DataMate 3000 Series Air Conditioner User Manual
Contents
1. Main Menu Alarm Menu Setpoints System Status System Menu in Temp r Monitor Unit No Temp Stpt T H Status In Hum Cntl Brd Temp Bias HU Teamwork Out Temp Unit No Hum Stpt fl yyyy mm dd r Cold Start Hum Bias Time Date Alarm Status Horas Hot Start H Start Delay Alarm History om m Main fan A High Temp p Fan S UR C F Degree Cool Compressor U Low T H ool Alarm NW Temp Hum Control Setpoint P High Hum Heat Beeper H Deh Low Hum Output _ a Backlight Status Hum m High Prs Contrast H Low Prs Fi FC Heat High Temp Host l Hum A his Un Sta L unc H Low Temp Spare LU FC Alarm gt H Host Time Outputs J High Hum Fan 7 Standby A pl Spare Time2. Note Pitch the discharge line a minimum of 5mm per meter 1 200 Use a heat isolation material to pack around the tubes if the discharge line goes through the area controlled by the air conditioner including under isolation floor 1 Removing plate 2 Refrigerant line connection Discharge line DMCO7 line O D 1 2 connection O D 3 4 20mm su DMC12 line O D 5 8 connection O D 7 8 22mm Lquide line DMC07 line O D 3 8 connection O D 5 8 16mm DMC12 line O D 1 2 connection O D 3 4 20mm Figure 2 12 Piping interface inside condenser DataMate 3000 Series Air Conditioner User Manual 18 Chapter 2 Mechanical Installation Connecting liquid line Connect the liquid line between the evaporator shown in Figure 2 11 and the condenser shown in Figure 2 12 through the cutout of the evaporator shown in Figure 2 10 2 6 5 Notice For Refrigerant Piping 1 The pressure drop of the liquid line should be less than 0 4kgf cm 2 The copper lines an insulated discharge line and a liquid line are available from the factory in length of 10 meters Contact Emerson or your sales agency for longer piping runs 3 Quick connects are also available to enable field supplied piping 4 Handle the lines with care so that they will not get kinked or damaged Use tube benders and make all bends before making connections to either end 5 If all refrigeration piping should be installed with high temp
3. The electric board such as interface board control board and temperature amp humidity sensor board should be inspected on a semi annual basis for any loose electrical connection and signs of circuit rusting There are four PCBs in the controller They detect the system fault input signals and output commands Inspect the electric boards one by one according to the procedures below 1 Do the system insulation test check and repair the failed contacts 2 Check if the contacts are flexible without blocking in statistic status 3 Clean the electric components with a brush or compressed dry air 4 Check if the contacts have arc or burned phenomenon when closing 5 Tighten all electric contacts 6 Measure the temperature of all MCCBs and contacts Note Do not plug or unplug any electric board with power on Big instant current will be produced when an electric board is plugged unplugged with power on which may lead to unrepairable damage to a circuit All control board can only be maintained after the controller is turned off DataMate 3000 Series Air Conditioner User Manual 48 Chapter 6 Maintenance 6 2 Evaporator 6 2 1 Filter The filter is a consumable Its service interval is directly related to the seal and cleanness status of the system room Check it monthly and replace it when it is dirty in order to maintain efficient operation The filter is installed in front
4. During this progress pay attention that if the room temperature is 3 C higher than the setpoint dehumidification requirement may not be responded as the system may operate under the forced cooling mode Note Change the setpoint to the default or the original point after the test Read next chapter to configure relevant parameters when system operates normally after the test DataMate 3000 Series Air Conditioner User Manual 30 Chapter 5 Microprocessor Control Chapter 5 Microprocessor Control The microprocessor control features an easy to use menu driven LCD display lt monitors and displays the operation status of the precision cooling unit to maintain a reasonable environment in the controlled room The menus control features and parameter settings are described in this chapter 5 1 LCD Screen LCD screen displays English menus with blue backlight It displays temperature and relative humidity readings operating mode cool heat dehumidify humidify alarm information current date and time as shown in Figure 5 1 Figure 5 1 LCD screen Users can browse more detailed information such as the operation status of a certain part and alarm information by activating the sub menus in the main menu screen The selected item will highlight in a menu The digit to be changed will highlight when a parameter is being changed 5 2 Control Buttons There are nine control buttons on the keypad namely Up Down Left Right
5. 7mm DataMate 3000 Series Air Conditioner User Manual 8 Chapter 2 Mechanical Installation 2 3 2 System Installation Illustration The evaporator and condenser must stand on the floor or ground The DataMate3000 can be installed in two ways One is to install the condenser higher than the evaporator and the other is to install the condenser lower than the evaporator as shown in Figure 2 2 condenser Liquid line not be exposed to sun Trap S Evaporator Protection tube E a 1 200 x Discharge Humidifier water line slope supplyline from 5 Insulation floor water supply tube Bo CL heesarazacacasocerosorogosoro ogogegegenegonogesesedes EEE NE Seal and S Insulation ES x vapor seal material Floor 1 200 9 E Drain line trapped outside room a Condenser higher than evaporator Evaporator Protection tube beast Humidifier water bet Nees ischarge supply line from Liquid line notbe Seal and line slope Reese tube exposed to sun vapor seal Insulation floor 7 e KREIS KOLO EROS KR SORE SKK KR Condenser 7 y 3 amp Insulation material Floor M4 200 x Drain line trapped outside the room a CERRAR ARA RRO b Condenser lower than evaporator Figure 2 2 DataMate3000 installation illustration DataMate 3000 Series Air Conditioner User Manual Chapter 2 Mechanical Installation 2 3 3 Unit Mechanical Parameters The mechanical parameters of the evaporator
6. Celsius scale 4 Use Up Down buttons to move the cursor to Hum Control in the System Setup menu and press Enter to set the humidity control method to absolute humidity control or relative humidity control The default method is relative humidity control 5 Use Up Down buttons to move the cursor to Beeper in the System Setup menu and press Enter to set the beeper to ON or OFF The default is ON 6 Use Up Down buttons to move the cursor to Backlight in the System Setup menu and press Enter to set the backlight to ON or OFF The default setting is ON 7 Use Up Down buttons to move the cursor to Contrast in the System Setup menu and press Enter to set the contrast of the LCD The setting range is from 28 to 38 and the default setting is 30 5 9 2 Optional Func The optional function settings will not be lost when power fails Select Optional Func from the System Menu to display the functions listed in Figure 5 28 Figure 5 28 Optional Func menu 1 Use Up Down buttons to move the cursor to Heat and press Enter to set the optional heater to ON or OFF The default setting is OFF 2 Use Up Down buttons to move the cursor to Hum and press Enter to set the optional humidifier to ON or OFF The default setting is OFF 3 Use Up Down buttons to move the cursor to FC and press Enter to set the optional function of free cooling to ON or OFF The default setting is OFF 4 Use Up Down buttons to move the cursor to Standby and pre
7. Control Cables Control terminals are on the PCB shown in Figure 3 4 Ann na e Control terminals on J the PCB Figure 3 4 Control terminals location The terminal arrangement is shown in Figure 3 5 DataMate 3000 Series Air Conditioner User Manual 24 3 4 1 Chapter 3 Electrical Installation Standby unit Custom 1 Custom 2 enable _ m J14 Smoking J22 Fire J38 Shutdown Changeover 310 General Figure 3 5 Control terminal arrangement Note The installation engineer must take anti static measures before making connection Remote Unit Shutdown Smoking And Fire Sensing As shown in Figure 3 5 the signals fed to the following terminals are J8 Remote on off control J14 Smoke alarm J22 Fire alarm If these three terminals are shorted and the power switch of the system is switched on the air conditioner will run If any of the three terminals are not shorted the air conditioner will stop In this way DataMate3000 air conditioner can be shut down through these terminals in case of emergency The three control circuits are shorted through the three terminals before delivery Remove the shorting wires if the smoke and fire sensor cables and the remote on off control cable are connected to the terminals of J8 J14 and J22 respectively 3 4 2 Custom Alarms Terminals J67 Custom 1 and terminals J68 Custom 2 can be input
8. Enter Esc ON OFF Mute and Help buttons as shown in Figure 5 2 DataMate 3000 Series Air Conditioner User Manual Chapter 5 Microprocessor Control 31 9 Mute 8 Up 1 ON OFF 7 Right 16 Enter g 4 Left 3 Esc 5 Down Figure 5 2 Control keypad 1 ON OFF When the system is in standby status after power on pressing this button makes it operate and LCD displays the On screen Refer to section 5 4 1 When the system is operating pressing this button switch it to the standby status and LCD displays the Off screen Refer to section 5 4 2 2 Help Pressing this button displays associated help screen 3 Esc Pressing this button returns to the Normal screen or previous menu screen or aborts any changes on the input data field before validating the changes 4 Left This button moves the cursor left in the input data field 5 Down This button moves the cursor down the menu or decreases the number in the input data field 6 Enter This button allows entry into the next level of a menu or validates the modified data in the input data field 7 Right This button moves the cursor right in the input data field 8 Up This button moves the cursor up on the menu or increases the value displayed in the input data field 9 Mute If an alarm is present it will be displayed on the LCD and sound an audible beeper Pressing this button eliminates the prompted alarm scre
9. For special application they must be changed under the guidance of trained professional personnel Figure 5 11 Alarm Setpoint screen To change the setpoint use Up Down buttons to move the cursor to the item desired to be changed and press Enter to select it Press Enter again use Up Down buttons to change the value of each digit and then press Enter to validate the change Refer to Table 5 1 for the defaults and the setting ranges 5 6 4 Alarm Outputs The alarm output settings will not be lost when power fails Select Alarm Outputs from the Alarm Menu to browse or change the settings listed in Figure 5 12 Figure 5 12 Alarm Outputs menu The alarm output can be set to OPEN CLOSE or STOP Move the cursor to the item to be changed press Enter to move the cursor to the OPEN CLOSE STOP field Use Up Down buttons to toggle among OPEN CLOSE and STOP Press Enter to validate the setting DataMate 3000 Series Air Conditioner User Manual 38 Chapter 5 Microprocessor Control Table 5 2 Alarm output logic Settings Alarm History Alarm Status Audible alarm Alarm prompt OPEN Yes Yes Yes Yes CLOSE Yes Yes No Yes STOP No No No No Note As the high pressure alarm low pressure alarm and power failure alarm are major alarms they cannot be set to STOP 5 6 5 Custom Alarm The custom alarm settings will not be lost when power fails Move the cursor to Custom Alarm on the Alarm Menu and pr
10. Manual Chapter 2 Mechanical Installation 11 2 4 2 Location Consideration Note The DataMate3000 generates water Water leaks can cause damage to sensitive system nearby Do not mount units near sensitive systems Be sure to install a field supplied pan with a drain line 1 Try to locate the evaporator in a capacious floor space to ensure normal operation 2 Avoid locations in confined areas that affect the airflow pattern and result in short cycles and abnormal noise 3 Do no install the unit in an alcove or at the extreme end of a long narrow room 4 Do no install multiple units close to each other This can result in crossing air patterns uneven loads and competing operating modes 5 Do not attach additional devices such as smoke detectors and so on to the cabinet that will interfere with routine maintenance or service Figure 2 5 indicates the recommended room location Recommended location Not recommended Figure 2 5 Recommended room location of evaporator DataMate 3000 Series Air Conditioner User Manual 12 Chapter 2 Mechanical Installation 24 3 Installation Procedure 1 Secure the floorstand on the selected location The outline and dimensions of the floorstand are shown in Figure 2 6 600 Pe 7 We L TES DA SY yo Rubber cushion 8mm 5 K K l N LO a es EN l i N A Rubber cushion 8mm AX LUL hole
11. e ee ENE 41 044 RUMOURS 2 tt Aa A ee 41 9 9 System Melina a A c A es 41 ESO sed dew ar an ar a aa aaaea PE ca vasnenslasdetnedbanesnceleatee aes bese 42 5 9 2 Optional FUNG ensis A Wb mentor id die ee ast 43 5 9 9 Sensor Calibrate iis cassis ise dade heise lia eo 44 5 9 4 Output Diagnose ecc akaaere Ea Ea AAEE EAEan aN Saanika 45 DIO Change Password ins e ae A i E aa a Aaaa A ae 45 5 967 System RESE cti EE aa 46 Chapter 6 EA raa a aaae aiana aa iaia ranan AAAA EEEa 47 6 1 Electi Board ii A A AA AS Matinee aad hae 47 0 2 Tere TT 48 O2 O NO 48 A ON 48 6 2 3 Drama iia c a 49 O 214 gt OAL E E A E T E sencae awe tecnaled akitaeaatee 49 6 2 5 Thermal Expansion Valve sse sese esec ee sees eee eee eenn 49 6 2 6 High Low Pressure Switch eee eee 49 02 1 COMPTE Oct ii 50 623 O teeth oot thet tice ai ede 51 6 3 1 Refrigeration System sese eee eree ee eee 51 6 3 2 Air Cooled Condensing Unse sss sse eee eee 51 6 4 Maintenance Inspection Checkliet e eee nnne eene 51 Chapter 7 Troubleshooting esse ee eee eee eee 53 Appendix Control System Menu Structure eee eee e eee 55 Chapter 1 Introduction 1 Chapter 1 Introduction 1 1 Product Model Information DME 07 MH1 Ha Revision Level 1 0 C Cooling Only O With Electric Reheat H With Humidifier and Reheat W 220V 1 ph 50Hz MI 380V 3 ph 50Hz 07 7kW Evaporator 12 12kW Evaporator E Indoor Unit C Outdoor Unit DataMate3000 Air Conditioner
12. for installing N s expansive bolt M6 x 50 30 x 30 x 3 angle iron X or 25 x 25 x 2 square tube Sole EN A Steel plate 60 x 60 x 4 LAY Figure 2 6 Floorstand 2 Lay a rubber cushion with 8 10mm thickness as shown in Figure 2 6 3 Uncrate the evaporator and place it onto the floorstand 4 Rotate the grille to select the desired air discharge direction as shown in Figure 2 7 LS late can be rotated in the arrow direction Figure 2 7 Changing air discharge direction DataMate 3000 Series Air Conditioner User Manual Chapter 2 Mechanical Installation 13 2 5 Condenser Installation 2 5 1 Location Considerations 1 The condenser should be located for maintenance accessibility and away from residential areas Avoid ground level sites with public access 2 Do no locate the condenser directly in the environment that requires low noise 3 To ensure a Satisfactory air supply locate the condenser in a clean area away from loose dirt and foreign matter that may clog the heat exchanger 4 Do not locate the condenser in the vicinity of steam hot air or fume exhausts 5 Do not locate the condenser closer than 450mm from a wall obstruction or adjacent unit 6 Avoid areas where heavy snow will accumulate at air inlet and discharge locations 7 Install a solid base capable of supporting the weight of the condenser The base should be at least 50mm higher than the surrounding ground and 50mm lar
13. listed in Figure 5 24 Figure 5 24 System Setup sub menu Use Up Down buttons to move the cursor to Monitor as shown in Figure 5 24 and press Enter to display the sub menu as shown in Figure 5 25 Press Enter to set the system address for communicating with a host The setting range is 1 244 and the default value is 1 Figure 5 25 Monitor sub menu 1 Use Up Down buttons to move the cursor to Teamwork in the System Setup menu and press Enter to display the Teamwork sub menu as shown in Figure 5 26 Use Up Down buttons to move the cursor to Cntl Brd and press Enter to set the control board number for communication with other control boards It can be set from O to 15 and the default value is O Use Up Down buttons to move the cursor to Unit No and press Enter to set the unit number It can be set from 0 to 15 and the default value is 0 Figure 5 26 Teamwork sub menu 2 Use Up Down buttons to move the cursor to Start Delay in the System Setup menu and press Enter to display the sub menu as shown in Figure 5 27 The default values and the setting ranges of the delays in Figure 5 27 are listed in Table 5 1 DataMate 3000 Series Air Conditioner User Manual Chapter 5 Microprocessor Control 43 Figure 5 27 Start Delay sub menu 3 Press Up Down buttons to move the cursor to C F Degrees in the System Setup menu and press Enter to set the displayed temperature unit to Celsius C or Fahrenheit F The default unit is
14. signs of corrosion Electric heater Check element for signs of corrosion Notes Signature DataMate 3000 Series Air Conditioner Make photocopies of this form for your records User Manual Chapter 7 Troubleshooting 53 Chapter 7 Troubleshooting Symptom Possible cause Check or remedy Unit will not start No power to system Check voltage at input terminal block Control voltage circuit breaker at transformer open Locate short and reset circuit breaker Float switch relay has closed due to high water level in the condensate pump sump Check drain and line as well as for failed pump Jumper not in place Check jumpers on the interface board No cooling Compressor contactor not pulling in Check for 24Vac 2Vac at terminal J74 on the interface board If voltage check contactor Compressor high head pressure See High pressure alarm for cause Plugged filter drier Low refrigerant charge Replace filter drier Check pressure gauges Check if there is evident bubbles from the sight glass High pressure alarm Insufficient air flow across condenser coil Remove debris from coil and air inlet Condenser fan not operating Check fan operation Humidifier does not operate Humidify function disabled Set Humidity to OPEN refer to section 5 9 2 No humidify demand from the controller Increase humidity control
15. superheat level to determine if the valve operation is proper The correct superheat setting is 5 6 C to 8 3 C 10 F to 15 F 6 2 6 High Low Pressure Switch The discharge pressure and suction pressure will vary greatly with load and ambient conditions refer to Table 6 1 during normal operation The high pressure switch will be activated and send an alarm signal to the controller when the discharge pressure reaches to the high pressure setpoint Then the controller will shut down the compressor If the suction pressure is lower than the low pressure setpoint the low pressure switch will activate and then the controller will shut down the cooling system Table 6 1 Typical discharge pressure suction pressure PSIG MPa Low pressure 57 5 99 8 0 397 0 67 Low pressure setting 15 7 0 1 Low pressure recovery point 57 5 0 4 High pressure 180 275 1 242 1 895 High pressure setting 400 2 76 High pressure recovery point 307 2 1 DataMate 3000 Series Air Conditioner User Manual 50 Chapter 6 Maintenance 6 2 7 Compressor The compressor failure is generally classified into two types 1 Motor failure such as the winding burnout insulation failure short circuit between coils and so on 2 Mechanical failure such as compressing failure temperature switch failure and others Compressing failure indicates low operation pressure lt can be confirmed if the suction pressure and discharge pressur
16. the main menu can be changed Note If press Enter button from the Password screen instead of inputting any password the user can only view the menu and cannot change the parameters DataMate 3000 Series Air Conditioner User Manual Chapter 5 Microprocessor Control 35 5 5 Main Menu Press Enter button from the Normal screen enter password and then press Enter to validate the password the main menu is displayed as shown in Figure 5 7 Figure 5 7 Main menu The items in the main menu are listed below Alarm Menu For setting alarm parameters browsing alarm history and alarm status Setpoints For setting temperature and humidity parameters temperature and humidity precision parameters System Status For setting the system date and time and viewing environmental temperature and humidity readings the date time system output status and system operation records System Menu For setting system parameters configuring system optional components calibrating sensors changing password diagnosing components output and restoring default values 5 6 Alarm Menu Use the Up Down buttons to move the cursor to Alarm Menu in the main menu and press Enter The Alarm Menu will be displayed as shown in Figure 5 8 There are six sub menus under this menu and they are displayed in two screens Press Up Down buttons to scroll all sub menus Figure 5 8 Alarm Menu DataMate 3000 Series Air Conditioner User Man
17. 0 Sensor Calibrate menu 1 Use Up Down buttons to move the cursor to Temp Snsr and press Enter to set the tolerance of the temperature sensor The setting range is from 5 C to 5 C and the default setting is 0 C 2 Use Up Down buttons to move the cursor to Hum Snsr and press Enter to set the tolerance of the humidifier sensor The setting range is from 10 RH to 10 RH and the default setting is O RH DataMate 3000 Series Air Conditioner User Manual Chapter 5 Microprocessor Control 45 3 Use Up Down buttons to move the cursor to Reset and press Enter button If it is set to YES the tolerance settings will be reset to the defaults 5 9 4 Output Diagnose This function is used to detect the output status of the system components Select Output Diagnose item to set the items listed in Figure 5 31 Figure 5 31 Output Diagnose menu Press Up Down buttons to move the cursor to the component to be diagnosed and press Enter Press Left Right buttons to set it to ON If the main fan is set to ON the other components will be set to OFF automatically There is a time limit for output diagnosis When the unit enters output diagnosis status it will exit the status automatically and returns to normal operation if the output diagnosis status has not changed for a certain period of time 15 seconds for compressor and 5 minutes for other components 5 9 5 Change Password The new password will not be lost when power fails Select Chang
18. 1 2 Functions The DataMate3000 is a small precise environmental control system specially designed for electrical system room cooling Featuring high reliability high sensible heat ratio and big air volume the system is suitable for controlling the temperature and humidity optional in system or computer room to maintain a favorable environment for precise systems such as sensitive systems process control systems communication systems and computers This system has two models with nominal ratings of 7kW and 12kW respectively which can be selected according to the actual room heat loads Each DataMate3000 consists of an indoor direct expansion evaporator module and an outdoor air cooled condensing module Both modules are installed on the ground The system may also include optional heater and humidifier Models available for cooling only do not include heater and humidifier The standard DataMate3000 system includes cooling parts for temperature control The optional humidity control uses the optional heater and humidifier to keep the favorable humidity The DataMate3000 system has a controller that can automatically switch over to the required function cool heat dehumidify humidify based on the programmed setpoints and room conditions DataMate 3000 Series Air Conditioner User Manual 2 1 2 1 Chapter 1 Introduction Controller The system controller has a 128x64 matrix dot LCD screen with blue backlight The man machi
19. DataMate 3000 Series Air Conditioner User Manual Version V1 0 Revision date April 5 2005 BOM 31011132 Emerson Network Power provides customers with technical support Users may contact the nearest Emerson local sales office or service center Copyright O 2004 by Emerson Network Power Co Ltd All rights reserved The contents in this document are subject to change without notice Emerson Network Power Co Ltd Address No 1 Kefa Rd Science amp Industry Park Nanshan District 518057 Shenzhen China Homepage www emersonnetworkpower com cn E mail support emersonnetwork com cn Chapter 1 IntroductiON oooococnncnncnocoocccnnccccnnnnnonnnnnnnonnnnannnnonnnnnononnnnnnnss Product Model Information ooocinonocccccnncccccnncanonnconononcnncnnnnnnos FUNCIONA tiie in Verdict od anaes TZI CONTO lo ais 1 222 Teia e iii ita 1 23 Condenser adeentecceees ee a a a e vain teed Ge Environment Requirement cccccceeeceeeceeceeeceeeteeeeeeeteeeeeeetees 1 3 1 Operating Environment see eee eee eee 1 3 2 Storage Environment eee eee ee eee Main Parts OT 1 4 1 Evaporator Module 0 eee eee 1 4 2 Condensing Module sss 1 4 3 Pressure SWItch cc ccccccceceeeeeseneeeeeeeeeeseeeeneaeeeeeeeetees 1 4 4 Blower Speed Controller sse eee Optional lt Tn bead Aner nae aad tn el oi 1 5 1 Humidifier coartada iaa atienda 1102 Hetero enn atin eres 1 5 3 Remote Monitoring Softw
20. H Low Hum Cool Swtch Time Short Cyc EN Heat Run Hours Temp Snsr Pwr Fail Hum FT Sensor Hum Snsr Calibrate Custom 1 L FO Reset Custom 2 Chng Mfan 4 Main Fan Chng Hum H Compressor Smoke Snsr L ee a lagnose Heater Chng Fit H Fire Snsr Custom 1 TH High Water Humidifier Custom Alarm i Custom 2 Loss Air A Level One _ Change HL Pr Clog Password 4 Level Two Other Alrm i System Main Fan Run Time Reset Service Humidifier Chng Time Interval 7 Filter H Reset DataMate 3000 Series Air Conditioner User Manual
21. No 0 0 15 Cold Start 180 seconds 30 seconds 360 seconds Hot Start 10 seconds 10 seconds 240 seconds Start Delay System Main fan 30 seconds 10 seconds 240 seconds Setup Compressor 90 seconds 10 seconds 240 seconds C F Degrees C C F Hum Control Rel Rel ABS Beeper ON OFF ON Backlight ON OFF ON System Menu Contrast 30 28 38 Unit Sta SGL SGL HST SPR Host Time 24 hours 12 hours 48 hours Standby Optional Spare Time 24 hours 12 hours 48 hours Func Swtch Time 30 seconds 10 seconds 90 seconds Heat OFF OFF ON Hum OFF OFF ON FC OFF OFF ON Sensor Temp Snsr 0 0 C 5 0 C 5 0 C Calibrate Hum Snsr 0 0 RH 10 0 RH 10 0 RH Change Level One 0001 0000 9999 Password Level Two 0002 0000 9999 DataMate 3000 Series Air Conditioner User Manual Chapter 5 Microprocessor Control 33 5 4 Control Screen 5 4 1 Off Screen The LCD displays this screen after the system is powered on In addition it will be displayed by pressing the ON OFF button during system operation as shown in Figure 5 3 Figure 5 3 Off screen 5 4 2 On Screen When the system is in automatic turn on status after powered on the LCD displays the On screen Press the ON OFF button from the Off screen and the On screen will also be displayed as shown in Figure 5 4 Figure 5 4 On screen 5 4 3 Normal Screen After the system is powered on the Normal screen will be displayed after 10 seconds default for heat startup delay or after Enter button is
22. are eee ee eee eee 1 1 1 2 1 3 1 4 1 5 Chapter 2 Mechanical Installation 2 1 2 2 2 3 2 4 2 5 2 6 2 7 Contents Installation Considerations c cccccceceeeeeeeeceeeeeeeeteeeeetteeeeees Equipment Inspection ss ss see eee eee eee eee eee eee eee System Installation Arrangement eee e eee e 2 3 1 General Arrangement eee e eee e 2 3 2 System Installation Illustration eee eee eee ee 2 3 3 Unit Mechanical Parameters Evaporator Installation eee eee ee 2 4 1 Room Preparation 0 0 eee 2 4 2 Location Consideration esse 24 3 Installation Procedure eee Condenser installation eee 2 5 1 Location Considerations sss 2 5 2 Installation Procedure esse eee eee eee Piping CONNECTIONS Sarasit gee aa A ee iar ei 2 6 1 General Principle For Piping eee eee eee 2 6 2 Pipe Connections Required sees eee 2 6 3 Piping For Evaporator sese eee eee eee 2 6 4 Connecting Refrigerant Lines eee eee 2 6 5 Notice For Refrigerant Piping eee eee 2 6 6 Notice For Quick Connect Fittings oooooononncccnnnnncccicnc Checklist For Mechanical Installation sees Chapter 3 Electrical installation eee 20 3 1 Remove Electric Platerean ea cee iii 32T RE iii i ee teen eee eee eee eee eee 21 3 2 Connecting The Power Supply Of Evaporator sse eee eee e 21 3 3 Connecting The Power Supply Of Condenser cceccecceeeeeeseeceneeeeeeeeeeteenens 23 3 4 Connecting Control Cables sese eee eee e
23. are shown in Figure 2 3 and Table 2 2 Figure 2 3 Dimensions of evaporator unit mm The shadow in Figure 2 3 indicates a reasonable service access area The evaporator can be installed against a wall The mechanical parameters of the condenser are shown in Figure 2 4 and Table 2 2 DataMate 3000 Series Air Conditioner User Manual 9 10 Chapter 2 Mechanical Installation 1238 626 Figure 2 4 Dimensions of condenser unit mm Table 2 2 Mechanical parameters of condenser and evaporator E Evaporator Condenser Parameters DMEO07 DME12 DMCO7 DMC12 Gooingeanectyew 75 tes Dimensions W D H mm 600x550x1900 600x550x1900 702x353x626 702x353x1238 Nat weight 2 4 Evaporator Installation 2 4 1 Room Preparation The room should be well insulated and must have a sealed vapor barrier Use polyethylene as the vapor barrier of the ceiling and the wall Paint on concrete walls or floors should be vapor resistant Note The most important requirement for maintaining environmental control in the conditioned room is the vapor barrier Incoming fresh air should be kept to a minimum Incoming outside air adds to the heating cooling humidifying loads of the site It is recommended that outside air be kept below 5 of the total circulated in the room Doors and windows should be properly sealed to minimize leaks DataMate 3000 Series Air Conditioner User
24. e Password menu from the System Menu to set the level one and level two passwords as shown in Figure 5 32 Figure 5 32 Change Password menu Use Up Down buttons to move the cursor to the password to be changed and press Enter Use Left Right buttons to move the cursor to the digit to be changed and then Up Down buttons to change the value Press Enter to validate the password or press Esc to abort DataMate 3000 Series Air Conditioner User Manual 46 Chapter 5 Microprocessor Control 5 9 6 System Reset Use Up Down buttons to move the cursor to System Reset in the System Menu and press Enter Use Up Down buttons to set it to YES and press Enter to validating the setting Then all the setpoints will be restored to their default values but the operation time and alarm log will not be cleared Note As System Reset function will reset all the setpoints configured by the user be cautious to use it DataMate 3000 Series Air Conditioner User Manual Chapter 6 Maintenance 47 Chapter 6 Maintenance Switch off the circuit breaker to disconnect the system power supply before maintenance unless the power supply is necessary for a certain service item Even if the circuit breaker on the evaporator has been switched off the evaporator blower heater condenser blower and humidifier may still have hazardous voltage Therefore switch off the external circuit breaker to disconnect the power supply of the system 6 1 Electric Board
25. e are balanced and the motor does not rotate reversely The controller has powerful alarm and protection functions to ensure safe operation of the compressor The maintenance person should record the high pressure and low pressure readings and find out the cause of an alarm or a protection during periodical maintenance and inspection Note Avoid touching or contacting the gas and oils with exposed skin Wear long rubber gloves to handle contaminated parts Check according to the following procedures before replacing the compressor 1 Check if all fuses and circuit breakers are disconnected 2 Check the status of the pressure switch 3 Check Alarm History related to the compressor 4 Check the compressor operation record 5 Check the electrical function of the motor Note System contains refrigerant Recover refrigerant using standard recovery equipment before maintenance Procedures to remove and replace the failed compressor 1 Disconnect power 2 Attach suction and discharge gauges to access fittings 3 Recover refrigerant using standard recovery procedures and equipment DataMate 3000 Series Air Conditioner User Manual Chapter 6 Maintenance 51 Note Release of refrigerant to the atmosphere is harmful to the environment Refrigerant must be recycled in accordance with state and local regulations 4 Remove failed compressor 5 Follow manufacturer s instructions to clean out kits 6 Ins
26. e is a temperature switch on the surface of the heater and it will cut off the power supply of the heater when the surface temperature of the heater is too high When the surface temperature decreases to normal the heater will operate again automatically 1 5 3 Remote Monitoring Software The DataMate3000 communicates to the host and receives commands from the host by using its remote monitoring software through a RS485 port DataMate 3000 Series Air Conditioner User Manual 5 6 Chapter 2 Mechanical Installation Chapter 2 Mechanical Installation 2 1 Installation Considerations The evaporator should always be mounted on the floor in the system or computer room The condenser can be mounted outdoors or on the floor in another room Before installing the units check whether the environment complies with the requirement listed in Table 1 1 in section 1 3 and whether any building alteration is required to run piping wiring and duct work Carefully follow the design drawings and reserve proper clearances Refer to the submittal engineering dimensional drawings of individual units 2 2 Equipment Inspection When the DataMate3000 arrives inspect all items for any visible damage Do not accept a damaged unit from the shipper If possible do not uncrate the system until it is close to its final location All required assembles are packed and shipped in containers If you discover any damage when you uncrate the unit report it to the sh
27. e is the actual operation days of the component It is real time clock counter days and is unchangeable The Chng Time is the recommended operation days of the component It can be changed The default value is recommended Otherwise change it according to the actual condition The Reset indicates whether the component has been maintained or replaced or not Select YES if it is maintained or replaced and the service time will be reset to zero automatically and then be recounted again Otherwise select NO 5 7 Setpoints The setpoints will not be lost when power fails Select the Setpoints from the main menu and press Enter to configure the setpoints listed in Figure 5 17 Figure 5 17 Setpoints menu Use the Up Down buttons to select a certain item and press Enter to access the input data field Use the Up Down buttons again to increase or decrease the digit Press Enter to validate the new setpoint Refer to Table 5 1 for the defaults of the setpoints in Figure 5 17 and their setting ranges DataMate 3000 Series Air Conditioner User Manual 40 Chapter 5 Microprocessor Control 5 8 System Status Use the Up Down buttons to select System Status from the main menu and press Enter to view the system status information listed in Figure 5 18 Figure 5 18 System Status menu 5 8 1 T H Status The T H Status screen precisely displays the indoor temperature and humidity and the outdoor temperature as shown in Figure 5 19 Fi
28. ee 23 3 4 1 Remote Unit Shutdown Smoking And Fire Sensingd sss sse eee 24 34 2 CUstomAlarMS Cuida cabin ede teest cette ess 24 JAS GOA io AAA Pa ad epee Rae 25 3 4 4 Changeover And Standby Unit Enable 25 3 4 5 Monitoring Interface seene iee ehani aerae n aa E ene EEE 25 3 5 Checklist For Completing lnstailation sse eee eee 26 Chapter 4 System Commiasaion s sse eee eee eee 27 4 1 Inspection Before After Start ups eee 27 4 2 Speed Controlling For Condenser Blower sese eee 28 4 3 System Function Testind iii titans een AAA 28 AS Cooling OperatiOn eos lille 28 4 3 2 Heating Operation see eee eee ee eee 28 4 3 3 Humidification Operation sss eee eee eee 29 4 3 4 Dehumidification Operation esse eee eee 29 Chapter 5 Microprocessor Control eee eee eee 30 AA ein eens wis is ann T 30 5 2 Control BU ONS iii it dates ceras 30 5 3 OIDO S ii TA AA A IA IAE 31 54 Control creais eiii 33 54l A O 33 91432 ele sa A et a en 33 54 3 Normal SC isa tiesa 33 5 4 4 A 34 5 5 Main Men Una lia acts 35 07 Alarm MU 04 E A A AAA A AA 35 56 1 Alarm Stat S e t rmn a e a aa loathe aeaa arima 36 560 2 Alarmi FIS ct A eta a aes 36 5 0 3 Alarm Setpoint eraan nier enna aa dat eaae ral en EEEE ideas 37 50A Alarm OQUP cc 37 5 6 5 Custom Alam 38 5 6 6 Service Intervals sere 38 9 gt SOMOS seis on Aes ee a A EA Devnet tadas 39 AS A O 40 A NE aie edie eee eee Mee 40 58 2 Time Date inicia aa 40 00 39 QUIput Status coarrr A
29. en and silences the alarm 5 3 Setpoints The default setpoints have been configured before delivery They are configured according to the general operation status or optional components Change the DataMate 3000 Series Air Conditioner User Manual 32 Chapter 5 Microprocessor Control defaults only when they do not satisfy the user s requirement Refer to Figure 5 1 for the setpoints and the value range Users need to enter the password in corresponding level before changing the information such as setpoints date time and so on refer to section 5 4 4 Figure 5 1 Ssystem settable parameters Menu Parameter Default Min Max High Temp 30 C EEE eee setpoint 5 C Alarm Low Temp 18 C 5 C Temperature setpoint 5 C Setpoint l Humidity High Hum 60 RH setpoint 10 RH 90 RH Low Hum 40 RH 10 RH Humidity setpoint 10 RH oes Alarm observation alarms OPEN STOP OPEN Outputs major alarms OPEN CLOSE OPEN Custom Custom 1 No No Other alarms Alarm Custom 2 No No Other alarms eae Main Fan Chng Time 360 days 180 days 720 days nterval Humidifier Chng Time 180 days 90 days 360 days Filter Chng Time 180 days 90 days 360 days Temp Stpt 24 C 15 C 35 C Setpoin Tem Bias 3 C 1 C 5 C ts Hum Stpt 50 RH 20 RH 80 RH Hum Bias 5 RH 1 RH 10 RH Monitor Unit No 1 1 254 Teamwork emil Brd 0 0 15 Unit
30. erature brazed joints silver brazed joint should be used 6 Use prevailing refrigeration practices in piping supports leak testing dehydration and charging of the refrigeration circuits Use vibration isolating support to isolate the refrigeration piping from the building 7 Use a soft and flexible material to pack around the tubes to protect them when sealing openings in walls and to reduce vibration transmission 8 When installing the condenser above the evaporator for 6 meters the discharge line should be trapped at the evaporator This trap will retain refrigerant oil in the off cycle When the unit starts oil in the trap is carried up the vertical riser and returns to the compressor 2 6 6 Notice For Quick Connect Fittings Take great care when connecting the quick connect fittings Read through the following steps before making connection 1 Remove protector caps and plugs 2 Carefully wipe coupling seats and threaded surface with a clean cloth 3 Lubricate the male thread with refrigerant oil 4 Thread the coupling halves together by hand to ensure that the threads mate properly 5 Tighten the coupling body hex nut and union nut with a wrench of proper size until a definite resistance is felt DataMate 3000 Series Air Conditioner User Manual Chapter 2 Mechanical Installation 19 6 Use a marking pen to draw a line lengthwise from the coupling union nut to the bulkhead Tighten the nuts an additional quarter tu
31. ess Enter to enter the Custom Alarm menu as shown in Figure 5 13 Figure 5 13 Custom Alarm menu There are two custom alarms Custom 1 and Custom 2 Custom 1 is input through control terminal J67 Custom 2 is input through control terminal J68 Use Up Down buttons to move the cursor to the corresponding row and use Up Down buttons to toggle among no alarm smoke sensor fire sensor water under floor no airflow filter obstructed and others LCD displays No Alarm Smk Snsr Fire Snsr High Water Loss Air Fltr Clog and Others Press Enter to validate the setting 5 6 6 Service Intervals Service intervals are applicable to those components that require periodical maintenance The controller will trigger an alarm to remind the maintenance personnel to maintain the component when the set interval values are exceeded The main fan air filter and humidifier can be set with service intervals Refer to Table 5 1 for the defaults and setting ranges These settings will not be lost when power fails Select Service Intervals from the Alarm Menu and press Enter to display the items listed in Figure 5 15 DataMate 3000 Series Air Conditioner User Manual Chapter 5 Microprocessor Control 39 Figure 5 15 Service Interval menu Use Up Down buttons to move the cursor to the Main Fan and press Enter to enter the Main Fan Service Interval sub menu as shown in Figure 5 16 Figure 5 16 Main Fan Service Interval sub menu The Run Tim
32. first and connect this port to a host with a twist pair communication cable as shown in Figure 3 7 DataMate 3000 Series Air Conditioner User Manual 26 Chapter 3 Electrical Installation Removing the plate rs4as port Figure 3 7 RS485 port 3 5 Checklist For Completing Installation 1 The voltage supplied matches the voltage specified on the system nameplate 2 The power cables and the grounding cables at the power disconnection switch the evaporator and the condenser have been connected solidly 3 The ratings of the circuit breakers are correct when installing the system 4 Control connections have been completed 5 All connections are solid Tightened screws are not loose After the inspection read the next chapter to commission and operate the system DataMate 3000 Series Air Conditioner User Manual Chapter 4 System Commission 27 Chapter 4 System Commission 4 1 Inspection Before After Start up 1 Face plate No damage well insulated and clean 2 Filter Installed reliably no damage and clean 3 Power supply Measure and record phase to phase voltage before system is powered Power supply cables are connected reliably 4 Fan The rotation is correct after system starts up No obstruction material such as cables tubes etc in the discharge area The rated current of the fan motor is recorded The ac
33. ger than the dimensions of the condenser base as shown in Figure 2 9 2 5 2 Installation Procedure 1 Uncrate the condenser and place it onto the base 2 Secure the condenser with expansive bolts The installation sizes are shown in Figure 2 8 374 394 R6 617 Figure 2 8 Condenser installation dimensions unit mm 3 If multiple condensers are installed up and down refer to Figure 2 9 DataMate 3000 Series Air Conditioner User Manual 14 Chapter 2 Mechanical Installation Am 0 5m ma 5 _ YN S Airflow g Q O Note Use 5 angle ironas bracket when installing two AAA condensors up and down x Use 6 5 V iror as bracket when installing three Bracket condensors up and down 5 g y L Airflow 2 E je O 50mm g N 50mm Mir 50mm oe Base Condensor base Figure 2 9 Install multiple condensers up and down 2 6 Piping Connections 2 6 1 General Principle For Piping 1 Use copper pipes to connect the evaporator and the condenser Connections are quick screw thread connections If the line is too long and straight copper line is used piping joints must be brazed 2 Follow standard industry procedures in selection and placement of pipe supports system evacuation and charging with refrigerant only when pipeline is very long The standard refrigerant of this system is R22 3 Give considerations to pipeline pressure dro
34. gure 5 19 TH Status screen 5 8 2 Time Date The Time Date screen displays the current time of the system in the format of Year Month Date and Hour Minute Second Method of changing the time Press Enter button and use Left Right buttons to move the cursor to the digit to be changed Then use Up Down buttons to increase or decrease the value and finally press Enter to validate the value If the change is successful the current time will be changed to the set time automatically Otherwise the current time will not be changed The Time Date screen is shown in Figure 5 20 Figure 5 20 Time Date screen DataMate 3000 Series Air Conditioner User Manual Chapter 5 Microprocessor Control 41 5 8 3 Output Status The Output Status screen displays the current output status of the system Use Up Down buttons to scroll the items as shown in Figure 5 21 Figure 5 21 Output Status screen 5 8 4 Run Hours Run Hours screen displays the total operation hours of the system Press Up Down buttons to scroll the items as shown in Figure 5 22 Figure 5 22 Run Hours screen 5 9 System Menu Select System Menu from the main menu and press Enter to display the items listed in Figure 5 23 Figure 5 23 System Menu DataMate 3000 Series Air Conditioner User Manual 42 Chapter 5 Microprocessor Control 5 9 1 System Setup System settings will not be lost when power fails Select System Setup from the System Menu to display the items
35. ipper and to your supplier immediately DataMate 3000 Series Air Conditioner User Manual Chapter 2 Mechanical Installation 2 3 System Installation Arrangement 2 3 1 General Arrangement The system general arrangement diagram is shown in Figure 2 1 The recommended line size is shown in Table 2 1 Check valve gt Traps every 6m of a vertical lift gt e f ge Distributor 11 cd A li gor E Feeder tubes _4 UN _ 17 E E ae if Thermal I Sight expansion Liquid glass valve ll line J Discharge i i ae lt i drier g i Valve core 1 i E line 1 1 1 1 1 1 1 1 1 i 1 Female quick connect coupling Male quick connect coupling Condenser coil Solenoid valve Evaporator coil Sensing bulb Suction line Scroll compressor Figure 2 1 DataMate3000 general arrangement diagram Factory piping Field piping by others Check valve and traps are optional and not supplied by Emerson But they are recommended for field installation for proper circuit operation and maintenance They should be installed on site by technical personnel Solenoid valve is part of optional extended piping kit 7 Table 2 1 Recommended line size Actual capacity Length Discharge line O D Liquid line O D 7 5kW 6500 calories 2 2 tons 10m 1 2 12 7mm 3 8 9 52mm 12 5kW 10800 calories 3 6 tons 10m 5 8 15 88mm 1 2 12
36. ks 6 4 Maintenance Inspection Checklist Note Regular inspections are necessary to assure proper operation DataMate 3000 Series Air Conditioner User Manual 52 Chapter 6 Maintenance Liebert DataMate 3000 System Date Prepared by Model Serial Number Type Maintenance components Item Result Check for restricted airflow Filter Check the filter Clean the filter Check canister for mineral deposits Monthly Humidifier if applicable Check conditon of electrodes All hoses and fittings tight Fan section Impellers free of debris and move freely Bearings in good conditon Drain system including condensate pump Check and clean out unit drain lines humidifier and tray condensate pump and building drain line Semi annually Compressor section Signs of oil leaks Vibration isolation Speed regulation system Check the start point of the blower Check the speed regulation performance of the blower Refrigerant system Suction pressure Discharge pressure Superheat Evaporator tight and clean Check refrigerant level Check if there is evident temperature difference between both ends of the filter drier Air cooled condenser Condenser coil clean Motor mount tight Bearing in good conditon Refrigerant lines properly supported Electric board Check electrical connections Check the surface for
37. ly terminals as shown in Figure 3 2 Connect the condenser power cable delivered with the accessories to the evaporator terminal Power supply to condenser see Figure 3 2 and then to the relative terminal of the condenser refer to section 3 3 DataMate 3000 Series Air Conditioner User Manual 22 Chapter 3 Electrical Installation Power LE i LA A supply A ADS lt Terminal 25 26 terminal B LY Power supply to lt Eo condenser Hole for routing power cables Figure 3 2 Power supply terminals in evaporator Note 1 Use copper wiring only Ensure that all connections are solid when making connections 2 Make sure that power supply voltage matches the voltage specified on the system nameplate 3 A power disconnect switch is required in front of the power input of the evaporator to isolate the system for maintenance Connect the power cable to the disconnect switch and then to the system 4 System contains hazardous electrical voltage Cut the power supply to the system before operating in the system DataMate 3000 Series Air Conditioner User Manual Chapter 3 Electrical Installation 23 3 3 Connecting The Power Supply Of Condenser Connect the condenser power cable to the power supply terminal of the condenser as shown in Figure 3 3 Terminal PENNL L Power cable L N PE Cable clamp Slot screw driver Figure 3 3 Power supply terminals in condenser 3 4 Connecting
38. ne interface is easy to use Multilevel passwords are configured to prevent unauthorized operation The program is stored in non volatile memory The controller also has functions of high voltage low voltage protection phase failure protection and phase switchover in case of reverse phase rotation Users can acquire the accurate running time of major parts by browsing the menu Expert level troubleshooting system enables the LCD to display the fault information automatically for convenient maintenance The controller can store up to 30 history alarms It can communicate to a host through the RS485 port The control panel is shown in Figure 1 1 e EMERSON Mu Liebert Figure 1 1 Control Panel 1 2 2 Evaporator The DataMate3000 system uses a highly efficient fin tube heat exchanger and a centrifugal blower capable of delivering a high volume of air over a long distance It also includes a compliance scroll compressor which has a high energy efficiency ratio and ensures the high reliability of the system The filter is accessible by opening the front door which is convenient for maintenance DataMate 3000 Series Air Conditioner User Manual Chapter 1 Introduction 3 1 2 3 Condenser The condenser includes a high efficiency fin tube heat exchanger The blower includes a low noise propeller fan driven by a high performance single phase motor The motor is customized to adapt to the power network of base stations so it can work over a
39. ne must be trapped outside the unit Connecting humidifier drain line if applicable Connect the drain line to the drain outlet of the humidifier shown in Figure 2 11 and then trap the line outside the system room through the cutout shown in Figure 2 10 to a suitable place The units supplied with the optional humidifier have a DataMate 3000 Series Air Conditioner User Manual Chapter 2 Mechanical Installation 17 20mm 3 4 hose barb connection to drain the steam generating humidifier canister The drain line should be the full size of the drain connection Note The drain line must be trapped outside the unit The pipe material must be rated for the temperature of boiling water Use galvanized steel PP R or other suitable material for the drain line Connecting humidifier water supply line if applicable Connect the humidifier shown in Figure 2 11 and the water supply tube with a cable through the cutout shown in Figure 2 10 The units supplied with the optional humidifier package have a 20mm 3 4 in tube fitting connection for water inlet Supply pressure range is 0 7 kgf cm to 10kgf cm A shut off valve should be installed in this line to isolate the humidifier for maintenance 2 6 4 Connecting Refrigerant Lines Connecting discharge line Connect the discharge line between the evaporator refer to Figure 2 11 and the condenser refer to Figure 2 12 through the cutout of the evaporator shown in Figure 2 10
40. of the evaporator unit Open the front door and take it out directly as shown in Figure 6 1 Filter Figure 6 1 Taking out filter 6 2 2 Blower The blower package to be inspected includes motor impeller blower package fixation and clearance between blower and impeller Inspect the motor bearing and impeller thoroughly every month and remove any debris Check if the impeller is tightly mounted on the rotor of the motor and does nat rub against its neighboring metal components during rotation Since the blower package operates 24 hours every day continuously any unusual obstruction within the air circuit must be cleared in time to avoid damage of the cooling system and other system components caused by reduced air volume DataMate 3000 Series Air Conditioner User Manual Chapter 6 Maintenance 49 6 2 3 Drain Line Inspect the humidifier tray periodically for proper function of the drain line Ensure that there is no foreign matter or leak in the drain line 6 2 4 Heater If the optional heater is used maintain it periodically to ensure that no dust or foreign matter collects on its surface the heater is fixed solidly and its cable connection is reliable The heater generates heat continuously in normal situation Inspect the heater every six months for its normal operation 6 2 5 Thermal Expansion Valve The thermal expansion valve keeps the evaporator supplied with enough refrigerant to satisfy load conditions Measure the
41. or The base cutout locations of the evaporator are shown in Figure 2 10 5 Drain line Discharge line Liquide line Water supply line _ lt Cables ol TS lt Cutout Figure 2 10 Base cutout locations of evaporator The pipe junctions inside the evaporator unit are shown in Figure 2 11 DataMate 3000 Series Air Conditioner User Manual Chapter 2 Mechanical Installation YO Y Vas Tube fitting connection for humidifier water inlet 3 4 20mm Liquid line DME07 line O D 3 8 connection O D 5 9 16mm ON DME12 line O D 1 2 gt gt connection O D 3 4 20mm lt Discharge line l DME07 Humidifier optional line O D 1 2 drain outlet connection O D 3 4 20mm O D 3 4 20mm DME12 line O D 5 8 connection O D 7 8 22mm Figure 2 11 Pipe junctions inside evaporator unit Note If optional humidifier is not installed a P trap should be connected to the drain connecter of the evaporator coil Connecting evaporator drain line Use a 20mm 3 4 in hose barb connection to connect the drain line to the drain outlet of the evaporator shown in Figure 2 11 and then trap the line outside the system room through the cutout shown in Figure 2 10 to a suitable place The drain line must be located so it will not be exposed to freezing temperature The drain line should be the full size of the drain connection Note The drain li
42. p oil return to the compressor avoidance of oil logging in parts of the system and minimization of noise and vibration 4 Consult the factory if the equivalent length exceeds 50m or if the vertical difference between the evaporator and condenser exceeds the values in Table 2 3 5 The recommend values in Table 2 3 are equivalent length The loss of resistance caused by elbows and valves has been taken into consideration The installer should confirm if these values are appropriate for site conditions DataMate 3000 Series Air Conditioner User Manual Chapter 2 Mechanical Installation 15 Table 2 3 Vertical difference between compressor and condenser Condenser above compressor Max 20m Condenser below compressor Max 5m 2 6 2 Pipe Connections Required Refer to Figure 2 2 The following pipe connections are required 1 A drain line from the evaporator coil drain pan 2 Connections between the evaporator and condenser discharge line and liquid line The following pipe connections are required if condensate pump and humidifier are used 1 A drain line from the condensate pump 2 A water supply line to the humidifier and a drain line from it If a humidifier is used a drain line from the humidifier instead of the drain line from the evaporator coil drain pan should be connected Note During start up ensure that all piping connections have been completed without leaks 2 6 3 Piping For Evaporat
43. pressed The Normal screen displays the current temperature and relative humidity readings operating mode cool heat dehumidify humidify alarm information current date and time as shown in Figure 5 5 Figure 5 5 Normal screen DataMate 3000 Series Air Conditioner User Manual 34 Chapter 5 Microprocessor Control 5 4 4 Password Screen There are three levels of password in the microprocessor control Level one password 0001 is intended for the ordinary user Users can view all menus by entering this password but has no authority to change the parameters except for those of temperature and humidity Level two password is intended for trained service personnel Users can change all parameters by entering this password Level three password is intended for the manufacturer s personnel only Press Enter button from the Normal screen Password screen is displayed as shown in Figure 5 6 Figure 5 6 Password screen Method of entering password Press Left Right button to move the cursor to the digit to be changed and then Up Down button to change the value Press Enter button to validate the password and enter the main menu Press Esc button to return to the Normal screen If the password entered is incorrect the user can view the menu but cannot change the parameters The user can return to the Normal screen by pressing Esc button and enter the password again If the password entered is correct any parameter under
44. rn with two wrenches The misalignment of the lines shows how much the coupling has been tightened The final quarter turn is necessary to ensure that the joint does not leak Two wrenches must be used to cooperate each other during connection because one wrench can damage the coupling copper lines easily If a torque wrench is used the torque values in Table 2 4 are recommended Table 2 4 Recommended torque value for quick connect fittings Coupling size kgf cm 6 0 7 0 8 10 11 2 5 3 2 2 7 Checklist For Mechanical Installation 1 Proper clearances for service access have been maintained around the system 2 Equipment is vertical and mounting fasteners are tight 3 Piping is completed to refrigerant loop The valves of the quick connects have been fully opened 4 Condensate pump is installed if required 5 Drain line is connected 6 Water supply line is connected to humidifier if required 7 All piping connections are tight 8 Foreign materials have been removed from in and around all system installed shipping materials construction materials tools and so on 9 Fans and blowers rotate freely without unusual noise After the inspection read the next chapter to make electrical connections DataMate 3000 Series Air Conditioner User Manual 20 Chapter 3 Electrical Installation Chapter 3 Electrical Installation Electrical connections to be made at the installation site are 1 Po
45. sensitivity setpoint too small Increase the temperature sensitivity setpoint Low pressure alarm Refrigerant leaked Check for leaking place and recharge External environment temperature too low Contact Emerson High temperature alarm High temperature setpoint unreasonable Change the setpoint Room cooling load exceeds the system capacity Check for room seal or make capacity extension Low temeperature alarm Low temperature setpoint unreasonable Change the setpoint Heater operation current unreasonable Check the heater operation High humidity alarm Setpoint unreasonable Change it Vapor barrier is not done in the room Check for the vapor barrier Low humidity alarm Humidifier not used Use optional humidifier Humidifier needs to be serviced Check the humidifier Setpoint unreasonable Change it Power failure alarm Mains voltage abnormal Check the input power Power connection incorrect Check the input power Service alarm A service interval is end Service relative components and reset the alarm DataMate 3000 Series Air Conditioner User Manual Appendix Control System Menu Structure 55 Appendix Control System Menu Structure
46. setpoint and sensitivity to require humidification Humidity sensor failure Humdity display will indicate dashes Check wiring from temperature humidity board to the control board Heater does not operate Heat function disabled Set Heat to OPEN refer to section 5 9 2 No heat demand from controller Increase temperature setpoint to erquire heating Elements is burned out Trun off power Check element continuity with Ohm meter Display abnormal Static discharge Disconnect the system power and then restart Loose connection between keypad and control board Connection tightening after power off and then restart No display and control pads do not respond Equipment operates normally Connection between keypad and control board open Check the connection between keypad and control board Keypad failure Replace the keypad DataMate 3000 Series Air Conditioner User Manual 54 Chapter 7 Troubleshooting Symptom Possible cause Check or remedy No display control ler does not respond Equipment has no output Equipment power voltage too low Check for power voltage Communication between control board and interface board interrupted Check connection between control board and interface board Short cycle alarm Room cooling load is small compared with system capacity Increase the temperature sensitivity setpoint Temperature
47. ss Enter to display the Standby sub menu as shown in Figure 5 29 DataMate 3000 Series Air Conditioner User Manual 44 Chapter 5 Microprocessor Control Figure 5 29 Standby sub menu 1 Use Up Down buttons to move the cursor to Unit Sta in the Standby sub menu and press Enter to set the system to HST Duty unit SPR Standby unit or SGL Single unit The default setting is HST 2 Use Up Down buttons to move the cursor to Host Time and press Enter to set the operation cycle of the duty unit The setting range is from 12 hours to 48 hours and the default setting is 24 hours 3 Use Up Down buttons to move the cursor to Spare Time and press Enter to set the operation cycle of the standby unit The setting range is from 12 hours to 48 hours and the default setting is 24 hours 4 Use Up Down buttons to move the cursor to Switch Time and press Enter to set the system transfer time delay The setting range is from 10 seconds to 90 seconds and the default setting is 30 seconds When the Unit Sta is set to SPR or SGL The Host Time Spare Time and Switch Time can be set but they are invalidated 5 9 3 Sensor Calibrate The technical person can use this function and a precise instrument 0 1 C or 0 1 RH in precision to calibrate the temperature sensor and humidifier sensor The settings will not be lost when power fails Select Sensor Calibrate item from the System Menu to calibrate the items listed in Figure 5 30 Figure 5 3
48. tall replacement compressor and make all connections Do pressurization and leakage tests to the system at approximately 150PSIG 1034kPa 7 Evacuate the system twice to 1500 microns and the third time to 500 microns Break the vacuum each time with clean and dry refrigerant to 2PSIG 13 8kPa 8 Charge the system with refrigerant based on the requirements of the evaporator condenser and lines 9 Apply power and operate the system Check for proper operation Refer to the circulation suction pressure and discharge pressure ranges in normal operation and supplement some refrigerant if necessary 6 3 Condenser 6 3 1 Refrigeration System Each month the components of the refrigerant system should be inspected for proper function and signs of wear Refrigerant lines must be properly supported and not allowed to vibrate against ceiling floors or the unit frame Inspect all refrigerant lines every six months for signs of wear 6 3 2 Air Cooled Condensing Units Use compressed air or fin cleaner alkalescence to clean the condenser of all debris that inhibits airflow The compressed air should be blown at the reversed airflow direction In winter do not let snow to accumulate around the side or underneath the condenser At the same time check for bent or damaged coil fins and repair as necessary Check all refrigerant lines and capillaries for vibration and support as necessary Carefully inspect all refrigerant lines for signs of oil lea
49. tual current of the fan motor is recorded 5 Humidifier if applicable Water supply line is connected Water level sensor is installed reliably Drain line is connected 6 Heater if applicable Heating components are reliable The heater current is recorded 7 Condenser The condenser location complies with the requirement Pipeline is supported and pitched properly The trap is installed in a correct position 8 Others The user s setpoints are recorded Return air temperature suction pressure head pressure compressor current and discharge air temperature are recorded DataMate 3000 Series Air Conditioner User Manual 28 Chapter 4 System Commission 4 2 4 3 4 3 1 Speed Controlling For Condenser Blower The condenser blower controller has been set before delivery No additional setting is needed If some setting needs to be adjusted contact a service engineer of Emerson System Function Testing Note The system contains hazardous electrical voltage Cut the power before testing the system Test should be made under the direction of the Emerson custom support engineer or trained engineer Cooling Operation According to section 5 7 set the temperature setpoint to 5 C 10 F lower than the room temperature The controller should send a cooling command and the compressor should start running Three minutes later change the setpoint to a temperature of 5 C 10 F higher than the room temperat
50. ual 36 5 6 1 Chapter 5 Microprocessor Control Alarm Status Select Alarm Status from the Alarm Menu to enter the Alarm Status screen This screen displays all active alarms The alarm No the total number active alarm name the time date occurrence are indicated for each alarm as shown in Figure 5 9 Figure 5 9 Alarm Status screen The latest alarm is shown as alarm 1 Use Up Down buttons to scroll if there are more alarms This system can store up to 15 latest active alarms They will be lost when the system is powered off 5 6 2 Alarm History Select Alarm History from the Alarm Menu screen to view the Alarm History screen The screen displays the detailed inactive alarm information or No alarms if no inactive alarm exists The alarm No the total number inactive alarm name the time date occurrence are indicated for each alarm as shown in Figure 5 10 Figure 5 10 Alarm History screen Use Up Down buttons to scroll if there are more alarms This system can store up to 30 latest inactive alarms They will not be lost when the system is powered off DataMate 3000 Series Air Conditioner User Manual Chapter 5 Microprocessor Control 37 5 6 3 Alarm Setpoint The alarm setpoints will not be lost when power fails Select Alarm Setpoint from the Alarm Menu to browse or change the setpoints listed in Figure 5 11 The defaults are sufficient for most applications and changing them is normally unnecessary
51. ure If the compressor is deactivated cooling operation is normal Note Change the setpoint to the default or the original point after the test 4 3 2 Heating Operation According to section 5 7 set the temperature setpoint to 5 C 10 F higher than the room temperature The controller should send a heating command and the heater should be activated Set the setpoint to be lower than the room temperature If the heater is deactivated heating operation is normal Note Change the setpoint to the default or the original point after the test DataMate 3000 Series Air Conditioner User Manual Chapter 4 System Commission 29 4 3 3 Humidification Operation According to section 5 7 set the humidification setpoint to 10 higher than the room relative humidity The controller should send a humidification command and the canister humidifier is activated Set the setpoint to be lower than the room relative humidity If the humidifier is deactivated humidification operation is normal Note Change the setpoint to the default or the original point after the test 4 3 4 Dehumidification Operation According to section 5 7 set the humidification setpoint to 10 lower than the room relative humidity The controller should send a dehumidification command and the blower runs at low speed Set the setpoint to be higher than the room relative humidity If the blower runs at high speed dehumidification operation is normal
52. ve sight glass and filter dryer 1 4 2 Condensing Module The condensing module consists of a fan a condenser and a fan motor 14 3 Pressure Switch High and low pressure switches are used to protect the refrigerant system The action point of the high pressure switch is 2 76MPa and the recovery point is 2 1MPa The action point of the low pressure switch is 0 12MPa and the recovery point is 0 25MPa 1 4 4 Blower Speed Controller The controller regulates the air volume of the blower automatically according to the condensate pressure of the system to maintain a favorable temperature Thus the compressor can work normally even if the outdoor temperature is very low 1 5 Optional Parts 1 5 1 Humidifier It adds pure water vapor up to 2kg hour to the room air to control humidity within the levels recommended for computer system The humidifier components include the steam canister with automatic flushing circuit inlet tube drain solenoid valve and steam distributor Note 1 The electric humidifier should be factory installed and tested 2 Humidity control is available only if a humidifier is provided DataMate 3000 Series Air Conditioner User Manual Chapter 1 Introduction 1 5 2 Heater The optional heater is a ceramic heater with positive temperature coefficient lt is safe and reliable When the surface temperature is high it will reduce the heating power to avoid danger caused by over temperature Ther
53. wer supply to the evaporator unit 3xL N PE 2 Power supply to the condensing unit L N PE 3 Wiring for monitoring and control if remote controls applicable 4 Control wiring for master standby transfer if applicable All power and control wiring and ground connections must be in accordance with the applicable local codes Refer to unit nameplate for full load ampere Cable size should be in accordance with the applicable local codes Mains requirement 380Vac 50Hz 3xL N PE Note 1 Only trained engineer can make electrical connection 2 Measure input power supply voltage with a voltmeter to ensure that power supply has been disconnected before making connections DataMate 3000 Series Air Conditioner User Manual Chapter 3 Electrical Installation 21 3 1 Remove Electric Plate The electric plate is installed in the front of the evaporator unit Open the front door of the evaporator Unscrew the screws on the plate with a Philips screwdriver raise the plate and then move it horizontally to remove the plate as shown in Figure 3 1 Electric plate Figure 3 1 Removing electric plate 3 2 Connecting The Power Supply Of Evaporator The power supply terminals are shown in Figure 3 2 A power disconnect switch is required to isolate the system for maintenance Connect the supply power cable to the disconnect switch and then to the evaporator power supp
54. wide voltage range with a high reliability 1 3 Environment Requirement 1 3 1 Operating Environment Refer to Table 1 1 for detailed operating environmental requirements Table 1 1 Operating environmental requirements of DataMate3000 system Item Requirement The max equivalent horizontal distance of the Installation position evaporator and condensing modules 50m Altitude distance A H 5m lt A H 20m Installation method Vertical Environmental temperature Indoor 0 C 30 C Outdoor 15 C 45 C Relative humidity 30 80 RH Protection level Condensing module IPX4 Range of operation voltage 380V125 A negative altitude distance means that the condenser is mounted below the compressor 1 3 2 Storage Environment Refer to Table 1 2 for detailed storage environmental requirements Table 1 2 Storage enriromental requirements of DataMate3000 system Item Requirement Storage environment Indoor without dust Relative humidity 5 95 RH Envi tal nvironmenta A0 C 70 C temperature The shipment and storage time should not exceed 12 months Storage time Otherwise the system shall be re tested DataMate 3000 Series Air Conditioner User Manual 4 Chapter 1 Introduction 1 4 Main Parts 1 4 1 Evaporator Module The evaporator module consists of an evaporator a compressor a heater optional blower controller humidifier optional thermal expansion val
55. with any external alarm if the unit provides a set of normally open dry contacts The custom alarm needs to be set in the controller refer to section 5 6 5 When the contacts close the unit will activate an audible alarm and display the alarm on the LCD If a computer is connected using the monitoring software of Emerson the alarm will also be raised at the computer DataMate 3000 Series Air Conditioner User Manual Chapter 3 Electrical Installation 25 3 43 General Alarm Terminal J10 is for general alarm output It connects the general alarm relay that provides a set of normally open dry contacts which will close when a major alarm is registered lt can be used to raise an alarm in a remote location or signal a building management system or auto dialing pager system 3 44 Changeover And Standby Unit Enable Terminals J9 and J18 are for duty standby system changeover terminal and standby system enable terminal Two systems can be linked so that one is a duty system and the other is a standby system The connection is shown in Figure 3 6 Standby unit _ Duty standby unit enable J18 changeover J9 Duty unit l y Standby unit Duty standby unit __ Standby unit changeoverJ9 f A enable J18 Figure 3 6 Duty standby mode connection 3 4 5 Monitoring Interface The RS485 port is on the back of the evaporator front door under a protective plate Remove the plate
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