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that air pressure is removed from the machine prior to removing the filter element.  On units that have the 
Control Center option installed the filter differential can be checked on the control board. 
 
The coalescing element should be changed annually.  To change the filter element: 
 

  De-pressurize the dryer. 

  Remove the bolts that secure the filter housing cover. 

  Remove the wing nut that secures the filter cap to the element. 

  Remove the filter cap. 

  Remove the existing element from the housing. 

  Install the replacement element. 

  Reinstall the filter cap and wing nut 

  Reinstall the filter cover. 

 
 

Condensing Coil (Air Cooled Units) 
 

The condensing coil should be cleaned weekly.  Ensure that air pressure is removed from the system prior to 
cleaning the condenser.  The condenser can be cleaned by using a vacuum or compressed air.  If the 
condenser is not clean after it is blown out with compressed air or vacuumed, contact the factory for 
assistance. 
 

Condenser (Water Cooled Units) 
 

The water cooled condenser should be checked and cleaned annually if necessary.  To check the 
condenser, water flow to the condenser should be shut off, air flow to the machine should be shut off, and the 
unit should be taken out of a run mode.  The end bonnets then need to be removed exposing the tube side of 
the condenser.  The tube side should be inspected for any debris and cleaned.   If soft deposits are found 
they can be cleaned using a pneumatic tube cleaning gun which forces plugs down the tubes.  Some have a 
brush between two rubber plugs and others are specially designed plugs which scrape the tube walls as they 
travel down the tube.  If scale is found special equipment is required to clean the tubes.  These cleaning 
systems utilize a flexible shaft which rotates a brush as it is fed down the tube, they can also simultaneously 
flush out the tubes with water.  There is a wide variety of brushes and tools available that attach to the shaft 
to clean both soft and hard deposits. 
 

 
Drain Line Y-Strainer (See Figure 3 in Section G for detail) 
 

The drain line y-strainer should be cleaned weekly.  Air flow and air pressure should be removed from 
system before proceeding.  To clean the y-strainer: 

  Turn the ball valve on the strainer assembly to the closed position 

  Remove threaded cap at the end of the ball valve assembly. 

  Clean the screen inside of the cap by rinsing it under water. 

  Reinstall the screen and cap 

  Return the ball valve to the open position 

 

High Pressure, Low Pressure, & Fan Control (AC units only) 
 

The refrigeration pressure switches should be checked monthly to ensure that they are adjusted to the 
proper settings.  Please refer to the applicable electrical drawings for your unit. 

Summary of Contents for Airtek SMART CYCLE PLUS 100

Page 1: ...1 SMART CYCLE PLUS REFRIGERATED AIR DRYERS OPERATORS MANUAL MODELS SCP 80 to 3000 SERVICE DEPARTMENT 1 800 451 6023 Publication 042209 January 22 2010 rev 3...

Page 2: ...0 DRYER INSTALLATION Page 6 Section 4 0 CONTROLS Page 11 Section 5 0 START UP PROCEDURE Page 17 Section 6 0 ROUNTINE MAINTENANCE Page 20 Section 7 0 DIAGNOSTIC CODES Page 21 Section 8 0 MAINTENANCE CH...

Page 3: ...ater Voltage VOLT Number of Fans Fan Motor Horse Power HP Max Amp Draw AMPS copper THHN Wire Size AWG Fuse Size AMP enter n a if not used Nema Starter Size PART Overload Setting AMPS Water Condenser M...

Page 4: ...ed dryers must be located in an area with an ambient temperature between 50 100 F 10 35 C and free from explosive and corrosive fumes Three 3 feet 92cm of space must be allowed between all open grills...

Page 5: ...t Air piping must be supported independently of the dryer Direction of the air flow must be observed for proper installation Fig 1 General Layout For Connections all connections are labeled H20 In Out...

Page 6: ...6 Fig 2 Models 80 300...

Page 7: ...WILL PREVENT DAMAGE TO INTERNAL AIR LINES Recommended tools for Start up 1 Roto lock packing wrench special 2 Refridge service wrench 3 Small adjustable wrench 4 6 adjustable wrench 5 Philips screw d...

Page 8: ...ox cover and screw closed 7 Turn Service Switch ON 8 Replace side covers Electrical Hook up Voltage Phase Wire Colors 115V Single Black White Green 230V Single Black Red Green 230V 3 Phase 3 Black 1 G...

Page 9: ...PLUS 500 1200 Fans must pull air through condenser coil Read special TAG on scroll compressors fro proper rotation Observe dewpoint reading to verify rotation If dewpoint reading does not drop within...

Page 10: ...rm event The Display will indicate all alarms when they occur Pushing the ALARM Key will attempt to clear the fault Note with some alarms the system will need to be restarted 3 DRAIN KEY OPERATE DRAIN...

Page 11: ...ED s will illuminate in RED AMBER and GREEN They represent a visual indication as to dryer loading If all the LED s are RED this is the worst possible state a combination of very bad dew point and or...

Page 12: ...is pressurized Unit MUST be depressurized and bypassed before any service work is done on air system Excessive pressure drop more than 5 PSIG across dryer indicates water may be freezing in the evapo...

Page 13: ...load Mode C Cycling Mode LOAD UNLOAD MODE CYCLING MODE Main Display System Running with Warning Alarms Alarm Description s Operating Dew Point Warning Alarms HIGH DEW POINT DRAIN FAULT HIGH CONDENSER...

Page 14: ...n exists then the top line of the display will automatically cycle thru all active alarms Read System Parameters Press the READ key to cycle thru the system parameter values Parameter Description Para...

Page 15: ...P 100 F 0 thru 125 F MAX INLET TEMP 101 F 0 thru 125 F TEMPERATURE UNITS F F C PRESSURE UNITS psi psi kPa bars NETWORK ADDRESS 1 1 thru 247 Changing the User Settings Setting Description Setting Use t...

Page 16: ...Maintenance Timer Press the ALARM RESET key to reset the maintenance timer and alarm Press YES to reset the timer to 6 months after maintenance has been performed Press NO to reset the timer to 8 hou...

Page 17: ...3000 1 After electrical connection Refer to Section 3 apply power 2 Leave power on for 8 hours before proceeding any further Both green load unload thermal bank LED s should be OFF on the control pan...

Page 18: ...D indicator will light when unit is running 9 If the storage conditions were adverse for example very cooled the refrigeration compressor may make a loud metallic hammering noise If this happens turn...

Page 19: ...nd drains there is no Y Strainer for larger unit only not 80 1200 SCFM 12 Restart dryer using this procedure after maintenance power outage or prolonged periods of shutdown When Operating Dryer 1 Turn...

Page 20: ...WI IT TH H V VA AP PO OR R S Se ee e t ta ag g f fo or r c co or rr re ec ct t r re ef fr ri ig ge er ra an nt t c ch ha ar rg ge e U Un ni it t n ne ee ed ds s t to o b be e p pu ul ll le ed d i in n...

Page 21: ...MANUAL DRAIN FAULT 17 Drain switch is closed for too long See Note 1 No Auto FROZEN EVAP 18 Dew Point 20 F 10 minutes YES MANUAL HIGH CONDENSER TEMP 21 Ambient Water temperature is higher than setting...

Page 22: ...t the factory for verification prior to proceeding with this maintenance item MAINTENANCE PROCEDURES Before performing any maintenance on the machine ensure that air pressure is vented from the system...

Page 23: ...need to be removed exposing the tube side of the condenser The tube side should be inspected for any debris and cleaned If soft deposits are found they can be cleaned using a pneumatic tube cleaning g...

Page 24: ...il do the following Run the dryer for a minimum of 2 minutes if there is not a visible level of oil in the sight glass proceed to the next step if there is an oil level DO NOT add oil to the system Us...

Page 25: ...25 Section 8 0 MAINTENANCE CHARTS Maintenance Log Service Performed Date Parts Replaced Initials...

Page 26: ...26 Section 8 0 MAINTENANCE CHARTS cont Element Replacement Log Part No Date Initials...

Page 27: ...27 Section 9 0 ASSOCIATED DRAWINGS...

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Page 45: ...From COMMENTS Please indicate a response on a scale of 1 being the lowest to 5 being the highest Condition of Arrival Ease of Installation Ease of Start Up Product Quality Technical Assistance Clarity...

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