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OPERATING AND MAINTENANCE MANUAL

MODEL: HC-150 / DEW-150

Section 1

Operating and Maintenance Text

Section 2

General

Arrangement Drawing ................................................................................... 82967

Wiring Diagram 115 /1/ 50/60 ..................................................................................... 50187

Wiring Diagram 208-240 /1/ 50/60 .............................................................................. 50188

Section 3

Replacing Fusible Links

Humidistat

Field

Connections ..................................................................................... 26992

Blastgate

Installation Instructions ............................................................................... 27110

Recommended Spare Parts List (HC-150I) ................................................................ 21237

Recommended Spare Parts List (HC-150R) ............................................................... 21238

Содержание DEW-150

Страница 1: ...2 a General Arrangement Drawing 82967 b Wiring Diagram 115 1 50 60 50187 c Wiring Diagram 208 240 1 50 60 50188 Section 3 a Replacing Fusible Links b Humidistat Field Connections 26992 c Blastgate Installation Instructions 27110 d Recommended Spare Parts List HC 150I 21237 e Recommended Spare Parts List HC 150R 21238 ...

Страница 2: ...OPERATING AND MAINTENANCE MANUAL MODEL HC 150 DEHUMIDIFIER Rev 6 0 3 14 ...

Страница 3: ...1 5 1 Possible Trouble Conditions 5 1 5 2 Auto Off Manual Switch is Set to Auto Running Light Does Not Come On 5 1 5 3 Fault Light is On and Machine Should Be Running 5 1 5 4 Reactivation Outlet Temperature is Too Low 5 2 5 5 Poor Dehumidifying Performance 5 3 5 6 HoneyCombe Wheel is Stopped Running Light is On 5 3 5 7 Checking the Heating Elements 5 4 5 8 Checking the Thermistor 5 4 5 9 Checking ...

Страница 4: ...dehumidifier please call Munters at 978 241 1100 or send a fax to 978 241 1217 Ask to speak with one of our Technical Support people 1 1 DEHUMIDIFIER OPERATING PRINCIPLE Figure 1 1 shows how the HC 150 removes moisture from the air The heart of the system is the HoneyCombe wheel The detail in Fig 1 1 shows the structure of the wheel As you can see the wheel has a series of air passages or channels...

Страница 5: ...r stream Finally the damp reactivation air is vented outside At this point the moisture has been moved from the storage room to the wheel then from the wheel into the outside air The process is complete You may have noticed that at one moment we re using the wheel to pick up moisture and a moment later we re heating the wheel to drive off the moisture In the HC 150 both actions are happening at th...

Страница 6: ...wheel is turned by a small drive motor and a toothed belt A spring type tensioner automatically adjusts the belt tension 1 3 CONTROLS AND INDICATORS The unit has four indicators and controls on the control panel Auto Off Manual switch Auto position amber This indicator is on whenever the HC 150 is operating in the automatic mode The unit is switched on and off by a remote humidistat Off position a...

Страница 7: ...eshooting Time meter This indicator shows how many hours the unit has operated The control system uses a number of sensors and controllers to supervise the activity of the HC 150 On the model HC 150I only a Solid State Power Controller SSP1 turns the heating elements on and off This controller responds to a signal from a temperature sensor TSE1 which is located in the reactivation air stream after...

Страница 8: ... temp above 320 F If this happens the Fault indicator will light and the machine will stop To reset the machine wait until the unit cools to normal temperature Turn the Auto Off Manual switch off then on again The wiring for each heating element includes a fusible link This link will open if the element overheats If this happens the HC 150 will continue to operate but will not dehumidify the proce...

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Страница 10: ...these points in mind as you use or service the unit The HC 150 is wired for 115V to 240V AC The unit can produce enough voltageandcurrenttokillyou orcausesevereburns Donotworkwith the electrical parts unless you are a trained electrician Always turn off the power before you work inside the unit There should be a disconnect switch installed outside the unit Turn off this switch before you do any wo...

Страница 11: ...nt protection If one of these blowers is overloaded the affected motor will turn itself off This over current protection will reset automatically so the blower may start without warning You can avoid either kind of problem if you turn off the power before working on the unit This type of wheel is washable It is best to clean the wheel using clean water only If you must use a detergent choose a mil...

Страница 12: ...tems Remove the packaging restraints Be sure the HoneyCombe wheel is in position Push in on the drive mechanism and release the belt Be sure the HoneyCombe wheel can be turned by hand with some resistance Replace the drive belt in the working position Be sure that it is in good contact with the drive sheave Be sure the drive belt and rollers are free of grease Ensure that the process and reactivat...

Страница 13: ...age space don t use dehumidified air Reactivation air outlet Vented outdoors air is very damp don t use for space heating Note The reactivation air can also be taken from and returned to an indoor space where the temperature and humidity levels are not important 4 Wherever the intake or outlet ducts open outdoors protect them from the elements Install weather hoods and bird screens Reactivation ai...

Страница 14: ...50 will not be able to work correctly You may connect both sides of the HC 150 downstream of the air handling unit as shown in Part B of Fig 3 4 The arrangement shown in Fig 3 3 is better however This set up allows the air handling unit to heat or cool the processed air after it leaves the HC 150 7 On some installations makeup air is taken from outside the process space and added to the process ai...

Страница 15: ...it The air handling unit can create back pressure This can cause the air to flow backwards through the HC 150 HC 150 DEHUMIDIFIER AIR HANDLING UNIT POOR ARRANGEMENT When set up this way the air handling unit cannot condition the air temperature after it leaves the HC 150 FIGURE 3 4 DO NOT INSTALL HC 150 THIS WAY PART B PART A ...

Страница 16: ...vation air The dampers are very important for correct operation of the unit 4 The ductwork for the reactivation air outlet should always be insulated This will reduce condensation of the moisture in this air stream Run the reactivation ductwork so that it slopes away from the dehumidifier This way any condensed moisture will run away from the dehumidifier On this type of installation the unit shou...

Страница 17: ...ify For best results place the humidistat near the inlet duct for the process air This will provide the most accurate sensing of the relative humidity in the process space If possible mount the humidistat away from the floor and ceiling and do not mount it near any doors and windows Do not mount the humidistat near the outlet vent for the process air from the HC 150 4 Make the wiring connections b...

Страница 18: ... efficiently as possible Close the reactivation damper a bit and mark the damper setting Wait ten minutes for the temperatures in the machine to stabilize then check the temperature at the reactivation outlet 8 If the temperature remains at 120 F 5 close the reactivation damper a bit more and mark the new damper setting At the point where the reactivation outlet tem perature drops below 115 F the ...

Страница 19: ...ersing Steps 2 and 3 above 4 2 CHECK THE HONEYCOMBE WHEEL Check the Honeycombe wheel to be sure it is rotating correctly Look for signs of discoloration caused by dirt dust or other foreign materials In order to clean the wheel and inspect the seal you must remove the drive motor and wheel See the instructions in section 5 10 Checking the Drive Motor Wheel and Seals 4 3 CHECK THE UPPER AND LOWER A...

Страница 20: ...ou want to be sure the HC 150 is ready to operate turn the Auto Off Manual switch to the Manual position 5 2 AUTO OFF MANUAL SWITCH IS SET TO AUTO RUNNING LIGHT DOES NOT COME ON This service procedure involves an electrical hazard Service work should only be done by an electrician who has been qualified by Munters 1 Be sure the unit is receiving power Check the circuit breaker or fuse which suppli...

Страница 21: ...you try to operate the HC 150 without any ductwork This can allow too much process air through the unit Install a damper downstream of the process outlet See section 3 6 Adjusting the Dampers 3 If the unit is overloaded and is trying to remove too much moisture the temperature at the outlet will drop below 120 You can think of the excess moisture as cooling off the stream of heated air Is there so...

Страница 22: ...e process space which could increase the moisture load on the unit Check all openings into the process space to be sure all doors and windows are closed Check for leaks in the ductwork 4 The volume of process air may be too great You can reduce the volume of process air by closing the process damper 5 Check the air temperature at the outlet for the reactivation air It should be 120 F 5 If it is no...

Страница 23: ...sistance across each of the heating elements using an Ohmmeter The resistance across each element should be 8Ω to 19Ω Take your measurements at the incoming wire leads If you find an infinite resistance the element has developed an open circuit and must be replaced A faulty heating element assem bly must be replaced as a unit 4 Each of the power wires for the elements includes a fusible link Once ...

Страница 24: ... assembly 5 Remove the small roller wheels which are located on each side of the HoneyCombe wheel To remove a roller wheel lift the wheel shaft up Pull the bottom of the shaft toward you then down 6 Gently lift the wheel a bit and pull it forward Be careful not to damage the lower seals 7 The small passages in the HoneyCombe wheel may be plugged by dust or dirt To inspect the passages hold the whe...

Страница 25: ... To replace the wheel reverse Steps 2 through 6 above 5 11 SUGGESTED REPLACEMENT PARTS Note For part numbers see the electrical parts list attached at the end of this manual Noncritical Critical Part Appl Appl Desiccant wheel 11 dia x 200 mm 1 Seal kit 1 Drive subassembly for desiccant wheel Model HC 150R 1 1 Drive subassembly for desiccant wheel Model HC 150I 1 1 Belt for desiccant drive wheel 1 ...

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Страница 27: ...Munters Corporation 79 Monroe Street P O Box 640 Amesbury MA 01913 0640 TEL 978 241 1100 or 800 843 5360 FAX 978 241 1217 WWW http www muntersamerica com e mail dhinfo munters com ...

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Страница 31: ...Replacing Fusible Links Revision 7 11 ...

Страница 32: ...LY FROM HEATER BY PULLING STRAIGHT OUT ON THE UNINSULATED FEMALE TERMINALS 12 REPLACE FUSABLE LINK WITH NEW FUSE SUB ASSEMBLY BY REINSTALLING FEMALE TERMINALS TO SYSTEM TABS 13 REPEAT STEPS 8 THROUGH 12 FOR THE SECOND REPLACEABLE FUSE 14 BOTH FUSE ASSEMBLIES MUST BE INSIDE THE INNER REACTIVATION CHAMBER BEFORE REINSTALLING THE METAL MESH FILTER 15 REASSEMBLY REVERSE STEPS 1 THRU 6 Replacing Fusibl...

Страница 33: ...tat Field Connections G HSP1 Input Plug HUMIDISTAT VICONICS P 2 P 1 P 3 G HSP1 Input Plug HUMIDISTAT Regin P 1 P 2 P 3 DEH COM PWR DEH 1 2 HSP1 Input Plug HC 150 300 Regin Humidistat p n 90485 xx All Dashed Wiring by others All Dashed Wiring by others ...

Страница 34: ...M PWR DEH All Dashed Wiring by others H200 Direct Connect to HC 150 300 Circuit Board PCB1 Main Unit Circuit Board E19 E20 Board Ground lug or mounting post G HSP1 Input Plug HUMIDISTAT ROTRONICS SF D65 P 1 P 2 P 3 All Dashed Wiring by others 1 2 3 4 5 6 ...

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Страница 36: ...ca Gel 30146 10 1 SEALS SEAL KIT UPPER LOWER 43552 01 1 MOTORS DRIVE MOTOR Desiccant Drive 92483 01 220V 1 DRIVE KIT NEW CANTILEVERED 43579 01 1 BELTS DRIVE BELT 91626 04 1 FILTERS PROCESS IN 95007 32 1 REACT IN 95007 39 1 ROLLERS DESICCANT SUPPORT 15985 2 HEATERS 208V 230V 91761 03 1 FUSES 1 AMP 250 VOLT 1 3 AMP 250 VOLT 6 FNM 10 AMP 250 VOLT 92012 33 2 MUNTERS DH PH 978 241 1100 FAX 978 241 1214...

Страница 37: ...EL Titanium Enhanced Silica Gel 30146 10 1 SEALS SEAL KIT UPPER LOWER 43552 01 1 MOTORS DRIVE MOTOR Desiccant Drive 92485 01 1 DRIVE KIT NEW CANTILEVERED 43579 02 1 BELTS DRIVE BELT 91626 04 1 FILTERS PROCESS IN 95007 32 1 REACT IN 95007 39 1 ROLLERS DESICCANT SUPPORT 15985 2 HEATERS 115V 91761 14 1 MUNTERS DH PH 978 241 1100 FAX 978 241 1214 PH 800 843 5360 02 DRIVE KIT WAS 43579 01 HEATER WAS 91...

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