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5-6 Optional Communications

Standard Omron Protocol

The communications function allows you to monitor and set E5CK parameters by a
program prepared and running on a host computer connected to the E5CK controller.
When using the communications function, you must add on the unit for RS-232C or RS-
485 communications. The E5CK communications function allows you to read/write
parameters, do operating instructions, and select the setting level.

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Summary of Contents for PCA050

Page 1: ...Chiller Operation Manual Write Down Your Serial Numbers Here For Future Reference _________________________ _________________________ _________________________ _________________________ ______________...

Page 2: ...Page 2 We are committed to a continuing program of product improvement Specifications appearance and dimensions described in this manual are subject to change without notice...

Page 3: ...ition to information for operating the equipment safely and efficiently The Maintenance chapter is intended to serve as a source of detailed assembly and disassembly instructions for those areas of th...

Page 4: ...ng Damages 1 7 If the Shipment is Not Complete 1 8 If the Shipment is Incorrect 1 9 Returns 2 Chiller Installation 13 2 1 Electrical Connections 2 2 Process Water Connections 2 3 PCA Condenser Air Sup...

Page 5: ...op Table 5 Microprocessor Control 25 5 1 Introduction 5 2 Setting the Process Water Temperature 5 3 LED Indicators 5 4 Temperature Controller Keys 5 5 Auto Tuning PCA Series Chillers 5 6 Optional Comm...

Page 6: ...rve 16 Figure 7 Overhead Piping 17 Figure 8 PCA Component Identification 20 Figure 9 Piping Schematic 1 Pump with Reservoir 21 Figure 10 Piping Schematic 1 Pump Without Reservoir 22 Figure 11 Piping S...

Page 7: ...ocuments are necessary for the operation installation and maintenance of PCA Series Chillers Additional copies are available from Fleming Dynamics Pty Ltd Familiarize the appropriate personnel with th...

Page 8: ...CA unit CPR Valve A crankcase pressure regulating CPR valve is available for leaving water temperatures up to 24 C 1 5 Un crating Your New Chiller PCA Series Chillers are shipped mounted on a skid enc...

Page 9: ...of Lading is attached to our original invoice If the shipment was prepaid write us for a receipted transportation bill Advise Fleming Dynamics regarding your wish for replacement 1 7 If the Shipment i...

Page 10: ...Page 10 1 9 Returns IMPORTANT Do not return any damaged or incorrect items until you receive shipping instructions from Fleming Dynamics...

Page 11: ...Page 11...

Page 12: ...Page 12...

Page 13: ...Page 13 BSP BSP BSP inches BSP inches BSP...

Page 14: ...meplate rating 2 2 Process Water Connections All external chilled water connections to the process must be of adequate size See Figure 7 on page See 17 for sizing recommendations The largest possible...

Page 15: ...scharged from the chiller Do not put the PCA unit where steam hot air or fume exhausts will be drawn into the condenser Air cooled condensers must be cleaned frequently Neglect reduces capacity increa...

Page 16: ...ir is not designed to withstand water pressure above 34 kPa The fill opening and vent line must be vented to the atmosphere for proper operation Ethylene Glycol Required For Evaporator Freeze Protecti...

Page 17: ...n can occur on system shutdown when the water in the system drains into the reservoir To prevent this install a check valve in the unit TO PROCESS line and a vacuum breaker at the high point of the re...

Page 18: ...cuit Liquid refrigerant from the condenser passes through a filter dryer which removes moisture and other contaminants The refrigerant then passes through the thermal expansion valve which allows the...

Page 19: ...ro mechanical safety feature that prevents compressor suction pressure from dropping below a pre set point It is factory set to open the control circuit when pressure drops below a safe level The chil...

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Page 24: ...TO PROCESS and FROM PROCESS connections should be completed 4 Be sure the reservoir tank and chilled water circuit piping are filled with water 5 The air cooled condenser should have an adequate suppl...

Page 25: ...Page 25...

Page 26: ...ton to raise the set point Press the Down Arrow button to lower the set point 5 3 LED Indicators PV or Process Value Numeric LED During normal operation the large red PV LED on the controller displays...

Page 27: ...temperature at the To Process thermocouple is two degrees 2 F C below the set point This 2 F C control set point is factory set for proper compressor operation Changing it is not recommended without c...

Page 28: ...he set point This 2 F C control set point is factory set for proper compressor operation Changing it is not recommended without consulting the Fleming Service Department 5 4 Temperature Controller Key...

Page 29: ...as many as three 3 times It will then level off and control to the process set point Auto tuning can take up to 45 minutes and is best done before any product is being run Important Factory default s...

Page 30: ...parameters by a program prepared and running on a host computer connected to the E5CK controller When using the communications function you must add on the unit for RS 232C or RS 485 communications T...

Page 31: ...ion service technician for service LOW REFRIGERANT PRESSURE red This indicator lights if the refrigerant pressure drops below a safe level The compressor will stop and remain off until the pressure re...

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Page 33: ...result in dislodging the bearing grease retainer eventually causing bearing failure Compressors are hermetically sealed no oiling is required 7 2 Condenser Maintenance Dirty condenser heat exchange su...

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Page 36: ...Page 36 Notes...

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Page 40: ...Page 40 Notes...

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Page 43: ...provide your company with genuine OEM quality parts manufactured to engineering design specifications which will maximize your equipment s performance and efficiency To assist in expediting your email...

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