Shellab SHC28R-2 User Manual

HUMIDITY CHAMBER

SHC10 SHC10-2

SHC10R SHC10R -2

SHC28 SHC28-2

SHC28R SHC28R-2

PREVIOUSLY DESIGNATED AS : HC9 HC9-2/ HC9R HC9R-2

HC30 HC30-2 / HC30R HC30R-2

WITH MICRO PROCESSOR CONTROL

INSTALLATION AND OPERATION INSTRUCTIONS

Revised 01/2014

4861578

Sheldon Manufacturing Inc. P.O. Box 627 Cornelius, Oregon 97113

EMAIL: tech@Shellab.com INTERNET: http://www.Shellab.com/~Shellab

1-800-322-4897 (503) 640-3000 FAX (503) 640-1366

2

TABLE OF CONTENTS

SECTION 1.0 RECEIVING AND INSPECTION SECTION 2.0 GRAPHIC SYMBOLS SECTION 3.0 INSTALLATION AND FACILITIES REQUIREMENTS SECTION 4.0 CONTROL OVERVIEW SECTION 5.0 THEORY OF OPERATION SECTION 6.0 OPERATION SECTION 7.0 CHART RECORDER INSTALLATION SECTION 8.0 MAINTENANCE SECTION 9.0 TROUBLESHOOTING SECTION 10.0 PARTS LIST

UNIT SPECIFICATIONS SCHEMATIC

These units are Humidity Testing Incubators for professional, industrial or educational use where the preparation or testing of materials is done at approximately atmospheric pressure and no flammable, volatile or combustible materials are being heated. These units are not intended for hazardous or household locations or use.

3

RECEIVING AND INSPECTION

Section

Your satisfaction and safety require a complete understanding of this unit, including its proper function and operational characteristics. Read the instructions thoroughly and be sure that all operators are given adequate training before attempting to put the unit into service. NOTE: This equipment must be used only for its intended application; any alterations or modifications will void your warranty.

1.1 Inspection: The carrier, when accepting shipment, also accepts the responsibility for safe delivery and is liable for loss or damage claims. On delivery, inspect for visible exterior damage, note and describe on the freight bill any damage found, 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 and exterior. If any, the carrier will arrange for official inspection to substantiate your claim.

1.3 Return Shipment: Save the shipping crate until you're sure all is well. If for any reason you must return the unit, first contact your dealer for authorization and supply nameplate data, including the serial number. For information on where to contact Customer Service please see the manual cover.

1.4 Accessories: Make sure all of the equipment indicated on the packing slip is included with the unit. Carefully check all packaging before discarding. The SHC10 (HC9) and SHC10-2 (HC9-2) are equipped with 3 shelves, 12 shelf clips and 4 leveling feet. The SHC10R (HC9R) and SHC10R-2 (HC9R-2) are equipped with 3 shelves, 12 shelf clips and 4 leveling feet. The SHC28 (HC30) and SHC28-2 (HC30-2) are equipped with 6 shelves, 24 shelf clips and 4 leveling feet. The SHC28R (HC30R) and SHC28R-2 (HC30R-2) are equipped with 6 shelves, 24 shelf clips and 4 leveling feet.

4

GRAPHIC SYMBOLS

Section

Your incubator has been provided with a display of graphic symbols which is designed to help in identifying the use and function of the available user adjustable components.

2.1 Indicates that you should consult your manual for further description or discussion of a control or user item.

2.2 Indicates "Temperature".

2.3 Indicates "Over-temperature safety".

2.4 C Indicates "Degrees Centigrade".

2.5 Indicates "AC power ON".

2.6 Indicates "Humidifier Water Low".

2.7 Indicates I/ON and O/OFF.

2.8 Indicates "Relative Humidity".

2.9 %RH Indicates "Percent Relative Humidity".

2.10 Indicates "Potential Shock Hazard" behind this protective partition.

2.11 Indicates "Protective Earth Ground".

2.12 Indicates “Unit should be recycled” (Not disposed of in land-fill)

5

INSTALLATION

Section

Local city, county or other ordinances may govern the use of this equipment. If you have any questions about local requirements, please contact the appropriate local agency. Installation may be performed by the end user. It is unnecessary for this unit to be installed by a technician.

Under normal circumstances this unit is intended for use inside, at room temperatures between 5°C and 40°C, at no greater than 75% relative humidity (at 25°C) and with a supply voltage that does not vary by more than 10%. Customer Service should be contacted for operating conditions outside of these limits.

3.1 Power Source: See the unit's serial data plate for voltage, cycle, wattage and ampere

requirements. If matched to your power source, plug the power cord into a grounded outlet. VOLTAGE SHOULD NOT VARY MORE THAN 10% FROM THE SERIAL PLATE RATING. These units are intended for 50/60 Hz application. A separate circuit is recommended to preclude loss of product due to overloading or circuit failure. Note that electrical supply to the unit must conform to all local and national electrical codes.

3.2 Location: In selecting a site, consider all conditions which may affect performance, such as

extreme heat from steam radiators, stoves, ovens, autoclaves, etc. Avoid direct sun, fast moving air currents, heating/cooling ducts and high-traffic areas. To ensure air circulation around the unit, allow a minimum of 5cm between the unit and any walls or partitions which might obstruct free air flow.

Caution: Position and level the apparatus before connecting to water supply.

3.3 Lifting and Handling: These units are heavy and care should be taken to use appropriate

3.4 Leveling: The unit must sit level and solidly. Leveling feet (supplied) are to be installed at

3.5 Cleaning: The incubator was cleaned at the factory, but not sterilized. It should be

lifting devices that are sufficiently rated for these loads. Units should only be lifted from their bottom surfaces. Doors, handles and knobs are not adequate for lifting or stabilization. The unit should be completely restrained from tipping during lifting or transport. All moving parts, such as shelves and trays should be removed and doors need to be positively locked in the closed position during transfer to prevent shifting and damage.

the holes in the base of the unit. Turn them counterclockwise to raise level. If the unit must be moved, turn the leveling feet in all the way to prevent damage.

disinfected prior to use. Remove all interior parts including shelves and shelf assembles. Clean the chamber with a disinfectant that is appropriate to your application. Similar periodic cleaning is strongly recommended. DO NOT USE chlorine-based bleaches or abrasives as this will damage the stainless steel interior. DO NOT USE spray cleaners that might leak through openings and cracks and get on electrical parts or that may contain solvents that will harm the coatings. A similar periodic cleaning is recommended.

WARNING: Never clean the unit with alcohol or flammable cleaners with the unit connected to the electrical supply. Always disconnect the unit form the electrical service when cleaning

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and assure all volatile or flammable cleaners are evaporated and dry before reattaching the unit to the power supply.

3.6 Humidification Water Supply: On the back of the body there is a 1/4" compression fitting

marked WATER IN. This fitting should only be plumbed to a DISTILLED WATER supply source. Please note that when attaching the water supply line to the fitting on the unit, two wrenches must be used: one to hold the fitting from turning in the panel, while using the other to tighten the compression fitting. The supply source should be gravity fed or pressure can be regulated to no more than 2 psi with a water pressure regulator valve.

Deionized or tap water should NOT be used. They will have a detrimental effect on the unit causing corrosion or obstructions and premature failure of this assembly, and VOID your warranty.

3.7 Fill the Vapor Generator: It takes approximately 880cc (.88 Liter) to initially fill the vapor

generator, after that a continuous supply is required to maintain the operating level. If the supply is disconnected or in some other manner cut off from the vapor generator, the level will drop and the float switch in the vapor generator will shut the vapor generator off.

3.8 Water Drain Line: On the external back of the test chamber, at the bottom, there is a

copper drain line for excess condensation to drain from the bottom of the chamber. Ideally, this line would be run into a floor drain, but could be run to a shallow pan with an automatic sump pump. Under no circumstances should this line be plugged. If the line is plugged the condensation will pool on the floor of the test chamber and flow out when the door is opened.

3.9 Vapor Trap: Located in the water drain line, this must be filled with approximately ½ cup of

DISTILLED WATER. This will prevent the chamber humidity from escaping and still allow any condensation to drain away. If the unit is not used for a long period of time this trap should be flushed and refilled with distilled water.

3.10 Pressure Relief Valve: Marked RELIEF, this valve is located just to the right of the

WATER IN fitting at the back of the unit. It provides pressure relief for the vapor generator system. The cracking pressure is 5. psi. The protective shipping cap must be removed before operation as this valve should never be plugged or covered.

7

CONTROL OVERVIEW

Section

4.1 Power Switch: The main power I/O (On/Off) switch controls all power to the unit, and must be in the

I/On position before any systems are operational.

4.2 High Limit Safety Thermostat: This control is marked SAFETY and is adjacent to the power switch.

It is completely independent of the Main Temperature Controller and guards against any failure which would allow the temperature to rise past set point. If the temperature rises to the safety set point, the Safety takes control of the heating element and allows continued use of the unit until the problem can be resolved or service can be arranged. Please note that it is not recommended that the unit be allowed to operate using only the Safety Thermostat as temperature uniformity will suffer.

4.3 High Limit Indicator: This pilot light, located on the Main Control Panel just above the word

SAFETY, comes ON when the High Limit Safety Thermostat is activated. Under normal operating conditions this pilot light should never come on.

4.4 Main Temperature Controller: This control is marked C and consists of the digital display and

UP/DOWN arrow pads for inputting set point temperatures and calibration.

4.5 Heating Indicator: This pilot light is marked HEATING and is on when the heating elements have

been activated to reach and maintain set point.

4.6 Relative Humidity Controller: This control is marked % RH, and consists of the digital display and

UP/DOWN arrow pads for inputting set point percents and calibration. The Relative Humidity Controller maintains internal humidity through a direct set point of 1% increments and the digital display indicates in 1% increments. This control is solid state and proportional. The controller utilizes a solid state thin film capacitive humidity sensor to sense the humidity within the chamber.

4.7 Injection Indicator: This pilot light is marked INJECTION and is on when water vapor is being

injected into the chamber from the vapor generator.

4.8 Water Low Indicator: This pilot light is marked WATER LOW and is on when the water level drops

in the vapor generator. The float switch is tripped, the vapor generator is turned off, and water is released from the supply. When the vapor generator becomes full, the float switch is tripped again, the vapor generator is turned on, and the WATER LOW pilot light turns off.

4.9 Chart Recorder: Adjacent to the control panel is a cover plate that can be removed if a chart

recorder is to be installed. Chart recorders are available from your dealer. For further information see Section 7.0, Chart Recorder Installation.

8

THEORY OF OPERATION

Section

These humidity chambers are designed to maintain temperature and relative humidity at set points controllable by the operator at the front panel. Air is constantly being circulated through the chamber, monitored for comparison to set points and treated if necessary.

On all units, heating is done by electric resistance heaters that turn off and on for temperature control. On the R units with cooling (SHC10R (HC9R), SHC10R -2 (HC9R-2), SHC28R (HC30R), SHC28R-2 (HC30R-2)) the refrigeration compressor is continuously active.

Chamber humidification is achieved by means of a low-pressure vapor generator injecting water vapor into the chamber through a small orifice. The water vapor is introduced into the chamber at the blower discharge.

It should be noted that even though the unit does incorporate an exhaust system to assist in achieving humidity close to ambient, the unit has no way of achieving humidity lower than that which the ambient environment will allow.

9

OPERATION

Section

It is recommended that your unit be allowed to reach operating temperature before engaging the humidifying system. This requires setting the RH set point to 0 (zero) until the unit is at operating temperature. See Section 6.6 for changing the RH set point.

6.1 Turn the power switch to the I/ON position. Turn the High Limit Safety thermostat to its maximum

position, clockwise and place the shelves in the chamber.

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 the thermometer to a petri dish is a method that works well.

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 digital display will start to blink from bright to dim. While blinking, the display is showing the set point, which can be changed to the desired temperature by pushing the UP or DOWN arrow pads. If the arrow pads are not pushed within five (5) seconds, the display will stop blinking and will read the temperature in the chamber. Allow at least twenty- four (24) hours for the temperature to stabilize. It is recommended that set point adjustments are made again after the calibration procedure is completed.

6.4 Calibrating Temperature Control: Compare the reading on the reference thermometer with the

digital display. If there is an unacceptable difference, put the display into calibrate mode by pressing both the UP and DOWN arrow pads at the same time and holding them in until the two outside decimal points start to flash. When the decimal points are flashing, the display can be calibrated to match the reference thermometer by pressing the UP or DOWN arrow pad until the display reads the correct value. Allow the unit to stabilize again until five (5) consecutive readings at five (5) minute intervals read a constant value.

6.5 Set the High Limit Safety Thermostat: After the Main Temperature Control is set and calibrated the

6.6 Set Humidity Control: First, place a reference hygrometer in the chamber where it can be easily

6.7 Calibrating Humidity Control: Compare the reading on the reference hygrometer with the digital

High Limit needs to be set. First turn the control knob counterclockwise just until the Safety Indicator light comes on. Then slowly turn the knob clockwise just until the Safety Indicator light goes off. The Safety thermostat should now be set approximately ten (10) degrees above the Main Temperature Control set point.

viewed. To enter set point mode on the Humidity Control push and release either the UP or DOWN arrow pad and the digital display will start to blink from bright to dim. While blinking, the display is showing the set point which can be changed using the UP or DOWN arrow pads. If the arrow pads are not pressed within five (5) seconds, the display will revert to showing the process or actual parameter within the chamber. Allow at least twenty four (24) hours for the unit to stabilize.

CAUTION: When opening the door there is a danger from the steam/high humidity escaping. The door should be opened a small amount (2" - 3") then paused until the steam cloud dissipates.

display. If there is an unacceptable difference, put the display into calibrate mode by pressing both the UP and DOWN arrow pads at the same time until the display begins to blink. When the display is blinking it can be calibrated to match the reference hygrometer by using the Up/Down arrow pads until it reads the correct value. If the arrow pads are not pressed within five (5) seconds, the display will revert to showing the process or actual parameter within the chamber. Allow the unit to stabilize again.

10

CHART RECORDER INSTALLATION

Section

Please note that the following information is a general guide for installation. Before attempting installation please read the instructions provided with your chart recorder thoroughly for specific installation instructions.

NOTE: Unplug unit from the power supply before installing the Chart Recorder.

7.1 Remove cover for Chart Recorder, located on the right side of control panel.

7.2 Remove steel plate from the back of the Chart Recorder.

7.3 Open the front glass door on the Chart Recorder and loosen the two screws on the face of

the recorder. (Screws are on the top and bottom right of the face.)

7.4 Inside the unit, behind the cover plate, you will see two wires that say “Recorder Power”.

Cut off the butt connectors and strip the wires about 3/8 inch.

7.5 Put the Recorder Power wires through the hole in back of your Chart Recorder and connect

the Recorder Power wires to the terminal inside.

7.6 Run the Chart Recorder probe through the probe hole and slide into probe clips provided

inside the chamber of the unit.

7.7 Inside the Chart Recorder you will see a piece of masking tape and a metal clip; remove

these; screw face bolts back in; screw in the Chart Recorder; shut the glass door on the Chart Recorder; plug unit into the power supply; then turn on your unit.

7.8 In removing or mounting a chart, the pen arm and stylus must be raised by pressing on the

7.9 To remove and replace a chart, unscrew the hub knob and swing it 90 clockwise, or to the

7.10 Now the pen arm may be gently released and the chart knob rotated counterclockwise back

tab at the uppermost end of the arm. Even if the recorder is not to be used, a fresh chart should be mounted or some sort of padding placed under the stylus to protect the sapphire tip.

3 o’clock position. Press the upper tab on the pen arm; lift the chart forward off the hub and slide down and away. DO NOT release the pen arm, but install a new chart.

to the hub. Align the proper chart time with chart plate index.

11

MAINTENANCE

Section

NOTE: Prior to any maintenance or service on this unit, disconnect power cord from the power supply. Service of any electrical components should only be performed by personnel who are qualified and familiar with the use and function of these components.

8.1 Clean the chamber interior. Remove and clean shelves and shelf clips on a periodic

basis using a disinfectant that is suitable to your application. DO NOT USE chlorine-based bleaches or abrasives as this will damage the stainless steel interior. DO NOT USE spray cleaners that might leak through openings and cracks and get on electrical parts or that may contain solvents that will harm the coatings. A similar periodic cleaning is recommended.

WARNING: Never clean the unit with alcohol or flammable cleaners with the unit connected to the electrical supply. Always disconnect the unit form the electrical service when cleaning and assure all volatile or flammable cleaners are evaporated and dry before reattaching the unit to the power supply.

8.2 When washing interior of unit, handle the gasket carefully, as not to impair the

positive seal. NOTE: DO NOT REMOVE TEFLON TAPE FROM DOOR, IT IS

THERE TO PREVENT THE DOOR FROM STICKING TO THE GASKET.

8.3 All electrical components are accessible from the top of the unit. Remove nuts

8.4 There is NO maintenance required on the Main Temperature Controller, Over

8.5 If the chamber fails to maintain temperature, review Section 8.0 before calling for

around edge of top and lift top off.

Temperature Safety, Main Temperature Probe, Humidity Control, or Humidity Sensor.

service.

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TROUBLESHOOTING

TEMPERATURE

Temperature too high – display and actual match

1/ controller set too high-see see section 6.3 2/ controller failed on – call Customer Service 3/ wiring error – call Customer Service

DISPLAY reads "HI" or "400"+

probe is unplugged, is broken or wire to sensor is broken – trace wire from display to probe; move wire and watch display to see intermittent problems

Chamber temp goes way over set point and then settles to set point

Recalibrate – see section 6.4

Temperature too low – display and actual match

1/ high limit set too low – see section 6.5 2/ controller set too low – see section 6.3 3/ unit not recovered from door opening – wait for display to stop changing 4/ unit not recovered from power failure or being turned off – incubators will need 24 hours to warm up and stabilize 5/ element failure – see if heating light is on; compare current draw to data plate 6/ controller failure – confirm with front panel lights that controller is calling for heat 7/ high limit failure – confirm with front panel lights that Safety is operating correctly 8/ wiring problem – check all functions and compare wiring to owners manual especially around any areas recently worked on 9/ loose connection – check shadow box for loose connections

Display reads "LO"

1/ sensor is plugged in backwards – reverse sensor wires to controller 2/ if ambient temperature is lower than range of unit – compare set points and ambient temperature to rated specifications in owners manual

Unit will not heat over some temperature that is below set point

1/ confirm that fan is moving and that amperage and voltage match data plate – check fan motor motion in shadow box and feel for air movement in chamber 2/ confirm that set point is set high enough –turn Safety Thermostat all the way clockwise and see if heating light or safety light comes on 3/ check connections to sensor 4/ check calibration – using independent thermometer, follow instructions in section

6.4

Unit will not heat up at all

Section

Always make a visual inspection of the unit and control console when troubleshooting. Look for loose or disconnected wires which may be the source of the trouble.

The incubator is designed so that no internal electrical servicing should be required under normal conditions. If electrical servicing is necessary, it should be performed by qualified service personnel. For information on where to reach technical service please see the manual cover. FOR PERSONAL SAFETY, ALWAYS DISCONNECT THE POWER BEFORE SERVICING.

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1/ verify that controller is asking for heat by looking for Heating light – if pilot light is not on continuously, there is a problem with the controller 2/ check amperage – amperage should be virtually at maximum rated (data plate) amperage 3/ do all controller functions work? 4/ is the Safety Thermostat set high enough? – for diagnostics, should be turned fully CCW with the pilot light never on 5/ has the fuse/circuit breaker blown?

Indicated chamber temperature unstable

1/ ±0.1 may be normal 2/ is fan working? – remove top panel and verify movement of cooling fan in center of shadow box 3/ is ambient radically changing – either door opening or room airflow from heaters or air conditioning ? – stabilize ambient conditions 4/ 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 controls 5/ calibration sensitivity – call Customer Service 6/ high limit set too low – be sure that Safety is more than 5 degrees over desired set point; check if Safety pilot is on continuously; turn controller knob completely clock-wise to see if problem solved then follow instructions in section 6.4 7/ electrical noise – remove nearby sources of RFI including motors, arcing relays or radio transmitters 8/ bad connection on temperature sensor or faulty sensor – check connectors for continuity and mechanical soundness while watching display for erratic behavior; check sensor and wiring for mechanical damage 9/ bad connections or faulty solid state relay – check connectors for mechanical soundness and look for corrosion around terminals or signs of arcing or other visible deterioration 10/ Water jacket empty or low – check indicator warning light or water level at fill port in back of unit.

Will not maintain set point

1/ assure that set point is at least 5 degrees over ambient 2/ see if ambient is fluctuating

Display and actual (from reference thermometer) don’t match

1/ calibration error – see operator’s manual 2/ temperature sensor failure – evaluate if pilot light is operating correctly 3/ controller failure – evaluate if pilot light is operating correctly 4/ allow at least two hours to stabilize 5/ see if reference thermometer is certified

Reference thermometer does not match digital display

See Temp-10

Can't adjust set points or calibration

1/ turn entire unit off and on to reset 2/ if repeatedly happens, call Customer Service

Calibrated at one temperature, but not at another

This can be a normal condition when operating temperature varies widely, e.g., 30C°. For maximum accuracy, calibration should be done at close to the set point temperature.

HUMIDITY LEVEL

Can't achieve rated humidity/temp

1/ relative humidity sensor or controller failure 2/ check for bad door seal 3/ check for leaking water around steamer 4/ confirm a sufficient and distilled water source 5/ calibrate humidity sensor with independent reference 6/ assure that pressure relief valve is closed 7/ assure that steamer is working (see Humid-4) 8/ leaks in air intake flapper

Can’t decrease humidity to set point

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1/ assure that exhaust fan is working 2/ assure that exhaust fan blower casing is free of pooled water 3/ check solid state relay 4/ set point has to be 10 percentage points below reading on control to turn exhaust fan on 5/ injection valve stuck open 6/ condensate drain tube plugged and pool of water in bottom of chamber

Can't adjust set points or calibration

1/ confirm all wire connections 2/ confirm software revision 3/ call Customer Service

Steam generator not working

1/ check if fill solenoid, injection valve, relief valve, float switch and relays are working – see schematic in manual 2/ check for water leaks around steamer 3/ verify that relays are working 4/ verify that float switch is working 5/ confirm that heater is working a- power to coil b- is unit burned/shorted out 6/ pressure switch is working 7/ plumbing leak

Humidity unstable

1/ circulating fan failure a- motor failure or no voltage to motor b- fan not turning c- ducts blocked 2/ relative humidity is lower than the unit can achieve at that operating temperature 3/ chamber leaks a- motor shaft seals b- door seal c- air intake flapper

REFRIGERATION

SHC10Rs (HC9Rs) & SHC28Rs (HC30Rs) ONLY

Temperature will not reach set point

1/ assure that power is going to heating coils 2/ if the displacement is erratic, see if air is being circulated 3/ confirm that controller is calling for heat (check front panel light) 4/ if light not coming on, check control set point and High Limit set point 5/ confirm that fan is operating and airflow is not blocked 6/ reset by turning unit off and on

Unit won't cool

If the compressor is running: 1/ see if condenser is cold but free of ice 2/ be sure that fan is circulating air in the chamber and over the compressor 3/ confirm proper sensor location and operation 4/ look for leaks in the chamber or around the door gasket 5/ assure ample room around the unit as described in manual –5cm minimum 6/ adjust calibration on controller 7/ compare ambient specifications to specs in the manual 8/ call customer service If compressor isn’t running: 9/ check for non-operating solid state relay 10/ confirm that motor is operable 11/ check if motor has voltage to it 12/ see if refrigeration is running too hot and thermal cutoff activated: a- dirty coil or poor circulation b- coil next to heat source c- ambient temperature too high

Making noise

1/ assure that fan is not miss-aligned 2/ Steady internal clicking may be broken spring or valve – call Customer Service

MECHANICAL

15

Door not sealing

1/ adjust hinge blocks or twist the door. 2/ Confirm that unit has not been damaged and body is not square.

Motor doesn't move

1/ if shaft spins freely: check connections to motor and check voltage to motor; 2/ if shaft rubs or is frozen, relieve binding and retest

Motor makes noise

1) Make sure that the fan or blower wheel is not contacting its housing. 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 of balance condition. Replace the fan or blower wheel if it is damaged or out of balance.

3) Turn the motor shaft to make sure that it spins freely. If it binds or the bearings make a rubbing or scrapping sound then replace the motor.

Water leaking

1/ If leaking inside: dry chamber, run at temperature with door open. Check all seams with flashlight including front face. 2/ If leaking outside: dry out and see if leak repeats and find source of leak. Sources may include: fittings that need tightening, condensation due to missing insulation or a leak developed in humidity generator.

OTHER

Controller on at all times - "locked-up"

1/ Adjust set point to room temperature. If the light goes out but is still heating, replace the solid state relay. 2/ turn unit off and on to reset 3/ if cannot change any condition on the front panel, call Customer Service

Front panel displays are all off

1/ Check for wire damage.

Unit or wall fuse/circuit breaker is blown

1/ check wall power source 2/ compare current draw and compare to specs on data plate 3/ see what other loads are on the wall circuit

Unit will not turn on

1/ check wall power source 2/ check fuse/circuit breaker on unit or in wall 3/ see if unit is on, e.g., fan or heater, and just controller is off 4/ check all wiring connections, esp. around the on/off switch

Condensate appears on chamber walls of humidity chamber

1/ Some condensation may be normal 2/ Minimize the movement of air around the unit and reduce the number of door openings

Contamination in chamber

1/ see cleaning procedure in operator’s manual 2/ develop and follow SOP for specific application; include definition of cleaning technique and maintenance schedule

16

PARTS LISTS

DESCRIPTION

SHC10 (HC9)

115V

SHC10-2 (HC9-2)

220V

SHC10R (HC9R)

115V

SCH10R-2

(HC9R-2) 220V

Adjustable Feet

2700500

Blower Wheel, Aluminum

2600535

Blower Wheel, Plastic

2600544

Circuit Breaker

1100500

Element

2350563

2350554

2350562

2350554

Fan Blade

2600551

Fan Motor

4880564

4880563

4880564

4880563

Float Switch

7850563

Humidity Control

1750553

17560554

1750553

17560554

Humidity Sensor

4100504

Motor U.E.C.

4880512

4880572

4880512

ON/OFF Switch

7850570

Pilot Light, Green

4650554

Pilot Light, Red

4650553

Power Cord

1800516

1800537

1800516

1800537

Power Cord - European

NA

1800541

NA

1800541

Power Exhaust Assembly

9990559

9990562

9990559

9990562

Pressure Relief Valve

8600567

Pressure Switch

7850574

Refrigeration System

NA

9990569

9990587

Relay

7030536

7030528

7030536

7030528

Shelf

5120525

Shelf Clip (4/Shelf)

1250512

Solenoid Valve

8600576

8600578

8600576

8600578

Temperature Controller

1750549

1750550

1750549

1750550

Thermostat, High Limit

1750861

Vapor Generator Assembly

9990663

9990664

9990663

9990664

Vapor Generator Element

2350520

2350521

2350520

2350521

Section

10

SHC10 and SHC10-2 (HC9 and HC9-2) SHC10R and SHC10R-2 (HC9R and HC9R-2)

17

SHC28 (HC30) and SHC28-2 (HC30R)

DESCRIPTION

SHC28 (HC30)

115V

SHC28-2 (HC30-2)

220V

SHC28R (HC30R)

115V

SHC28R-2 (HC30R-2)

220V

Blower Wheel, Aluminum

2600535

Blower Wheel, Plastic

2600544

Element, Main

2350563

2350554

2350563

2350554

Fan Blower Wheel

2600504

Fan Motor

4880564

4880563

4880564

4880563

Float Switch

7850563

Humidity Control

1750553

1750554

1750553

17560554

Humidity Sensor

4100504

Motor U.E.C.

4880504

ON/OFF Switch

7850570

Pilot Light, Green

4650554

Pilot Light, Red

4650553

Power Cord

1800529

1800537

1800517

1800537

Power Cord European

NA

1800541

NA

1800541

Power Exhaust Assembly

9990559

9990562

9990559

9990562

Power Relay

7030533

Pressure Relief Valve

8600567

Pressure Switch

7850574

Refrigeration System

NA

9990570

9990588

Relay

7030536

7030528

7030536

7030528

Shelf

9750531

Shelf Clip (4/Shelf)

1250512

Solenoid Valve

8600576

8600578

8600576

8600578

Temperature Controller

1750549

1750550

1750549

1750550

Thermostat, RS

1750861

Vapor Generator Assy.

9990643

9990644

9990643

9990644

Vapor Generator Element

2350520

SHC28R (HC30R) and SHC28R-2 (HC30R-2)

18

UNIT SPECIFICATIONS

Weight

Shipping

Net

SHC10 SHC10-2

(HC9 HC9-2)

480 lbs.

341 lbs.

SHC10R SHC10R-2

(HC9R HC9R-2)

515 lbs.

401 lbs.

SHC28 SHC28-2

(HC30 HC30-2)

630 lbs.

460 lbs.

SHC28R SHC28R-2

(HC30R HCR30-2)

670 lbs.

460 lbs.

Dimensions

Exterior WxDxH (in.)

Interior WxDxH (in.)

SHC10 SHC10-2

(HC9 HC9-2)

44 x 32.75 x 57

28 x 20.25 x 26

SHC10R SHC10R-2

(HC9R HC9R-2)

44 x 32.75 x 57

28 x 20.25 x 26

SHC28 SHC28-2

(HC30 HC30-2)

42.5 x 37 x 85

30.25 x 26 x 62

SHC28R SHC28R-2

(HC30R HCR30-2)

42.5 x 37 x 85

30.25 x 26 x 62

Capacity

Cubic Feet

SHC10 SHC10-2

(HC9 HC9-2)

8.5

SHC10R SHC10R-2

(HC9R HC9R-2)

8.5

SHC28 SHC28-2

(HC30 HC30-2)

28

SHC28R SHC28R-2

(HC30R HCR30-2)

28

Temperature

Range

Humidity

SHC10 SHC10-2

(HC9 HC9-2)

40 to 70

40-95%

SHC10R SHC10R-2

(HC9R HC9R-2)

10 to 70

40-95%

SHC28 SHC28-2

(HC30 HC30-2)

40 to 70

40-95%

SHC28R SHC28R-2

(HC30R HCR30-2)

10 to 70

40-95%

RELATIVE HUMIDITY CHART

2

1 2

4

FAN

1 2

4

12VDC

POWER SUPPLY

6750507

OUT IN

RH SENSOR

4100504

1 2

3

4

FAN

BM

BLUE

WHITE

RED

BLACK

BLOWER

MOTOR 4880504

GREEN LIGHTED SWITCH 7850570

WATER LOW

INDICATOR

4650553

STEAMER RELAY

7030536

HEATER REDUCTION

RELAY

7030536

220° LIMIT

1750615

PRESSURE SWITCH

7850574

FLOAT SWITCH

7850563

WATER FILL

SOLENOID

8600576

STEAMER HEATER

2350524

600V 6A

DIODE

2050500

QUENCHARK 7830507

CONDENSING UNIT

7010521

TEMPERATURE

CONTROL

1750549

OTL LIGHT

4650553

75°C LIMIT

1750860

CHILLER TANK HEATER

17.8Ω 120V 800W

CHAMBER HEATER

57Ω 120V 250W

HEAT LIGHT

4650554

OTL CONTROL

1750861

45°C COMPRESSOR

CUT OFF

1750862

RH CONTROL

1750553

SOLID

STATE RELAY

7030533

HUMIDIYT EXHAUST

FAN

4880564

HUMIDITY

INJECTION SOLENOID

8600576

HUMIDITY LIGHT

4650554

13 14

5

1

9

1

5

BLACK

WHITE

BLACK

CP

CHART RECORDER

CIRCULATING PUMP

6700563

BLACK

WHITE WHITE

TERMINAL BLOCK 5 THROUGH 8

TERMINAL BLOCK 1 THROUGH 4

P2 P3

P13

P8

P20

P5

P12

P7

P11

P18

P21

P14

P17

P24

P19

P1 P14

P20

P19

P24

P17

P2

P15

P13

P8

P3

P21

P18

P11

P16

P22

P12

P5

P9

P7

P4

P1

ORANGE

CURCUIT BREAKER

1100500

POWER CORD

1800517

BLACK

BLACK 18G

BLACK

YELLOW

WHITE

RED RED RED

WHITE

RED HT

WHITE HT

BLUE

BLACK

BROWN

WHITE

RED

BLACK HT

WHITE HT

WHITE

WHITE 18G

RED 22G BLACK 22G

P10

WIRING DIAGRAM

SHC10 (HC9)

(9851449)

3

1 2

4

12VDC

POWER SUPPLY

6750507

OUT IN

RH SENSOR

4100504

1 2

3

4

FAN

BM

BLUE

WHITE

RED

BLACK

BLOWER

MOTOR 4880504

GREEN LIGHTED SWITCH 7850570

WATER LOW

INDICATOR

4650553

STEAMER RELAY

7030528

220° LIMIT

1750615

PRESSURE SWITCH

7850574

FLOAT SWITCH

7850563

WATER FILL

SOLENOID

8600578

STEAMER HEATER

2350533

QUENCHARK 7830507

TEMPERATURE

CONTROL

1750550

OTL LIGHT

4650553

CHAMBER HEATER

250V 750W

2350554

HEAT LIGHT

4650554

OTL CONTROL

1750861

RH CONTROL

1750554

SOLID

STATE RELAY

7030533

HUMIDIYT EXHAUST

FAN

4880564

HUMIDITY

INJECTION SOLENOID

8600578

HUMIDITY LIGHT

4650554

BLACK

WHITE

BLACK

CHART RECORDER

BLACK

WHITE WHITE

TERMINAL BLOCK 5 THROUGH 8

TERMINAL BLOCK 1 THROUGH 4

P2 P3

P13

P8

P20

P5

P12

P7

P11

P18

P14

P17

P24

P1 P14

P19

P24

P17

P2

P13

P8

P3

P18

P11

P16

P22

P12

P5

P9

P7

P4

P1

ORANGE

P10

2800503

EMI

FILTER

POWER

FUSED

INLET

4200505

WHITE WHITE

5

3

1

7 8

BLACK

WHITE

YELLOW

BLACK 18G

WHITE WHITE

RED

BLACK HT

BLUE

WHITE

RED

RED HT

BLACK WHITE

WHITE HT

WHITE

WHITE HT

WHITE 18G

BROWN

RED 22G

BLACK 22G

WIRING DIAGRAM

SHC10-2 (HC9-2)

(9851450)

4

1 2

4

FAN

1 2

4

12VDC

POWER SUPPLY

6750507

OUT IN

RH SENSOR

4100504

1 2

3

4

FAN

BM

BLUE

WHITE

RED

BLACK

BLOWER

MOTOR

4880504

GREEN LIGHTED SWITCH 7850570

WATER LOW

INDICATOR

4650553

STEAMER RELAY

7030536

220° LIMIT

1750615

PRESSURE SWITCH

7850574

FLOAT SWITCH

7850563

WATER FILL

SOLENOID

8600576

STEAMER HEATER

2350532

QUENCHARK 7830507

CONDENSING UNIT

7010521

TEMPERATURE

CONTROL

1750549

OTL LIGHT

4650553

75°C LIMIT

1750860

CHILLER TANK HEATER

17.8Ω 120V 800W

CHAMBER HEATER

57Ω 120V 250W

HEAT LIGHT

4650554

OTL CONTROL

1750861

45°C COMPRESSOR

CUT OFF

1750862

RH CONTROL

1750553

SOLID

STATE RELAY

7030533

HUMIDIYT EXHAUST

FAN

4880564

HUMIDITY

INJECTION SOLENOID

8600576

HUMIDITY LIGHT

4650554

13 14

9

1

5

BLACK

WHITE

BLACK

CP

CHART RECORDER

CIRCULATING PUMP

6700563

BLACK

WHITE WHITE

TERMINAL BLOCK 5 THROUGH 8

TERMINAL BLOCK 1 THROUGH 4

P2 P3

P13

P8

P20

P5

P12

P7

P11

P18

P21

P14

P17

P24

P19

P1 P14

P20

P19

P24

P17

P2

P15

P13

P8

P3

P21

P18

P11

P16

P22

P12

P5

P9

P7

P4

P1

ORANGE

CURCUIT BREAKER

1100500

POWER CORD

1800517

BLACK

BLACK 18G

BLACK

YELLOW

WHITE

RED RED

WHITE

RED HT

WHITE HT

BLUE

BROWN

WHITE

RED

BLACK HT

WHITE HT

WHITE

WHITE 18G

RED 22G BLACK 22G

P10

WIRING DIAGRAM

SHC10R (HC9R)

(9851451)

5

WIRING DIAGRAM

2800503

EMI

FILTER

1 2

4

FAN

1 2

4

12VDC

POWER SUPPLY

6750507

OUT IN

RH SENSOR

4100504

1 2

3

4

FAN

BM

BLUE

WHITE

RED

BLACK

BLOWER

MOTOR 4880504

POWER FUSED

INLET

4200505

GREEN LIGHTED SWITCH 7850570

WATER LOW

INDICATOR

4650553

STEAMER RELAY

7030528

220° LIMIT

1750615

PRESSURE SWITCH

7850574

FLOAT SWITCH

7850563

WATER FILL

SOLENOID

8600578

STEAMER HEATER

2350533

QUENCHARK 7830507

CONDENSING UNIT

7010543

TEMPERATURE

CONTROL

1750550

OTL LIGHT

4650553

75°C LIMIT

1750860

CHILLER TANK HEATER

67Ω 240V 800W

CHAMBER HEATER

201Ω 240V 250W

HEAT LIGHT

4650554

OTL CONTROL

1750861

45°C COMPRESSOR

CUT OFF

1750862

RH CONTROL

1750554

SOLID

STATE RELAY

7030533

HUMIDIYT EXHAUST

FAN

4880563

HUMIDITY

INJECTION SOLENOID

8600578

HUMIDITY LIGHT

4650554

7 8

5

1

3

BLACK

WHITE WHITE

WHITE

BLACK

CP

CHART RECORDER

CIRCULATING PUMP

6700564

BLACK

WHITE WHITE

TERMINAL BLOCK 5 THROUGH 8

TERMINAL BLOCK 1 THROUGH 4

P2 P3

P13

P8

P20

P5

P12

P7

P11

P18

P21

P14

P17

P24

P19

P1 P14

P20

P19

P24

P17

P2

P15

P13

P8

P3

P21

P18

P11

P16

P22

P12

P5

P9

P7

P4

P1

ORANGE

BLACK 18G

YELLOW

RED RED

BLACK

BLUE

BROWN

BLACK HT

WHITE

WHITE HT

WHITE

RED RED

RED HT

WHITE HT

WHITE

RED 22G

BLACK 22G

WHITE

BROWN

WHITE HT

WHITE

SHC10R-2 (HC9R-2)

(9851452)

6

WIRING DIAGRAM

1 2

4

12VDC

POWER SUPPLY

6750507

OUT IN

RH SENSOR

4100504

1 2

3

4

FAN

BM

BLUE

WHITE

RED BLACK

BLOWER

MOTOR

4880504

GREEN LIGHTED SWITCH 7850570

WATER LOW

INDICATOR

4650553

STEAMER RELAY

7030536

220° LIMIT

1750615

PRESSURE SWITCH

7850574

FLOAT SWITCH

7850563

WATER FILL

SOLENOID

8600576

STEAMER HEATER

2350524

QUENCHARK 7830507

TEMPERATURE

CONTROL

1750549

OTL LIGHT

4650553

CHAMBER HEATER

120V 750W

2350563

HEAT LIGHT

4650554

OTL CONTROL

1750861

RH CONTROL

1750553

SOLID

STATE RELAY

7030533

HUMIDIYT EXHAUST

FAN

4880564

HUMIDITY

INJECTION SOLENOID

8600576

HUMIDITY LIGHT

4650554

13 14

BLACK

WHITE

BLACK

CHART RECORDER

BLACK

WHITE WHITE

POWER CORD

1800529

CIRCUIT BREAKER

1100500

9

1

5

TERMINAL BLOCK 5 THROUGH 8

TERMINAL BLOCK 1 THROUGH 4

P2 P3

P13

P8

P20

P5

P12

P7

P11

P18

P14

P17

P24

P1 P14

P19

P24

P17

P2

P13

P8

P3

P18

P11

P16

P22

P12

P5

P9

P7

P4

P1

ORANGE

P10

WHITE

YELLOW

BLACK 18G

RED RED RED HT

BLUE

WHITE

RED

BLACK HT

BLACK

WHITE

WHITE HT

WHITE

WHITEWHITE

WHITE HT

WHITE 18G

RED 22G

BLACK 22G

BROWN

SHC28 (HC30)

(9851453)

7

1 2

4

12VDC

POWER SUPPLY

6750507

OUT

IN

RH SENSOR

4100504

1 2

3

4

FAN

BM

BLUE

WHITE

RED

BLACK

BLOWER

MOTOR 4880504

GREEN LIGHTED SWITCH 7850570

WATER LOW

INDICATOR

4650553

STEAMER RELAY

7030528

220° LIMIT

1750615

PRESSURE SWITCH

7850574

FLOAT SWITCH

7850563

WATER FILL

SOLENOID

8600578

STEAMER HEATER

2350525

QUENCHARK 7830507

TEMPERATURE

CONTROL

1750550

OTL LIGHT

4650553

CHAMBER HEATER

250V 750W

2350554

HEAT LIGHT

4650554

OTL CONTROL

1750861

RH CONTROL

1750554

SOLID

STATE RELAY

7030533

HUMIDIYT EXHAUST

FAN

4880564

HUMIDITY

INJECTION SOLENOID

8600578

HUMIDITY LIGHT

4650554

BLACK

WHITE

BLACK

CHART RECORDER

BLACK

WHITE WHITE

TERMINAL BLOCK 5 THROUGH 8

TERMINAL BLOCK 1 THROUGH 4

P2 P3

P13

P8

P20

P5

P12

P7

P11

P18

P14

P17

P24

P1 P14

P19

P24

P17

P2

P13

P8

P3

P18

P11

P16

P22

P12

P5

P9

P7

P4

P1

ORANGE

P10

2800503

EMI

FILTER

POWER

FUSED

INLET

4200505

WHITE WHITE

5

3

1

7 8

BLACK

WHITE

YELLOW

BLACK 18G

WHITE WHITE

RED

BLACK HT

BLUE

WHITE

RED

RED HT

BLACK WHITE

WHITE HT

WHITE

WHITE HT

WHITE 18G

BROWN

RED 22G

BLACK 22G

WIRING DIAGRAM

SHC28-2 (HC30-2)

(9851454)

8

1 2

4

FAN

1 2

4

12VDC

POWER SUPPLY

6750507

OUT IN

RH SENSOR

4100504

1 2

3

4

FAN

BM

BLUE

WHITE

RED

BLACK

BLOWER

MOTOR

4880504

GREEN LIGHTED SWITCH 7850570

WATER LOW

INDICATOR

4650553

STEAMER RELAY

7030536

HEATER REDUCTION

RELAY

7030536

220° LIMIT

1750615

PRESSURE SWITCH

7850574

FLOAT SWITCH

7850563

WATER FILL

SOLENOID

8600576

STEAMER HEATER

2350524

600V 6A

DIODE

2050500

QUENCHARK 7830507

CONDENSING UNIT

7010521

TEMPERATURE

CONTROL

1750549

OTL LIGHT

4650553

75°C LIMIT

1750860

CHILLER TANK HEATER

17.8Ω 120V 800W

CHAMBER HEATER

57Ω 120V 250W

HEAT LIGHT

4650554

OTL CONTROL

1750861

45°C COMPRESSOR

CUT OFF

1750862

RH CONTROL

1750553

SOLID

STATE RELAY

7030533

HUMIDIYT EXHAUST

FAN

4880564

HUMIDITY

INJECTION SOLENOID

8600576

HUMIDITY LIGHT

4650554

13 14

5

1

9

1

5

BLACK

WHITE

BLACK

CP

CHART RECORDER

CIRCULATING PUMP

6700563

BLACK

WHITE WHITE

TERMINAL BLOCK 5 THROUGH 8

TERMINAL BLOCK 1 THROUGH 4

P2 P3

P13

P8

P20

P5

P12

P7

P11

P18

P21

P14

P17

P24

P19

P1 P14

P20

P19

P24

P17

P2

P15

P13

P8

P3

P21

P18

P11

P16

P22

P12

P5

P9

P7

P4

P1

ORANGE

CURCUIT BREAKER

1100500

POWER CORD

1800517

BLACK

BLACK 18G

BLACK

YELLOW

WHITE

RED RED RED

WHITE

RED HT

WHITE HT

BLUE

BLACK

BROWN

WHITE

RED

BLACK HT

WHITE HT

WHITE

WHITE 18G

RED 22G BLACK 22G

P10

WIRING DIAGRAM

SHC28R (HC30R)

(9851455)

9

WIRING DIAGRAM

2800503

EMI

FILTER

1 2

4

FAN

1 2

4

12VDC

POWER SUPPLY

6750507

OUT

IN

RH SENSOR

4100504

1 2

3

4

FAN

BM

BLUE

WHITE

RED

BLACK

BLOWER

MOTOR 4880504

POWER FUSED

INLET

4200505

GREEN LIGHTED SWITCH 7850570

WATER LOW

INDICATOR

4650553

STEAMER RELAY

7030528

HEATER REDUCTION

RELAY

7030528

220° LIMIT

1750615

PRESSURE SWITCH

7850574

FLOAT SWITCH

7850563

WATER FILL

SOLENOID

8600578

STEAMER HEATER

2350525

600V 6A

DIODE

2050500

QUENCHARK 7830507

CONDENSING UNIT

7010543

TEMPERATURE

CONTROL

1750550

OTL LIGHT

4650553

75°C LIMIT

1750860

CHILLER TANK HEATER

67Ω 240V 800W

CHAMBER HEATER

201Ω 240V 250W

HEAT LIGHT

4650554

OTL CONTROL

1750861

45°C COMPRESSOR

CUT OFF

1750862

RH CONTROL

1750554

SOLID

STATE RELAY

7030533

HUMIDIYT EXHAUST

FAN

4880563

HUMIDITY

INJECTION SOLENOID

8600578

HUMIDITY LIGHT

4650554

7 8

7

8

1

3

5

1

3

BLACK

WHITE WHITE

WHITE

BLACK

CP

CHART RECORDER

CIRCULATING PUMP

6700564

BLACK

WHITE WHITE

TERMINAL BLOCK 5 THROUGH 8

TERMINAL BLOCK 1 THROUGH 4

P2 P3

P13

P8

P20

P5

P12

P7

P11

P18

P21

P14

P17

P24

P19

P1 P14

P20

P19

P24

P17

P2

P15

P13

P8

P3

P21

P18

P11

P16

P22

P12

P5

P9

P7

P4

P1

ORANGE

BLACK 18G

YELLOW

RED RED

BLACK

BLUE

BROWN

BLACK HT

WHITE

WHITE HT

WHITE

RED RED RED

RED HT

WHITE HT

WHITE

RED 22G

BLACK 22G

WHITE

BLACK

BROWN

WHITE HT

WHITE

SHC28R-2 (HC30R-2)

(9851456)

Shellab SHC28R-2 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual