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4

Limitation
The subject of these operating instructions is the steam humidifier Nordmann RC4/DC4 in 

its different versions

. 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, operation

servicing 

and 

trouble 

shooting

 of the steam humidifier Nordmann RC4/DC4 and is meant for 

well trained personnel 

being sufficiently qualified for their respective work

The operating instructions is supplemented by various separate items of documentation (spare parts 

list, manuals for accessories, etc.). Where necessary, appropriate cross-references are made to 

these publications in the operating instructions.

Introduction

We thank you for having purchased the 

steam humidifier Nordmann RC4/DC4

.

The steam humidifier Nordmann RC4/DC4 incorporates the latest technical ad van ces and meets all 

recognized safety standards. Nevertheless, improper use of the Nordmann RC4/DC4 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 humidifier Nordmann RC4/DC4, 

please observe and comply with all information and safety instructions contained in the present manual 

as well as the instructions given in the manuals for the components used in the humidification system.

If you have questions, which are not or insufficiently answered in this documentation, please contact 

your Nordmann supplier. They will be glad to assist you.

1.2 

Notes on the operating instructions

1.1 

To the very beginning

Summary of Contents for DC4

Page 1: ...OPERATING INSTRUCTIONS NORDMANN E N G I N E E R I N G 2549082 A EN 1703 Nordmann RC4 DC4 Electrode Humidifiers ...

Page 2: ......

Page 3: ...28 4 6 7 Water management settings 28 4 6 8 Setting the date 30 4 6 9 Setting the time 31 4 6 10 Configuring the display and the steam LED 31 4 7 Diagnostic functions 33 4 7 1 Interrogation of the malfunction list 33 4 7 2 Interrogation of unit information 34 4 7 3 Performing remote relay tests 35 4 7 4 Performing Module tests 35 5 Maintenance 36 5 1 Important notes on maintenance 36 5 2 Maintenan...

Page 4: ... references are made to these publications in the operating instructions 1 Introduction We thank you for having purchased the steam humidifier Nordmann RC4 DC4 The steam humidifier Nordmann RC4 DC4 incorporates the latest technical ad van ces and meets all recognized safety standards Nevertheless improper use of the Nordmann RC4 DC4 may result in danger to the user or third parties and or impairme...

Page 5: ...erating instructions in a safe place where it can be immediately accessed If the equipment changes hands the documentation should be passed on to the new operator If the documentation gets mislaid please contact your Nordmann supplier Language versions These operating instructions are available in various languages Please contact your Nordmann supplier for information Copyright protection The pres...

Page 6: ...r and comply with the appropriate regulations on work safety and the prevention of accidents This unit may not be used by persons including children with reduced physical sensory or mental abilities or persons with lacking experience and or knowledge unless they are supervised by a person responsible for their safety or they received instructions on how to operate the unit Children must be supervi...

Page 7: ...stem steamcylinder steamdistributor etc get very hot up to 100 C There is danger of burning when touching the hot components Prevention Before carrying out any work on the steam system set the Nordmann RC4 DC4 out of operation as described in chapter 4 3 then wait until the components have cooled down sufficiently thus preventing danger of burning Behaviour in case of danger If it is suspected tha...

Page 8: ...PI controller X Admissible control signals 0 5V 1 5V 0 10V 2 10V 0 16V 3 2 16V 0 20mA 4 20mA Operating parameter configurable via control software 3 2 Identification of the unit The identification of the unit is found on the type plate for the location of the type plate see unit overview Type designation Serial number Month Year Heating voltage Maximum steam capacity Admissible water supply pressu...

Page 9: ...ible 11 Water supply connector not visible 12 Tub 13 Power board 14 Type plate 15 Remote operating and fault indication board Option 16 Control board with CF card 17 Unit switch 18 Drain key 19 Display and control unit 20 Operation status indicators LED s 21 Intermediate panel 22 Front cover 23 Level sensor 24 Steam outlet connector Construction Nordmann DC4 1 2 4 5 7 6 9 3 17 13 12 14 10 15 16 23...

Page 10: ...ble 11 Water supply connector not visible 12 Tub 13 Power board 14 Type plate 15 Remote operating and fault indication board Option 16 Control board with CF card 17 Unit switch 18 Drain key 19 Display and control unit 20 Operation status indicators LED s 21 Unit intermediate panel 22 Front cover 23 Level sensor 24 Condensate hose 25 Ventilation unit 1 2 4 5 7 6 9 3 17 13 12 14 10 15 16 23 22 21 24...

Page 11: ...equired capacity due to lowering of the water level e g because of the evaporation 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 c...

Page 12: ...team hose accessory DS22 11 Condensate hose accessory KS10 12 Steam distribution pipe accessory 41 13 Steam nozzle accessory W21 System overview Nordmann DC4 DS22 7 1 2 4 Z261 9 10 41 11 DS22 KS10 KS10 11 12 41 12 W21 13 W21 13 8 3 6 5 125 1250µS cm 1 10 bar 1 40 C min 10 min 10 40 mm min 50 cm ø22 mm G 3 4 G 3 8 ø10 8 mm min 300 mm min 20 min 10 min 10 min 5 min 5 R m in 3 0 0 m m R m i n 3 0 0 m...

Page 13: ... 4 Water drain connector 5 Filter valve accessory Z261 6 Manometer installation recommended 7 Funnel with siphon building side 8 Water drain hose accessory DS22 9 Connecting cables DS22 8 7 1 2 3 4 6 Z261 9 5 125 1250µS cm 1 10 bar 1 40 C min 10 min 10 40 mm min 50 cm ø22 mm G 3 4 G 3 8 ø10 8 mm ...

Page 14: ...in the display After the system test the unit is in normal operation mode The display shows the standard operating display first page of the indication level Note The contents of the standard operating display depends on the actual operating status and on the configuration of the Nordmann RC4 DC4 and can differ from the opposite display As soon as the humidity controller or the humidistat requires...

Page 15: ...f the external safety chain ventilation interlock has triggered is open As soon as the safety chain is closed again the indication disappears yellow LED Maintenance Function TheLEDlightsifthesteamcylindermustbereplaced green LED Steam Function The LED lights if the unit produces steam The LED flashes alternately with the red LED if the external safety chain ventilation interlock has triggered is o...

Page 16: ...e manual drain cycle is in progress the three LED light up successively To stop the drain cycle press the drain key again To Stop Press Manual Drain Manual Drain Key Menu Set 4 2 2 Remote operating and fault indication If your unit is equipped the optional remote operating and fault indication PCB the following operat ing status are shown remotely Activated remote indication relay When Display on ...

Page 17: ...tart manual draining see chapter 4 2 4 and wait until the steam cylinder is empty 4 Actuate the unit switch on the bottom of the unit 5 Disconnect steam humidifier from the mains Switch off the service switch to mains supply and secure the switch in off position against accidentally being switched on or clearly mark the switch WARNING Danger of burning If steam was produced just before the unit is...

Page 18: ...0V2 Timer On Off Timer Off Power Limit Off Hum Setpoint Off Menu RC4 230V2 Software 1 20LA00 Controlsign 0 10V Limitsignal 0 10V Menu User Code 3562 Enter Number Confirm with Set Esc Set User Settings Set Maintenance Set Esc Set Diagnostic Unit Status Set Remote Test Set Module Test Set ErrorHistory Set Esc Set Main Menu User Set Engineering Set Diagnostic Set Hum Setpoint 50 rH Esc Set Main Menu ...

Page 19: ...dard 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 data Menu RC4 230V2 Power Limit 100 Demand 0 Steam 0 0kg h Set power limitation in of the maximum capacity Actual humidity...

Page 20: ...red dialogue language After confirmation the unit automatically switches to the selected dialogue language Factory setting country specific Options divers languages User Code Enter Number Confirm with Set Esc Set 3562 User Settings Set Maintenance Set Esc Set Settings Controls Set Power Limit 100 On Off Timer Set Language English GFCI Mode On Esc Set Time 12 00 Display LED Set Date 01 10 08 Water ...

Page 21: ...ss the Set key In the upcoming modification dialogue select the desired control type Factory setting External Options External external continuous controller 24VOn Off external On Off humidistat Int P Internal P controller Int PI Internal PI controller 4 6 3 Control settings Select Controls in the settings menu then press the Set key Integr Time 8min Controls Hum Control Int PI Controlsign 0 10V H...

Page 22: ...t the value for the fix humidity setpoint Factory setting 50 rh Setting range 15 95 rh In the upcoming modification dialogue select the desired control signal Factory setting 0 10V Options 0 5V 1 5V 0 10V 2 10V 0 16V 3 2 16V 0 20mA 4 20mA 4 6 3 4 Set the radio address of the optional radio humidity sensor Note This setting is available only if the signal source is set to RF Hum Select RF Hum Addr ...

Page 23: ... Select P Band in the control settings menu then press the Set key In the upcoming modification dialogue set the proportional range in for the internal P PI controller Factory setting 18 Options 6 65 P Band 18 rH 18 rH Esc Set Controls Hum Setpoint Set P Band 18 rH Integr Time 8min Controlsign 0 10V Lim Control Off Esc Set Settings Controls Set Power Limit 100 On Off Timer Set Language English GFC...

Page 24: ...limitation Signal Z Factory setting Off Options On Off 4 6 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 Integr Time 8 min 8 min Esc Set Controls Hum Setpoint Set P Band 18 rH Integr Tim...

Page 25: ... the supply air limitation are activated Select Limit Max in the control settings menu then press the Set key In the upcoming modification dialogue set the upper limit value in rh for the supply air limitation Factory setting 90 rh Options 15 95 rh 4 6 4 Configuring the capacity limitation Let the timer deactivated Off or deactivate the timer if necessary Select Power Limit then press the Set key ...

Page 26: ...the software does not check the plausibility of the timer settings Therefore make sure your settings make sense the On Off timer see chapter 4 6 5 overrides the capacity limit timer Power Limit Power Limit 50 rH Timer Off Esc Set Timer Off On On 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 Power Limit Even...

Page 27: ...in the On Off Timer submenu you determine whether or not factory setting the Nordmann RC4 DC4 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 Settings Power Limit Set On Off Timer Set GFCI Mode On Controls Set Water Manag Set Esc Set On Off Timer ...

Page 28: ...owing chapters 4 6 7 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 modification dialogue select the conductivity range of the supply water Factory setting 125 μS cm Options 125 μS cm 125 μS cm Settings On Off Timer Set GFCI Mode On Water Manag Set Power Limit Set Date 31 10 11 Esc Set GFCI ...

Page 29: ...place Factory setting 72 hours Setting range 1 720 hours In the upcoming modification dialogue set the drain factor in relation to the steam capacity Factory setting 1 0 Setting range 0 5 2 0 4 6 7 3 Selecting the type of draining in standby operation Select StandbyDrain in the water management settings submenu then press the Set key Water Manag Drain Factor 1 0 StandbyDrain Full StandbyDelay 72h ...

Page 30: ... of operation after which a forced draining takes place Factory setting 72 hours Setting range 1 720 hours 4 6 8 Setting the date Select Date in the settings menu then press the Set key In the upcoming modification dialogue set the actual date format yyyy mm dd Water Manag StandbyDrain Full StandbyDelay 72h Force Drain On Drain Factor 1 0 Force Delay 72h Esc Set Force Drain Off On On Esc Set Water...

Page 31: ...lect whether the backlight should be permanently switched on On or the backlight is switched off after certain period of time Time Off Factory setting On Options On backlight permanently switched on Time Off backlight is switched off after a certain period of time see chap ter 4 6 10 3 Settings Water Manag Set Date 31 10 11 Time 12 00 GFCI Mode On Display LED Set Esc Set Time 12 00 12 00 Esc Set D...

Page 32: ...t the period of time after which the backlight and or the steam LED should be switched off Factory setting 5 minutes Setting range 1 60 minutes 4 6 10 4 Setting the contrast Select Contrast in the display LED settings submenu then press the Set key In the upcoming modification dialogue set the desired value for the display contrast Factory setting 30 Setting range 10 no display 60 display turns bl...

Page 33: ... display LED settings submenu then press the Set key In the upcoming modification dialogue set the desired brightness value for the backlight in of the maximum value Factory setting 80 Setting range 20 100 Display LED Steam LED Time Off Off Timeout 5min Contrast 30 Backlight On Brightness 80 Esc Set Brightness 80 80 Esc Set Settings Water Manag Set Date 31 10 11 Time 12 00 GFCI Mode On Display LED...

Page 34: ...o humidity sensor 16 Actual signal on address 1 of the radio humidity sensor 17 Actual signal on address 2 of the radio humidity sensor 18 Actual signal on address 3 of the radio humidity sensor 19 Actual signal on address 4 of the radio humidity sensor Press the Esc key several times to quit the unit information list and to return to the standard op erating display 4 7 2 Interrogation of unit inf...

Page 35: ...ress 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 Module Test Set ErrorHistory Set Esc Set Diagnostic Unit Status Set Remote Tes...

Page 36: ...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 RC4 DC4 out of operation as described in chapter 4 3 switch off the unit disconnect it from the mains and stop the water supply and secure the unit against inadvertent power up CAUTION The electronic components inside ...

Page 37: ...p X Remove disassemble and clean replace if neces sary Steam cylinder receptacle X Inspect clean if necessary Inlet valve X Remove and clean filter insert replace if neces sary 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 installa...

Page 38: ...ront cover to the front then push the cover upward and remove it 2 Release the hose clamp on the steam connector of the steam cylinder then detach the steam hose from the steam connector 1 2 3 4 3 Remove the plugs from the electrodes and from the level sensor 4 Carefully lift steam cylinder out of the cylinder receptacle then remove it to the front CAUTION Put steam cylinder down carefully to avoi...

Page 39: ...cle and push it down to the stop Attach the electrode plugs and the level sensor plug to the respective electrode and sensor con nections according to the colour dots on the steam cylinder see also following illustration Fasten steam hose on the steam connector of the cylinder with hose clamps CAUTION A leaky steam hose can cause damage due to moisture inside the unit CAUTION The outlet connector ...

Page 40: ...able on the tub rubber band then pull cable out of the bracket 6 Remove connecting cables from drain pump and inlet valve 7 Release the fixing clip of the water cup then carefully pull out the water cup together with the hoses and tub to the front While pulling out the parts disconnect the electric cables from the drain pump and the inlet valve as well as the ground cable from the corresponding co...

Page 41: ...ion and rinse well with tap water Note If the pump needs to be replaced remove the vibration damper noice reduction from the defective pump and refit it on the new pump Cylinder receptacle in the unit O ring Remove any limscale from the cylinder receptacle and its connectors using a brush do not use a wire brush If the cylinder receptacle is heavily calcified place it in an 8 formic acid solution ...

Page 42: ...ts 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 5 6 Resetting the maintenance indication After completing maintenance work the maintenance indication yellow LED lights must be reset as follows Se...

Page 43: ... 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 fault message is triggered Fault message additionally to the fault message the red LED lights Further operation is normally not possible any longer the unit is blocked To eliminate the mal function see chapter 6 2 and 6 3...

Page 44: ...d 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 TheinstalledCFcardisnotcompatiblewith 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 Wrong hardware settings red ...

Page 45: ...einstallpressurecompensa tion kit see options Leakage in the water system Inspectwatersystemandsealifnecessary 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 ...

Page 46: ...al Y missing for more than 1 minute Warning W32 Ctrl Sens Broken red lights Error E32 Ctrl Sens Broken No sensor signal present at signal input Signal Y Check humidity sensor signal Y replace if necessary Inspect wiring Signal of humidity limitation sen sor signal Z missing Signal of humidity limitation sensor signal Z missing for more than 1 minute Warning W33 Lim Sens def red lights Error E33 Li...

Page 47: ...e error indication red LED lights To reset the error indication Disconnect the steam air humidifier 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 Warning Error Cause Remedy LED Display LED Display No reception from radio humidity sensor No reception from radio humidity sensor fo...

Page 48: ... to the left and hang it onto the pins of the back panel CAUTION The electronic components inside the humidifier 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 4 Replace the backup battery CR1632 Lithium 3V 5 Reassemble the unit in...

Page 49: ...r system components if necessary unmounted by a qualified service technician 7 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 accordance with local regulations at the authorised collecting point If you have any questions please contact the responsible authority or your local Nord mann repres...

Page 50: ...ure 1 40 C Admissible ambient temperature 1 40 C Admissible ambient humidity max 75 rh Admissible duct air pressure 0 8 kPa 0 8 kPa Type of protection IP20 Conformity CE VDE Dimensions Weights Housing B x H x T 265 mm x 650 mm x 175 mm Net weight 6 2 kg Operating weight 11 0 kg Equipment Steam cylinder type A2 Options Cable glands set 1x CG Radio humidity sensor transmitter and receiver 1x RH Wate...

Page 51: ...chain 24 VDC M Ventilation unit unit type RC4 only Q3 External Service switch voltage supply S1 Unit switch REL4 Relay Heating voltage U1 Receiver radio humidity sensor X1 Connector control signal X3 Connector ventilation unit unit type RC4 only X4 Connector limit signal X6 Connector external safety chain X8 Connector Unit switch X9 Connection terminal voltage supply SWITCH J1 CPU BOARD REL4 MAIN ...

Page 52: ...Notes ...

Page 53: ...Notes ...

Page 54: ...Notes ...

Page 55: ... Nordmann Engineering AG Technical modifications reserved ...

Page 56: ... N G NORDMAN E N G I N E E R I Dampfluftbefeuchter econ CH94 0002 01 Nordmann Engineering AG Lindenhofstrasse 28 CH 4052 Basel Phone 41 61 404 46 50 Fax 41 61 404 46 79 www nordmann engineering com info nordmann engineering com ...

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