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Содержание HERRMIDIFIER HERRTRONIC MD Series

Страница 1: ...HERRTRONIC MD SERIES HUMIDIFIERS ...

Страница 2: ... conditions 20 Maintenance 21 Troubleshooting Guide General maintenance notes 23 Operating the humidifier without external controls 23 Troubleshooting with fault light illuminated 24 Troubleshooting with unit detected non indicating fault 25 Troubleshooting without unit detected faults 26 Output Input of terminal strips and terminal block 27 Illustrations for cylinder replacement 29 Exploded view ...

Страница 3: ...oper performance In either case items returned without an RMA number will not be accepted 4 Each of the Herrtronic series of steam generating humidifiers contains a plastic steam generating cylinder that is to be considered a routinely disposable part to be changed at regular maintenance intervals at the user s expense This steam generating cylinder is not covered by this Warranty If after the fir...

Страница 4: ...water level until the capacity set j High Drain Threshold e Capacity c5 Set Point Gi CI J Low Drain Threshold Cylinder Full point output is achieved As the mineral concentration in the water increases the water conductivity also increases Accordingly the rate of boiling increases Eventually the rate of boiling reduces the output capacity below the low drain threshold before the cycle time initiate...

Страница 5: ...and the control humidity will be maintained within the bandwidth of the controller 3 Proportional Integral Over a repeating time period the P I control simply evaluates the difference between the average control humidity and the humidity setpoint and adjusts the bandwidth to minimize the offset Optimal control is attained in most cases with this alternative NOTE If your application is unique or wa...

Страница 6: ...ning of the Herrtronic MD humidifier is important to allow for proper operation and easy maintenance Minimum clearance around the cabinet should be maintained as follows CLEARANCES UNIT MDM MDS MDD SERIES 5 30 10 100 110 200 Left 2 2 2 Right 20 20 20 Top 12 12 12 Bottom 10 10 10 Four lag bolts 2 5 16 and 2 1 4 are supplied with the MDS and MDM units which are designed to be secured to a wall Insta...

Страница 7: ...MIN lDJ1 MAX 0 0 FlEXIBLE DRAIN CONNECTtON ECOUMI NDED l 1I 6 MIN LENGTH OF 1 114 MlN I D COPPER lINE RECOMMeNDED IF PVC IS USED LOCAL CODES REQUIRE A LOWER DRAIN ReseRVOIR TEMPERATURE DRAIN WATER ADD DRAlNTEIIPEAING BALANCE OF DRAIN UNETO BE MIN I D WIlli A M MUM PITCH OF 118 PER 12 OF RUN ground wire 3 Install external overcurrent protection and provide wiring in accordance with the NEC state an...

Страница 8: ...d higher than the distribution system a condensate separator EST 250 is available from the factory If you must split the discharge of one steam outlet into two ducts with the same static pressure a y connector EST 255 is available from the factory The length of steam hose after the Y connector must be the same for equal distribution of steam Mount the unit as close to the distribution pipe as poss...

Страница 9: ...R FOOT r I No Sags 2SoImm Allowed rc 0 8 DD Air Flow y Horizontal Duct I A V Steam dlochargo mUS1 always be from the top 01 distributor A J1 J1 V V V f j 1J t A it 1 V V FIGURE 7 STANDARD DUCT DISTRIBUTION VartJcaI Duct DUCT HEIGHT 10 lS 254mm 40Smm DUCT HEIGHT lS I T f r I I I H j 76mm I I I h in 6 lli 1 i 2 FIGURE 4 DUAL DISTRIBUTOR PIPES o 8 1 2 TUBE TO DRAIN EST 2S0 CONDENSATE SEPARATOR ______...

Страница 10: ...en completely absorbed typically 10 ft The device should be located such that it can sense humidified air as it approaches saturation Do not mount in dead air spaces such as inside of corners Air proving devices should be mounted so that they sense air flow or the absence of it Wire the device so that it closes when air flow is present and will open when there is no air flow The purpose of the dev...

Страница 11: ...ear Example A direct acting 2 10 VDC wall sensor will send a 2 VDC signal if the R H w OUT R B FIGURE 13 4 5 T1 Supply 60 T2 VDC 7 OT3 Sensor T4 Out FIGURE 14B OT1 VDC 7 OT2 Sensor 8 OT3 9 T4 Supply T5 T6 Out FIGURE 16A FIGURE 17 o 1 0 mADC Sensor level in the space is 10 it would send a 10 VDC signal if the R H level is 90 The humidifier receives this input and compares it to the setpoint that ha...

Страница 12: ...he relay is energized closing the contacts whenever an indicating fault condition exists When units are networked together the master s alarm contacts will close if a fault occurs at either the master or one of the slaves The contacts are connected at poles 1 and 2 of terminal strip 3 see page 34 Do not exceed the contact specifications Contact rating 24 VAC 3 0 A 24 VDC 2 1 A Unit Networking When...

Страница 13: ...for monitoring and changing of setpoint parameters EST 1184 ELECTRICAL CONNECTION 7 8 X 1 1 8 DOUBLE KNOCKOUT LOCATED ON TOP BACK BOTTOM 17 50 EXTERNAL FUSE tl tlt Jt J t lt J CONTROL PANEL DATA PLATE 13 50 J oo Weight 17 Ibs EST 1183 Remote Display Option The remote display unit EST 1183 allows remote monitoring of a single MD humidifier from up to 100 feet away with shielded cable The display fe...

Страница 14: ... seconds 2 On units where voltage is 380 VAC or greater the cycle time is 130 seconds On units where voltage is 240 VAC Or less the cycle time is 150 seconds 3 If a unit is ordered with the modulating limit feature the Umit Input will be ENABLED If an On Off type or no high limit is used the Limit Input and Throttling Range screens will have been eliminated Parameter Definitions All Control Modes ...

Страница 15: ...D will read NOTE Control Mode may be 1 2 or 3 This example pertains to mode 3 In control modes 1 and 2 not all setpoints will appear The table on page 14 identifies parameters visible in each mode 2 Press Enter to initiate Menu 2 program The LCD will read 3 Press the 0 or 0 button to increase or decrease the pre programmed setting as desired 4 Press Enter to register the setpoint and move to the n...

Страница 16: ...nits the address of the slave unit is factory set as 01 To program the Slave repeat steps 1 through 12 NOTE If communications are not successful the LCD will read Possible sources for failed communication attempt a Chosen Slave does not exist b Slave unit does not have power connected c Faulty communications wiring 1 Improper polarity of RS 485 Controls Terminal Strip Poles 11 12 2 Resistor requir...

Страница 17: ...FF position or its lowest setting FIGURE 20 Drain Tee Fill Tube Drain Cup with SolenOid FILL SYSTEM Fill Metering Solenoid Mode 2 Proportional Set the controller to send the lowest signal in the range i e 4 rnA in a direct 4 20 rnA range Mode 3 P I Set Control Setpoint through Menu 2 at least 11 below the Control RH displayed in Menu 1 2 Set high limit to its highest setting all control modes 3 Se...

Страница 18: ...e fill valve adjusting screw Fig 21 to regulate the fiowrate of the cool inlet water The amount of tempering will depend on incoming temperature and pressure of the water supply 8 Once the water is boiling and steam is being produced check the following No leaks in the steam distribution lines or connections The steam has a clear path from the cylinder to its distribution paints Any low spots in t...

Страница 19: ...IT WOULD f6 WC 1ll J CENOID OR SUPPLY VALVE TO HUMIDIRER A SMALL AMOUNT OFWATER IS NOT UNCOMMON o 6 MIN LENGTH OF H 4 MIN 1 0 COPPER LINE l 4 RECOMMENOED I S RECOMMENDED rtf IF PVC IS USED LCOAL CODES REQUIRE A LOWER TEMPERATURE DRAIN WATEFL ADD DRAIN TERMPERING o KNOCKOUT FOR CONTROL WIRING MUST BE SEALED TO PREVENT RLASH STEAM FROM ENTERING LOW VOLTAGE COMPARTMENT o BALANCE OF DRAIN LINE TO BE l...

Страница 20: ... then neither the Master nor any Slave unit has any faults If any slave has a fault the LCD will read Utilize the communications Menu 4 from the Master to access the particular slave with fault s to determine the fault Refer to communication instructions in the programming section Press the up arrow key to determine if there is more than one slave that has a fault System Fault Conditions See Troub...

Страница 21: ...icient to allow the unit to operate Herrrnidifier has considerable experience optimizing the performance of your humidifier on fringe water conditions Consult your representative To remove the cylinder 1 Tum the unit off by pressing the onloff button Drain the cylinder completely using the manual drain Menu 5 2 Disconnect the power to the unit 3 Disconnect the electrode power wires and jumpers if ...

Страница 22: ...WASHER POWER WIRE OCKWASHER POWER WIRE G OR J FIGURE 26 FIGURE 27 POWER WIRE B FIGURE 28 POWER WIRE AORD FIGURE 30 22 CYLINDER FULL ELECTRODE ELECTRODE CAP u r IOCKWASHER POWER WIRE JUMPER I WIRE J LLOCK WASHER POWER WIRE 11 AORD POWER WIRE IORL POWER WIRE HORK FIGURE 29 POWER WIRE GORJ ELECTRODE CAP E OCKWASHER POWER WIRE OCKWASHER Herrtronic MD Series Installation and Operation Manual ...

Страница 23: ... may reset the unit by depressing the reset button on the back of the board or turning the unit off and on through the disconnect See PC Board diagram on page 28 E If the circuit board needs to be changed make sure the ribbon cable connector from the main board to the display board is as originally supplied blue stripe on top at LCD and on the right at PCB Reattach the three 11 Pin connectors in t...

Страница 24: ...ent draw 138 of rated current and has shut itself down and drained completely to prevent possible damage The system has already taken preventative action by attempting to drain down prior to the fault condition occurring Therefore further analysis is required before restart is attempted Possible causes of the alarm would be 1 Restricted drain system clean and replace as necessary 2 Use of softened...

Страница 25: ...pecific fault conditions G Contactor Failed Unit has tried to tum on but contactor has not closed or unit should be off but contactor is still closed Possible causes of this alarm would be 1 Failed contactor repair or replace It s common to find metal chips or other construction debris lodged in the contactor preventing proper operation 2 Faulty control wiring 3 Auxiliary contact dislodged from pr...

Страница 26: ...stopped while there is still a demand for humidification 3 Insure proper wiring for both air flow switch and high limit humidistat 4 Failed blower unit in RDU repair and replace H Cylinder Full Unit has detected water level at the top of the steam cylinder Possible causes of this alarm would be 1 Low conductivity water supply start up condition Install electrode jumper wires if not already connect...

Страница 27: ...attaching display board 3 Check for proper ribbon cable connections to LCD and PC board See pg 23 Item E 4 Replace ribbon connector LCD and PC board NOTE If problem persists supply power is outside specified operating parameters Notify factory OutputlInput of Terminal Strips and Terminal Block Terminal Block Position 1 6 24 RET GND 7 12 24 VAC All twelve 12 positions should be utilized RDU Termina...

Страница 28: ...ositive Digital 11 RS 485 Communication Negative Digital 5 Notused Connector 1 Power Input 24 VAC 2 Power Input 24 RET GND 3 Not used 4 24 VAC for contactor coil Always 5 24 VAC for contactor coil switched 6 7 Not used alarm option dry contact 8 24 VAC for drain valve always 9 24 VAC for drain valve switched 10 24 VAC for fill valve always 11 24 VAC for fill valve switched 1 Door interlock input 2...

Страница 29: ... EST 1002 6 1 EST 1002 6 2 Parts List Item No Single Phase 5 50 Ihr Three Phase 5 50 Ihr Three Phase 60 100 Ihr Description Steam Cylinder Assemblies MDD EST 1002 6 2 Three Phase 60 100 hr Parts List Item No Description Steam Cylinder Assemblies MDM EST 416 2 EST 416 3 Single Phase 5 15 Ihr Three Phase 5 30 I hr Herrtronic MD Series Installation and Operation Manual 29 ...

Страница 30: ...2 I07 EST IS26 CD EST loo2 EST IS2S j EST 207 FlLL SLS ASsetllY EST I 161 r II a EST 363 9 GT 116 GT IIB I ll H 9 GT 153 L J FV 12 EST Iosa EST I89 1845 Cl AH 13 s y EST I89 ESl IS2 EST II6B o EST 146 EST I 127 EST 14Q9 rJ EST 3S3 EST 120 EST liS EST II06 Model MDS Parts Schematic 30 Herrtronic MD Series Installation and Operation Manual EST I 107 H2 EST 119 EST I20 ...

Страница 31: ...ose EST l146 KEP Nut 6 32 EST 189 Brass Washer EST 1168 Ribbon Cable Assembly EST 207 Clamp EST 1250 Microprocessor Board Provide Specific EST 235 Power Distribution Block 175A 1 Ph Model and Control Arrangement EST 236 Power Distribution Block 175A 3 Ph EST 1278 KEP Nut 4 40 EST 237 Power Distribution Block 335 A EST 1525 Drain Reservoir EST 238 Ground Block EST 1526 Gasket Drain Reservoir EST 23...

Страница 32: ...262 EST IOI2 e 1 107 Ii00C EST IS26 I ESH092 EST IS25 ij EST 207 1 GT IS3 LJ FV 12 EST Iosa EST l89 I CA I845 C AH 13 s y EST I89 Q EST 152 EST I ISS EST I 136 EST I278 EST I 122 EST I 250 Cl ClClt J Clt J EST I 1 6 EST I 127 EST 1409 EST 353 EST ll20 EST lIS7 EST 1206 Model MDM Parts Schematic 32 Herrtronic MD Series Installation and Operation Manual EST I 124 EST ll07 If 1123 EST 119 EST 120 ...

Страница 33: ...bly EST 165 SS Hose Clamp Steam Hose EST 1250 Microprocessor Board Provide Specific EST l71 Steam Hose Model and Control Arrangement EST 189 Brass Washer EST 1278 Hole Plug 1 2 EST 207 Clamp EST 1525 Drain Reservoir EST 238 Ground Block EST 1526 Gasket Drain Reservoir EST 353 Shorty Bushing 7 8 AH 13 Rubber Washer EST 354 High Voltage Fuse 600 V FV 12 Brass Compo Nut 1 4 EST 355A High Voltage Fuse...

Страница 34: ...Troubleshooting Guide MDS and MDM Wiring Diagram 34 Herrtronic MD Series Installation and Operation Manual g I I I I I I I I I I I A 0 ...

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