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17. In the System Control configuration parameter, use the

UP

or

DOWN

arrow button to select

1

.

18. Press the

ENT

button.

The display flashes "

888

" if the command is accepted.

19. Press the

ESC

button to display

C24

.

All fans should return to a normal speed based on the pressure input and the state of indoor
unit’s compressor.

Vertiv

| Liebert® MCV™ Installer/User Guide |

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Summary of Contents for Liebert MC

Page 1: ...Liebert MCV 60 Hz High density Microchannel Condenser Installer User Guide...

Page 2: ...any installation or operational issues with your product check the pertinent section of this manual to see if the issue can be resolved by following outlined procedures For additional assistance visi...

Page 3: ...l Oil Requirements 17 5 2 System Dehydration Leak Test 17 5 3 Charging Condensers with DSE Receivers 17 6 Electrical Connections 19 6 1 Line Voltage Wiring 20 6 1 1 Acceptable Power Supplies 380 V to...

Page 4: ...oil 37 11 3 Replacing the Condenser Fan 37 11 3 1 Verifing the Fan Address 43 11 4 Replacing the Premium efficiency Control Board 47 11 4 1 Preparing to Replace the Board 47 11 4 2 Installing the Repl...

Page 5: ...nents require and receive power even during the Unit Off mode of the controller The only way to ensure that there is NO voltage inside the unit is to install and open a remote disconnect switch Refer...

Page 6: ...ing and or installing the fan assembly must meet OSHA requirements Use handling lifting equipment rated for the weight of the fan assembly Use ladders rated for the weight of the fan assembly and tech...

Page 7: ...nfiguration Number Example Digit Description Digits 1 and 2 Unit Family MC Microchannel Condenser Digit 3 Platform Size V V coil arrangement Digits 3 6 Nominal Capacity kW 330 330 kW 440 440 kW Digit...

Page 8: ...ts 22 25 Factory Configuration Number Table 2 2 MCV Model number Digit Definitions continued 2 2 Component Location The unit component locations are described in the submittal documents included in th...

Page 9: ...es and Features 2 4 1 Premium Efficiency Control EC Fan Premium Efficiency Controls and EC fans are matched to provide superior system energy efficiency The premium control board allows CANbus communi...

Page 10: ...tage terminal block is provided on condensers to allow monitoring of the SPD alarm circuit ASCO Series 420 surge protective device provides 50 kA per mode of surge current protection An illuminated gr...

Page 11: ...es Condensers must not be installed in a pit Condensers must be installed on a level surface to ensure proper refrigerant flow Condensers must not be installed below the indoor unit Condensers must be...

Page 12: ...Vertiv Liebert MCV Installer User Guide 12 This page intentionally left blank...

Page 13: ...e the unit for installation NOTICE Risk of improper lifting Can cause equipment damage Make sure that the spreader bars wider are than the unit If the spreader bars are too short the slings may crush...

Page 14: ...d securing brackets are located on each end of the unit Before operating the unit remove the panels and brackets from both ends of the unit Figure 4 1 below Figure 4 1 Shipping panels and securing bra...

Page 15: ...der high pressure Use extreme caution when charging the refrigerant system Do not pressurize the system higher than the design pressure marked on the unit s nameplate Consult local building and plumbi...

Page 16: ...raps on hot gas discharge lines at the base of vertical risers over 5 ft 1 5 m and every 20 ft 6 m for vertical rises over 25 ft 7 6 m then install a trap in 20 ft 6 m increments or evenly divided ove...

Page 17: ...required for each circuit The need for additional oil is affected by compressor type piping lengths receiver and total refrigerant charge 5 2 System Dehydration Leak Test Refer to the indoor unit s I...

Page 18: ...Vertiv Liebert MCV Installer User Guide 18 This page intentionally left blank...

Page 19: ...ler does not isolate power from the unit even in the Unit Off mode Some internal components require and receive power even during the Unit Off mode of the controller The only way to ensure that there...

Page 20: ...for specific electrical requirements Liebert MCV condenser power connections are provided for three phase wires and 1 earth ground wire Line voltage electrical service is required for all condensers a...

Page 21: ...20V line to ground 480V Wye with solidly grounded neutral and 277V line to ground Wye with high resistance or impedance ground Delta with corner ground 6 1 2 Unacceptable Power Supplies Delta without...

Page 22: ...Vertiv Liebert MCV Installer User Guide 22 This page intentionally left blank...

Page 23: ...cted to an unacceptable power supply see Unacceptable Power Supplies on page 21 10 Verify that the CANbus wiring CANbus END of Line jumper position and the CANbus Device Address DIP Switch setting is...

Page 24: ...equipment should be done only by qualified personnel wearing appropriate OSHA approved PPE who have been specially trained in the installation of air conditioning equipment WARNING Risk of contact wit...

Page 25: ...ff Recheck lights with disconnect switch in the On position SPD red LED is illuminated A surge exceeding the rating of the SPD has occurred Replace SPD and inspect other components for damage and repl...

Page 26: ...Vertiv Liebert MCV Installer User Guide 26 This page intentionally left blank...

Page 27: ...sducer fails the condenser uses temperature sensors to control the fan speed based on the liquid line temperature The condenser fans continue to operate for approximately 30 seconds after compressors...

Page 28: ...Figure 9 1 Premium efficiency fan control board Vertiv Liebert MCV Installer User Guide 28...

Page 29: ...nating ID and example compressor 1 pressure of 16 1 Figure 9 3 Initial Display on the Controller 10 1 2 Navigating the Controller interface Main Menu At the initial display press ESC to display the fi...

Page 30: ...d be changed only by properly trained and qualified personnel or as directed by the factory 10 1 3 Analog Signals Menu In the analog signals menu F press ENT to enter the analog signal items described...

Page 31: ...al speed RPM RPM F41 EC Fan 4 requested speed F42 EC Fan 4 power kW kW F43 EC Fan 4 firmware version Hex format Hex format F50 Subcooling 1 F C F51 Subcooling 2 F C F90 Firmware Version Major 1 02 004...

Page 32: ...nd Table 9 3 on page 34 for descriptions of the system and EC fan alarms The item ID is the sequence number of the history alarms The item ID and alarm information ID display alternately When there ar...

Page 33: ...low alarm 013 Condenser pressure 2 low alarm 014 EC Fan speed mode maximum must be overridden due to condenser pressure 1 high Condenser pressure 1 high No action is needed 015 EC Fan speed mode maxim...

Page 34: ...ce EC Fan For cause 3 check ambient temperature 1 4 09 EC Fan phase failure alarm Phase failure Check power supply 1 4 10 EC Fan specific uncategorized alarm detected Internal EC Fan issue Re boot con...

Page 35: ...enclosures Service and maintenance work must be performed only by properly trained and qualified personnel and in accordance with applicable regulations and manufacturers specifications Opening or rem...

Page 36: ...2 1 When to Clean the Condenser Coil Normal conditions typically dictate cleaning twice a year in spring and fall On site or area conditions such as cottonwood trees construction etc can increase cle...

Page 37: ...personal protective equipment PPE per NFPA 70E before working within the electric control enclosure Failure to comply can cause serious injury or death Customer must provide earth ground to unit per N...

Page 38: ...ssembly Use ladders rated for the weight of the fan assembly and technicians if used during installation Refer to handling lifting and or installation equipment operating manual for manufacturer s saf...

Page 39: ...er jacket should only extend far enough into the enclosure to make the electrical connections 3 Not used on last fan 4 Communication cable connection to the next fan Not used on last fan 5 Communicati...

Page 40: ...g equipment or an adequate number of personnel to remove the EC fan from the condenser NOTE A spreader bar may be required for the lifting equipment if only one technician is performing the fan replac...

Page 41: ...low to establish a default control configuration for the board Item ID Meaning Default Notes P01 Enter Preparation Mode 0 Setting this value to 1 enables preparation mode All other P menu items are di...

Page 42: ...ct parameter depends on the supplier of the fan that will be addressed C00 EBM Papst fan C01 Ziehl Abegg fan 33 Press the ENT button 34 Use the UP or DOWN arrow button to the correct fan address numbe...

Page 43: ...5 Use the UP or DOWN arrow button to select 0 6 Press the ENT button The reads 888 if the command is accepted 7 Press the ESC button to display C24 8 Use the UP or DOWN arrow button until C34 display...

Page 44: ...to select 1 18 Press the ENT button The display flashes 888 if the command is accepted 19 Press the ESC button to display C24 All fans should return to a normal speed based on the pressure input and...

Page 45: ...solute min 2 12 0 bar 174 psi 18 0 bar 261 psi 14 0 bar 203 psi 20 0 bar 290 psi R410a 16 24 bar 232 347 psi C14 Condenser pressure PID Kp 1 00 1 00 1 00 1 00 Do not change unless properly instructed...

Page 46: ...en C24 is set to 0 C35 EC Fan2 request speed 0 0 0 0 C36 EC Fan3 request speed 0 0 0 0 C37 EC Fan4 request speed 0 0 0 0 C38 EC Fan Reverse Request 0 0 0 0 Off 1 On C39 EC Fan startup speed offset for...

Page 47: ...NO voltage inside the unit is to install and open a remote disconnect switch Refer to unit electrical schematic Follow all local codes 11 4 1 Preparing to Replace the Board 1 Verify that the following...

Page 48: ...vailable utility power The Liebert controller does not isolate power from the unit even in the Unit Off mode Some internal components require and receive power even during the Unit Off mode of the con...

Page 49: ...switch from On to Off 15 Change the jumper positions for J2 J4 J5 and J6 to match the control board that was removed If the condenser is the last device on the CANbus communication line move the jump...

Page 50: ...and authorized service personnel extended service contracts and factory certified replacement parts Contact your local sales representative for more details Check all that apply 1 Coil clean and free...

Page 51: ...Economizer 1 Check for refrigerant leaks 2 Check Re torque wire connections 3 Check contactors for pitting replace if pitted 4 Verify pump speed control operation 5 Check pump mounting Vertiv Liebert...

Page 52: ...or your records Compare readings information to previous maintenance worksheet To locate your local Vertiv representative for Vertiv engineered parts check https www vertivco com en us support or Call...

Page 53: ...Vertiv Liebert MCV Installer User Guide 53...

Page 54: ...Vertiv Liebert MCV Installer User Guide 54 This page intentionally left blank...

Page 55: ...rt Channel Products 1 800 222 5877 Liebert AC and DC Power Products 1 800 543 2378 A 2 Locations United States Vertiv Headquarters 1050 Dearborn Drive Columbus OH 43085 USA Europe Via Leonardo Da Vinc...

Page 56: ...Vertiv Liebert MCV Installer User Guide 56 This page intentionally left blank...

Page 57: ...onal Data MCV330 DPN004209 Cabinet and Floor Planning Dimensional Data MCV440 PipingSchematic DPN004476 Piping Schematic Liebert MCV with Liebert DSE models DA125 to DA250 PipingConnections DPN003877...

Page 58: ...Vertiv Liebert MCV Installer User Guide 58 This page intentionally left blank...

Page 59: ...REV 1 REV DATE 2 17 DPN003871 Page 1 1 MCV330 Form No DPN001040_REV4 COMPONENT LOCATION DIAGRAM LIEBERT MCV 1 Electric Box 1 2 Coils 12 3 EC Fans 6 3 1 2 FRONT...

Page 60: ...orm No DPN001040_REV4 CABINET ATTACHMENT DIMENSIONAL DATA LIEBERT MCV NOTES 1 Condenser requires 36 914mm of service clearance on all sides 2 Preliminary assembly weight 3 200 lbs 1451 kg 132 3353mm 6...

Page 61: ...4mm 2 3 4 70mm 4 1 2 114mm 4 1 16 104mm 8 3 16 207mm NOTES 1 Underside of unit coil and fan removed for clarity 2 Eight 1 2 bolts required to mount condenser Bolt grade to be specified by local requir...

Page 62: ...1 1 MCV330 Form No DPN001040_REV4 PRIMARY CONNECTION LOCATIONS LIEBERT MCV LIQUID CIRCUIT 1 HOT GAS CIRCUIT 1 LIQUID CIRCUIT 2 HOT GAS CIRCUIT 2 Hot Gas Line Liquid Line 1 2 Connection Sizes OD in Co...

Page 63: ...2 FAN 1 CIRCUIT 1 FAN 3 CIRCUIT 2 FAN 3 CIRCUIT 2 FAN 2 CIRCUIT 1 FAN 2 2 1 A KEY ELECTRICAL DETAILS 1 Three phase electrical service Terminals are on bottom of disconnect switch Three phase service...

Page 64: ...CAN ON SW6 1 2 3 DETAIL 3 JUMPER AND DIPSWTICH LOCATION CONDENSER CONTROL BOARDS FACTORY SET CONDENSER A B SEE SHEET 2 FOR COMPONENT NOTES CABLE NOTES WIRE NOTES CIRCUIT 1 J6 1 3 CAN ON SW6 CAN ON SW6...

Page 65: ...ATED TO MEET LOCAL CODES AND CONDITIONS EXAMPLES BELDEN 89207 PLENUM RATED OR ALPHA WIRE 6454 CATEGORY 5 5E OR HIGHER 2 DO NOT RUN IN SAME CONDUIT RACEWAY OR CHASE AS HIGH VOLTAGE WIRING 3 FOR CANBUS...

Page 66: ...001040_REV4 MCV440 CABINET ATTACHMENT DIMENSIONAL DATA LIEBERT MCV NOTES 1 Condenser requires 36 914mm of service clearance on all sides 2 Preliminary assembly weight 3 085 lbs 1399 kg Main Electrical...

Page 67: ...red to mount condenser Bolt grade to be specified by local requirements Main Electrical Box End A O 9 16 14mm 2 PLACES 1 25mm 1 25mm DETAIL B 2 1 8 54mm 2 3 4 70mm 4 1 2 114mm 4 1 16 104mm 8 3 16 207m...

Page 68: ...REV 1 REV DATE 10 17 DPN004210 Page 1 1 MCV440 Form No DPN001040_REV4 COMPONENT LOCATION DIAGRAM LIEBERT MCV 1 2 3 1 Electric Box 1 2 Coils 16 3 EC Fans 8 FRONT...

Page 69: ...1 1 MCV440 Form No DPN001040_REV4 PIPING CONNECTION LOCATIONS LIEBERT MCV Hot Gas Line Liquid Line 1 2 Piping Connection Diameter O D in Condenser Circuit 1 3 8 1 5 8 Hot Gas Circuit 2 Liquid Circuit...

Page 70: ...uit 2 Fan 4 1 2 KEY ELECTRICAL DETAILS 1 Three phase electrical service Terminals are on bottom of disconnect switch Three phase service not by Liebert 2 Earth ground Field lug terminal for earth grou...

Page 71: ...ired for systems with or without EconoPhase unit 5 All indoor and outdoor field refrigerant piping must be insulated 1 2 minimum thickness All outdoor insulation must be UV and ozone resistant 6 Compo...

Page 72: ......

Page 73: ...logos referred to are trade names trademarks or registered trademarks of their respective owners While every precaution has been taken to ensure accuracyand completeness herein Vertiv Co assumes no r...

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