Elsteam REH12 Installation, Use And Maintenance Manual Download | Manualshive

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AIR HANDLING UNITS

RESISTORS HUMIDIFIER: REH

Installation, use and maintenance guide

Rel. 21.2.EN

Kettle body to install in

the AHU

Control

Unit

1
2
3
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Summary of Contents for REH12

Page 1: ...AIR HANDLING UNITS RESISTORS HUMIDIFIER REH Installation use and maintenance guide Rel 21 2 EN Kettle body to install in the AHU Control Unit ...

Page 2: ... PRINCIPLE 5 6 CHARACTERISTICS 5 7 HUMIDIFIER INSTALLATION 7 7 1 WATER CONNECTION 7 7 2 DRAIN AND OVERFLOW HYDRAULIC CONNECTION 7 7 3 ELECTRICAL CONNECTION 8 7 4 ENABLE CONTACT 8 7 5 DRAINING BLOCK MANUAL CALIBRATION 8 8 WORKING PRINCIPLE 10 9 MENU AND PARAMETERS 10 9 1 ON OFF MODE 10 9 2 LANGUAGE 10 9 3 HUMIDITY SELECTION 10 9 4 NOMINAL CURRENT 10 9 5 DRAIN TIME 10 9 6 WATER FILL TIME 11 9 7 PURG...

Page 3: ...into any opening 1 2 Conditions thermo hygrometric installation Make sure that the environmental conditions of the place where the installation is carried out are always compatible with the requirements of the product as required in this manual Each Elsteam product cannot be installed in places exposed to weather conditions or frost unless different terms are explicitly expressed in documents coun...

Page 4: ...ice which ensures that the water in the humidifier does not freeze in the absence of a request for production The use of expensive and bulky rubber tubes for the conveyance of steam The use of steel distributors within the UTA The formation of condensation inside the tubes and distributors with decreased performance The need to install the pipes avoiding traps and depressions that would prevent th...

Page 5: ...t appear in the display 5 Working Principle When switched on the humidifier performs a complete drain of kettle thus ensuring to operate with clean water If the humidistat requires steam production the humidifier starts to fill with water until it reaches the level of exercise If the time required to reach that level is greater than a predetermined value the humidifier stops and indicates an alarm...

Page 6: ... with the microbiological requirements defined for drinking water by the regulations in force in the area of use the use of totally or partially demin eralized water is recommended to reduce the frequency of maintenance Input Water Conductibility μS cm 0 1250 Input Water Hardness Fr 0 50 Input Water Pressure MPa bar 0 02 1 0 2 10 Input Water Connection M 3 4 G Drain Water Connection mm 42 GENERAL ...

Page 7: ... has female fitting inch We recommend the use of totally or partially demineralized water in order to significantly reduce the mainte nance and cleaning of limescale deposits however the use of drinking water and softened water is allowed according to the data in paragraph 6 Characteristics Input pressure must be between 2 and 10 bars 7 2 Drain and overflow hydraulic connection The humidifier is e...

Page 8: ...ier electronic board If you do not use such enable left the contact shorted J5 6 and J17 8 terminals as received from Elsteam 7 5 Draining block manual calibration The drain block is calibrated in the best closed position during the testing phase In case this position were to vary with time you see the high losses of the draining pipe it should proceed to a new adjustment of the closure of the dra...

Page 9: ...EH 21 2 EN 9 Elsteam S r l via E Fermi 496 21042 Caronno Pertusella va Tel 39 02 9659890 Fax 39 02 96457007 E mail info elsteam it Web http www elsteam com ELSTEAM s r l HUMIDIFIER VEH1112 Version 1 2 Control System Programming ...

Page 10: ...s instead a total change of the tank water g If the demand of production remains at zero for a period of more than 4 hours the tank will be emp tied to avoid the formation of bacteria 9 Menu and Parameters Pushing the SET button you can access the configuration menu of the system The buttons and allow increasing and decreasing the parameter value Click OK to confirm the new parameter value and pas...

Page 11: ...ent The time is in seconds from 1 to 1200 20min Default 80 9 9 TA coefficient Set the coefficient for the TA mounted in the humidifier It is a number from 10 to 9999 modified in steps of 10 Default 750 9 10 Level sensor Set the type of level sensor connected Can be chosen among HV Level switch High Voltage Input IN DIG0 Contact with float on input IN DIG1 jumper JP2 must be closed a N C normally c...

Page 12: ... The humidifier stops for some minute to lower tempera ture and then restarts so to avoid damaging of heaters A L A R M LACK WATER No water in the kettle Check the input solenoid Check the electrical connections of the solenoid A L A R M DRAIN MOTOR The drain motor is not closed within the al lotted time Timeout of closing Check the electrical connections of the motor Check that there are no block...

Page 13: ... 1 Used and available connections J1 TA Input 1 Phase R 2 Com 3 Phase S J17 Analogues Inputs J5 Digital Inputs J1 TA inputs J13 Add On supply J6 Motors with po tentiometers J16 TRIAC connec tions J15 HV opto input J10 RS485 J3 Proportional Output 0 10V J8 Opto outputs J4 Relay outputs J2 Transistor out puts Unit internal connections J12 AC input 12V J9 Keyboard con nector User available connection...

Page 14: ...IN AN0 7 IN AN1 8 GND Humidistat 0 10V J2 Transistor Outputs 1 Out1 2 GND 3 Out2 4 GND Inlet solenoid valve J16 TRIAC Connections 1 R 2 R 3 S 4 S 5 T 6 T J15 HV Opto Input 1 IN DIG0 2 IN DIG0 J5 Opto Inputs 1 IN DIG1 2 IN DIG1 3 IN DIG2 4 IN DIG2 5 IN DIG3 6 IN DIG3 Float level sensor N C or N O Alternative to the HV sensor Jumper JP2 closed 3 available analogue inputs 1 available output 2 availab...

Page 15: ... 8 GND J6 Motor with Potentiometer 1 Mot1_A 2 Mot1_B 3 V_Aux 4 In_Pot1 5 GND 6 Mot2_A 7 Mot2_B 8 V_Aux 9 In_Pot2 Drain motor with position potentiome ter Mot Mot V pot Pot Pot 1 available motor control with potenti ometer J4 Relays Out puts 1 Relay 1 A 2 Relay 1 B 3 Relay 2 A 4 Relay 2 B 5 Relay 3 A 6 Relay 3 B 7 Relay 4 A 8 Relay 4 B 9 Relay 5 A 10 Relay 5 B Relay alarm signal Enable contact Acti...

Page 16: ...va Tel 39 02 9659890 Fax 39 02 96457007 E mail info elsteam it Web http www elsteam com Available 0 10V proportional output J3 0 10V Proportional Output 1 Out 2 Gnd J10 RS485 1 A 2 B 3 Gnd J8 Opto Outputs 1 Out 2 C 2 Out 1 E 3 Out 2 E 4 Out 1 C Available RS485 line 2 available optocoupled outputs ...

Page 17: ...HU Resistors Humidifier REH 21 2 EN 17 Elsteam S r l via E Fermi 496 21042 Caronno Pertusella va Tel 39 02 9659890 Fax 39 02 96457007 E mail info elsteam it Web http www elsteam com 12 Schematic diagram ...

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