vwr humiditychamber manual

5/16/2018 VWR Humiditychamber Manual

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SHELlLIB

HUMIDITY CHAMBERWITH MICROPROCESSOR CONTROL

MODELS: HC5/HC5R

INSTALLATION AND OPERATIONAL MANUALSheldon Manufacturing Inc. P.O. Box 627 Cornelius, Oregon 97113

EMAIL: [email protected] INTERNET: http://www.Shellab.com/-Sheliab1-800-322-4897 (503) 640-3000 FAX (503) 640-1366
mailto:[email protected]://www.shellab.com/-Sheliabhttp://www.shellab.com/-Sheliabmailto:[email protected]


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TABLE OF CONTENTSSECTION 1.0 RECEIVING AND INSPECTIONSECTION 2.0 GRAPHIC SYMBOLSSECTION 3.0 THEORY OF OPERATIONSECTION 4.0 INSTALLATION

SECTION 5.0 CONTROL OVERVIEWSECTION 6.0 OPERATIONSECTION 7.0 MAINTENANCESECTION 8.0 TROUBLESHOOTINGSECTION 9.0 PARTS LIST

UNIT SPECIFICATIONSSCHEMATICS

REV. 041084861577

These units are for professional, industrial or educational use where the preparationor testing of materials is done at approximately atmospheric pressure and noflammable, volatile or combustible materials are being heated. These units are notintended for hazardous or household locations or use.

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Section

RECEIVING AND INSPECTIONYour satisfaction and safety require a complete understanding of this unit.Read the instructions thoroughly and be sure all operators are given adequatetraining before attempting to put the unit in service. NOTE: This equipmentmust be used only for its intended application; any alterations or modificationswill void your warranty.

1.1 Inspection: The carrier, when accepting shipment, also accepts responsibilityfor safe delivery and is liable for loss or damage. On delivery, inspect forvisible exterior damage, note and describe on the freight bill any damagefound, and enter your claim on the form supplied by the carrier.

1.2 Inspect for concealed loss or damage on the unit itself, both interior andexterior. If necessary, the carrier will arrange for official inspection tosubstantiate your claim.

1.3 Return Shipment: Save the shipping crate until you are sure all is well. If forany reason you must return the unit, first contact customer service forauthorization and supply nameplate data, including model number and serialnumber. Please see the manual cover for information on where to contactcustomer service.

1.4 Verify that all of the equipment indicated on the packing slip is included withthe unit. Carefully check all packaging before discarding. These units areequipped with 6 shelves, 2 shelf support assemblies, 1 fan cover and 4leveling feet.

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Section

GRAPHIC SYMBOLSYour incubator has been provided with a display of graphic symbols which isdesigned to help in identifying the use and function of the available user adjustablecomponents.2 . 1 it Indicates that you should consult your manual for furtherdescription or discussion of a control or user item.2 . 2 i Indicates "Temperature".2 . 3 - - t Indicates "Over-Temperature Safety".2 . 4 Co Indicates "Degrees Centigrade".2 . 5

. . . . . . . . . . . _ . Indicates "AC Power ON".2 . 6 U Indicates "Water Jacket Low".2 . 7 [3 Indicates "ON/I" and "OFF/O".2 . 8 0 Indicates "Relative Humidity".2 . 9 %RH Indicates "Percent Relative Humidity".2 . 1 0 ~ Indicates "Potential Shock Hazard" behind this protective

@ partition.2 . 1 1 Indicates "Protective Earth Ground".2 . 1 2 Indicates "Manual Adjustable Component".

2 . 1 3 Indicates "Unit should be recycled" (Not disposed of in land-fill)

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Section

THEORY OF OPERATION3.1 Model HC5: The Model HC5 Humidity Chamber is designed to maintain

temperature between 35C and 70C, and relative humidity between 40-95%.Reference Section 9.0, Unit Specifications, for an illustration of the relativehumidity performance characteristicsChamber humidification is achieved by means of a low-pressure vaporgenerator injecting water vapor through a small orifice. The water vapor isintroduced into the chamber at the blower discharge.It should be noted that this unit incorporates an exhaust fan dehumidificationsystem. Ambient relative humidity will limit the units ability to achieve lowerrelative humidity settings. The exact lower limit can be determined by using apsychometric chart to extrapolate the lower limit at higher temperatures andambient humidity.

3.2 Model HC5R: The Model HC5RL humidity chamber is designed to maintaintemperature between 10 and 70C and relative humidity between 40-95%.For more information, reference Section 9.0 Unit Specifications for anillustration of the relative humidity performance characteristics. The unitcooling system allows control at or below ambient temperatures.Chamber humidification is achieved by means of a low-pressure vaporgenerator injecting water vapor through a small orifice. The water vapor isintroduced into the chamber at the top right side.Ambient relative humidity will limit the unit's ability to achieve lower relativehumidity settings. The exact lower limit can be determined by using apsychometric chart to extrapolate the value when ambient conditions areheated to the higher chamber temperatures.

NOTE: The HC5R should remain upright for 24 hours prior to poweringup. This will allow the oil to settle in the compressor.

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Section

INSTALLATIONLocal city, county or other ordinances may govern the use of this equipment. If youhave any questions about local requirements, please contact the appropriate localagency. Installation may be performed by the end user.Under normal circumstances this unit is intended for use indoors, at roomtemperatures between 5 and 40C, at no greater than 80% Relative Humidity (at25C) and with a supply voltage that does not vary by more than 10%. Customerservice should be contacted for operating conditions outside of these limits.4.1 Power Source: The electrical supply circuit to the humidity chamber must

conform to all national and local electrical codes. Consult the unit's serialdata plate for the voltage and ampere requirements before makingconnection. VOLTAGE SHOULD NOT VARY MORE THAN 10% FROM THESERIAL PLATE RATING. This unit is intended for 50/60 Hz application. Aseparate circuit is recommended to prevent possible loss of product due tooverloading or failure of other equipment on the same circuit.

CAUTION: Make sure that the chamber is located in its intended position &level before filling the water jacket.4.2 Location: In selecting a location, consider all conditions which might affectperformance such as heat from radiators, ovens, autoclaves, etc. Avoid direct

sun, fast moving air currents, heating/cooling ducts and high-traffic areas. Allowa minimum of Scm between the unit and walls or partitions which might obstructfree air flow.4.3 Lifting I Handling: These units are heavy and care should be taken to useappropriate lifting devices that are sufficiently rated for these loads. Unitsshould only be lifted from their bottom surfaces. Doors, handles and knobs are

not adequate for lifting or stabilization. The unit should be completely restrainedfrom tipping during lifting or transport. All moving parts, such as shelves andtrays should be removed and doors need to be positively locked in the closedposition during transfer to prevent shifting and damage.

4.4 Leveling: The unit must sit level and solidly. Leveling feet are supplied andmust be installed in the four holes in the bottom corners of the unit. With thefeet installed and the unit standing upright, each foot can be raised by turning it

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in a counterclockwise direction. Adjust the foot at each corner until the unitstands level and solid without rocking. If the unit must be moved, turn theleveling feet all the way clockwise to prevent damage while moving.4.5 Water Drain Line: On the external back bottom of the unit, there is a line for

excess condensation to drain from the bottom of the unit (See Figure 1). Thisline should be run into a floor drain, but can be run to a shallow pan with anautomatic sump pump. Under no circumstances should this line be plugged. Ifthe line is plugged the condensation will pool on the floor of the test chamberand flow out when the door is opened.

4.6 Vapor Trap: Located in the water drain line, this must be filled withapproximately % cup of DISTILLED WATER. This will prevent the chamberhumidity from escaping and still allow any condensation to drain away. If theunit is not used for a long period of time this trap should be flushed and refilledwith DISTILLED WATER.

4.7 Filling and Draining the Water Jacket: The front panel of the incubator has aWATER LOW warning light. Fill the water jacket with DISTILLED WATER bymeans of the fill port located at the top right rear of the unit. STOP filling whenthe WATER LOW warning light goes off. When full, the unit holdsapproximately 15.5 U.S. gallons (58 liters). To drain the jacket, attach asuitable hose to the siphon tube marked SIPHON HERE located to the left ofthe fill port mentioned above. Start a siphon and allow unit to empty into adrain or catchments area.

4.8 Humidification Water Supply: On the back of the body there is a ' ! - 4 inchcompression fitting marked WATER IN. This fitting should be attached to aDISTILLED WATER supply source. Deionized or tap water should not beused. They will have a detrimental effect on the unit causing corrosion orobstructions and premature failure of this assembly. The supply sourceshould be gravity fed or pressure can be regulated to no more than 2 psi with awater pressure regulator valve. A continuous supply is required to maintain theoperating level. If the supply is disconnected or in some other manner cut offfrom the vapor generator, the level will drop and the float switch in the vaporgenerator will shut the vapor generator off.

4.9 Pressure Relief: This valve is located just below the WATER IN fitting and ismarked RELIEF. It provides pressure relief for the steamer humidifier system.The cracking pressure range is set for 3-5 PSI. Please note that the protectiveshipping cap should be removed prior to operation.

4.10 Shelves and Interior Parts: Internal parts consist of a left and right duct withshelf slides attached, a top duct/fan cover, and shelves. Shelves can beinstalled at even spacing or as desired. ( See Figure 2) The glass door gasket

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is also removable by unbolting the gasket guards. See Cleaning prior toassembling.4.11 Cleaning: The unit chamber should be cleaned and disinfected prior to use.Remove all of the interior parts, if assembled, and clean thoroughly, including

all corners using a suitable disinfectant that is appropriate to your application.Regular periodic cleaning is required. Special care should be taken whencleaning around sensing heads to prevent damage. DO NOT use chlorine-based bleaches or abrasive cleaners, as this will damage the stainless steelinterior.Figure 1

PRESSURE ~~REL IEF

D EH UM I D IF Y E XH A US TFAN EXTEN S I ON F A N G U A R DIST ILLEDWATER

INLET

rOR DSETW AT ER JA CKE TF ILL P OR T(REMOVESTOPPER)

WAlER JACKETS IP HO N T UB E

~CHM1BE/' DRA IN

oR EA R V IE W

9850755M

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Figure 2

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A I i g n s he I f 5 1 i d e r b e tw e e n s h e I fs ta n d a rd a n d 5 1 i d e i n t o p l a c e a ta 5 l i t e a n g le i n s h e I f s ta n d a rds lo ts , T h e n I i f t a n d r o ta tin g in top la c e u n t i I b a s e o f 5 1 id e i s p a r a lle lto l in e r b o t to n , A s i II u s t r a te d f r o Mth e b o t to n u p ,

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CONTROL PANEL OVERVIEW(See Figure 3)

5.1 Power Switch: The main power I/O (on/off) switch controls all power to theunit and must be in the I/ON position before any systems are operational.5.2 High Limit Safety Thermostat: This control consists of an adjustable knoband a scaled dial from 1-10. The Safety is independent of the Main Control

and guards against any failure of the Main Control which would allow thetemperature to rise past the set point. When properly set, the Safety takescontrol of the heating element if the temperature rises to this Safety set point,and allows continued use of the chamber until the problem can be resolved orservice can be arranged.

5.3 Safety Light: This pilot lamp is on when the High Limit Safety Thermostathas been activated. Under normal operating conditions this pilot light shouldnever be on.5.4 Main Temperature Controller: This controller is marked Co and consists of

the digital display and UP/DOWN arrow pads for inputting set pointtemperatures and calibration. It can be set in .1 degree increments anddisplays chamber temperature in .1 degree increments.5.5 Heating Light: This pilot lamp is on when the Main Temperature Controllerhas activated the heating elements. It is on continually while the chamber isreaching set point, and cycles on and off while the controller maintains setpoint.5.6 Relative Humidity Controller: This control is marked %RH and consists ofa digital display and UP/DOWN arrow pads for inputting set point percentsand calibration. This control can be set in 1% increments and displayschamber humidity in 1% increments.5.7 Injection Light: This pilot lamp is on when the Humidity controller hasactivated the vapor injection solenoid. It is on continually while the chamberis reaching humidity percent set point, and cycles on and off while thecontroller maintains set point.

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5.8 Water Jacket Low Indicator: Located just below the power switch andmarked WATER LOW, this light is on when the water in the jacket is low,indicating DISTILLED WATER needs to be added to the jacket.

5.9 Door Heat Control: Located in the upper corner of the outer door liner, thiscontrol consists of an adjustable control knob and scale with a line marked38 for reference. This control allows the door to maintain a temperatureconsistent with that of the water jacket and prevent condensation fromforming on the glass door.

Figure 3

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4 5 0 0 6 6 7

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Section

OPERATIONIt is recommended that your unit be allowed to reach operating temperature beforeengaging the humidifying system. This requires setting the RH set point to 0 (zero)until the unit is at operating temperature. See Section 6.7 for changing the RH setpoint. The water jacket must be filled prior to setting temperatures.CAUTION: When opening the door at high temperatures there is a dangerfrom steam/high humidity escaping. The door should be opened a smallamount then paused until the steam dissipates.6.1 Turn the power switch to the lION position. Turn the High Limit Safety

Thermostat to its maximum position, clockwise and place the shelves in thechamber.6.2 Place a reference thermometer in the chamber where it can be easily viewed,and so that it is not touching any shelves or chamber walls. Taping thethermometer to a petri dish is a method that works well. A second reference

thermometer taped to the outer door is advisable for calibrating the doorcontroller.6.3 Set Main Temperature Control: To enter the set point on the control, push

and release either the Up or DOWN arrow pad one time and the digitaldisplay will start to blink from bright to dim. While blinking, the display isshowing the set point, which can be changed to the desired temperature bypushing the UP or DOWN arrow pads. If the arrow pads are not pushedwithin five (5) seconds, the display will stop blinking and will read thetemperature in the chamber. Allow at least twenty-four (24) hours for thetemperature to stabilize. It is recommended that set point adjustments aremade again after the calibration procedure is completed.

6.4 Set Door Temperature: The door temperature is adjusted at the factory.The heated door feature helps eliminate condensation on the glass door andinside the chamber. If an adjustment is needed, the control for this feature islocated at the upper left top of the outer door liner. It consists of anadjustment knob and a graduated scale. Note that the door temperature canbe adjusted to keep condensation from forming but cannot eliminate it onceformed. Use a dry towel to wipe off the inner door before resetting thecontrol. Increase the door temperature with clockwise adjustments. Ifcondensation appears on the window during use, it usually indicates the door

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temperature is too low. If condensation occurs on the inner walls during use,it usually indicates the door temperature is too high. Adjust the control up ordown until whichever condensation problem exists, disappears. Usually adoor temperature of 1C above the chamber temperature will prevent anycondensation from occurring, but often each application needs customadjustment. Allow at least 24 hours between adjustments to allow thechamber conditions to totally stabilize.

6.5 Calibrating Temperature Control: Compare the reading on the referencethermometer with the digital display. If there is an unacceptable difference,put the display into calibrate mode by pressing both the UP and DOWN arrowpads at the same time and holding them in until the two outside decimalpoints start to flash. When the decimal points are flashing, the display can becalibrated to match the reference thermometer by pressing the UP or DOWNarrow pads until the display reads the correct value. Allow the unit to stabilizeagain until five (5) consecutive readings at five (5) minute intervals read aconstant value.

6.6 Set the High Limit Safety Thermostat: After the Main Temperature Controlis set and calibrated the High Limit needs to be set. First turn the controlknob counterclockwise just until the Safety Indicator light comes on. Thenslowly turn the knob clockwise just until the safety Indicator light goes off.The safety Thermostat should now be set approximately 1C above the Maintemperature Control set point.

6.7 Set Humidity Control: First, place a reference hygrometer in the chamberwhere it can be easily viewed. To enter set point mode on the HumidityControl push and release either the Up or DOWN arrow pad and the digitaldisplay will start to blink from bright to dim. While blinking, the display isshowing the set point which can be changed using the UP or DOWN arrowpads. If the arrow pads are not pressed within five(5) seconds the display willrevert to showing the process or actual parameter within the chamber. Allowat least twenty four (24) hours for the unit to stabilize.

CAUTION: When opening the door there is a danger from the steam/highhumidity escaping. The door should be opened two to three inches thenpaused until the steam cloud dissipates.

6.8 Calibrating Humidity Control: Compare the reading on the referencehygrometer with the digital display. If there is an unacceptable difference, putthe display into calibrate mode by pressing both the UP and DOWN arrowpads at the same time until the display begins to blink. When the display isblinking it can be calibrated to match the reference hygrometer by using theUp/Down arrow pads until it reads the correct value. If the arrow pads are notpressed within five (5) seconds, the display will revert to showing the processor actual parameter within the chamber. Allow the unit to stabilize again.

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Section

MAINTENANCENote: Prior to any maintenance or service on this unit, disconnect power cordfrom the power supply.7.1 Cleaning: The unit chamber should be cleaned and disinfected on a regularbasis. Remove shelving, shelving supports and fan guard then cleanthoroughly, including all corners using a suitable disinfectant that is appropriate

to your application. Regular periodic cleaning is required. Special care shouldbe taken when cleaning around sensing heads to prevent damage. DO NOTuse chlorine-based bleaches or abrasive cleaners as this will damage thestainless steel interior.

7.2 Remove and reinstall the gasket carefully when cleaning the chamber interior.Remove this gasket by removing the stainless retaining brackets from thesides, top and bottom interior of the chamber. This is done by unscrewing theretaining nuts and washers from each bracket and pulling the bracket off theretaining studs. Reverse the above steps when reinstalling the gasket.

7.3 Storage: If the humidity chamber is to be turned off it can be reactivatedwithout controller adjustments. The vapor trap should be flashed out andrefilled with distilled water and the humidification water supply connected.Prior to storage the interior should be wiped dry to eliminate contamination. Ifthe unit is to be transported disconnect the water supply, clean the waterdrain line, and screw the leveling feet in. See Section 4.3 Lifting/Handling fortransport instructions.

7.4 There is NO maintenance required on the electrical components. If the unitfails to operate as specified please review the troubleshooting guide prior tocalling for technical support.

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Section

TROUBLESHOOTINGAlways make a visual inspection of the unit and control console whentroubleshooting. Look for loose or disconnected tubing and wires which may be thesource of the trouble.

TEMPERATURETemperature too high

Display reads "HI" or "400"+

Chamber temp goes way over setpoint and then settles to set pointTemperature too low

Display reads "LO"

11 controller set too high-see Section 6.321 controller failed on - call Customer Service31 wiring error - call Customer Serviceprobe is unplugged, is broken or wire to sensor is broken -trace wire from display to probe; move wire and watch displayto see intermittent problems

Recalibrate - see Section 6.511 high limit set too low - Reset Safety Thermostat seeSection 6.621 controller set too low - see Section 6.331 unit not recovered from door opening - wait for display tostop changing41 unit not recovered from power failure or being turned off -incubators will need 24 hours to warm up and stabilize51 element failure - see if heating light is on; compare currentdraw to data plate61 controller failure - confirm with front panel lights thatcontroller is calling for heat71 high limit failure - confirm with front panel lights that Safetyis operating correctly81 wiring problem - check all functions and compare wiring toowners manual - especially around any areas recentlyworked on91 loose connection - check shadow box for looseconnections11 sensor is plugged in backwards - reverse sensor wires tocontroller21 if ambient temperature is lower than range of unit -compare set points and ambient temperature to ratedspecifications in Section 9.0

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Unit will not heat over a temperaturethat is below set point

Unit will not heat up at all

Indicated chamber temperatureunstable

Will not maintain set point

11 confirm that fan is moving and that amperage and voltagematch data plate - check fan motor motion in shadow boxand feel for air movement in chamber21 confirm that set point is set high enough -turn SafetyThermostat all the way clockwise and see if heating light orsafety light comes on31 check connections to sensor41 check calibration - See Section 6.511 verify that controller is asking for heat by looking forHeating light - if pilot light is not on continuously, there is aproblem with the controller21 check amperage - amperage should be virtually atmaximum rated (data plate) amperage31 do all controller functions work?41 is the Safety Thermostat set high enough? - fordiagnostics, should be turned fully clockwise with the pilotlight never on51 HAS THE FUSEICIRCUIT BREAKER BLOWN?

11 0.1 may be normal21 is fan working? - remove top panel and verify movement ofcooling fan in center of shadow box31 is ambient radically changing - either door opening orroom airflow from heaters or air conditioning? - stabilizeambient conditions41 sensor miss-located, damaged or wires may be damaged- check mounts for control and Safety Thermostat sensors,then trace wires or tubing between sensors and controls51 calibration sensitivity - call Customer Service61 high limit set too low - be sure that safety is more than 5degrees over desired set point; check if safety pilot is oncontinuously; turn controller knob completely clock-wise tosee if problem solved then follow instructions in owner'smanual for correct setting - see Section 6.6 for setting highlimit71 electrical noise - remove nearby sources of RFI includingmotors, arcing relays or radio transmitters81 bad connection on temperature sensor or faulty sensor -check connectors for continuity and mechanical soundnesswhile watching display for erratic behavior; check sensor andwiring for mechanical damage91 bad connections or faulty solid state relay - checkconnectors for mechanical soundness and look for corrosionaround terminals or signs of arcing or other visibledeterioration10 1 WATER JACKET EMPTY OR LOW - CHECKINDICATOR WARNING LIGHT OR WATER LEVEL AT FILLPORT IN BACK OF UNIT.11 assure that set point is at least 5 degrees over ambient21 see if ambient is fluctuating

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Display and reference thermometerdon't match11 calibration error - see Section 6.521 temperature sensor failure - evaluate if pilot light isoperating correctly31 controller failure - evaluate if pilot light is operatingcorrectly41 allow at least two hours to stabilize51 see if reference thermometer is certif ied

Reference thermometer does notmatch digital display

See Temp-10Can't adjust set points or calibration

11 turn entire unit off and on to reset21 i f repeatedly happens, call Customer Service

Calibrated at one temperature, butnot at another

This can be a normal condition when operating temperaturevaries widely. For maximum accuracy, calibration should bedone at or close to the set point temperature.

HUMIDITY LEVELCan't achieve rated humidityltemp

11 check ambient and refer to chart in Section 9.0 forspec limits21 relative humidity sensor or controller failure31 check for bad door seal41 check for leaking water around steamer51 confirm a sufficient and distilled water source61 calibrate humidity sensor with reference hygrometer71 assure that pressure relief valve is closed81 assure that steamer is working (see Humid-4)91 leaks in air intake flapper

Can't decrease humidity to set point11 check ambient and refer to chart in Section 9.0 forspec limits21 assure that exhaust fan is working31 assure that exhaust fan blower casing is free of pooledwater41 check solid state relay51 set point has to be 10 percentage points below readingon control to turn exhaust fan on61 injection valve stuck open71 condensate drain tube plugged and pool of water inbottom of chamber

Can't adjust set points or calibration

Steam generator not working

11 confirm all wire connections21 confirm software revision31 call Customer Service11 check if fill solenoid, injection valve, relief valve, floatswitch and relays are working - see schematic in Section9.021 check for water leaks around steamer

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Humidity unstable

31 verify that relays are working41 verify that float switch is working51 confirm that heater is workinga- power to coilb- is unit burnedlshorted out

61 pressure switch is working71 plurnblnq leak11 circulating fan failurea- motor failure or no voltage to motorb- fan not turningc- ducts blocked

21 relative humidity is lower than the unit can achieve atthat operating temperature, see Humidity Chart Section9.031 chamber leaksa- motor shaft sealsb- door sealc- air intake flapper

REFRIGERATIONHC5RONLYTemperature will not reach set point

Unit won't cool

Ice build up in chamber

11 assure that power is going to heating coils21 if the displacement is erratic, see if air is being circulated31 confirm that controller is calling for heat (check front panellight)41 if light not coming on, check control set point and High Limitset point51 confirm that fan is operating and airflow is not blocked61 RESET BY TURNING UNIT OFF AND ONIf the compressor is running:11 see if condenser is cold but free of ice21 be sure that fan is circulating air in the chamber and overthe compressor31 confirm proper sensor location and operation41 look for leaks in the chamber or around the door gasket51 assure ample room around the unit as described in Section4.261 adjust calibration on controller71 compare ambient specifications to specs in the manual81 call customer serviceIf compressor isn't running:91 check for non-operating solid state relay10 1 confirm that motor is operable11 1 check if motor has voltage to it12 1 see if refrigeration is running too hot and thermal cutoffactivated:a- dirty coil or poor circulationb- coil next to heat sourcec- ambient temperature too high

11 look for leak in door gasket

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Making noise

21 door open too often31 open container inside the chamber41 check tightness of seal around all chamber wire andplurnblnq access to outside11 assure that fan is not miss-aligned21 Steady internal clicking may be broken spring or valve -call Customer ServiceMECHANICAL

Glass door not sealing11 stretch and tuck gasket21 align clamps till they hold gasket tight31 check physical condition of gasket41 tighten door latch till it pulls glass in51 assure that gasket clamps are in original locationMotor doesn't move11 if shaft spins freely: check connections to motor and checkvoltage to motor;21 if shaft rubs or is frozen, relieve binding and retest1) Make sure that the fan or blower wheel is not contacting itshousing. Adjust the motor mounting bracket position to re-center the fan or blower wheel, if necessary.2) Check the fan or blower wheel for damage or out ofbalance condition. Replace the fan or blower wheel if it isdamaged or out of balance.3) Turn the motor shaft to make sure that it spins freely. If itbinds or the bearings make a rubbing or scrapping sound thenreplace the motor.

Motor makes noise

11 adjust hinge blocks or twist the door.21 Confirm that unit has not been damaged and body is notsquare.

Outer door not sealing

1 / 1 f leaking inside: dry chamber, run at temperature with dooropen. Check all seams with flashlight including front face.21 If leaking outside: dry out and see if leak repeats and findsource of leak. Sources may include: fittings that needtightening, condensation due to missing insulation or a leakdeveloped in humidity generator.

Water leaking

OTHERController on at all times - "Iocked-up"

Front panel displays are all off

11 Adjust set point to room temperature. If the light goes outbut is still heating, replace the solid state relay.21 turn unit off and on to reset31 if cannot change any condition on the front panel, callCustomer Service11 Check for wire damage.

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Unit or wall fuse/circuit breaker isblown

Unit will not turn on

Condensate appears on chamberwalls of humidity chamber

Contamination in chamber

1/ check wall power source2/ compare current draw and compare to specs on data plate3/ see what other loads are on the wall circuit

1/ check wall power source2/ check fuse/circuit breaker on unit or in wall3/ see if unit is on, e.g., fan or heater, and only the controlleris off/check all wiring connections, especially around the on/offswitch

1/ Some condensation may be normal2/ Minimize the movement of air around the unit and reducethe number of door openings1/ see cleaning procedure in Section 7.12/ develop and follow SOP for specific application; includedefinition of cleaning technique and maintenance schedule

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Section

PARTS LISTDescription 115V 220VAdjustable Feet 200129 200129Blower Wheel, Dehumidifier 2600504 2600504Chamber Fan Motor 4880508 4880507Chamber Gasket 3450534 3450534Chiller Assy, HC5R 9990568 9990714Circuit Breaker (20 amp) 1100500 1100500Cordset, European NA 1800500Dehumidifier Motor 210002 210001Door Control Thermostat 100001 100001Door Heater 103068 103068Element 120074 X1000510Float Switch, Vapor Generator 100639 100639Float Switch, Water Jacket 210004 210004Glass Door Assembly 9520572 9520572Gasket, 7 feet 3450534 3450534High Limit Thermostat 100001 100001Humidity Controller 1750553 1750554Humidity Sensor 4100503 4100503I/O (On/Off) Switch X1000124 X1000124Pilot Light Green 200021 200021Pilot Light Red 200020 200020Power Cord 1800516 101990Pressure Relief Switch 100655 100655Pressure Switch Vapor Generator 200108 200108Relay, Vapor Generator 891024 101613Solenoid Valve 103092 103309Solid State Relay 102162 102162Temperature Controller 1750549 1750550Vapor Generator 9990531 9990549

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UNIT SPECIFICATIONSThese units are 115V or 240V. See unit data plate for individual ratings.

Weight Shipping NetHC5 4101bs. 2501bs.HC5R 4251bs. 2701bs.

Dimensions Exterior WxDxH Interior WxDxH(in.) (in.)HC5 25 X 26.25 X 46.25 19.5 X 18.5 X 24.75HC5R 25 X 26.25 X 46.25 19.5 X 18.5 X 24.75

Capacity Cubic FeetHC5 5HC5R 5

Temperature Range Uniformity HumidityHC5 Amb. +10 to 70 0.35C at 3]oC 40-95%HC5R 10 to 70 0.35C at 3]oC 40-95%

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WIRE DIAGRAMHC5

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PLUMBING DIAGRAMHC5R

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vwr humiditychamber manual

Documents

ambient relative humidity

percent relative humidity

model hc5 humidity chamber

model hc5rl humidity

manual cover

withthe unit

water vapor

higher chamber temperatures