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MES Electrode
Steam Humidifiers

Installation, Operation,

Maintenance, Spare Parts, and

Exploded Views Guide

IMPORTANT:

Read and save this guide for future reference.

This guide to be left with equipment owner.

Form 08-111

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Summary of Contents for None

Page 1: ...ectrode Steam Humidifiers Installation Operation Maintenance Spare Parts and Exploded Views Guide IMPORTANT Read and save this guide for future reference This guide to be left with equipment owner Form 08 111 ...

Page 2: ...YLINDER REPLACEMENT 3 WHEN TO REPLACE THE STEAM CYLINDER 3 REMOVING THE OLD CYLINDER 4 INSTALLING THE NEW CYLINDER 4 MAINTENANCE 4 EXTENDED SHUTDOWN 4 TROUBLESHOOTING 4 TERMS USED 4 STARTING POINT 5 DIAGNOSTIC PROCEDURES TROUBLE SHOOTING TIPS 7 SOFTWARE REQUIREMENT FOR MODBUS RTU 8 PHYSICAL DIMENSIONS DIAGRAM 11 WIRING DIAGRAM 12 SPARE PARTS LIST 14 EXPLODED VIEWS DIAGRAM 15 ...

Page 3: ...e materials shall be placed in the duct and or the air plenum PRINCIPAL OF OPERATION When the humidistat calls the cylinder fills to 100 of the Full Load Amperage F L A or to the top of the cylinder whichever comes first See Figure 1 If it reaches 100 F L A the water heats and boils away to a level giving 80 F L A An electronic timer uses the rate of amp fall to determine the water level The objec...

Page 4: ...lative humidity location for humidifiers 5 rh 80 rh Check to see that the unit is securely mounted on a level surface with the proper drain and water supply Check for correct voltage with appropriately sized service Check that the steam distributor steam supply hose and condensate line are correctly installed and routed back to the unit Ensure that the external control humidistat is located in an ...

Page 5: ...of table salt no more in a cup of water and add it to the cylinder by means of the fill cup attached to the plumbing section Open the plumbing compartment and add salt solution through cylinder outlet Excessive amounts of salt will result in erratic operation of the unit however normalization of the unit will occur automatically through the solid state control sequence CAPACITY ADJUSTMENT The MES ...

Page 6: ... which always goes on the single pin offset from the others See Figure 6 4 Ensure that cylinder plugs are very snug on the pins 5 Replace loose fitting plugs loose plugs may generate enough heat to melt and destroy the plug and new cylinder plugs must be ordered MAINTENANCE WARNING The plumbing and electrical compartments contain high voltage components and wiring The access cover is attached with...

Page 7: ...the wiring diagram 1 Check for 24 Vac across terminals 18 and 26 on PC board 2 Jumper the humidistat on external control terminal strip If contactor operates then control system is at fault 3 The low voltage 3 amp fuse located in the control box could be blown 4 The contactor holding coil could be open or shorted 5 The switch could be defective Recheck that the auto on off drain switch is still at...

Page 8: ...y be caused by foaming and or back pressure or leaking drain valve Cylinder is almost empty check for magnetic pull on drain solenoid indicating miswiring If no pull drain actuator is blocked open remove disassemble and clean If drain is occurring through activated drain valve valve is miswired or electronics are faulty consult factory If drain is occurring through the overflow on the fill cup thi...

Page 9: ...me possible drain restric tions Check if fill valve leaks not holding supply water Back pressure may also cause very conductive water conditions Was the humidifier short cycling Check for short cycling Water conductivity too high 2 flashes in sequence Off No current detection for 30 minutes with continuous call for humidity Check water level in the cylinder should be more than full If not check fi...

Page 10: ...tes reverts to 0 Force Drain When written to FF will interrupt the humidification process and activate the humidifier drain valve After 20 minutes the controller will reset this value 00 After a microprocessor reset the default setting shall be 00 40276 255 will start the process 0 will be accepted to clear if the request has not been cleared itself Set MODBUS address Change the humidifier control...

Page 11: ...xample 015F hex 35 1 Amps Steam output The current steam output in Kg Hr or LBS hr See UNITS Modbus 40031 30860 Hex value representing the humidifies steam output in kg hr Resolution 0 10 kg or LBS Example 013B hex 31 5 kg hr or LBS hr Run hour counter The number of hours the humidifier has been in operation since the last time the run hour counter was reset 30414 Hex value representing the number...

Page 12: ... capacity calculations 40031 0 0 1 0 LBS 1 KG Unit type Required by the control board for current and capacity calculations 406000 Depending on the setting in UNITS Modbus 40031 Hex value representing maximum unit capacity 100 fill off amps Unit voltage Required by the control board for current and capacity calculations 40610 Format is Hexadecimal numeration table see below Hex Value Unit Type 0 1...

Page 13: ...7 27 1 cm 17 3 43 9 cm 15 8 4 21 3 cm 10 5 26 7 cm 12 6 32 2 cm 19 4 49 3 cm 20 8 4 21 3 cm 10 5 26 7 cm 12 6 32 2 cm 19 4 49 3 cm 25 10 5 26 7 cm 10 5 26 7 cm 12 6 32 2 cm 21 3 54 0 cm 30 10 5 26 7 cm 10 5 26 7 cm 12 6 32 2 cm 21 3 54 0 cm CONFIGURATION 1 2 3 4 5 6 7 8 9 MES U MES P lbs kg lbs kg lbs kg lbs kg lbs kg lbs kg lbs kg lbs kg lbs kg 5 8 2 3 7 9 6 4 3 9 0 4 1 10 4 4 7 13 7 6 2 13 1 6 0...

Page 14: ...EADS BY OTHERS OR INCLUDED WITH PVC UNIT 2 LEADS FOR SINGLE PHASE 3 LEADS FOR THREE PHASE PRIMARY TERMINAL BLOCK provided with PVC unit PRIMARY POWER MES U CONTROL BOARD CURRENT TRANSFORMER CHANGE CYLINDER LAMP DRAIN VALE FILL VALVE HIGH WATER SENSOR PCB ON SWITCH OFF DRAIN 187 insulated fast on For field connection 3 AMP FUSE PRIMARY CONTACTOR 24 vac By Others ON OFF CONTROLS 24 VAC INPUT By Othe...

Page 15: ... 13 ...

Page 16: ...ll Cup 142 1050 1 1 1 1 1 1 1 1 21 Fill Valve Assembly 1 132 1061 1 1 1 1 1 1 1 n a n a 22 Fill Valve Assembly 2 132 1062 n a n a n a n a n a n a n a 1 1 23 Fill Valve Hose Specify Length 132 8850 1 1 1 1 1 1 1 1 24 Fill Valve Spring Clamp 132 5023 2 2 2 2 2 2 2 2 25 Fill Valve Screw 145 5004 2 2 2 2 2 2 2 2 26 Fitting 1 to 3 8 149 5072 1 1 1 1 1 1 1 1 27 Fitting 3 8 to 1 4 compression 90 degree 1...

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Page 19: ... by law No liability whatsoever shall be attached to THE COMPANY until said products have been paid for in full and then said liability shall be limited to the original purchase price for the product Any further warranty must be in writing signed by an officer of THE COMPANY THE COMPANY s limited warranty on accessories not of Walter Meier s manufacture such as controls humidistats pumps etc is li...

Page 20: ... Inc 826 Proctor Avenue Ogdensburg New York 13669 Walter Meier Climate Canada Ltd 2740 Fenton Road Ottawa Ontario K1T3T7 Tel 866 NORTEC 1 Fax 613 822 7964 northamerica climate waltermeier com www humidity com PRINTED IN CANADA ...

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