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Elsteam KT Series Manual Download Page 26

924KTE4.01 - KT 

series humidifiers

05/2021

| 26 | 

8. OPERATION

8.1  Regulating and calibrating the potentiometers

P2

P4

P6

P5

P3

Fig. 25.   

Position of potentiometers

Potentiometer... Description

P2

Controls the sensitivity of the humidifier to humidistat requests. 

Potentiometer P2 

reducestheoutputoftheconnectedhumidistat:whenturnedanticlockwise,ittakesthe

requesttozero,whenturnedcompletelyclockwise,itintroducesthehumidistatrequestinfull.

Potentiometers P2 and P4 

adaptthesignalwhenthevoltageisnot0.1...6V,soitiscompatiblewiththe

humidifier.

P3

Reserved.

P4

Potentiometer P4

increasesthehumidistatrequest,takingittoamaximumof6V.

To calibrate potentiometers P2 and P4

,see

"7.2 SWITCHING ON AND STARTING UP" ON PAGE 25

.

P5

Determinesthedurationoftheintervalsforfeedingwaterintothehumidifier.Whenturnedclockwise,it

feeds water less frequently so less steam is produced.

P6 (If fitted)

Potentiometer P6 controls a signal if its voltage is different from the humidifier input. 

Forexamplewithasignalof7...10V:

• 

Whenthemachineisoperating,setthehumidistatatthemaximumhumidityrequest;

• Regulate potentiometers P2 and P4 to obtain the required steam production;

• Set the humidistat to no request;

• Turn potentiometer P6

untilthehumidifierpowercontactorisde-energized.

N.B.:  The potentiometers are calibratedin the factory. Please contact ELSTEAM customer service for custom calibration.  

This can only be done by personnel authorised by ELSTEAM. ELSTEAM shall not be liable for any effects caused by non-
authorised personnel tampering with the potentiometers.

NOTICE

MALFUNCTIONING OF THE EQUIPMENT

The equipment must be used and calibrated only by qualified personnel authorised by ELSTEAM.

8.2  Manual water discharge

Ifthehumidifiermustbeswitchedoffforlongperiodsoftime,thefollowingstepsmustbetaken:

• 

SwitchoffthehumidifierbypressingtheON/OFFkeyonthefrontpanel;

• 

SwitchitbackonbypressingtheON/OFFkey;

• 

Thehumidifierwillstartloadingwater(LED4Redon);

•  Wait until LED 4 Red goes off and LED 6 Red comes on;
•  The boiler will begin the discharging procedure (emptying it of water);
• 

Switchthehumidifieroffbeforeithasdischargedallthewater.

Summary of Contents for KT Series

Page 1: ...924KTE4 01 05 2021 KT Series Immersed electrode humidifiers ...

Page 2: ...imensions 11 4 2 Minimum installation distances 11 4 3 Installation 12 4 3 1 Installation instructions 12 5 INSTALLATION 13 5 1 Humidifier parts 13 5 1 1 Top 13 5 1 2 Bottom 13 5 2 Water connections 13 5 2 1 Characteristics of water 13 5 3 Water discharge system 13 5 3 1 Characteristics of fitting 14 5 4 Steam distribution in an AHU or duct 14 5 4 1 Permitted positioning of the distributor in the ...

Page 3: ... and starting up 25 8 OPERATION 26 8 1 Regulating and calibrating the potentiometers 26 8 2 Manual water discharge 26 9 MAINTENANCE 27 9 1 Introduction 27 9 2 Periodical cleaning of the product and parts 28 9 3 Cleaning the boiler 29 9 4 Cleaning the optional stainless steel drain tank accessory 29 9 5 Replacing the boiler 29 9 6 Installing the boiler 29 10 SPARE PARTS 30 10 1 Hydraulics 30 10 2 E...

Page 4: ...rrying out a product evaluation and test in relation to its specific application or use Users can send us comments and suggestions on how to improve or correct this publication Neither ELSTEAM nor any of its associates or subsidiaries shall be held responsible or liable for improper use of the information contained herein ELSTEAM has a policy of continuous development therefore reserves the right ...

Page 5: ...or serious injury WARNING WARNING indicates a situation of imminent danger which if not avoided may result in death or serious injury CAUTION CAUTION indicates a potentially hazardous situation which if not avoided could cause minor or moderate injury NOTICE NOTICE indicates a situation not related to physical injuries but which if not avoided could damage the equipment N B The maintenance repair ...

Page 6: ...onnections DANGER RISK OF ELECTRIC SHOCK AND FIRE Do not use the device with loads greater than those indicated in the technical specifications Do not exceed the temperature and humidity ranges indicated in the technical specifications Use the required safety interlocks disconnectors of a suitable size between the power supply and the humidifier Only use cables with a suitable cross section as ind...

Page 7: ...uildings offices factories etc or Wellness centres 1 3 Main features Isothermal humidifier Sterile steam at a temperature of approx 100 C 212 F Automatic boiler cleaning Automatic descaling of electrodes and boiler reusable Variable steam output 3 60 kg h Built in electronic control using ON OFF signal or 0 10 V proportional Protection against water escaping on the steam side floating ball which s...

Page 8: ...D130 Linear steam distributor 1300 mm 4 26 ft EHSD160 Linear steam distributor 1600 mm 5 25 ft EHSD200 Linear steam distributor 2000 mm 6 56 ft EHSDSP0 Linear steam distributor length on request EHSDY00 Y fitting diameter 38 mm EHSR0107 Steam blower for room TV Special pipe fitting that connects the humidifier and distributor VI Water drainage tank EVHP523 Humidity probe 4 20 mA EV3411M7 Universal...

Page 9: ...ower consumption kW 2 25 7 5 15 3 75 7 5 15 22 5 30 45 Power supply Vac Hz 230 V 50 Hz 400 V 50 Hz Phases Ph 1 3 3 2 3 3 3 3 3 Current per phase A 10 19 38 9 11 22 32 43 65 Water properties Inlet water quality See 5 2 1 CHARACTERISTICS OF WATER ON PAGE 13 Inlet water conductivity μS cm 70 1250 Inlet water hardness f 5 50 Inlet water pressure MPa bar 0 2 1 2 10 Inlet water connection 3 4 GAS Water ...

Page 10: ...per transport accept the goods subject to inspection 3 1 1 Opening the packaging Move the packaging to where the humidifier is to be installed Open the cardboard packaging and remove the protective polystyrene corners Pull the humidifier out 3 1 2 Checking the contents The packaging contains KT series humidifier Operation and maintenance manual Pipe fitting that feeds water from the mains to the h...

Page 11: ...NING MALFUNCTIONING OF THE EQUIPMENT The humidifier must be installed where the minimum distances from all nearby structures and equipment can be guaranteed as shown in this manual Install all the equipment in accordance with the technical specifications given in the respective documentation mm in KT40 400 KT60 400 KT10 KT5 KT10 KT3 KT5 300 11 81 1000 39 36 1000 39 36 300 11 81 300 11 81 300 11 81...

Page 12: ...e equipment is properly earthed NOTICE IRREGULAR INSTALLATION Use brackets with a minimum load bearing capacity of 80 kg when installing the humidifier Open the panels of the humidifier by removing the headless screws with the SW2 5 hex key Remove the panels one at a time pulling them towards you from the bottom and lifting them up Remove the humidifier from the polystyrene Hook the humidifier ont...

Page 13: ...of water Water pressure between 0 2 1 MPa 2 10 bar Temperature between 1 50 C 33 8 122 F Conductivity between 75 1250 μS cm Maximum water hardness between 5 50 f N B If water is harder or if there is more organic residue in it the humidifier will still operate correctly but it must be serviced more regularly Dos Flush water into the drain for a couple of hours before making the final connection Ch...

Page 14: ... drainage system The outlet water can reach a temperature of 98 C 208 4 F or higher WARNING RISK OF BURNS Before draining water make sure you are wearing all the necessary personal protective equipment PPE Do not touch the equipment during draining 5 4 Steam distribution in an AHU or duct The humidifier must be connected to a stainless steel steam distributor with a fixing flange in engineering pl...

Page 15: ... 15 5 4 1 Permitted positioning of the distributor in the duct Horizontal installation Fig 5 Horizontal installation 1 distributor Fig 6 Horizontal installation 2 distributors Vertical installation Fig 7 Vertical installation 1 2 distributors ...

Page 16: ...on example no 1 Distributor is installed in a horizontal duct positioned higher than the humidifier Direction of air flow is not relevant Installation example no 2 Distributor is installed in a vertical duct Direction of air flow is not relevant Installation example no 3 Distributor is installed vertically in a horizontal duct positioned higher than the humidifier Direction of air flow corresponds...

Page 17: ...ing ventilation ducts For more information visit www elsteam it The steam blower must be positioned horizontally with the distribution holes aimed upwards at least one metre from the ceiling and walls WARNING RISK OF BURNS The steam blower must be installed so it is accessible to qualified personnel only WARNING HOT STEAM Do not touch the equipment when it is in operation It must be positioned at ...

Page 18: ...le they are live Do not disassemble repair or modify the product Do not expose the equipment to liquids or chemicals Make sure the equipment is properly earthed and if it is not earth it Before applying voltage to the equipment Make sure all protective elements such as covers hatches and grilles are fitted and or closed Check all wiring connections WARNING REGULATORY NON COMPLIANCE Make sure all t...

Page 19: ...r power supply KT10 400 V Pitch 17 8 mm 0 70 in Ø 3 5 mm 0 14 in mm2 AWG No of conductors 6 9 6 9 6 9 4 mm in 7 0 28 C 2 5 22 12 N m lb in Fig 12 Suitable wiring for power supply KT10 230 V Pitch 17 8 mm 0 70 in mm2 AWG No of conductors 16 5 4 16 5 16 5 mm in 7 0 28 KT20 400 KT20 230 V KT30 Ø 3 5 mm 0 14 in C N m lb in Ø 3 5 mm 0 14 in C 3 26 55 N m lb in 2 5 22 12 Fig 13 Suitable wiring for power...

Page 20: ...r uninstalling accessories hardware cables or wires Always use a correctly calibrated voltmeter to check the system is switched off Current KT3 KT5 KT10 Type Dimension 16 16 16 Fast Fast Fast 10x38 10x38 10x38 10x38 10x38 KT20 32 Fast KT10 230 V 32 Fast Fig 16 Overload protection devices according to model 6 2 2 Replacing fuses Fuse holder 1 2 3 4 5 Fig 17 Overload protection devices N B Only for ...

Page 21: ...ing fuses Control board F1 F2 Fig 18 Protection devices on the control board Reference Function Description F1 Terminal block M1 Protection against overload of auxiliary terminal block M1 F2 Transformer Protection against overload of amperometric transformer ...

Page 22: ...oltage free contact 3 No connection N C 4 5 Short circuiting 6 3 2 Connection with humidistat with voltage output ON OFF and proportional Fig 21 Wiring diagram with humidistat with voltage output ON OFF and proportional TERMINALS 1 No connection N C 2 Connection with humidistat analogue output 3 Connection with humidistat analogue output 4 5 Short circuiting The humidifier has an analogue input 0 ...

Page 23: ...l 3 cursor and terminal 3 decreases 6 3 4 Connection with humidistat which suspends humidification when ventilation is suspended Fig 23 Wiring diagram with humidistat which suspends humidification when ventilation is suspended TERMINALS 1 Depends on the type of connection see section 6 3 WIRING DIAGRAMS ON PAGE 22 2 3 4 Connection with contactor AUX output 5 Connection with contactor AUX output Th...

Page 24: ...of LEDs 2 and 3 should be the same 4 Red Change water If this LED remains on for a long time it indicates that the water has not been changed or has not been changed correctly If this happens consult section Faults and malfunctions The machine will continue to produce steam even if this LED is lit up 5 Red High production The humidifier is producing more steam than requested The alarm is reset man...

Page 25: ...the water supply has been correctly connected Check there are no siphons in the drainage duct Check the ties on the steam outlet have been correctly tightened Check there are no condensation pockets or obstructions in the steam supply pipe To start up the humidifier with the humidistat connected Check the feeding and discharging systems and the steam supply pipe see 5 2 WATER CONNECTIONS ON PAGE 1...

Page 26: ...nput For example with a signal of 7 10 V When the machine is operating set the humidistat at the maximum humidity request Regulate potentiometers P2 and P4 to obtain the required steam production Set the humidistat to no request Turn potentiometer P6 until the humidifier power contactor is de energized N B The potentiometers are calibratedin the factory Please contact ELSTEAM customer service for ...

Page 27: ... the special boiler will reduce the frequency of maintenance and cleaning which again cannot be calculated purely by the conductivity and hardness of the water NOTICE MALFUNCTIONING OF THE EQUIPMENT The humidifier must only be used with water with the characteristics given in this manual If the boiler needs frequent maintenance check the quality of the input water The boiler must be replaced immed...

Page 28: ...fier immediately from the mains Checking the condition of the humidifier Carry out the following controls as shown When What to do When starting up Check there are no leaks after one hour of continuous operation When changing parts Check there are no leaks after one hour of continuous operation Every 3 days Check the humidifier is operating correctly according to the indications given in this manu...

Page 29: ...e the basin back in its original position and reconnect to the drain 9 5 Replacing the boiler Discharge water from the humidifier see 8 2 MANUAL WATER DISCHARGE ON PAGE 26 Turn off the power from the machine using the external disconnector Open the panels of the humidifier as described 4 3 INSTALLATION ON PAGE 12 Unscrew the tie that blocks the inspection cap Remove the plug and clean the humidifi...

Page 30: ... kit for KT20 and KT40 BKT30 Boiler for KT30 and KT60 KT0K06 Grey blue cable kit for KT3 KT5 and KT10 BKTHC Special boiler for highly conductive water KT0K07 Black cable kit for KT30 and KT60 2 BKTK01 Two electrodes for KT3 and KT5 BKTK02 Three electrodes for models KT10 BKTK03 Three electrodes for models KT20 and KT40 BKTK04 Three electrodes for models KT30 and KT60 BKTK06 Three high conductivity...

Page 31: ...transformer for models KT3 230 0101014020 400 Vac transformer for models KT5 KT10 400 KT20 400 KT30 KT40 KT60 4 0150120001 Fuse holder for models KT3 0150130001 Fuse holder for models KT5 KT10 400 KT20 KT10 230 5 KT0K10 Fuse kit for models KT3 KT5 KT10 KT0K11 Fuse kit for KT20 6 0153411020 Disconnector for models KT3 0153421020 Disconnector for models KT5 0153431001 Disconnector for models KT20 01...

Page 32: ...diameter on the rubber membrane Remount the solenoid valve carefully If this happens after the boiler has been replaced check inside the boiler that the hole through which the water is fed has been made 3 When the water has been changed the machine continues to feed water and signal 4 water change stays on This takes a couple of minutes The machine then stops feeding water and begins producing ste...

Page 33: ...d CONTACTOR CONTACT CONSENT CONTACT ON OFF CONTACT PROPORTIONAL SYPHON LED Power supply LED Request LED Production LED Water change LED Overproduction LED Leakage red red red Solenoid valve blue blue blue blue blue red blue GND In REF In blue bottom red top FUSES TRANSFORMER 0 230 0 16 24 1 4 5 6 8 DOOR SAFETY ON OFF 1 2 1 2 3 4 5 M1 Fig 29 Wiring diagram models KT3 ...

Page 34: ...REF In 1 2 3 4 5 M1 PHASE 1 PHASE 2 AT on board AT on board CONTACTOR CONTACT CONSENT CONTACT ON OFF CONTACT PROPORTIONAL SYPHON LED Power supply LED Request LED Production LED Water change LED Overproduction LED Leakage red red red Solenoid valve blue blue blue blue blue red blue blue bottom red top FUSES DOOR SAFETY ON OFF Fig 30 Wiring diagram models KT5 400 ...

Page 35: ...ASE 2 PHASE 3 AT on board AT on board CONTACTOR CONTACT CONSENT CONTACT ON OFF CONTACT PROPORTIONAL SYPHON LED Power supply LED Request LED Production LED Water change LED Overproduction LED Leakage red red red Solenoid valve blue blue blue blue blue red blue blue bottom red top FUSES TRANSFORMER 0 230 0 16 24 DOOR SAFETY ON OFF Fig 31 Wiring diagram models KT10 230 ...

Page 36: ...ASE 2 PHASE 3 AT on board AT on board CONTACTOR CONTACT CONSENT CONTACT ON OFF CONTACT PROPORTIONAL SYPHON LED Power supply LED Request LED Production LED Water change LED Overproduction LED Leakage red red red Solenoid valve blue blue blue blue blue red blue blue bottom red top FUSES TRANSFORMER 0 400 0 16 24 DOOR SAFETY ON OFF Fig 32 Wiring diagram models KT10 400 KT20 400 ...

Page 37: ...upply 230 Vac AT on board AT on board CONTACTOR CONTACT CONSENT CONTACT ON OFF CONTACT PROPORTIONAL SYPHON LED Power supply LED Request LED Production LED Water change LED Overproduction LED Leakage red red red Solenoid valve 1 blue blue blue blue blue red Solenoid valve 2 blue red blue blue bottom red top TRANSFORMER 0 230 0 16 24 DOOR SAFETY ON OFF Fig 33 Wiring diagram models KT20 230 ...

Page 38: ...upply 400 Vac AT on board AT on board CONTACTOR CONTACT CONSENT CONTACT ON OFF CONTACT PROPORTIONAL SYPHON LED Power supply LED Request LED Production LED Water change LED Overproduction LED Leakage red red red Solenoid valve 1 blue blue blue blue blue red Solenoid valve 2 blue red blue blue bottom red top TRANSFORMER 0 400 0 16 24 DOOR SAFETY ON OFF Fig 34 Wiring diagram models KT30 400 ...

Page 39: ...upply 400 Vac AT on board AT on board CONTACTOR CONTACT CONSENT CONTACT ON OFF CONTACT PROPORTIONAL SYPHON LED Power supply LED Request LED Production LED Water change LED Overproduction LED Leakage red red red Solenoid valve 1 blue blue blue blue blue red Solenoid valve 2 blue red blue blue bottom red top TRANSFORMER 0 400 0 16 24 DOOR SAFETY ON OFF Fig 35 Wiring diagram models KT40 400 KT60 400 ...

Page 40: ...tellectual Property Rights Code CPI ELSTEAM forbids the reproduction and distribution even in part of the contents unless express authorisation is obtained directly from ELSTEAM The customer manufacturer installer or end user assumes all responsibility for the configuration of the device ELSTEAM accepts no liability for any possible errors in this document and reserves the right to make any change...

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