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12

6.5.2   

DISPLAY PARAMETERS

The DPC™ Controller is capable of displaying a number of system parameters.
The following summarizes the parameters that can be accessed by the user from
the  DPC™ Controller depending on the DPC™ version:

• 

Chiller Temperature (CHLLR TEMP):  The Chiller Temperature is the temperature,
in degrees Fahrenheit, of the air at the coldest point in the air circuit.

• 

Compressor Status (CMPRSSR): Displays whether the refrigeration compressor
is “ON” or “OFF”.

• 

Discharge Pressure (P disch): Displays the discharge pressure of the refrigeration
system. 

• 

Suction Temperature (T suction): Displays the suction temperature, in deg. F, of
the refrigeration system.  This value is useful in determining superheat of the
refrigerant.  (DPC™-Plus Only)

• 

Suction Pressure (P suction): Displays the suction pressure, in psig, of the refrig-
eration system.  (DPC™-Plus Only)

• 

Inlet Air Pressure and Temperature (P AIR IN / T AIR IN): Displays the tempera-
ture, in °F and pressure, in psig, of the inlet compressed air.  

(DPC™-Plus Only)

• 

Outlet Air Pressure and Temperature (P AIR OUT / T AIR OUT): Displays the
temperature, in °F and pressure, in psig, of the outlet compressed air.  
(DPC™-Plus Only)

• 

Drain Interval (DRN INT): Displays the length of time, in minutes, between
operation of the solenoid drain.

• 

Drain On (DRN ON): Displays the length of time, in seconds, that the solenoid
drain is open.

• 

Cumulative Dryer Hours (CUM DRYER HR): Displays the length of time, in hours,
that the dryer has been operational.

Depressing the SELECT DISPLAY button repeatedly scrolls through the above
non-adjustable displays.  The Customer Set Points appear at the end of the list
and may be adjusted by the end user to match seasonal refrigeration and drain
operation.  These settings are as follows:

• 

Drain Interval (DRN INT)

• 

Drain On (DRN ON)

Содержание CFX NC Series

Страница 1: ...16 8 SCHEDULED MAINTENANCE 19 9 TECHNICAIN MODE 22 10 TROUBLESHOOTING 25 11 WIRING DIAGRAMS 27 12 GENERAL ARRANGEMENT 31 13 PARTS IDENTIFICATION 32 14 ENGINEERING SPECIFICATIONS 35 ZEKS Compressed Ai...

Страница 2: ...e Warranty Registration Card may be completed online at www zeks com The total warranty period cannot exceed 18 months from the original date of shipment from the factory Equipment must be installed a...

Страница 3: ...of all other warranties There are no other warranties expressed or implied except as stated herein There are no implied warranties of merchantability or fitness for a particular purpose which are spe...

Страница 4: ...uld any person attempt to lift heavy objects without proper lifting equipment i e crane hoist slings or fork truck Lifting any unit without proper lifting equipment may cause serious injury To facilit...

Страница 5: ...erate the dryer at pressures in excess of its rating 8 Do not operate the dryer without guards shields and screen in place 9 Inspect unit daily to observe and correct any unsafe operating conditions T...

Страница 6: ...trainer la mort Ne pas exc der le taux de pression Rel cher la pression avant la mise en service de l appareil Ne pas modifier r parer ou retravailler Le taux de pression des vaisseaux est conforme au...

Страница 7: ...cation See Attached Terminal Connection Diagram Be Certain To Follow All NEC State Local and Other Applicable Codes During Installation Label Group 2 Page 1 of 2 File ZEKSLABELGROUP2 1 LA BO TE DE CON...

Страница 8: ...hot saturated air from the compressor enters the precooler reheater where the air temperature is reduced prior to entering the chiller by the cool air exiting the air moisture separator This precoolin...

Страница 9: ...uency is required A longer valve off time may be used during the winter months when moisture levels are lower 6 4 REFRIGERATION SYSTEM The Refrigeration System consists of all the components which han...

Страница 10: ...ted for 2A 120V max The DPC Controller features three levels of access The default level CUSTOMER MODE permits adjustment of dryer parameters to address seasonal variations for drain timing A protecte...

Страница 11: ...ose at 270 psig The DPC controller includes a digital readout for monitoring the discharge pressure of the refrigerant gas exiting the compressor This reading will vary depending upon condenser type a...

Страница 12: ...isplayed as the default display Allows user to increase set point values Set point values cycle through a fixed range Also allows entering negative numbers in FACTORY MODE TEST Allows user to manually...

Страница 13: ...tion pressure in psig of the refrig eration system DPC Plus Only Inlet Air Pressure and Temperature P AIR IN T AIR IN Displays the tempera ture in F and pressure in psig of the inlet compressed air DP...

Страница 14: ...DPC Controller has several user adjustable set points that are displayed at the end of the display parameter list These set points allow the user to configure the dryer to operate according to site co...

Страница 15: ...Note that this alarm will shut down the dryer after a response time delay This alarm will reset automatically once the alarm condition is rectified HIGH PRESSURE CUTOUT ALARM HI PRESS CO If the disch...

Страница 16: ...followed by the PRESS ON BUTTON display After the ASC delay has timed out the dryer will only start once the ON button is depressed In this configuration to restart the dryer the user must manually d...

Страница 17: ...ended Prefilters and afterfilters sized to your drying application can be provided by ZEKS and are available factory installed Call your local distributor to select the filter that best suits your fil...

Страница 18: ...and appropriate Wiring Diagrams A suitable fused disconnect switch or circuit breaker in accordance with national and local code requirements is recommended for all ZEKS equipment Refer to the Enginee...

Страница 19: ...Y using the SET button enables this mode of operation Note that the dryer s touch pad will still affect dryer operation Depressing the OFF button will de energize the refrigeration compressor and all...

Страница 20: ...equired Remote Automatic Mode Close the remote contact For NonCycle dryers after the initial delay has timed out the compressor is energized The suction pressure gauge will typically pull down between...

Страница 21: ...the valve is depressurized Carefully remove the Strainer End Cap and remove the Strainer Clean the Strainer and remove any debris that is evident in the valve Replace the Strainer and reinstall the S...

Страница 22: ...ilure to the seals will occur Be especially careful to clean the center brass orifice and the rubber gasket orifice on the orifice cup with a straight pin Reassemble all drain components after the dra...

Страница 23: ...hours AUTO RESTART ENABLE AUTO RESTART N or Y Parameter Display Set Point OPERATING MODE OP MODE HS or NC REFRIGERANT REFRIG 22 or 404 or 407 CONDENSER TYPE COND AC OR WC OPERATING TEMPERATURE DIFFER...

Страница 24: ...arameter for the Auto Restart feature AUTO RESTART N SELECT DISPLAY The DRAIN ENABLE parameter determines whether the DPC shall control an electronic solenoid drain valve A value of ON will permit the...

Страница 25: ...M LIST screen at the top of the ALARM LIST BEGIN ALARM LIST SELECT DISPLAY The Alarm List will repeat as long as the SELECT DISPLAY button is depressed To EXIT the ALARM LIST perform the following Dep...

Страница 26: ...DRAIN TEST contact distributor Check inlet and outlet pressures and system design capacity Correct cause of excessive flow Close by pass valve Check power supply and fuses circuit breakers Check and...

Страница 27: ...nd outlet filters blocked up Compressor relay contactor stuck DPC relay bad Probe not completely in thermal well Problem persists CORRECTIVE ACTION Check Chiller Temperature Check MAIN CONTROL fuse Co...

Страница 28: ...27 11 WIRING DIAGRAMS...

Страница 29: ...28...

Страница 30: ...29...

Страница 31: ...30...

Страница 32: ...31 12 GENERAL ARRANGEMENT...

Страница 33: ...NCE 700 NCE 800 NCE 1 Exchanger Assy 748065 748069 748056 748056 2 Solenoid Drain Valve 682657 682657 682657 682657 3 Drain Valve Repair Kit 683006 683006 683006 683006 4 Filter Stop 682438 682438 682...

Страница 34: ...33...

Страница 35: ...34...

Страница 36: ...35...

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