Operating And Maintenance Manual Carl Munters-Books Pdf

OPERATING AND MAINTENANCE MANUAL Carl Munters
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OPERATING AND, MAINTENANCE, MODEL HC 150, DEHUMIDIFIER. Rev 6 0 3 14, TABLE OF CONTENTS HC 150, SECTION 1 INTRODUCTION PAGE 1 1. 1 1 Dehumidifier Operating Principle 1 1, 1 2 About the HC 150 1 2. 1 3 Controls and Indicators 1 3, 1 4 Protective Circuits 1 5. SECTION 2 SAFETY NOTES 2 1, SECTION 3 INSTALLATION AND STARTUP 3 1.
3 1 Inspection 3 1, 3 2 Positioning the Unit 3 1, 3 3 Connecting the Ductwork 3 5. 3 4 Electrical Connections 3 5, 3 5 Connecting the Remote Humidistat 3 6. 3 6 Adjusting the Dampers 3 6, SECTION 4 PREVENTIVE MAINTENANCE 4 1. 4 1 Clean the Air Filters 4 1, 4 2 Check the Honeycombe Wheel 4 1. 4 3 Check the Upper and Lower Air Seals 4 1, 4 4 Check the Reactivation Outlet Temperature 4 1.
SECTION 5 TROUBLESHOOTING 5 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 the Humidistat 5 5.
5 10 Checking the Drive Motor Wheel and Seals 5 5, 5 11 Suggested Replacement Parts 5 6. LIST OF FIGURES, Fig 1 1 Operating Principle 1 1, Fig 1 2 HC 150 in Operation 1 2. Fig 1 3 Controls and Indicators 1 3, Fig 1 4 Front View Cover Open 1 4. Fig 3 1 HC 150 Installed in Process Space 3 1, Fig 3 2 HC 150 Installed outside of Process Space 3 2. Fig 3 3 HC 150 Installed with Existing Air Handling Unit 3 3. Fig 3 4 Do Not Install HC 150 This Way 3 4, 1 INTRODUCTION.
Your HC 150 dehumidifier is durable simple to operate and needs very little mainte. nance The HC 150 can give you years of trouble free service if you follow the recom. mendations listed in this manual, We strongly recommended that you read this whole manual This should not take very. long In return you will learn how your dehumidifier works and how to get the best. service from your unit, This manual covers two models The HC 150I is designed for operation on 208 240V. AC The HC 150R is designed for 115V AC The operating instructions are the same for. both models, If you do not understand something in this manual or you have a question about your. 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 The pas. sages inside the wheel are coated with a special substance called a desiccant When. this substance contacts damp air it soaks up moisture When the desiccant is heated it. releases the moisture again, Process Heated, air outlet reactivation.
dry air air inlet, Full contact seals, to separate. 2 air streams, Wet area zone, HoneyCombe, Process air inlet Reactivation air out. moist damp Detail of, HoneyCombe wheel, FIGURE 1 1. OPERATING PRINCIPLE, Let s say that you want to dry the air in a storage room using the HC 150 Damp pro. cess air is pulled into the unit from the storage room The desiccant in the Honey. Combe wheel picks up most of the moisture in the air Once it has been dried out the. process air is vented back into the storage room At this point the moisture has been. taken out of the process air and stored in the HoneyCombe wheel. The next job is to move this moisture out of the wheel As we said the desiccant will. give up moisture when it is heated When it is heated and the moisture released we. say it is reactivated In the HC 150 a stream of reactivation air is taken from outside. the controlled space and heated using an electric heater This heated air is forced. through the channels in the HoneyCombe wheel The desiccant releases the moisture. into the heated air 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 the same time on different sections of the wheel. 1 2 ABOUT THE HC 150, This is a simplified explanation of the operating principle Figure 1 2 shows how we put.
this principle to work in the HC 150 You can still see the parts we discussed in the last. Process air, air outlet, Temperature dry air, anticipator. Overheating TS03, sensor HC 150I only, TS01 Filter. Process Heater, sector of wheel Reactivation, sector of wheel. Desiccant wheel, Reactivation air, Reactivation temperature sensor. Blower TSE1, Process air inlet Reactivation, moist air outlet.
FIGURE 1 2, HC 150 IN OPERATION, figure the HoneyCombe wheel process air stream and reactivation air stream We. have also added a number of other parts, Two sets of seals to separate the two streams of air damp process air and the. heated reactivation air, Blower damper and filter for the process air. Blower and filter for the reactivation air, Temperature sensors. Electric heating elements for the reactivation air. Figures 1 3 and 1 4 show some additional parts on the HC 150 unit The Honey. Combe 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 amber This indicator is on when the AC power to the unit is on. and it is not running not set to Auto or Manual On shut. down the heating elements will switch off The process. Auto Off Manual, Fault light, Time meter Running light. FIGURE 1 3, CONTROLS AND INDICATORS, and reactivation blowers and drive motor will continue to. run to cool down the unit Once cooled down the unit will. become inactive, Manual position amber This indicator is on whenever the HC 150 is operating in.
the manual mode The unit runs continuously until it is. switched off, Running light green This indicator is on whenever the unit is running the Auto. Off Manual switch is in the Manual position or the switch is in. the Auto position and the humidistat contacts are closed. Fault light red This indicator is normally off This light turns on when the. unit overheats See the section on Troubleshooting, 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 the wheel This design. allows reduced energy consumption at low load levels. Overheating Temperature sensor for, temperature wheel cool down cycle. sensor TS01 TS02, Reactivation air, inlet and filter. Process air, Drive motor and outlet, belt tensioner.
Process air, Process air, Reactivation air, blower and outlet. Process air, Entrance for, power connection, FIGURE 1 4. FRONT VIEW COVER OPEN, The unit continues to run for a few minutes after the Auto Off Manual switch is turned off. This cool down cycle helps to protect the heating elements from overheating During. the cycle the wheel continues to turn and the reactivation blower continues to operate. The cool down period is controlled by a thermostat switch TS02. On the HC 150R only a temperature control switch TS04 is included This shuts the. heater off when the wheel is fully reactivated, 1 4 PROTECTIVE CIRCUITS. The HC 150 has several sensors and circuits which protect the machine and operator. from possible problems A temperature high limit switch TS01 is located between the. heater and the wheel This sensor will tell the control circuits if the elements overheat. 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 process air To correct this find the cause of the overheat condition and. replace the fusible link, On the HC 150I only an overheat anticipator TS03 is included This slows the response. of the heater circuit to reduce nuisance overheating faults. If a blower motor is jammed it will start to draw a large amount of electrical current If. one of the motors detects this condition that motor will shut itself down The rest of the. unit will continue to operate unless an overheat fault is triggered The affected motor will. reset itself automatically, 2 SAFETY NOTES, Munters is concerned about the safety of anyone who uses or services the HC 150 unit. Some of the parts inside the HC 150 can be dangerous if an untrained person tries to. service the unit Throughout this manual we have pointed out some of the hazards. which may occur in the use of the HC 150 We have also listed the precautions which. you should take to avoid these problems, In this manual we will use three different kinds of messages to warn you of possible. Immediate hazard which will result in severe personal injury or. Hazard or unsafe practice which may result in severe personal. injury or death, Hazard or unsafe practice which could result in minor personal. injury or property damage, Please keep 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. voltage and current to kill you or cause severe burns Do not work with. 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 work For extra safety also turn off the circuit. breaker inside the unit, Some HC 150 units are purchased with an optional humidistat If wired. incorrectly the contacts inside the humidistat may carry a high. voltage This voltage and current can cause serious injury or death. Don t work on the parts inside the humidistat unless you are a trained. electrician, Don t place the HC 150 unit outdoors The cabinet is not weather. proof If the unit is mounted outdoors water may drip into the. electrical parts This may cause an electrical shock hazard. The two blowers inside the HC 150 spin very quickly Your hand may. be hurt if you put it inside a blower while it is turning Keep your hands. away from the blowers while the unit is turned on Do not run the HC. 150 unless both the process and reactivation fans are protected by. ductwork or finger guards, There are two conditions which could cause the unit to start without. When the Auto Off Manual switch is set to Auto the unit may start. if the humidistat contacts close, The motors on the blowers have internal over current 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 mild type enzyme. or dish washing detergent The wheel is sensitive to high pH alkaline. condition Choose a detergent with a neutral pH Do not use any. solvent to wash the wheel, PLEASE READ ALL OF THIS MANUAL PLEASE FOLLOW THE INSTRUCTIONS. CAREFULLY AND COMPLETELY PLEASE PAY PARTICULAR ATTENTION TO THE. SAFETY INSTRUCTIONS AND PRECAUTIONS, 3 INSTALLATION AND STARTUP. 3 1 INSPECTION, 1 When the unit arrives check immediately for signs of shipping damage If you do. notice any damage report it to the trucking company right away. 2 Remove the cover on the front of the unit as shown in Fig 1 4 Check the following. 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 reactivation air filters are in place. 3 2 POSITIONING THE UNIT, 1 You must allow three clearances around the unit. a 24 space in front of the unit so you can remove and replace the. HoneyCombe wheel, a 7 space in front of the process air intake to allow smooth air flow not. necessary if ductwork is installed, Reactivation air OUT.
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 the wheel This

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