 Service switch heating voltage supply (building side)
11 Service switch heating voltage supply module A (building side)
12 Service switch heating voltage supply module B (building side)
13 Steam hose (accessory “DS35”)
14 Condensate hose (accessory “KS10”)
15 Ventilation unit (accessory “Turbo..”)
16 Continuous humidity controller or humidistat
17 Safety humidistat
16
17
ONOFF
ONOFF
9
8
14
KS10
ONOFF
10
11
12
14
KS10
Turbo 45
15
Turbo 45
Turbo 65
Turbo 65
15
1
4
6
7
Z261
3
2
5
DS35
13
17
4 Operation
4.1 Commissioning
Proceed as follows when putting the steam humidier into operation:
1. Examine the steam humidier and installation for possible damage.
DANGER!
Damaged devices or devices with damaged installation may present
danger to human life or cause severe damage to material assets.
Damaged units and/or units with damaged or faulty installation
must not be operated.
2. Check whether the front panels are mounted and xed with the
screws.
3. Open the shutoff valve in the water supply line.
4. Verify the set humidity value at the humidity controller or at the humidi
stat, and readjust as required.
5. Switch on the service switches for mains supplies (heating and control
voltage).
6. Actuate the unit switch of the steam humidier.
The steam humidier carries out a system test, during which all three
LED’s light up.
If a failure occurs on the system test, a corresponding error message is
shown in the display.
After the system test the unit is in normal operation mode. The display
shows the standard operating display (rst page of the indication level).
Note: The contents of the standard operating display depends on the actual
operating status and on the conguration of the Nordmann AT4 and can
differ from the opposite display.
As soon as the humidity controller or the humidistat requires humidity, power
is switched on for heating. The inlet valve opens (slight delay) and the steam
cylinder lls with water. As soon as the submerged electrodes heat the water
up the green LED lights up and after a few minutes (approx. 5–10 minutes,
depending on the conductivity of the water) steam is produced.
Note: If the Nordmann AT4 is operated with water of low conductivity it may
happen that the maximum steam capacity is not reached in the rst few
hours of operation. This is normal. As soon as the conductivity has reached
a sufcient level (due to the vaporisation process) the humidier will reach
the maximum steam capacity.
Menu
AT4 130kg/h 400V3
Standby
2011-08-31 12.00.00
Menu
AT4 130kg/h 400V3
Demand :28%
2011-08-31 12.00.00
AT4
STARTUP:
INIT MODULE
18
4.2 Notes on operation
4.2.1 Function of the display and operating elements
Display and control unit
Function: Conguration of the Nordmann AT4
Indication of operating parameters
Reset of maintenance counter
Performing diagnostic functions
red LED “Malfunction”
Function: The LED lights in case of a severe malfunction of
the unit (Error status). Further operation is not pos
sible any longer. The error message is shown in the
display, see chapter 7).
The LED ashes alternately with the green LED if
the external safety chain (e.g. ventilation interlock
has triggered) is open. As soon as the safety chain
is closed again, the indication disappears.
yellow LED “Maintenance”
Function: The LED lights if the steam cylinder must be re
placed.
green LED “Humidication”
Function: The LED lights if the unit produces steam.
The LED ashes alternately with the red LED if the
external safety chain (e.g. ventilation interlock has
triggered) is open. As soon as the safety chain is
closed again, the indication disappears.
Drain key
Function: Calls up the dialogue for the manual draining
Unit switch
Function: Switches the unit on and off. The switch is illumi
nated when the unit is on.
19
4.2.2 Remote operating and fault indication
If your unit is equipped with the optional operating and fault indication PCB
(option “RFI”) the following operating status are shown remotely:
Activated remote
indication relay
When? Display on unit
“Error” A error is present, further operation is
normally not possible any longer, the
heating voltage is interrupted.
Red LED lights and an
error message is shown
in the display.
“Service” The steam cylinder is spent and must be
replaced. The unit remains operational
for a certain time.
Yellow LED lights and
the service message is
shown in the display.
“Steam” Steam demand/Steam production Green LED lights and the
standard operating dis
play is shown.
“Unit on” Unit is switched on. Unit switch lights and the
standard operating dis
play is shown.
4.2.3 Notesontheoperationatambienttemperatures≤0°C
If during operation ambient temperatures ≤ 0°C must be expected (opera
tion of the Nordmann AT4 in a protective housing outside the building), the
standby draining function must be set to “Full” and the period of time in
standby operation after which an automatic cylinder draining takes place
must be set to 1 hour (see chapter 5.4.8.3).
4.2.4 Inspections during operation
During operation the Nordmann AT4 and the humidication system have to
be inspected weekly. On this occasion check the following:
• the water and steam installation for any leakage.
• the steam humidier and the other system components for correct xing
and any damage.
• the electric installation for any damage.
If the inspection reveals any irregularities (e.g. leakage, error indication)
or any damaged components take the Nordmann AT4 out of operation as
described in chapter 4.4. Then, contact your Nordmann representative.
20
4.3 Carrying out manual draining
Proceed as follows to drain the unit manually:
1. Briey press the drain key. The draining dialogue appears in the
display.
Note: With double units both cylinders can be drained separately in the
draining dialogue.
2. Press the <Start> key. The heating voltage is interrupted and the drain
pump starts. The yellow LED ashes.
To stop the drain cycle briey press the <Stop> key.
Note: by pressing the <Esc> key the display unit returns to the indication
level. A draining cycle in progress is interrupted automatically.
4.4 Taking the unit out of operation
In order to take the steam humidier out of operation, perform the following
steps:
1. If the unit has to be switched off because of a malfunction, please note
the error code of the actual error message shown in the display.
2. Close the shutoff valve in the water supply line.
3. Start manual draining (see chapter 4.3) and wait until the steam cylinder(s)
is/are empty.
Note: If the drain pump is defective, the steam cylinder(s) is/are to be
emptied manually via the manual draining hose.
4. Actuate the unit switch.
5. Disconnect steam humidier from the mains: Switch off all service
switches to mains supplies (heating and control voltage) and secure
switches in “off” position against accidentally being switched on, or
clearly mark the switches.
6. If ambient temperatures ≤ 0°C must be expected when the unit is out
of operation (operation of the Nordmann AT4 in a protective housing
outside the building): drain the water supply pipe and the water lter
(lter valve).
WARNING! Danger of burning!
If steam was produced just before the unit is taken out of operation, wait
before opening the unit and let the steam cylinder cool down to prevent
danger of burning.
Start
Manual Drain
Press START or STOP
Cyl.A Cyl.BCyl.B
StartEsc
21
5 Working with the unit control
Note: if you are working with the optional remote terminal read chapter
5.7 “Working with the remote terminal” rst. The operation of the remote
terminal deviates in some points from the operation at the humidier and
some adjustments are blocked via the remote terminal for safety reasons.
5.1 Factory settings
Ex works the unit control is set to the following standard settings:
Designation See chapter Parameter Factory setting
Dialogue language 5.4.2 Language country specic
Controller settings 5.4.3
Signal source SignalSource Analog
Control type Hum.Control Extern
Control signal Controlsign. 0-10V
Supply air limitation Lim. Control Off
Cylinder type 5.4.4 Cylinder unit specic
SC system 5.4.5
Status SC pump SC-Pump On
Operating time of the SC pump per hour On-Time unit specic
Capacity limitation 5.4.6
Set capacity limitation Power Limit 100 %
Time control capacity limitation Timer Off
Timer controlled operation of the humidier 5.4.7
Time control operation Timer Off
Water management 5.4.8
Water conductivity Conductivity >125 µS/cm
Drain factor Drain Factor 1.0
Operating behaviour in idle mode Idle Mode IdleOnly
Status forced draining function Force Drain On
Time delay forced draining Force Delay 72 hours
Date 5.4.9 Date to be set on site
Time of day 5.4.10 Time to be set on site
Display contrast 5.4.11 Contrast 50
22
Menu
AT4 130kg/h 400V3
Standby
2011-08-31 12.00.00
Menu
AT4 130kg/h 400V3
Power Limit :Set
Request A :0%
Request B :0%
∑ Steam :0kg/h
Menu
AT4 130kg/h 400V3
Drain Factor:1.0
Conductivity:>125µS
Idle Mode :Drain
Force Drain :O
Menu
AT4 130kg/h 400V3
Cylindertype:6564A
Operating Hours
Cylinder A :10h
Cylinder B :10h
Menu
AT4 130kg/h 400V3
Timer
On/O Timer :O
Power Limit :O
Setpoint :O
Menu
AT4 130kg/h 400V3
Software :1.00LA00
Controlsign.:0-10V
Limitsignal :0-10V
User Code
3562
Enter Number
Conrm with Set
Esc Set
User
Settings :Set
Modbus :Set
Maintenance :Set
Esc Set
Diagnostic
Unit Status :Set
Remote Test :Set
Modul-A Test:Set
ErrorHistory:Set
Modul-B Test:Set
Esc Set
5.2 Operating the control unit and menu overview
Operating
The operating and display unit is operated via the four keys located just
below the display. The 4 status elds at the bottom of the display show the
active keys the functions assigned to them.
actual key setting
keys
Menu overview
Indication level
Menu level
Menu User
– Resetting the maintenance counter
– Unit settings
– Modbus settings
Menu Engineering
The engineering level requires special knowledge and may only
be served by a Nordmann service technician.
Menu Diagnostic
– Interrogation of the malfunction list
– Interrogation of unit information
– Carrying out relay tests
– Carrying out unit tests (Module A and Module B)
Menu
AT4 130kg/h 400V3
Standby
2011-08-31 12.00.00
Main Menu
User :Set
Engineering :Set
Diagnostic :Set
Setpoint :50%rH
Esc Set
Main Menu
User :Set
Engineering :Set
Diagnostic :Set
Setpoint :50%rH
Esc Set
Main Menu
User :Set
Engineering :Set
Diagnostic :Set
Setpoint :50%rH
Esc Set
Hauptmenü
User :Set
Engineering :Set
Diagnostic :Set
Setpoint :50%rH
Esc Set
Modifying humidity setpoint
Note: this menu item appears only, if the internal P/PI controller is activated and the
humidity setpoint timer is deactivated!
23
5.3 Interrogation of the operating information in the indication level
In the normal operating mode the operating and display unit is in the indi
cation level. The indication level forms a loop that includes several pages
holding operating information which can be accessed with the arrow keys.
The various displays of the indication level are shown below.
Info page 1: Standard operating display
The appearance of the standard operating display depends on the actual operating status and the
conguration of the Nordmann AT4. The following display are possible.
Menu
AT4 130kg/h 400V3
Demand :50%
Limiter :80%
2011-08-31 12.00.00
Standard operating display with control via the external controller
– Standby (no humidity demand) or Demand % (humidity demand
present)
– Set supply air limitation in % *
* this parameter appears only if external supply air limitation is activated
Menu
AT4 130kg/h 400V3
Act.Humidity:32%rH
Setpoint :50%rH
Lim.Humidity:60%
Lim.Range :70-90%
Standard operating display with control via the internal controller
– Actual humidity in %rh
– Set nominal humidity %rh
– Set supply air limitation in % **
– Set range for supply air limitation in % **
** these parameters appear only if internal supply air limitation is activated
Info page 2: Performance information
Menu
AT4 130kg/h 400V3
Power Limit :Set
Request A :0%
Request B :0%
∑ Steam :0kg/h
– Set power limitation in % of maximum capacity
– Actual humidity demand unit A in %rh
– Actual humidity demand unit B in %rh (if present)
– Actual steam capacity of the unit in kg/h
Info page 3: Steam cylinder type and operating hours
Menu
AT4 130kg/h 400V3
Cylindertype:6564A
Operating hours
Cylinder A :10h
Cylinder B :10h
– Steam cylinder type
– Operating hours of the steam cylinder A since the last reset.
– Operating hours of the steam cylinder B since the last reset.
Info page 4: Settings
Menu
AT4 130kg/h 400V3
Software :1.00LA00
Controlsign.:0-10V
Limitsignal :0-10V
– Software version (1.00)/language version (LA00)
– Set control signal range (signal Y)
– Set control signal range for the supply air limitation (signal Z). Appears
only if supply air limitation is activated.
Info page 5: Drain settings
Menu
AT4 130kg/h 400V3
Drain Factor:1.0
Conductivity:>125µS
Idle Mode :Drain
Force Drain :O
– Set drain factor
– Conductivity of the water
– Set draining type in standby operation
– Actual status of forced draining function
Info Page 6: Timer settings
Menu
AT4 130kg/h 400V3
Timer
On/O Timer :O
Power Limit :O
Setpoint :O
– Actual status of On/Off timer
– Actual status of power limit timer
– Actual status of humidity setpoint timer (appears only if internal P/PI con
troller is activated)
24
5.4 Unit settings
5.4.1 Launching the unit settings menu
Select the unit settings menu:
Path: Main menu > User > Password entry: 3562 > Settings
Press the < > and < > keys in order to select the individual settings or settings submenus. Detailed
information on the different settings are found in the following chapters.
5.4.2 Selecting the dialogue language
Select “Language” in the unit settings menu, then press the <Set> key.
In the upcoming modication dialogue select the desired dialogue language. After conrmation, the unit
automatically switches to the selected dialogue language.
Factory setting: country specic
Options: diverse languages
5.4.3 Control settings
Select “Controls” in the unit settings menu, then press the <Set> key.
The display with control settings appears. The settings available depend on the selected signal source,
the regulation mode and the modulation mode. The display above shows the maximum number of set
tings available. Please refer to the following chapters for further information on the individual control
settings.
User Code
3562
Enter Number
Conrm with Set
Esc Set
Main Menu
Engineering :Set
Diagnostic :Set
User :Set
Esc Set
User
Settings :Set
Modbus :Set
Maintenance :Set
Esc Set
Time :12:00
Contrast :15
Date :11-08-31
Water Manag.:Set
On/O Timer :Set
Settings
Controls :Set
Cylinder :6564
SC-System :Set
Language :English
Power Limit :Set
Esc Set
Menu
AT4 130kg/h 400V3
Standby
2011-08-31 12.00.00
Settings
Controls :Set
Cylinder :6564
SC-System :Set
Language :English
Power Limit :Set
Esc Set
Limit Max :90%rH
Limit Min :70%rH
Limitsignal :0-10V
Lim. Control:On
Integr.-Time:8min
Controls
Hum.Control :Int.(PI)
Controlsign.:0-10V
Setpoint :Set
SignalSource:Analog
P-Band :18%rH
Esc Set
Language
English
German
French
English
Italian
Esc Set
Settings
Controls :Set
Cylinder :6564
SC-System :Set
Language :English
Power Limit :Set
Esc Set
25
5.4.3.1 Selecting the signal source
Select “SignalSource” in the control settings menu, then press the <Set> key.
In the upcoming modication dialogue select the desired signal source.
Factory setting: Analog
Options: Analog (internal or external controller), Modbus
5.4.3.2 Selecting the regulation mode
Select “Hum.Control” in the control settings menu, then press the <Set> key.
In the upcoming modication dialogue select the desired regulation mode.
Factory setting: External
Options: External (external continuous controller)
24VOn/Off (external On/Off humidistat)
Int. (P) (Internal P controller)
Int. (PI) (Internal PI controller)
5.4.3.3 Selecting the control signal
Note: This setting is available only if the signal source is set to “Analog” and the control type is set to
“External”, “Int. (P)” or “Int. (PI)”.
Select “Controlsign.” in the control settings menu, then press the <Set> key.
In the upcoming modication dialogue select the desired control signal.
Factory setting: 0–10V
Options: 0–5VPoti, 1–5V, 0–10V, 2–10V, 0–16V, 3.2–16V, 0–20mA, 4–20mA
Settings
Controls :Set
Cylinder :6564
SC-System :Set
Language :English
Power Limit :Set
Esc Set
Controls
Hum.Control :Int.(PI)
Controlsign.:0-10V
Setpoint :Set
SignalSource:Analog
P-Band :18%rH
Esc Set
Settings
Controls :Set
Cylinder :6564
SC-System :Set
Language :English
Power Limit :Set
Esc Set
Controls
Hum.Control :Int.(PI)
Controlsign.:0-10V
Setpoint :Set
SignalSource:Analog
P-Band :18%rH
Esc Set
SignalSource
Analog
Modbus
Analog
Esc Set
Hum.Control
External
24VOnO
Int.(P)
External
Int.(PI)
Esc Set
Settings
Controls :Set
Cylinder :6564
SC-System :Set
Language :English
Power Limit :Set
Esc Set
Controls
Hum.Control :Int.(PI)
Controlsign.:0-10V
Setpoint :Set
SignalSource:Analog
P-Band :18%rH
Esc Set
4-20mA
0-20mA
3.2-16V
0-16V
Controlsign.
0-5VPoti
1-5V
0-10V
0-10V
2-10V
Esc Set
26
5.4.3.4 Conguringhumiditysetpoint
Note: This menu item is available only if the internal P or PI controller is activated.
With the parameters in the “Setpoint” submenu you determine whether the Nordmann RC4/DC4 is to
be controlled with a x humidity setpoint (factory setting) or whether it is to be operated timer controlled
with different humidity setpoints.
– Control with x humidity setpoint:
Select “Setpoint” in the control settings menu, then press the <Set> key.
Let the timer deactivated (Off) or deactivate the timer if necessary. Select “Setpoint”, then press the
<Set> key. In the upcoming modication dialogue set the desired humidity setpoint value (Factory
setting: 50 %rh, Setting range: 15...95 %rh).
Note: If the unit is congured to be controlled with a x humidity setpoint, the humidity setpoint can
be modied also directly in the main menu.
– Timer controlled with different humidity setpoints:
Select “Setpoint” in the control settings menu, then press the <Set> key.
Select “Timer”, then press the <Set> key. In the upcoming modication dialogue activate the timer
function and conrm the setting with the <Set> key.
Settings
Controls :Set
Cylinder :6564
SC-System :Set
Language :English
Power Limit :Set
Esc Set
Controls
Controlsign.:0-10V
Setpoint :Set
P-Band :18%rH
SignalSource:Analog
Integr.-Time:8min
Esc Set
Setpoint
Setpoint :50%rH
Timer :O
Esc Set
Setpoint
Setpoint :50%rH
Timer :O
Esc Set
Setpoint
50 %rH
50 %rH
Esc Set
Settings
Controls :Set
Cylinder :6564
SC-System :Set
Language :English
Power Limit :Set
Esc Set
Controls
Controlsign.:0-10V
Setpoint :Set
P-Band :18%rH
SignalSource:Analog
Integr.-Time:8min
Esc Set
Setpoint
Setpoint :50%rH
Timer :O
Esc Set
Setpoint
Event 1 :06:00
Event 2 :18:00
Event 3 :--:--
Timer :On
Event 4 :--:--
Esc Set
Setpoint
Event 1 :06:00
Event 2 :18:00
Event 3 :--:--
Timer :On
Event 4 :--:--
Esc Set
Event 2
Time :18:00
Setpoint :50%rH
Weekday :Mo-Fr
Esc Set
Event 2
Time :18:00
Setpoint :50%rH
Weekday :Mo-Fr
Esc Set
Event 2
Time :18:00
Setpoint :50%rH
Weekday :Mo-Fr
Esc Set
Timer
O
On
On
Esc Set
Weekday
O
Mo-Fr
Mo-Sa
Mo-Fr
Mo-Su
Esc Set
Setpoint
50 %rH
50 %rH
Esc Set
Time
18:00
18:00
Esc Set
27
If the timer is activated, up to eight switching points (events 1 8) with different humidity setpoints
can be dened. Each switching point is dened by a weekday or weekday range, the switching point
and the humidity setpoint.
Conguration notes:
– the settings of an event remain active up to the next event.
– the software does not check the plausibility of the timer settings. Therefore, make sure your
settings make sense.
– the On/Off timer (see chapter 5.4.7) overrides the humidity setpoint timer.
5.4.3.6 Setting the proportional range for the internal P/PI controller
Note: This menu item is available only if the internal P or PI controller is activated.
Select “P-Band” in the control settings menu, then press the <Set> key.
In the upcoming modication dialogue set the proportional range in %rh for the internal P/PI controller.
Factory setting: 18 %rh
Setting range: 6...65 %rh
5.4.3.7 Setting the integral time for the internal PI controller
Note: This setting is available only if the internal PI controller is activated.
Select “Integr.-Time” in the control settings menu, then press the <Set> key.
In the upcoming modication dialogue set the integral time in minutes for the internal PI controller.
Factory setting: 8 minutes
Setting range: 1...60 minutes
5.4.3.8 Activating/Deactivating the supply air limitation
Note: This setting is available only if the control type is set to “External”, “Int. (P)” or “Int. (PI)”.
Select “Lim. Control” in the control settings menu, then press the <Set> key.
In the upcoming modication dialogue activate or deactivate the supply air limitation (Signal Z).
Factory setting: Off
Options: On, Off
Settings
Controls :Set
Cylinder :6564
SC-System :Set
Language :English
Power Limit :Set
Esc Set
Controls
Setpoint :Set
P-Band :18%rH
Integr.-Time:8min
Controlsign.:0-10V
Lim. Control:O
Esc Set
P-Band
18 %rH
18 %rH
Esc Set
Settings
Controls :Set
Cylinder :6564
SC-System :Set
Language :English
Power Limit :Set
Esc Set
Controls
Setpoint :Set
P-Band :18%rH
Integr.-Time:8min
Controlsign.:0-10V
Lim. Control:O
Esc Set
Integr.-Time
8 min
8 min
Esc Set
Settings
Controls :Set
Cylinder :6564
SC-System :Set
Language :English
Power Limit :Set
Esc Set
Controls
Integr.-Time:8min
Lim. Control:On
Limitsignal :0-10V
P-Band :18%rH
Limit Min :70%rH
Esc Set
Lim. Control
O
On
On
Esc Set
28
5.4.3.9 Selecting the supply air limitation signal
Note: This setting is available only if the external controller or the internal P or PI controller and the
supply air limitation are activated.
Select “Limitsignal” in the control settings menu, then press the <Set> key.
In the upcoming modication dialogue select the desired supply air limitation signal.
Factory setting: 0–10V
Options: 0–5V, 1–5V, 0–10V, 2–10V, 0–16V, 3.2–16V, 0–20mA, 4–20mA
5.4.3.10 Settingthelowerlimitvalueforthesupplyairlimitation
Note: This setting is available only if the external controller or the internal P or PI controller and the
supply air limitation are activated.
Select “Limit Min” in the control settings menu, then press the <Set> key.
In the upcoming modication dialogue set the lower limit value in %rH for the supply air limitation.
Factory setting: 70 %rH
Options: 15 ... 95 %rH
5.4.3.11 Setting the upper limit value for the supply air limitation
Note: This setting is available only if the external controller or the internal P or PI controller and the
supply air limitation are activated.
Select “Limit Max” in the control settings menu, then press the <Set> key.
In the upcoming modication dialogue set the upper limit value in %rH for the supply air limitation.
Factory setting: 90 %rH
Setting range: 15 ... 95 %rH
Settings
Controls :Set
Cylinder :6564
SC-System :Set
Language :English
Power Limit :Set
Esc Set
Controls
Lim. Control:On
Limitsignal :0-10V
Limit Min :70%rH
Integr.-Time:8min
Limit Max :90%rH
Esc Set
Controls
Lim. Control:On
Limitsignal :0-10V
Limit Min :70%rH
Integr.-Time:8min
Limit Max :90%rH
Esc Set
Settings
Controls :Set
Cylinder :6564
SC-System :Set
Language :English
Power Limit :Set
Esc Set
4-20mA
0-20mA
3.2-16V
0-16V
Limitsignal
0-5VPoti
1-5V
0-10V
0-10V
2-10V
Esc Set
Settings
Controls :Set
Cylinder :6564
SC-System :Set
Language :English
Power Limit :Set
Esc Set
Controls
Lim. Control:On
Limitsignal :0-10V
Limit Min :70%rH
Integr.-Time:8min
Limit Max :90%rH
Esc Set
Limit.Min
70 %rH
70 %rH
Esc Set
Limit Max
90 %rH
90 %rH
Esc Set
29
5.4.4 Selecting the cylinder type
Note: this function is not available via the optional remote terminal.
Select “Cylinder” in the settings menu, then press the <Set> key.
In the upcoming modication dialogue select the steam cylinder type installed in the unit (see type plate
on the steam cylinder).
Factory setting: according to the installed cylinder
Options: 522, 524, 532, 534, 822, 824, 832, 834, 1532, 1534, 2362, 2364, 3262, 3264,
4564, 6564
5.4.5 ConguringtheSCsystem
Select “SC-System” in the settings menu, then press the <Set> key.
The settings parameter for the lime management system appear. Detailed information on the different
settings are found in the following chapters.
5.4.5.1 Activating/deactivating the SC system
Select “SC-Pump” in the SC system settings menu, then press the <Set> key.
In the upcoming modication dialogue activate or deactivate the SC system.
Factory setting: Off
Options: On, Off
Settings
Controls :Set
Cylinder :6564
SC-System :Set
Language :English
Power Limit :Set
Esc Set
SC-System
On-Time :20min
SC-Pump :On
Esc Set
SC-System
On-Time :20min
SC-Pump :On
Esc Set
Settings
Cylinder :6564
SC-System :Set
Power Limit :Set
Controls :Set
On/O Timer :Set
Esc Set
Cylinder
3262
3264
4564
6564
6564
Esc Set
SC-Pump
O
On
On
Esc Set
Settings
Cylinder :6564
SC-System :Set
Power Limit :Set
Controls :Set
On/O Timer :Set
Esc Set
30
Settings
SC-System :Set
Power Limit :Set
On/O Timer :Set
Cylinder :6564
Water Manag.:Set
Esc Set
Power Limit
Power Limit :100%
Timer :O
Esc Set
Power Limit
Power Limit :100%
Timer :O
Esc Set
Power Limit
100 %
100 %
Esc Set
5.4.5.2 Setting the operation time of the SC-Pump
Select “On-Time” in the SCSystem settings menu, then press the <Set> key.
In the upcoming modication dialogue set the operating time of the SCPump per hour in minutes.
Factory setting: 20 minutes
Setting range: 20 ... 60 minutes
5.4.6 Conguringthecapacitylimitation
With the parameters in the “Power Limit” submenu you determine whether the Nordmann AT4 is to be
operated with a x capacity limitation (factory setting) or whether it is to be operated with a timer con
trolled capacity limitation.
– Operation with x capacity limitation:
Select “Power Limit” in the settings menu, then press the <Set> key. Let the timer deactivated (Off)
or deactivate the timer if necessary.
Select “Power Limit”, then press the <Set> key. In the upcoming modication dialogue set the value
for the x capacity limitation in % of the maximum capacity.
Factory setting: 100 %
Setting range: 30...100 %
SC-System
On-Time :20min
SC-Pumpe :On
Esc Set
Settings
Cylinder :6564
SC-System :Set
Power Limit :Set
Controls :Set
On/O Timer :Set
Esc Set
On-Time
20 min
20 min
Esc Set
31
– Operation with timer controlled capacity limitation:
Select “Power Limit” in the settings menu, then press the <Set> key.
Select “Timer”, then press the <Set> key. In the upcoming modication dialogue activate the timer
function and conrm the setting with the <Set> key.
If the timer is activated, up to eight switching points (events 1 8) with different capacity limits can
be dened. Each switching point is dened by a weekday or weekday range, the switching point
and the capacity limitation in % of the maximum capacity.
Conguration notes:
– the settings of an event remain active up to the next event.
– the software does not check the plausibility of the timer settings. Therefore, make sure your
settings make sense.
– the On/Off timer (see chapter 5.4.7) overrides the capacity limit timer.
Settings
SC-System :Set
Power Limit :Set
On/O Timer :Set
Cylinder :6564
Water Manag.:Set
Esc Set
Power Limit
Power Limit :50%rH
Timer :O
Esc Set
Power Limit
Event 1 :06:00
Event 2 :18:00
Event 3 :--:--
Timer :On
Event 4 :--:--
Esc Set
Power Limit
Event 1 :06:00
Event 2 :18:00
Event 3 :--:--
Timer :On
Event 4 :--:--
Esc Set
Event 2
Time :18:00
Power Limit :100%
Weekday :Mo-Fr
Esc Set
Event 2
Time :18:00
Power Limit :100%
Weekday :Mo-Fr
Esc Set
Event 2
Time :18:00
Power Limit :100%
Weekday :Mo-Fr
Esc Set
Timer
O
On
On
Esc Set
Weekday
O
Mo-Fr
Mo-Sa
Mo-Fr
Mo-Su
Esc Set
Power Limit
100 %
100 %
Esc Set
Time
18:00
18:00
Esc Set
32
5.4.7 ConguringtheOn/Offtimer
With the parameters in the “On/Off Timer” submenu you determine whether or not (factory setting) the
Nordmann AT4 is to be switched on and off timer controlled.
– Deactivate On/Off timer:
Select “On/Off Timer” in the settings menu, then press the <Set> key. Let the timer deactivated
(Off) or deactivate the timer if necessary.
– Activate and congure On/Off timer:
Select “On/Off Timer” in the settings menu, then press the <Set> key. Select “Timer”, then press
the <Set> key. In the upcoming modication dialogue activate the timer function and conrm the
setting with the <Set> key.
If the timer is activated, up to eight switching points (events 1 8) with different On/Off events can
be dened. Each switching point is dened by a weekday or weekday range, the switching point
and the operating mode.
Conguration notes:
– the settings of an event remain active up to the next event.
– the software does not check the plausibility of the timer settings. Therefore, make sure your
settings make sense.
– the On/Off timer overrides all other timers.
On/O Timer
Timer :O
Esc Set
Settings
Power Limit :Set
On/O Timer :Set
Water Manag.:Set
SC-System :Set
Date :11-08-31
Esc Set
Timer
O
On
O
Esc Set
Settings
Power Limit :Set
On/O Timer :Set
Water Manag.:Set
SC-System :Set
Date :11-08-31
Esc Set
On/O Timer
Timer :O
Esc Set
On/O Timer
Event 1 :06:00
Event 2 :18:00
Event 3 :--:--
Timer :On
Event 4 :--:--
Esc Set
On/O Timer
Event 1 :06:00
Event 2 :18:00
Event 3 :--:--
Timer :On
Event 4 :--:--
Esc Set
Event 2
Time :18:00
Mode :O
Weekday :Mo-Fr
Esc Set
Event 2
Time :18:00
Mode :O
Weekday :Mo-Fr
Esc Set
Event 2
Time :18:00
Mode :O
Weekday :Mo-Fr
Esc Set
Timer
O
On
On
Esc Set
Mode
O
On
On
Esc Set
Weekday
O
Mo-Fr
Mo-Sa
Mo-Fr
Mo-Su
Esc Set
Time
18:00
18:00
Esc Set
33
5.4.8 Water management settings
Select “Water Manag.” in the settings menu, then press the <Set> key.
The water management settings appear. Press the < > and < > keys in order to select the individual
settings. Detailed information on the different settings are found in the following chapters.
5.4.8.1 Selecting the conductivity range of the supply water
Select “Conductivity” in the water management settings submenu, then press the <Set> key.
In the upcoming modication dialogue select the conductivity range of the supply water.
Factory setting: >125 μS/cm
Options: >125 μS/cm, <125 μS/cm
5.4.8.2 Setting the drain factor
Select “Drain Factor” in the water management settings submenu, then press the <Set> key.
In the upcoming modication dialogue set the drain factor in relation to the steam capacity.
Factory setting: 1.0
Setting range: 0.5...2.0
Settings
On/O Timer :Set
Water Manag.:Set
Date :11-08-31
Power Limit :Set
Time :12:00
Esc Set
Settings
On/O Timer :Set
Water Manag.:Set
Date :11-08-31
Power Limit :Set
Time :12:00
Esc Set
Settings
On/O Timer :Set
Water Manag.:Set
Date :11-08-31
Power Limit :Set
Time :12:00
Esc Set
Water Manag.
Drain Factor:1.0
Idle Operat.:Set
Force Drain :On
Conductivity:>125µS
Force Delay :72h
Esc Set
Water Manag.
Drain Factor:1.0
Idle Operat.:Set
Force Drain :On
Conductivity:>125µS
Force Delay :72h
Esc Set
Water Manag.
Drain Factor:1.0
Idle Operat.:Set
Force Drain :On
Conductivity:>125µS
Force Delay :72h
Esc Set
Conductivity
>125µS
<125µS
>125µS
Esc Set
Drain Factor
1.0
1.0
Esc Set
34
5.4.8.3 Setting the operating mode for standby operation
– Idle only operation
In this operating mode the cylinder is not emptied in standby operation.
Select “Idle Operat.” in the water management settings submenu, then press the <Set> key. In the
upcoming submenu select “Idle Mode”, then press the <Set> key.
In the upcoming modication dialogue set Idle Mode to “IdleOnly”, then press the <Set> key.
– Standby operation with partial or complete draining of the steam cylinder
In this operating mode the cylinder is partly or fully drained after a certain time in standby opera
tion.
Select “Idle Operat.” in the water management settings submenu, then press the <Set> key. In the
upcoming Idle operation submenu set the parameters for standby operation with partial or complete
draining of the steam cylinder.
Settings:
• “Idle Mode”: “Drain”
• “Drain Mode”: “Full” (complete draining of the cylinder) or “Partial” (cylinder is drained so
far that the water does not touch the electrodes any longer)
Important: with outdoor operation it is mandatory to set the drain mode
to “Full”.
Settings
On/O Timer :Set
Water Manag.:Set
Date :11-08-31
Power Limit :Set
Time :12:00
Esc Set
Water Manag.
Drain Factor:1.0
Idle Operat.:Set
Force Drain :On
Conductivity:>125µS
Force Delay :72h
Esc Set
Idle Operat.
Drain Mode :Full
Drain Delay :72h
Idle Mode :Drain
Esc Set
Idle Operat.
Idle Mode :IdleOnly
Esc Set
Idle Mode
IdleOnly
Drain
KeepWarm
IdleOnly
A.Freeze
Esc Set
Settings
On/O Timer :Set
Water Manag.:Set
Date :11-08-31
Power Limit :Set
Time :12:00
Esc Set
Water Manag.
Drain Factor:1.0
Idle Operat.:Set
Force Drain :On
Conductivity:>125µS
Force Delay :72h
Esc Set
Idle Operat.
Idle Mode :IdleOnly
Esc Set
Idle Operat.
Drain Mode :Full
Drain Delay :72h
Idle Mode :Drain
Esc Set
Idle Operat.
Drain Mode :Full
Drain Delay :72h
Idle Mode :Drain
Esc Set
Idle Operat.
Drain Mode :Full
Drain Delay :72h
Idle Mode :Drain
Esc Set
Idle Mode
IdleOnly
Drain
KeepWarm
Drain
A.Freeze
Esc Set
Drain Mode
Partial
Full
Full
Esc Set
Drain Delay
72 h
72 h
Esc Set
35
• “Drain Delay”: period of time in standby operation after which an automatic cylinder drain
ing (partial or complete) takes place.
Factory setting: 72 h
Setting range: 1...720 h
Important: with outdoor operation it is mandatory to set the period of
time in standby operation after which an automatic cylinder draining takes
place to 1 hour.
– Standby operation with keep warm function
In this operating mode the water in the cylinder is kept warm via the electrodes for a certain period
of time in standby operation. After the set period of time in standby operation has elapsed the heat
ing is switched off.
Note: the keep warm function works only, if the external safety chain is closed.
Select “Idle Operat.” in the water management settings submenu, then press the <Set> key. In
the upcoming Idle operation submenu set the parameters for standby operation with keep warm
function.
Settings:
• “Idle Mode”: “KeepWarm”
• “Heat Power”: heating power during the keep warm period
Factory setting: 150 W
Setting range: 100...500 W
• “MaxHeatTime”: max. keep warm period
Factory setting: 72 h
Setting range: 1...720 h
Settings
On/O Timer :Set
Water Manag.:Set
Date :11-08-31
Power Limit :Set
Time :12:00
Esc Set
Water Manag.
Drain Factor:1.0
Idle Operat.:Set
Force Drain :On
Conductivity:>125µS
Force Delay :72h
Esc Set
Idle Operat.
Idle Mode :IdleOnly
Esc Set
Idle Operat.
Heat Power :150W
MaxHeatTime :72h
Idle Mode :KeepWarm
Esc Set
Idle Operat.
Heat Power :150W
MaxHeatTime :72h
Idle Mode :KeepWarm
Esc Set
Idle Operat.
Heat Power :150W
MaxHeatTime :72h
Idle Mode :KeepWarm
Esc Set
Idle Mode
IdleOnly
Drain
KeepWarm
KeepWarm
A.Freeze
Esc Set
MaxHeatTime
72 h
72 h
Esc Set
Heat Power
150 W
150 W
Esc Set
36
– Standby operation with anti freeze function
In this operating mode the water in the cylinder is warmed up so far in standby operation that the
water in the cylinder cannot freeze.
Note: the keep warm function works only, if the external safety chain is closed. Therefore this func
tion may not be used for outdoor operation.
Select “Idle Operat.” in the water management settings submenu, then press the <Set> key. In
the upcoming Idle operation submenu set the parameters for standby operation with anti freeze
function.
Settings:
• “Idle Mode”: “A.Freeze”
• “Heat Power”: heating power for anti freeze function
Factory setting: 50 W
Setting range: 10...200 W
5.4.8.4 Activating/Deactivating the forced draining
Select “Force Drain” in the water management settings submenu, then press the <Set> key.
In the upcoming modication dialogue activate/deactivate the forced draining which takes place after a
certain time of operation (see following setting).
Note: The forced draining takes place also during steam production.
Factory setting: Off
Options: On (Forced draining activated)
Off (Forced draining deactivated)
Settings
On/O Timer :Set
Water Manag.:Set
Date :11-08-31
Power Limit :Set
Time :12:00
Esc Set
Water Manag.
Drain Factor:1.0
Idle Operat.:Set
Force Drain :On
Conductivity:>125µS
Force Delay :72h
Esc Set
Idle Operat.
Idle Mode :IdleOnly
Esc Set
Idle Operat.
Heat Power :50W
Idle Mode :A.Freeze
Esc Set
Idle Operat.
Heat Power :50W
Idle Mode :A.Freeze
Esc Set
Idle Mode
IdleOnly
Drain
KeepWarma
A.Freeze
A.Freeze
Esc Set
Heat Power
50 W
50 W
Esc Set
Settings
On/O Timer :Set
Water Manag.:Set
Date :11-08-31
Power Limit :Set
Time :12:00
Esc Set
Water Manag.
Drain Factor:1.0
Idle Operat.:Set
Force Drain :On
Conductivity:>125µS
Force Delay :72h
Esc Set
Force Drain
O
On
On
Esc Set
37
5.4.8.5 Setting the time of operation after which a forced draining takes place
Select “Force Delay” in the water management settings submenu, then press the <Set> key.
In the upcoming modication dialogue set the time of operation after which a forced draining takes
place.
Factory setting: 72 hours
Setting range: 1...720 hours
5.4.9 Setting the date
Select “Date” in the settings menu, then press the <Set> key.
In the upcoming modication dialogue set the actual date (format:“yyyy.mm.dd”).
5.4.10 Settingthetime
Select “Time” in the settings menu, then press the <Set> key.
In the upcoming modication dialogue set the actual time (format:“hh.mm”).
5.4.11 Setting the display contrast
Note: this function is not available via the optional remote terminal.
Select “Contrast” in the settings menu, then press the <Set> key.
In the upcoming modication dialogue set the desired value for the display contrast.
Factory setting: 50
Setting range: 25 (light) ...80 (dark)
Settings
On/O Timer :Set
Water Manag.:Set
Date :11-08-31
Power Limit :Set
Time :12:00
Esc Set
Settings
Water Manag.:Set
Date :11-08-31
Time :12:00
On/O Timer :Set
Contrast :50
Esc Set
Settings
Water Manag.:Set
Date :11-08-31
Time :12:00
On/O Timer :Set
Contrast :50
Esc Set
Settings
Water Manag.:Set
Date :11-08-31
Time :12:00
On/O Timer :Set
Contrast :50
Esc Set
Water Manag.
Drain Factor:1.0
Idle Operat.:Set
Force Drain :On
Conductivity:>125µS
Force Delay :72h
Esc Set
Force Delay
72 h
72 h
Esc Set
Time
12:00
12:00
Esc Set
Contrast
50
50
Esc Set
Date
2011-08-31
2011-08-31
Esc Set
38
5.5 Modbus settings
Select the Modbus menu:
Path: Main menu > User > Password entry: 3562 > Modbus
In the Modbus submenu you can set the parameters for Modbus networks or for the communication
with the optional remote terminal. Detailed information on the different settings are found in the follow
ing chapters.
5.5.1 Settings for Modbus networks
Select “Networking” in the Modbus submenu, then press the <Set> key. In the upcoming modication
dialogue adjust the settings for the Modbus network operation.
Settings:
• “Modbus Addr.”: Modbus address of the humidier
Factory setting: 1
Setting range: 1...247
• “Parity”: Parity bit for the data transmission
Factory setting: None1
Options: None1, None2, Odd, Even
Note: for Modbus network operation the baud rate is set to 9600 baud and the timeout is set to 5 sec
onds as standard.
User Code
3562
Enter Number
Conrm with Set
Esc Set
Main Menu
Engineering :Set
Diagnostic :Set
User :Set
Esc Set
User
Settings :Set
Modbus :Set
Maintenance :Set
Esc Set
Modbus
Remote :Set
Networking :Set
Esc Set
Menu
AT4 130kg/h 400V3
Standby
2011-08-31 12.00.00
Networking
Parity :None1
Modbus Addr.:1
Esc Set
Networking
Parity :None1
Modbus Addr.:1
Esc Set
Networking
Parity :None1
Modbus Addr.:1
Esc Set
Modbus Addr.
1
1
Esc Set
Modbus
Remote :Set
Networking :Set
Esc Set
Parity
None1
None2
Odd
None1
Even
Esc Set
39
5.5.2 Settings for the communication with the optional remote terminal
– Data upload
Note: This function is intended only for the service technician of your Nordmann representative.
– Settings for the communication with the optional remote terminal
Note: this function is not available via the optional remote terminal.
Select “Remote” in the Modbus submenu, then press the <Set> key. Then, adjust the settings for
communication with the optional remote terminal as follows.
Settings:
• “Settings”: Remote
• “Modbus Addr.”: Modbus address of the humidier
Factory setting: 1
Setting range: 1...247
• “Baudrate”: Baudrate for the data transmission
Factory setting: 9600
Options: 9600, 19200, 38400, 57600
Remote
Modbus Addr.:1
Baudrate :9600
Parity :None1
Settings :Remote
Esc Set
Remote
Settings :Upload
Esc Set
Modbus
Remote :Set
Networking :Set
Esc Set
Settings
Upload
Remote
Upload
Esc Set
Modbus
Remote :Set
Networking :Set
Esc Set
Baudrate
9600
19200
38400
9600
56800
Esc Set
Parity
None1
None2
Odd
None1
Even
Esc Set
Remote
Modbus Addr.:1
Baudrate :9600
Parity :None1
Settings :Remote
Esc Set
Remote
Modbus Addr.:1
Baudrate :9600
Parity :None1
Settings :Remote
Esc Set
Remote
Modbus Addr.:1
Baudrate :9600
Parity :None1
Settings :Remote
Esc Set
Remote
Modbus Addr.:1
Baudrate :9600
Parity :None1
Settings :Remote
Esc Set
Remote
Settings :Upload
Esc Set
Settings
Upload
Remote
Remote
Esc Set
Modbus Addr.
1
1
Esc Set
40
• “Parity”: Parity bit for the data transmission
Factory setting: None1
Options: None1, None2, Odd, Even
Note: for the communication with the optional remote terminal the timeout is set to 5 seconds as stand
ard.
5.6 Diagnostic functions
5.6.1 Interrogation of the error history
The error messages generated by the last 20 malfunctions that occurred are saved in the error history
list of the Nordmann AT4 and can be interrogated.
Select the error history list:
Path: Main menu > Diagnostic > ErrorHistory
The last error that occurred is shown with:
– running number of the error
– date and time of occurrence
– error code (Warning: W..., Error: E...)
– error message
– additional info text regarding the error
Press <
> and < > keys, in order to select further error messages in the list.
Press the <Esc> key several times to quit the error history list and to return to the standard operating
display.
Main Menu
Engineering :Set
Diagnostic :Set
User :Set
Esc Set
Diagnostic
Unit Status :Set
Remote Test :Set
Modul-A Test:Set
ErrorHistory:Set
Modul-B Test:Set
Esc Set
ErrorHistory
E23A No Current
Phase failure
GFCI activated
01/05 11-03-15 12:34
Water supply
Esc Set
ErrorHistory
E32A HumSensor broken
No sensor signal
humidity sensor def.
05/05 11-03-15 12:34
Esc Set
Menu
AT4 130kg/h 400V3
Standby
2011-08-31 12.00.00
41
5.6.2 Interrogation of unit information
Select the list with the unit information:
Path: Main menu > Diagnostic > Unit Status
Press <
> and < > keys, in order to select the unit information available in the list:
1 Total operating hours since the initial commissioning
2 Actual status of the maximum level sensor of steam cylinder A (and B)
3 Counter showing the number of times the maximum level in the steam cylinder A (and B) has been
reached
4 Actual status of the inlet valve module A (and B)
5 Actual status of the drain pump module A (and B)
6 Actual status of the main contactor module A (and B)
7 Actual status of the SC pump module A (and B)
8 Calculated average drain time in seconds module A (and B)
9 Current average request module A (and B)
10 Actual status of the remote indication relay “Steam”
11 Actual status of the remote indication relay “Service”
12 Actual status of the remote indication relay “Error”
13 Actual status of the remote indication relay “Unit on”
Press the <Esc> key several times to quit the unit information list and to return to the standard operat
ing display.
Main Menu
Engineering :Set
Diagnostic :Set
User :Set
Esc Set
Diagnostic
Unit Status :Set
Remote Test :Set
Modul-A Test:Set
ErrorHistory:Set
Modul-B Test:Set
Esc Set
Menu
AT4 130kg/h 400V3
Standby
2011-08-31 12.00.00
Unit Status
20h
Max. Level Sensor
A O B O
System Operating Hour
Esc Set
1
2
3
4
5
6
7
9
8
12
11
10
13
A 0 B 0
Inlet Valve
A On B On
Max. Level Counter
A O B O
Main Contactor
A On B On
Outlet Pump
A On B On
Average Drain Time
Remote Service
A 0.0s B 0.0s
O
SC-Pump
A 43% B 43%
O
Remote Steam
Remote Unit On
O
On
Average Request
Remote Error
42
5.6.3 Performing remote relay tests
Select the remote test:
Path: Main menu > Diagnostic > Remote Test
The list with the remote relay tests appears, the rst relay test (steam) is shown.
Press the < > and < > keys in order to select the further relay tests available and press the <Set> key
to activate/deactivate the corresponding relay for testing.
5.6.4 Performing Module tests
Note: this function is not available via the optional remote terminal.
Select the Module tests:
Path: Main menu > Diagnostic > Modul-A Test (Modul-B Test)
The list with the module tests appears, the rst test (Inlet Valve) is shown.
Press the < > and < > keys in order to select the further tests of the selected module and press the
<Set> key to activate/deactivate the corresponding component for testing.
Main Menu
Engineering :Set
Diagnostic :Set
User :Set
Esc Set
Main Menu
Engineering :Set
Diagnostic :Set
User :Set
Esc Set
Diagnostic
Unit Status :Set
Remote Test :Set
Modul-A Test:Set
ErrorHistory:Set
Modul-B Test:Set
Esc Set
Diagnostic
Unit Status :Set
Remote Test :Set
Modul-A Test:Set
ErrorHistory:Set
Modul-B Test:Set
Esc Set
Menu
AT4 130kg/h 400V3
Standby
2011-08-31 12.00.00
Menu
AT4 130kg/h 400V3
Standby
2011-08-31 12.00.00
Esc Set
Remote Test
Remote Steam
O
Esc Set
Modul-A Test
Inlet Valve
O
Remote Service
Outlet Pump
O
O
Remote Error
Main Contactor
O
O
Remote Unit On
O
SC-Pump
O
43
5.7 Working with the remote terminal
5.7.1 Menu overview remote terminal
Menu 1
AT4 130kg/h 400V3
Standby
2011-08-31 12.00.00
Menu 1
AT4 130kg/h 400V3
Standby
2011-08-31 12.00.00
Menu 2
AT4 130kg/h 400V3
Standby
2011-08-31 12.00.00
Menu Local
AT4 Terminal
Remote Units:8
Software :1.00LA00
Menu 1
AT4 130kg/h 400V3
Power Limit :100%
Request A :0%
Request B :0%
∑ Steam :0kg/h
Menu 1
AT4 130kg/h 400V3
Drain Factor:1.0
Conductivity:>125µS
Idle Mode :Drain
Force Drain :O
Menu 1
AT4 130kg/h 400V3
Cylindertype:6564A
Operating hours
Cylinder A :10h
Cylinder B :10h
Menu 1
AT4 130kg/h 400V3
Timer
On/O Timer :O
Power Limit :O
Setpoint :O
Menu 1
AT4 130kg/h 400V3
Software :1.00LA00
Controlsign.:0-10V
Limitsignal :0-10V
Humidier 2 to max. 8
Menu Local
Warning
W17 Unit Missing
Remote Units:2
Info Esc
Warning 17
Unit Missing
No connection
with humidier
Indication level remote terminal
Standard display Standard display with active malfunction
Main Menu
Remote Units:8
ErrorHistory:Set
HistoryReset:Set
Language :English
Baudrate :9600
Esc Set
•••
Main Menu
Engineering :Set
Diagnostic :Set
User :Set
Esc Set
Humidier 1
Indication level humidier 1
Menu level humidier 1
Note: Detailed information regarding the indication
and the menu level of the humidiers can be found
in chapter 5.
Menu level remote terminal
Menu remote terminal
Remote terminal settings (see chapter 5.7.2)
44
5.7.2 Remote terminal settings
5.7.2.1 Selecting the dialogue language
Select “Language” in the main menu, then press the <Set> key.
In the upcoming modication dialogue select the desired dialogue language. After conrmation, the unit
automatically switches to the selected dialogue language.
Factory setting: country specic
Options: divers languages
5.7.2.2 Settingthenumberofhumidiersconnectedtotheremoteterminal
Select “Remote Units” in the main menu, then press the <Set> key.
In the upcoming modication dialogue set the number of humidiers connected to the remote terminal.
Factory setting: 1
Setting range: 1...8
5.7.2.3 Interrogation of the error history of the remote terminal
The error messages generated by the last 20 malfunctions that occurred are saved in the error history
list of the remote terminal and can be interrogated.
Select “ErrorHistory” in the main menu, then press the <Set> key.
The last error that occurred is shown with:
– running number of the error
– date and time of occurrence
– error code (Warning: W..., Error: E...)
– error message
– additional info text regarding the error
Press <
> and < > keys, in order to select further error messages in the list.
Main Menu
Remote Units:8
ErrorHistory:Set
HistoryReset:Set
Language :English
Baudrate :9600
Esc Set
Remote Units
8
8
Esc Set
Main Menu
Remote Units:8
ErrorHistory:Set
HistoryReset:Set
Language :English
Baudrate :9600
Esc Set
Main Menu
Remote Units:8
ErrorHistory:Set
HistoryReset:Set
Language :English
Baudrate :9600
Esc Set
ErrorHistory
W17 Unit Missing
No connection
with humidier
01/05 15-03-15 16:34
Esc Set
ErrorHistory
W17 Unit Missing
No connection
with humidier
01/05 11-03-15 12:34
Esc Set
Language
English
German
French
English
Italian
Esc Set
45
Press the <Esc> key several times to quit the error history list and to return to the standard operating
display.
5.7.2.4 Resetting the error history list of the remote terminal
Select “HistoryReset” in the main menu, then press the <Set> key.
The reset dialogue appears in the display. Press the <Yes> key in order to reset the error history
list.
Note: By pressing the <No> key the reset procedure can be aborted. The remote terminal returns to
the main menu.
5.7.2.5 Setting the baudrate
Select “Baudrate” in the main menu, then press the <Set> key.
In the upcoming modication dialogue set the baudrate for the communication with the humidier con
trols.
Factory setting: 9600
Options: 9600, 19200, 38400, 57600
5.7.2.6 Setting the display contrast
Select “Contrast” in the main menu, then press the <Set> key.
In the upcoming modication dialogue set the desired value for the display contrast of the remote ter
minal.
Factory setting: 50
Setting range: 25 (light) ...80 (dark)
Historyreset
Are you sure?
No Yes
Main Menu
ErrorHistory:Set
HistoryReset:Set
Baudrate :9600
Remote Units:8
Contrast :50
Esc Set
Main Menu
ErrorHistory:Set
HistoryReset:Set
Baudrate :9600
Remote Units:8
Contrast :50
Esc Set
Main Menu
ErrorHistory:Set
HistoryReset:Set
Baudrate :9600
Remote Units:8
Contrast :50
Esc Set
Baudrate
9600
19200
38400
9600
56800
Esc Set
Contrast
50
50
Esc Set
46
6 Maintenance
6.1 Important notes on maintenance
Qualication of personnel
All maintenance work must be carried out only by well qualied and trained
personnel authorised by the owner. It is the owner’s responsibility to verify
proper qualication of the personnel.
General note
The instructions and details for maintenance work must be followed and
upheld.
Only the maintenance work described in this documentation may be car
ried out.
Only use original Nordmann spare parts to replace faulty parts.
Safety
Some maintenance work requires removal of the unit cover. Please note
the following:
DANGER! Danger of electric hazard!
You may get in touch with live parts when the unit is open. Touching live
parts may cause severe injury or even lethal violation.
Prevention: Before carrying out any maintenance work set the Nordmann
AT4 out of operation as described in chapter 4.4 (switch off the unit, dis
connect it from the mains and stop the water supply) and secure the unit
against inadvertent powerup.
CAUTION!
The electronic components inside the humidier are very sensitive to
electrostatic discharge.
Prevention: Before carrying out any maintenance work to the electrical
or electronic equipment of the humidier, appropriate measures must be
taken to protect the respective components against damage caused by
electrostatic discharge (ESD protection).
47
6.2 Maintenance list
To maintain operational safety the Nordmann AT4 steam humidier must be
maintained at regular intervals. This is differentiated between the first main-
tenance after approx. 500 operating hours (I), steam cylinder replace-
ment after the yellow LED lights (II) and annual maintenance (III).
Below you will nd a summary of the work to be carried out for each of the
three maintenance stages.
Components Interval Work to be done
I II III
Steam cylinder X Remove and replace.
Drain pump X Remove, disassemble and clean, replace if neces
sary.
Steam cylinder receptacle X Inspect, clean if necessary.
Inlet valve X Remove and clean lter insert, replace if necessary.
Drain cup X Remove and clean if necessary
Drain pipe and siphon X Inspect, clean if necessary (decalcify and rinse out).
Steam installation X X Inspect steam and condensate hoses for cracks and
to see that they are correctly attached, replace faulty
hoses.
Water installation X X Inspect water hoses in the unit for cracks and to see that
they are correctly attached, replace faulty hoses.
Check supply pipe is tight, make tight if necessary.
Clean water lter, if available.
Electrical installation X X Check all cables in the unit are rmly positioned and
examine status of insulation.
48
6.3 Removing and installing parts for maintenance
6.3.1 Removal and installation of the steam cylinder
1. Undo the screw xing the front panel to the unit using a screwdriver,
then remove the front panel.
2. Release the hose clamp on the steam hose using a screwdriver, then
detach the steam hose from the steam outlet connection of the steam
cylinder.
Units with steam hose connector with condensate trap (option CT...,
not shown): release the two hose clamps on the rubber sleeve using a
screwdriver, then detach the rubber sleeve from the connection in the
unit cover and from the steam outlet connection of the steam cylinder.
3. Remove all plugs from the electrodes and from the level sensor.
4. Loosen the screws of the steam cylinder xing device by a few turns,
then push the xing device upwards until it comes loose and remove it.
1 2
3 4
49
5. Carefully lift steam cylinder away from the cylinder receptacle, then
remove it to the front.
CAUTION!
Put steam cylinder down carefully to avoid damage to the lower con
nection piece!
6. Carefully pull the drain screen out of the drain outlet of the steam cyl
inder.
Note: this step must only be carried out if the drain screen is clogged (see
chapter 7.2.2 “Unit faults”) and the steam cylinder can still be used.
5 6
50
Installation of the steam cylinder follows the reverse sequence. Observe
the following:
– Before installing the steam cylinder in the unit, check the Oring of the
cylinder receptacle for damage and replace if necessary.
– Moisten the Oring of the cylinder receptacle with water (do not use
grease or oil), then insert steam cylinder into the socket and push it
down to the stop.
– Attach the electrode plugs and the level sensor plug to the respective
electrode and sensor connections in accordance with colour code (see
table below).
Steam cylinder type
522A
822A
532A / 534A
832A / 834A
1532A / 1534A
2362A / 2364A
3262A / 3264A
4564A / 6564A
Sensor
white
black
red
brown
black
red
brown
Sensor
white
brown
black
red
Sensor
white
blackbrown
Sensor
white
black
red
brown black
red
brown
– Fasten steam hose on the connector of the steam cylinder with hose
clamps.
CAUTION!
– A leaky steam hose can cause damage due to moisture inside the
unit.
– The outlet connector of the steam cylinder is made of plastic. Do
not overtighten the hose clamp on the steam connector of the
steam cylinder.
51
6.3.2 Removal and installation of the drain cup
1. Remove overow hose from the connector on the water cup.
2. Remove grounding cable from the grounding lance.
3. Release the hose clamp, then remove water drain hose from the con
nector on the water cup.
4. Undo the two screws xing the drain cup to the unit using a screwdriver,
then remove the drain cup downwards.
5. Undo the screw, then remove grounding lance.
Installation of the drain cup follows the reverse sequence.
Important: reattach grounding cable to grounding lance.
1
2
5
4
3
52
6.3.3 Removal and installation of the water cup and the water hoses
For removing the water cup and the water hoses the steam cylinder must
be removed rst (see chapter 6.3.1).
1. Release hose clamps, then disconnect all hoses from the corresponding
connectors and remove the hoses.
Note: The hoses connected to the water cup may also be removed to
gether with the water cup (see illustration) and then disconnected from
the connectors of the water cup outside the unit.
2. Carefully pull xing clip of the water cup to the front, then push water
cup down from the holding device and remove it to the front.
The installation of the water cup and the water hoses follows the reverse
sequence. Before xing the water hoses to the connector using the hose
clamps, align the hoses in a way that they are not twisted.
53
6.3.4 Removal and installation of the drain pump
For removing the drain pump the steam cylinder must be removed rst (see
chapter 6.3.1).
1. Detach electric cables (polarity of the cables must not be observed).
2. Release hose clamps and remove the hoses from the connectors.
3. Undo the two screws on the bottom of the housing with Phillips screw
driver, then remove drain pump.
4. Separate the electric motor from the pump body: release the lock on
the bayonet catch, then counterrotate the electric motor and the pump
body.
The assembly and the installation of the drain pump follows the reverse
sequence. Before assembling the pump, check Oring for damage and
replace if necessary. Then, place the Oring on the centering collar and
moisten the Oring with water.
2
2
3
1
4
54
6.3.5 Removal and installation of the inlet valve
For removing the inlet valve the steam cylinder must be removed rst (see
chapter 6.3.1).
1. Detach electric cables (polarity of the cables must not be observed).
2. Release hose clamp and remove the hose from the connector.
3. Unlock union nut of the water pipe and remove water pipe.
4. Undo the two screws on the bottom of the housing with Phillips screw
driver, then remove inlet valve.
5. Remove strainer insert with pointed pliers.
The installation of the inlet valve follows the reverse sequence. The union
nut of the water pipe must be tightened by hand only.
1
2
3
5
4
55
6.3.6 Removal and installation of the cylinder receptacle
For removing the cylinder receptacle the steam cylinder must be removed
rst (see chapter 6.3.1).
1. Release hose clamps and remove hoses from the connectors.
2. Pressin the locking ring on the end of the check valve, then remove
check valve together with the hose from the corresponding connector
on the cylinder receptacle.
3. Undo the screw xing cylinder receptacle to the bottom of the housing
with Phillips screwdriver. Then, turn cylinder receptacle counter clockwise
to the stop and remove cylinder receptacle upwards.
4. Remove Oring from the cylinder receptacle.
The installation of the cylinder receptacle follows the reverse sequence.
Before mounting the cylinder receptacle, check Oring for damage and
replace if necessary.
1
2
1
3
4
56
6.4 Notes on cleaning the unit components
Unit component What to clean and how to clean
Water hoses • Remove any limescale by slightly knocking on the tubes
using a rubber hammer. Then, rinse the tubes well with
hot tap water.
Inlet valve
strainer insert
• Use a brush (do not use a wire brush) to remove any
limescale inside the inlet valve and on the strainer.
• Wash inlet valve and strainer insert with a lukewarm
soap solution, then rinse well with tap water.
Let the inlet valve dry before reinstallation!
Drain pump
Oring
Pump wheel
• Use a brush to remove any limescale from the pump
housing and the pump wheel (do not use a wire
brush).
• Then, wipe pump wheel with a damp cloth. Wash the
pump housing with a lukewarm soap solution and rinse
well with tap water.
Let the drain pump dry before reinstallation!
Water cup • Remove any limescale from the water cup and its con
nectors using a brush (do not use a wire brush).
If the water cup is heavily calcied, place it in an 8%
formic acid solution (observe safety notes in chap-
ter 6.5), until the limescale comes off.
• Wash the water cup with a lukewarm soap solution and
rinse well with tap water.
57
Unit component What to clean and how to clean
Drain screen of the steam cylinder • Remove any limescale from the drain screen using a
brush (do not use a wire brush) and remove loose limes
cale inside the drain connector of the steam cylinder.
If the drain screen is heavily calcied, place it in an 8%
formic acid solution (observe safety notes in chap-
ter 6.5), until the limescale comes off.
• Wash the drain screen with a lukewarm soap solution
and rinse well with tap water.
Drain cup • Use a brush to remove any limescale from the drain
cup and the receptacle on the bottom side of the unit
(do not use a wire brush).
If the drain cup is heavily calcied, place it in an 8%
formic acid solution (observe safety notes in chap-
ter 6.5), until the limescale comes off.
• Wash the drain cup and the receptacle on the bottom
side of the unit with a lukewarm soap solution, rinse
the parts well with tap water.
Cylinder receptacle • Remove any limescale from the cylinder receptacle
and its connectors using a brush (do not use a wire
brush).
If the cylinder receptacle is heavily calcied, place it in
an 8% formic acid solution (observe safety notes in
chapter 6.5), until the limescale comes off.
• Wash the cylinder receptacle with a lukewarm soap
solution and rinse well with tap water.
Interior of the unit
(water side only)
Wipe the interior of the unit with a damp cloth without using
any cleaning agent.
CAUTION: Take care that the electrical connections and
the electronic components remain dry!
58
6.5 Notes on cleaning agents
Only use cleaning agents stated in the table above. The use of disinfect
ants is only permitted if they do not leave any toxic residues. In any case
the parts must be thoroughly rinsed with water after cleaning.
WARNING!
Formic acid is indeed harmless to the skin, but it attacks the mucous
membranes. Therefore prevent your eyes and respiratory tracts from
getting in touch with the acid and its vapours (wear goggles and work in
a well ventilated room or outside).
CAUTION!
Do not use any solvents, aromatized or halogenized hydrocarbons
or other aggressive substances as they may cause damage to the
components of the unit.
It is mandatory to observe and comply with the information and instructions
regarding cleaning agents. Observe in particular: all information relating
to the protection of personnel, environmental protection and restrictions
regarding usage.
6.6 Resetting the maintenance indication
After completing maintenance work, the maintenance indication (yellow LED lights) must be reset:
1. Select the maintenance menu:
Path: Main menu > User > Password: 3562 > Maintenance
2. Select “Cyl. A Reset” (or “Cyl. B Reset”), then press the <Set> key.
3. The reset dialogue appears in the display. Press the <Yes> key to reset the maintenance counter
or the maintenance indication respectively. The maintenance counter and the maintenance
indication are reset and the control unit is restarted.
Note: by pressing the <No> key the reset procedure can be aborted and the display and control
unit returns to the maintenance menu. To return to the standard operating display press the <Esc>
key several times.
User Code
3562
Enter Number
Conrm with Set
Esc Set
Main Menu
Engineering :Set
Diagnostic :Set
User :Set
Esc Set
User
Settings :Set
Modbus :Set
Maintenance :Set
Esc Set
Maintenance
Cyl. A Reset:Set
Cyl. B Reset:Set
HistoryReset:Set
Esc Set
Menu
AT4 130kg/h 400V3
Standby
2011-08-31 12.00.00
AT4
STARTUP:
INIT MODULE
Cyl. A Reset
Attention ! Reset
without cyl. Mainten.
is very dangerous!
Are you sure?
No Yes
59
7 Fault elimination
7.1 Fault indication
Malfunctions during operation are indicated by a corresponding Warning
or Error message in the display of the control unit:
– Warning messages
The control of the Nordmann AT4 checks whether there is a temporary
problem (e.g. water supply interrupted for a short time) or whether it
can resolve the problem by taking necessary measures. If the cause of
the malfunction disappears of its own accord or if the control can repair
the malfunction, the alarm message will automatically switch off. If the
cause of the malfunction does not disappear even after a longer period
of time, a error message is triggered.
– Error message (additionally to the error message the red LED lights)
Further operation is normally not possible any longer, the unit is blocked.
To eliminate the malfunction see chapter 7.1 and 7.3.
Note: After eliminating the malfunction the error message must be reset
(see chapter 7.4).
By pressing the <Info> key additional information can be displayed for each
warning and/or error message.
Note: if you want to see further information of an active warning or error
message of a humidier on the optional remote terminal, select “Excep
tion” in the diagnostic menu of the appropriate steam humidier (appears
only on the remote terminal), then press <Set> key:
Menu Info
Warning
W21 Cyl.Max.Level
Menu Info
Error
E33 Lim Sens broken
Esc
Error 33
Lim Sens broken
No sensor signal
humidity sensor def.
Main Menu
Engineering :Set
Diagnostic :Set
User :Set
Esc Set
Diagnostic
ErrorHistory:Set
Unit Status :Set
Remote Test :Set
Exception :Set
Modul-B Test:Set
Esc Set
Menu 1
AT4 130kg/h 400V3
Standby
2011-08-31 12.00.00
Esc
Error 33
Lim Sens broken
No sensor signal
humidity sensor def.
60
7.2 Malfunction lists
Important! Most operational malfunctions are not caused by faulty equipment
but rather by improper installation or disregarding of planning guidelines.
Therefore, a complete fault diagnosis always involves a thorough examina
tion of the entire system. Often, the steam hose connection has not been
properly executed, or the fault lies with the humidity control system.
7.2.1 System faults
Warning Error Cause Remedy
LED Display LED Display
CF card missing
(Test run possible)
CF card missing
–––
Warning
W1: CF-Card Missing
red
lights
Error
E1: CF-Card Missing
No CF card installed on the control board. Install CF card or start test run.
CF card is empty
––– ––– red
lights
Error
E2: CF-Card Empty
No data stored on the CF card. Install new CF card.
CF card is defective
––– ––– red
lights
Error
E3: CF-Card Invalid
Invalid data stored on the CF card. Install new CF card.
CF card is incompatible
––– ––– red
lights
Error
E4: CF-Card Incompat
The installed CF card is not compatible with
the hardware of the unit or with the basic
settings of the control electronics.
Install correct CF card. Let your Nord-
mann service technician adjust the basic
settings.
Module B missing
––– ––– red
lights
Error
E5: Module B missing
Module B not correctly connected or
defective.
Check module B and connecting cables
between module A and module B.
Wrong hardware settings
––– ––– red
lights
Error
E9: Illegal Settings
False test run parameters. Let your Nordmann service technician adjust
the test run parameters (heating voltage,
Cylinder-No.).
Hardware fault
––– ––– red
lights
Error
E10: Flash R/W Fault
Control board defective. Replace control board.
––– –––
Error
E11: Clock R/W Fault
Backup battery on control board
discharged.
Let have the backup battery be replaced
(see chapter 7.5).
On/Off timer active
–––
Warning
W12: Timer Disable
––– ––– The system is deactivated via the On/
Off-Timer.
None. If necessary adjust On/Off timer
settings.
Test Mode active
–––
Warning
W16: Test Mode Active
––– ––– Diagnostic mode active (Remote Test,
Module Test etc.)
Quit diagnostic mode.
Humidier missing
–––
Warning
W17: Unit Missing
––– ––– The optional remote terminal does not
have connection to one or more units.
Check connecting cable. Check/correctly set
Modbus settings (modbus address, interface
parameters).
61
7.2.2 Unit faults
Warning Error Cause Remedy
LED Display LED Display
External safety chain is open
red and
green
ash
Warning
W20: Safety Loop Open
––– ––– Ventilation interlock open. If applicable, check/turn on ventilation
system.
Air ow monitor triggered. Check ventilator/lter of the ventilation
system.
Safety humidistat triggered. Wait. If applicable, check safety humidistat
Max. lling level of
steam cylinder reached
Max. lling level of steam cylinder
reached but no heating current for
more than 30 minutes
–––
Warning
W21: Cyl.Max.Level
red
lights
Error
E21: Cyl.Max. & NoCurr
Water conductivity too low (after initial operation).
Wait until the mineral content of the cylinder
has increased
Water conductivity too low for the selected
steam cylinder type.
Select correct steam cylinder type.
Phase failure heating voltage. Check service switch in the mains supply
line and switch on if applicable. Check mains
fuse(s) and replace if applicable.
Permissible lling time exceeded
(20 minutes)
Permissible lling time exceeded
(more than 4 hours)
–––
Warning
W22: Max. Filltime
red
lights
Error
E22: Max. Filltime
Water supply obstructed/shut-off valve
closed/water pressure too low.
Inspect water supply (lter, water piping,
etc.), check/open shut-off valve, check water
pressure.
Inlet valve blocked or defective. Inspect strainer insert in the inlet valve, if
applicable clean strainer insert or replace
inlet valve.
Excessive back pressure in the steam line
(duct pressure too high, steam line too long or
kinked), causing water loss via lling cup.
Check duct pressure, inspect steam installa-
tion. If applicable install pressure compensa-
tion kit (see options).
Leakage in the water system. Inspect water system and seal if necessary.
No electrode current for more than
20 minutes
No electrode current for more than
4 hours
–––
Warning
W23: No Current
red
lights
Error
E23: No Current
Phase failure heating voltage. Inspect/turn on service switch of the mains
supply line. Inspect the fuses of the mains
supply, replace if necessary. Check/repalce
main contactor.
Water supply obstructed/shut-off valve
closed/water pressure too low.
Inspect water supply (lter, water piping,
etc.), check/open shut-off valve, check water
pressure.
Inlet valve blocked or defective. Inspect strainer insert of the inlet valve, if
applicable clean strainer insert or replace
inlet valve.
Excessive back pressure in the steam line
(duct pressure too high, steam line too long or
kinked), causing water loss via lling cup.
Check duct pressure, inspect steam installa-
tion. If applicable install pressure compensa-
tion kit (see options).
Leakage in the water system. Inspect water system and seal if necessary.
Electrode current in relation to the
steam demand too high
Electrode current in relation to the
steam demand too high
–––
Warning
W24: Over Current
red
lights
Error
E24: Over Current
Humidity demand has decreased too fast. Automatic adaptation of the operating
point.
Drain pump defective. Inspect drain pump, replace if necessary.
Drain in steam cylinder blocked. Replace steam cylinder.
Water conductivity too high for the selected
steam cylinder type.
Select correct steam cylinder type.
62
Warning Error Cause Remedy
LED Display LED Display
Max. admissible electrode
current exceeded
Max. admissible electrode
current exceeded
–––
Warning
W25: Excess Current
red
lights
Error
E25: Excess Current
Drain pump defective. Inspect drain pump, replace if necessary.
Drain in steam cylinder blocked. Replace the steam cylinder.
Water conductivity too high for the selected
steam cylinder type.
Select correct steam cylinder type.
Relay heating voltage jammed
––– ––– red
lights
Error
E26: Req.Off Current
Relay heating voltage jammed in activated
position.
Inspect relay, replace if necessary.
Foam detection Foam detection (4 automatic drain-
ings within 24 hours)
–––
Warning
W27: Foam
red
lights
Error
E27: Foam
Foaming in steam cylinder. Drain steam cylinder via drain key (sev-
eral times, if necessary). Check quality of
the supply water.
Steam cylinder needs service Service interval for
steam cylinder exceeded
yellow
lights
Warning
W28: Cyl. Maintenance
red and
yellow
ash
Error
E28: Cyl. Maintenance
Mineral deposits and/or electrodes spent. Replace steam cylinder.
Important: After replacement of the steam
cylinder, reset the maintenance counter
(see chapter 6.6).
Steam cylinder needs service Max. operating hours of the steam
cylinder reached
yellow
lights
Warning
W29: Cyl. Maintenance
red and
yellow
ash
Error
E29: Cyl. Maintenance
Maximum operating hours of the steam
cylinder reached.
Replace steam cylinder.
Important: After replacement of the steam
cylinder, reset the maintenance counter
(see chapter 6.6).
Humidity sensor signal (signal Y)
missing
Humidity sensor signal (signal Y)
missing for more than 1 minute
–––
Warning
W32: HumSensor broken
red
lights
Error
E32: HumSensor broken
No sensor signal present at signal input
(Signal Y).
Check humidity sensor (signal Y) , replace
if necessary. Inspect wiring.
Signal of humidity limitation sensor
(signal Z) missing
Signal of humidity limitation sensor
(signal Z) missing for more than 1
minute
–––
Warning
W33: Lim Sens broken
red
lights
Error
E33: Lim Sens broken
No sensor signal present at signal input
(signal Z).
Check humidity sensor (signal Z) , replace
if necessary. Inspect wiring.
Module A (B) locked via Modbus
–––
Warning
W34A: Module disable
––– Module A (B) locked because the corre-
sponding Modbus register is deactivated.
Activate the corresponding Modbus
register.
Modbus Timeout (5 s)
––– ––– red
lights
Error
E35A: Modbus Timeout
No actual demand or humidity signal
received via Modbus.
Send actual demand or humidity signal.
Standby mode of
steam cylinder active
Standby mode of
steam cylinder failed
–––
Warning
W36: Idle Mode active
red
lights
Error
W36: Idle Mode Failed
Automatic standby operation (Standby-
Drain, AntiFreeze, KeepWarm) of steam
cylinder active or failed.
Warning status: No measures must be taken.
Error status: Check water supply, heating
voltage supply, main contactor.
Forced draining of
steam cylinder active
–––
Warning
E37: Forced Drain
––– ––– Forced draining of steam cylinder active. No measures must be taken.
63
Warning Error Cause Remedy
LED Display LED Display
Safety chain instable
–––
Warning
W38: Safety Loop Inst
––– ––– Safety chain opens and closes in short
intervals.
Check/replace safety humidistat, ventilation
interlock and air ow monitor.
Control signal instable
–––
Warning
W39: Control Instable
––– ––– The signal at the control signal input
uctuates strongly in short intervals.
Check/replace humidity sensor or external
humidity controller.
Limit humidity signal instable
–––
Warning
W40: Limit Instable
––– ––– The signal at the limit signal input uctu-
ates strongly in short intervals.
Check/replace humidity sensor or external
humidity controller.
7.3 Resetting the error indication (red LED lights)
To reset the error indication:
Disconnect the steam air humidier from the mains. Wait approx. 5
seconds, then reconnect the unit to the mains.
Note: If the fault has not been eliminated, the error indication reappears
after a short while.
7.4 Notes on fault elimination
DANGER! Danger of electric hazard!
For the elimination of faults set the steam humidier out of operation as
described in chapter 4.4, separate the unit from the mains and secure
it against inadvertent power-up.
The elimination of faults must be carried out by qualied and well trained
professionals only.
Malfunctions relating to the electrical installation (e.g. replacement of the
backup battery, replacement of fuses) must be repaired by authorized per
sonnel or by your Nordmann representative’s service technician only.
Repair work and the replacement of faulty components must be carried out
by your Nordmann representative’s service technician only!
64
7.5 Replacing the backup battery on the control board
1. Set the Nordmann AT4 out of operation as described in chapter 4.4,
disconnect it from the mains and secure the unit against inadvertent power-up.
2. Undo the screw of the front cover of the control compartment, then
remove the front cover.
CAUTION!
The electronic components inside the humidier are very sensitive to
electrostatic discharge. Before carrying out the next step, appropriate
measures must be taken to protect the electronic components against
damage caused by electrostatic discharge (ESD protection).
3. Carefully liftoff the display and control unit from the housing frame,
swivel it 90° to the left, then x it to the unit frame again.
4. Undo the fastening screws of the control board, then carefully pulloff
the control board from the control unit assembly.
5. Replace the backup battery (CR2032, Lithium 3V).
6. Reassemble the unit in reverse order.
7. If necessary set date and time (see chapter 5.4.9 and 5.4.10).
WARNING!
Environmental hazard!
The old battery must be returned to an authorised collecting
point for correct disposal/recycling in accordance with local
regulations. In no case the old battery must be disposed of
in the domestic waste or into the environment.
65
8 Taking out of service/Disposal
8.1 Taking out of service
If the Nordmann AT4 must be replaced or if the humidication system is not
needed any more, proceed as follows:
1. Take the unit out of operation as described in chapter 4.4.
2. Have the unit (and all other system components, if necessary) unmounted
by a qualied service technician.
8.2 Disposal/Recycling
Components not used any more must not be disposed of in the domestic
waste. Please dispose of the unit or the individual components in accord
ance with local regulations at the authorised collecting point.
If you have any questions, please contact the responsible authority or your
local Nordmann representative.
Thank you for your contribution to environmental protection.
66
9 Productspecications
9.1 Technical data
Steam capacity in kg/h 5 8 15 23 32 45 46 64 65 90 130
Capacity range in kg/h 1...5 1.6...8 3...15 4,6...23 6,4...32 9...45 9,2...46 12,8...64 13...65 18...90 26...130
Nominal power in kW 3,8 6,0 11,3 17,3 24,0 33,8 2x 17,3 2x 24,0 48,8 2x 33,8 2x 48,8
Number of steam cylinder 1 1 1 1 1 1 2 2 1 2 2
Heating voltage 230V/1~/50..60Hz *
Unit model 522 822
Nominal current in A 16,3 26,1
Steam cylinder type ** 522A 822A
Heating voltage 400V/2~/50..60Hz *
Unit model 524 824
Nominal current in A 9,4 15,0
Steam cylinder type ** 524A 824A
Heating voltage 230V/3~/50..60Hz *
Unit model 532 832 1532 2362 3262 4662 6462
Nominal current in A 9,4 15,1 28,2 43,3 60,2 2x 43,3 2x 60,2
Steam cylinder type ** 532A 832A 1532A 2362A 3262A 2x 2362A 2x 3262A
Heating voltage 400V/3~/50..60Hz *
Unit model 534 834 1534 2364 3264 4564 6464 6564 9064 13064
Nominal current in A 5,4 8,7 16,2 24,9 34,6 48,7 2x 34,6 70,4 2x 48,7 2x 70,4
Steam cylinder type ** 534A 834A 1534A 2364A 3264A 4564A 2x 3264A 6564A 2x 4564A 2x 6564A
Control voltage 230 V/1~/50..60 Hz
Operating conditions
Admissible water pressure 1...10 bar
Water quality Untreated drinking water with a conductivity of 125...1250 µS/cm
Admissible water temperature 1...40 °C
Admissible ambient temperature 1...40 °C
Admissible ambient humidity max. 75 %rH
Admissible duct air pressure 0.8 kPa...1.5 kPa; overpressure kit (option) up to 10.0 kPa
Type of protection IP21
Conformity CE, VDE, GOST
Dimensions/Weights
Width in mm 388 388 468 468 563 563 966 966 563 966 966
Height in mm 575 575 620 620 640 640 640 640 640 640 640
Depth in mm 255 255 345 345 354 354 354 354 354 354 354
Net weight in kg 12 19 28 62 30 64
Operating weight in kg 17 29 65 116 67 116
Water supply connector G 3/4" (male thread)
Water drain connector ø 31 mm (outside diameter)
Steam connector 1xø 22 1xø 35 2x ø 35 4xø 35
Options
Cable gland 1xCG 2xCG 1xCG 2xCG
Overpressure set 1xOPS 2xOPS 1xOPS 2xOPS
Remote operating and fault indication 1xRFI
Steam hose connector with condensate trap 1xCT.. 2xCT.. 4xCT..
Internal control voltage supply 1xSCVI 1xMCVI 1xLCVI
@Link AT4 @Link AT4
Accessories
Filter valve 1x Z261
Nordmann AT4 Remote Terminal RP
Steam distribution pipe 1xDV41... 1xDV71... 2xDV71... 4xDV71...
Steam distribution system MultiPipe ––– System 1 System 2 System 4
Fan unit 1x
FAN4 NS
1x
FAN4 NM1xTurbo 321xTurbo 45
1x
Turbo 65
2x
Turbo 452xTurbo 65
Steam hose / meter 1xDS22 1xDS35 2xDS35 4xDS35
Condensate hose / meter KS10
EcoTherm insulation hose 1xECT22 1xECT60 2xECT60 4xECT60
Duct humidistat NHD
Room humidistat NHR
Humidity sensor for duct mounting NDC
Humidity sensor for room mounting NRC
* Other heating voltages on request
** Steam cylinder for water conductivity from 125 to1250 µS/cm
67
9.2 Wiring diagram Nordmann AT4
9.2.1 Wiring diagram Nordmann AT4 single units
A1 Continuous controller (active) or humidity sensor
A2 Controller (passive), set jumper on JP3-5V
A3 On/Off controller, set jumper on JP3-24V
A4 Limitation signal
BAT Backup battery (CR2032, Lithium 3V)
B1 Ventilation interlock
B2 Safety humidistat
B3 Airowmonitor
F1 Internalfuse“Powerboard”(6.3A,slowacting)
F3 Internalfuse“Powerboard”controlsignal
(315mA,slowacting)
F4 Internalfuse“Powerboard”
24VDCsupply(V+)(315mA,slowacting)
F5 External fuse heating voltage supply
F6 External fuse control voltage supply
H1 Remote operating and fault indication
J Short circuited, if no external monitoring devices are connected
J2 LinkUpsystem“Powerboard”
JP1 End resistor Remote Terminal **
JP3 Jumper control signal
JP4 Pull up resistor Remote Terminal **
JP5 PulldownresistorRemoteTerminal**
K External safety chain (230V/5A)
K1 Main contactor
M Fan unit
Q5 Externalserviceswitchheatingvoltagesupply
Q6 Externalserviceswitchcontrolvoltagesupply
XE1 Connection terminal heating voltage
XE2 Connection terminal safety chain
XE3 Connection terminal control voltage
XE4 Connection terminal control signal Y
X15 Connection terminal remote panel
Control board Powerboard
REMOTE
LINK UP
EXTERNAL CON.CPU BOARD
D+ D– GND 5V 24V
X15
J2
PEPESC2SC1NL1
X1
F1 6.3 AT
INLET DRAIN CONTA.
L'NL'N
X4
CONT. SIGN.
GNDINV+
X10
JP3
L'N
X3
24V 5V
5V
24V
SAFETY CHAIN
CONTACTORDRAININLETSC SYSTEM
LEVEL SENSOR
GND
SWITCH
L1FUNL1SWNSW
X2
SC
L'N
X16
S1S2
LEVEL SENS.
CURRENT SENSOR
X5
MAIN SUPPLYMODULE B
PEP1NP
X6
LIM. SIGN.
GNDIN
EXT. SUP.
5V GND 24V
X11
X14
F4 315mAT
F3 315mAT
J1
J4
1
Error Service Steam UnitOn
2 3 4 5 6 7 8 9 10
H1
AT4
ext.
from contactor to cylinder
M
L1 N
+ –
P / PI
+ –
P / PI
A1 A4
140Ω...10kΩ
A2
On/Off
A3
L1 L2 L3
Q5
K1
XE1
F5
L1 L2 L3
L1 L2 L3
400 V/3~/50..60 Hz
230 V/3~/50..60 Hz
Q5
F5
L1 N PE
PE
PE
230 V/1~/50..60 Hz
Q5
F5
L1 L2
400 V/2~/50..60 Hz
PE
GND
IN
V+
GND
IN
V+
IN
V+
PE
N
L1
SC2
SC1
JP3
24V 5V
Q6
230 V/1~/50..60 Hz
L1 N PE
F6
B3KB2
B1
J
∆p
max.
JP3
24V 5V
XE2XE3XE4
BAT
JP1
JP4
JP5
Unit 2Unit 3Last Unit
D+ D– GND 5V 24V
X15
D+ D– GND 5V 24V
X15
D+ D– GND 5V 24V
X15
JP1
JP4
JP5
JP1
JP4
JP5
JP1
JP4
JP5
Remote Terminal
D+ D– GND 5V 24V
X15
JP1
JP4
JP5
Jumper settings for operation with optional remote terminal **
Jumper Function Remote terminal Unit(s)
in between
Last unit in
the chain
JP1
120Ω end
resistor
X X
JP4
Pull up
resistor
X
JP5
Pull down
resistor
X
68
MODULE B
PEP1NP
X6
CPU BOARD
J3
X25
MAINSC SYSTEM DRAIN INLET
INLETDRAINSC
X24
L' N L' N L' N L' N
X27
MAIN
X23
LEVEL SENSOR
CURRENT SENSOR
S1S2
LEVEL SENS.
EXT. SUP.
5V GND 24V
X14
REMOTE
LINK UP
EXTERNAL CON.CPU BOARD
D+ D– GND 5V 24V
X15
J2
PEPESC2SC1NL1
X1
F1 6.3 AT
INLET DRAIN CONTA.
L'NL'N
X4
CONT. SIGN.
GNDINV+
X10
JP3
L'N
X3
24V 5V
5V
24V
SAFETY CHAIN
CONTACTORDRAININLETSC SYSTEM
LEVEL SENSOR
GND
SWITCH
L1FUNL1SWNSW
X2
SC
L'N
X16
S1S2
LEVEL SENS.
CURRENT SENSOR
X5
MAIN SUPPLYMODULE B
PEP1NP
X6
LIM. SIGN.
GNDIN
EXT. SUP.
5V GND 24V
X11
X14
F4 315mAT
F3 315mAT
JP1
JP4
JP5
J1
J4
M
L1 N
H1
1
Error Service Steam UnitOn
2 3 4 5 6 7 8 9 10
+ –
P / PI
+ –
P / PI
A1 A4
140Ω...10kΩ
A2
On/Off
A3
L1 L2 L3
Q5
K1
XE1
F5
L1 L2 L3
L1 L2 L3
400 V/3~/50..60 Hz
230 V/3~/50..60 Hz
Q5
F5
L1 N PE
PE
PE
230 V/1~/50..60 Hz
Q5
F5
L1 L2
400 V/2~/50..60 Hz
PE
L1 L2 L3
Q5
K1
Heating Module B
Heating Module A
XE1
F5
L1 L2 L3
L1 L2 L3
400 V/3~/50..60 Hz
230 V/3~/50..60 Hz
Q5
F5
L1 N PE
PE
PE
230 V/1~/50..60 Hz
Q5
F5
L1 L2
400 V/2~/50..60 Hz
AT4
ext.
GND
IN
V+
GND
IN
V+
IN
V+
PE
N
L1
SC2
SC1
JP3
24V 5V
Q6
230 V/1~/50..60 Hz
L1 N PE
F6
B3KB2
B1
J
∆p
max.
JP3
24V 5V
XE2XE3XE4
Unit 2Unit 3Last Unit
D+ D– GND 5V 24V
X15
D+ D– GND 5V 24V
X15
D+ D– GND 5V 24V
X15
JP1
JP4
JP5
JP1
JP4
JP5
JP1
JP4
JP5
BAT
Remote Terminal
D+ D– GND 5V 24V
X15
JP1
JP4
JP5
from contactor to cylinder
9.2.2 Wiring diagram Nordmann AT4 double units
A1 Continuous controller (active) or
humidity sensor
A2 Controller (passive), set jumper on JP3-5V
A3 On/Off controller, set jumper on JP3-24V
A4 Limitation signal
BAT Backup battery (CR2032, Lithium 3V)
B1 Ventilation interlock
B2 Safety humidistat
B3 Airowmonitor
F1 Internalfuse“Powerboard”
(6.3A,slowacting)
F3 Internalfuse“Powerboard”controlsignal
(315mA,slowacting)
F4 Internalfuse“Powerboard”
24VDCsupply(V+)(315mA,slowacting)
F5 External fuse heating voltage supply
F6 External fuse control voltage supply
H1 Remote operating and fault indication
J Short circuited, if no external monitoring
devices are connected
J2 LinkUpsystem“Powerboard”
JP1 End resistor Remote Terminal **
JP3 Jumper control signal
JP4 Pull up resistor Remote Terminal **
JP5 PulldownresistorRemoteTerminal**
K External safety chain (230V/5A)
K1 Main contactor
M Fan unit
Q5 Externalserviceswitchheating
voltage supply
Q6 Externalserviceswitchcontrol
voltage supply
XE1 Connection terminal heating voltage
XE2 Connection terminal safety chain
XE3 Connection terminal control voltage
XE4 Connection terminal control signal Y
X6 ConnectiontoextensionboardModuleB
X14 Voltage supply extension board
X15 Connection terminal remote panel
Extension board Module B Control board Powerboard
Jumper settings for operation with optional remote terminal **
Jumper Function Remote terminal Unit(s)
in between
Last unit in
the chain
JP1
120Ω end
resistor
X X
JP4
Pull up
resistor
X
JP5
Pull down
resistor
X
69
Notes
Notes
© Nordmann Engineering Ltd. 2011, Printed in Switzerland
Technical modifications reserved
NORDMANN
ENGINEERING
Reg.No. 40002-2
Manufacturer:
Nordmann Engineering Ltd.
Talstr. 35-37, P.O. Box, CH-3562 Pfäffikon (Switzerland)
Phone +41 55 416 66 06, Fax +41 55 416 62 46
www.nordmann-engineering.com, info@nordmann-engineering.com
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