Rittal 3311.490 Assembly And Operating Manual Download Page 37

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Rittal LCU DX

11 Technical specifications

11.7.3 Circuit diagram, external unit

Fig. 22:

Circuit diagram, external unit

IPM boar

Invert

er boar

Motherboar

Ext

ernal t

emper

atur

sensor

Regist

er sensor

Hot gas sensor

Electr

onic

pansion

valve

4-way valve

Compressor heat

Floor heating

fan

mot

Compr

essor

Main supply lead

3 x 2.5 mm²

se as per table

Connection cable

int

ernal unit

3 x 2.5 mm²

ilot wir

3 x 0.75 mm²

Only shielded cable should

be used as the pilot wir

Inductor coil

Summary of Contents for 3311.490

Page 1: ...LCU DX Assembly and operating instructions 3311 490 3311 491 3311 492 3311 493 ...

Page 2: ... read this documentation carefully and pay particular attention to the safety instructions in the text and to section 2 Safety instructions This is the prerequisite for secure assembly of the LCU DX safe handling and the most trouble free operation possible Please keep the complete documentation readily availa ble so that it is always on hand when needed We wish you every success Your Rittal GmbH ...

Page 3: ...ssembly procedure 12 5 2 1 Preparatory tasks 12 5 2 2 Mounting the internal unit 13 5 2 3 Mounting the internal unit accessories 13 5 2 4 Mounting the external unit 14 6 Installation 16 6 1 General information 16 6 2 Notes on pipework 16 6 3 Connecting the condensate discharge 18 6 4 Electrical connection 18 6 4 1 General 18 6 4 2 Connecting the external unit 19 6 4 3 Connecting the internal unit ...

Page 4: ...struction specifications for the ventilation system also applies in conjunction with these assembly and operating instructions 1 6 Normative instructions 1 6 1 Legal information concerning the operating instructions We reserve the right to make changes in content Rittal GmbH Co KG and or Hannich GmbH are not respon sible for any damage which may result from failure to comply with these assembly an...

Page 5: ...rt up again automatically following a power disruption Danger Hot components may cause in jury The external unit and the pipelines are hot during operation and may cause burns on direct contact Danger Risk of poisoning from refriger ant gases created under the influence of heat When carrying out welding and solder ing work shortness of breath or asphyx iation may occur The refrigerant is heavier t...

Page 6: ...idual responsible for the cooling system together with the address and telephone number of the fire brigade police hospitals and burn victims centres 2 Type of refrigerant R410A comprising 50 di fluoromethane R32 CH2F2 and 50 R125 penta fluoroethane C2HF5 3 Instructions for switching off the cooling system in an emergency see section 7 2 3 Switching off in an emergency 4 The maximum permissible pr...

Page 7: ...g and disposal of products and equipment containing such gases Leak test pursuant to Article 3 containment 3 kg 30 kg at 12 month intervals or 6 kg in hermet ically sealed systems 30 kg 300 kg at 6 month intervals more than 300 kg at 3 month intervals 2 3 4 Chemicals Climate Protection Ordinance This Ordinance applies in addition to the aforementioned Regulation EC No 842 2006 of the European Parl...

Page 8: ...ntrol the re quired fan speed Any condensate incurred is collected in the integral con densate collecting tray below the heat exchanger and from there is routed outside via a condensate discharge hose 3 2 Air routing In order to achieve sufficient cooling in the server enclo sure it is important to ensure that the cooling air passes through the interior of the built in devices rather than flowing ...

Page 9: ...ator coil via the expansion valve in liquid form The condenser is comprised of copper core pipes with aluminium mem branes and a DC fan motor which is speed controlled to adjust the output Electronic expansion valve to supply the evaporator coil with the required volume of refrigerant so as to ensure the corresponding optimum thermal absorp tion capacity to suit the current output requirements The...

Page 10: ...e discharge hose with copper si phon 1 External unit 1 Set of accessories for mounting the internal unit and for the air block panel 1 Assembly and operating instructions Tab 1 Scope of supply of an LCU DX single variant Qty Parts 1 LCU DX ready to connect consisting of 1 Internal unit 2 Remote control operating unit 1 Holder for operating unit 482 6 mm 19 con sole 3 U 2 Temperature sensor server ...

Page 11: ...ip over Risk of toppling especially after the unit is re moved from the pallet Caution Transportation of the LCU DX without a pallet Use only suitable and technically sound lifting gear and load bearing devices with sufficient load capacity Note After unpacking the packaging materials must be disposed of in an environmentally friendly way They consist of the following materials Wood polyethylene f...

Page 12: ...it and external unit 5 1 3 Supply connections required at the installa tion site Power is usually supplied to the external unit LCU DX 3 kW LCU DX 6 5 kW 5 1 4 Electromagnetic interference Interfering electrical installations high frequency are to be avoided 5 2 Assembly procedure 5 2 1 Preparatory tasks The internal unit may be mounted both on the right and on the left of the TS IT server enclosu...

Page 13: ...ernal unit Position the internal unit on the mounting devices in such a way that the air outlet opening is on the opera tor side of the server enclosure and the fans are in the rear section The end face of the internal unit must be flush with the front edge of the TS frame Align the internal unit horizontally In this position screw the internal unit to the punched section with mounting flange usin...

Page 14: ...led or the fan would need to work against the wind and be unable to move the re quired volume of air If necessary a wind break should be installed at a dis tance of 1 m from the device If the unit is installed underneath a canopy there must be a distance of at least 2 m between the floor and the canopy The following distances should be observed for mainte nance purposes Fig 6 Distances from extern...

Page 15: ...Assembly and siting EN Fig 8 Top view of attachment points Key 1 For 3 kW unit 550 mm For 6 5 kW unit 560 mm 2 Distance 1000 mm 3 For 3 kW unit 325 mm For 6 5 kW unit 335 mm 4 12 x 20 mm elliptical drilled holes 1 1 2 3 4 ...

Page 16: ...otected or covered if there is a risk of damage 4 Flexible connecting parts such as connection lines between indoor and outdoor devices that could be come displaced during regular work operations must be protected against mechanical damage 5 The maximum distance between the supports of the copper pipes is 1 m for pipelines with 1 4 to 3 8 1 25 m for pipelines with 1 2 to 5 8 and 2 m for pipelines ...

Page 17: ... nitrogen filling provided in the factory as an indication that there are no leaks in the cooling circuit 2 Only cut pipes to length using a pipe cutter 3 Never saw pipes as this could create swarf 4 Only solder pipes under nitrogen or helium To this end allow dry inert gas to flow into the pipe at one end of the pipeline which has already been created Before starting introduce a powerful current ...

Page 18: ...ired fill volume has been added 3 The set volume of refrigerant is determined by weighing the refrigerant bottle during the filling pro cess 4 The additional fill volume or the new total fill volume should be noted on the rating plate and operating manual 6 3 Connecting the condensate discharge Any condensate which may develop is collected in the condensate collecting tray of the internal unit For...

Page 19: ...in the electronic box to terminals L1 and 11 for the sin gle version and terminals L1 and 11 as well as L2 and 23 remote or ON OFF for the redundant version see section 11 7 3 Circuit diagram external unit In the closed state the system is then deactivated If both terminals are jumpered the status message will appear in the display 6 5 Checking the entire system prior to commissioning Before opera...

Page 20: ...he rear may reach a high temperature This is intention al since it increases the transmission performance of the heat exchanger in the internal unit Distribute the equipment you wish to install evenly across the 482 6 mm 19 level Close any areas you do not require with 482 6 mm 19 blanking plates Cover the side opposite the internal unit in the enclo sure with an air baffle plate see section 13 Ac...

Page 21: ...Rittal LCU DX 21 6 Installation EN Fig 13 Partitioning with foamed plastic pieces on the side of the LCU internal unit Key 1 Partitioning above 2 Partitioning inside 3 Partitioning below 3 1 2 ...

Page 22: ...device 3 Key 1 Manual to request operating statuses 2 Operation permanently illuminated during operation flashes when the system is being booted up 3 Timer no function 4 DEF FAN no function 5 Alarm flashes red in case of malfunction 6 LCD display 1 and 2 displays a fault code in case of an alarm 7 2 Switching the LCU DX on and off 7 2 1 Switching on the internal and external units Once both the in...

Page 23: ...vice 2 On control and display device 2 keep the Set button held down for 3 seconds Your setting is displayed Using the arrow keys set the same setting as previ ously set on control and display device 1 Confirm this value by pressing the Set button again The setpoint is displayed on control and display unit 2 As a general rule the setpoints on all control compo nents should be set to the same value...

Page 24: ...ing the ad dresses shown in section 15 Customer service addresses No Description of malfunction LED 1 Operation LED 2 Timer LED 3 DEF FAN LED 4 Alarm Malfunction code in display 1 Clash between operating modes 5 Hz E0 2 Communication malfunction between in ternal and external unit 5 Hz E1 3 Temperature sensor for server air intake defective or missing 5 Hz E2 4 Pipe temperature sensor T2 defective...

Page 25: ...egularly check the refrigerant circuit and all main components for correct functioning at least once a year according to DIN EN 378 Regularly check for leaks using a suitable device an nually as required by the F gas regulation see section 2 3 3 F gas regulation and section 2 3 4 Chemicals Climate Protection Ordinance Note At an ambient temperature of 40 C the nom inal service life of the built in...

Page 26: ...Please contact us for advice Caution Risk of damage The LCU DX must not be subjected to temperatures above 50 C during stor age Caution Risk of environmental contami nation Never allow refrigerant from the cooling circuit or oil from the compressor to es cape into the environment Refrigerant and oil must be properly dis posed of in accordance with the valid national legislation and regulations ...

Page 27: ...e 100 100 Cooling output Nominal cooling output kW L22 L35 3 5 server inlet air temperature Power consumption at nominal cooling output kW L22 L35 1 35 server inlet air temperature Energy Efficiency Ratio EER L22 L35 2 6 Air throughput max m3 h 2 500 Cooling circuit Refrigerant filled weight kg R410A 1 8 Fluid Group 2 Additional refrigerant from the 5th metre g m 30 Max permissible pressure bar PS...

Page 28: ...ing output Nominal cooling output kW L22 L35 6 2 kW server inlet air temperature Power consumption at nominal cooling output kW L22 L35 3 14 kW server inlet air temperature Energy Efficiency Ratio EER L22 L35 1 97 Air throughput max m3 h 4 800 Cooling circuit Refrigerant filled weight kg R410A 1 8 Fluid Group 2 Additional refrigerant from the 5th metre g m 30 Max permissible pressure bar PS HP 42 ...

Page 29: ... Settings Position of the sensor on the front of the server Due to the control response the temperature directly at the air outlet of the internal unit may fluctuate between 3 K and 4 K A fluctuation period lasts one to two min utes On average the temperatures at the air outlet of the internal unit are within the tolerance of 2 K Caution The LCU DX may only be operated with refrigerant R410A Use o...

Page 30: ... output kW min max 1 00 3 50 1 00 3 50 1 00 3 50 Power consumption kW 0 43 0 62 0 45 0 69 0 48 0 68 Tab 11 Exterior temperature 10 C Exterior temperature C 20 Setpoint C 2 K 22 25 28 Cooling output kW min max 1 00 3 50 1 00 3 50 1 00 3 50 Power consumption kW 0 49 0 99 0 46 1 05 0 49 0 68 Tab 12 Exterior temperature 20 C Exterior temperature C 35 Setpoint C 2 K 22 25 28 Cooling output kW min max 1...

Page 31: ...ng output kW min max 3 00 6 50 3 00 6 50 3 00 6 50 Power consumption kW 1 57 2 06 1 53 2 18 1 66 2 18 Tab 17 Exterior temperature 10 C Exterior temperature C 20 Setpoint C 2 K 22 25 28 Cooling output kW min max 3 00 6 50 3 00 6 50 3 00 6 50 Power consumption kW 1 80 2 63 1 86 2 67 1 89 2 67 Tab 18 Exterior temperature 20 C Exterior temperature C 35 Setpoint C 2 K 22 25 28 Cooling output kW min max...

Page 32: ...l unit LCU DX 3 kW and 6 5 kW Fig 17 Overview drawing of internal unit LCU DX 3 kW and 6 5 kW redundant version Key 1 Insert for data and supply cables 2 Refrigerant line for single version 1 pair 3 Refrigerant line for redundant version 2 pairs 4 Condensate discharge 2 3 2 3 1 3 3 4 1 ...

Page 33: ...W and 6 5 kW Fig 18 Dimensions of internal unit LCU DX 3 kW and 6 5 kW Outlet zone for cold air Condensate runoff for left side installation Refrigerant connections Inspection opening for electronics Condensate runoff for right side installation Intake zone for hot air M o u n t i n g h o l e s ...

Page 34: ...1 6 RI flow chart LCU DX Fig 19 RI flow chart Shut off valve Internal part External part Electronic expansion valve Capillaries Capillaries Condenser Evaporator coil 4 way valve Compressor Cooling Heating Accumulator Refrigerant gas Refrigerant liquid ...

Page 35: ...trol and display device 1 Control and display device 1 redundant Control and display device 2 DIXELL Control and display device 3 Control and display device 3 WAGO connector X3 Sensor A Optional Fans 1 and 2 Fans 1 4 Midea Motherboard internal unit WAGO connector internal unit A Electrical connection diagram Midea Motherboard internal unit Redundant version only WAGO connector internal unit B ...

Page 36: ...e switching on off Shielded cable Shielded cable Collective fault signal Operation Connection by the customer Open On COM NC COM NO Caution 230 V Remote switching on off Collective fault signal Operation Open On COM NC Connection by the customer Connection by the customer SK 3311 490 491 492 and 493 Voltage 230 V 1 N PE 50 Hz External unit A Supply lead Connection by the customer SK 3311 491 and 4...

Page 37: ... Motherboard External temperature sensor Register sensor Hot gas sensor Electronic expansion valve 4 way valve Compressor heater Floor heating DC fan motor Compressor Main supply lead 3 x 2 5 mm Fuse as per table Connection cable to internal unit 3 x 2 5 mm Pilot wire 3 x 0 75 mm Only shielded cable should be used as the pilot wire Inductor coil ...

Page 38: ... Qty Packs of Evaporator coil control board 1 Display 1 Compressor 1 Inverter motherboard 1 Electronic expansion valve 1 Evaporator coil fan 1 Dixell evaporator coil 1 Temperature sensor hot cold air 1 Refrigerant filter 2 Tab 21 List of spare parts LCU DX ...

Page 39: ... 13 Accessories Item Model No Qty Packs of Remarks Refrigerant pipe kit 1 Refrigerant pipe kit 20 m insulated for LCU DX 3 kW 3311 495 1 Refrigerant pipe kit 20 m insulated for LCU DX 6 5 kW 3311 496 1 Tab 22 List of accessories LCU DX ...

Page 40: ...ate up to 4 5 kW heat loss per 7 U and 700 mm depth Front to back cooling principle The devices built into the server enclosure are normally cooled according to the front to back cooling princi ple Under this cooling principle cold air supplied by exter nal air conditioning is blown to the front of the server enclosure The fans in the devices built into the server enclosure direct this air horizon...

Page 41: ...ddresses For technical queries please contact Tel 49 0 2772 505 9052 E mail info rittal de Homepage www rittal com For complaints or service requests please contact Tel 49 0 2772 505 1855 E mail service rittal de Rittal GmbH Co KG Auf dem Stützelberg 35745 Herborn Germany ...

Page 42: ... Enclosures Power Distribution Climate Control IT Infrastructure Software Services You can find the contact details of all Rittal companies throughout the world here www rittal com contact 02 2016 ...

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