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54

/04.2016/

G35

C7000IOC (Modbus Master)
EBUS-Board, Port 3

EN

μPC electronic board

This electronic board is connected to the C7000 via RS485 line to exchange data. The μPC controls the compressor
speed acting on the inverter. It receives also signals from pressure transducers and NTC temperature probes to
check whether compressor works within the admitted range and to control the electronic expansion valve according
to the superheating temperature.

Digital input Assignation of block J4

ID1

-

ID2

-

ID3

-

ID4

Auf 0V
gelegt.

Compressor start/stop (with ramp)

ID5

Compressor start/stop (without ramp)

ID6

Alarm reset

ID7

Serial or pLAN/Modbus commutation

Dig output

Assignation of blocks J12, J13, J14

NO1

not used

NO2

not used

NO3

not used

NO4

not used

NO5

not used

NO6

not used

NO7

not used

Analog input Assignation of block J3

B1 (NTC)

-

B2 (NTC)

-

B3 (NTC)

Suction gas temperature

B4 (NTC)

Hot gas temperature

B5 (4-20mA)

Condensation pressure

B6 (0-5V)

Evaporation pressure

B7 (0-5V)

not used

Ana output

Assignation of block J5

Y1 (0-10V)

"out of operation range" position signal
(not used)

Y2 (0-10V)

Compressor speed (not used)

Y3 (0-10V)

Expansion valve opening (not used)

Terminal PGD1 for configuration of
μPC (not permanently connected)

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Содержание CRL 210 CW

Страница 1: ...IT Cooling Solutions Index G35 Issue 4 2016 CyberRow Precision Air Conditioning Units 380 415 V 3 Ph 50 Hz Original instructions ...

Страница 2: ...4 Technical Data Construction size 2 28 5 5 Technical Data Units with on off compressor 29 6 Installation 30 6 1 Positioning the unit 30 6 2 Preliminary operations 32 6 3 Refrigerant circuit connection A and AS units 41 6 3 1 Selecting and laying the pipes 41 6 3 2 Closing the circuit 43 6 3 3 Creating a vacuum 45 6 3 4 Filling the refrigerant circuit 47 6 4 Water connection GS GES CW units 49 6 5...

Страница 3: ...e unit and observe the conditions of the power supply companies Switch off the voltage from the unit when working on it Observe the national regulations of the country where the unit will be installed The refrigerant circuit contains refrigerant and refrigerating plant oil observe professional dis posal for maintenance and when setting the unit out of service Cooling water additives have an acidic...

Страница 4: ...n and the repeated inspection Installation according to EN 378 Operation Determination of emergency measures accidents malfunctions Creation of an abbreviated instruction and notification template page a A unit protocol must be kept b To be stored in the proximity of the unit c Access for competent staff in case of repairs and repeated inspection must be ensured Repeated inspection according to EN...

Страница 5: ...sharp edges are al ways protected by rubber grommets Start up Area Cause Danger Safety note In the lower part of the unit refrigerant piping Defective filling line for refrigerant leaks in the refrigerant piping closed stop valves defective safety valve Discharge of refrigerant under high pressure burns in case of contact to the skin formation of acid vapours with open flames Open stop valves Wear...

Страница 6: ...ames Wear safety glasses and gloves don t put your head into the unit Pressure lines compressor Heat Burns in case of contact to the skin Wear safety gloves Avoid contact to hot unit parts Heat exchanger Sharp edges fins Injuries by cutting Wear safety gloves Steam humidifier Discharge of steam Burns Avoid area around the steam lance Electrical box Live components sup posed to be voltage free Elec...

Страница 7: ...ments Construction of protective covering from inside to outside 1 Neopolene cushioning 2 Shrink film 3 Additional board in container shipments 3 2 Transport The Stulz A C units can be moved by lifting devices with ropes for this the ropes have to be fixed at the pallet and the upper unit edges have to be protected by wooden laths or metal brackets in such a way that they could not be caved in You...

Страница 8: ... cooled GS water glycol cooled GES glycol cooled free cooling CW chilled water cooling directly Page information Index number Date of issue month year Language EN English FR French ES Spanish PL Polish IT Italian HU hungarian RU Russian DE German 4 Description 4 1 Type code The type code represents the unit variant of your A C unit and can be found on the rating plate Manufacturer address EN The r...

Страница 9: ...on the frontal surface of server racks immediately available at their intake openings Air discharge is at both front sides of the air conditioner Therefore the recommended position is between server racks If installed at the end of a row the supply opening corresponding to the free side should be closed to avoid a mixing between hot and cold air with a consequent waste of energy Only for CW size 2...

Страница 10: ...016 G35 EN 4 3 Component layout Internal layout of AS unit size S Fans 5 Controller Evaporator Condensate drip tray E box Electronic expansion valve Inverter Compressor Liquid receiver Oil separator Air filter ...

Страница 11: ...016 G35 EN Air filter E box Inverter Electronic expansion valve Compressor Liquid receiver Fan Controller Evaporator Steam humidifier Option Condensate drip tray Internal layout of AS unit size 1 Oil separator ...

Страница 12: ...12 04 2016 G35 EN Air filter E box Inverter Electronic expansion valve Compressor Liquid receiver Fan Controller Evaporator Condensate drip tray Internal layout of AS unit size 2 Oil separator ...

Страница 13: ... 04 2016 G35 EN Air filter E box Inverter Electronic expansion valve Compressor Fan Controller Evaporator Steam humidifier Option Condensate drip tray Internal layout of GES unit size 1 Condenser GE coil ...

Страница 14: ... G35 EN Internal layout of GES unit size 2 E box Inverter behind condenser Electronic expansion valve Compressor Fan Controller Evaporator Steam humidifier Option Condensate drip tray Condenser GE coil Air filter ...

Страница 15: ...15 04 2016 G35 EN Air filter E box Vent valve 2 way valve Fan Controller Chilled water coil Condensate drip tray Internal layout of CW unit size S ...

Страница 16: ...16 04 2016 G35 EN Air filter E box Vent valve 2 way valve Fan Controller Chilled water coil Steam humidifier option Condensate drip tray Internal layout of CW unit size 1 ...

Страница 17: ...17 04 2016 G35 EN Air filter E box Vent valve 2 way valve Fan Controller Chilled water coil Condensate drip tray Internal layout of CW unit size 2 ...

Страница 18: ...s on a steam humidifier available as an option 4 5 Mechanical components Structure These units are made of self supporting hot dip galvanized sheet metal parts that offer good corrosion resistance suitable only for non corrosive and non saline environments External panels are powder coated with protective paint This system is designed for an easy inspection of the unit The sides of the unit are in...

Страница 19: ...nits Low pressure switch High pressure switch Pressure transmitter Temperature sensor with indication Temperature sensor Expansion valve Filter drier Sight glass Angle valve Stop valve Pressure relief valve Schrader valve Legend Evaporator Liquid receiver Oil separator EC compressor EC fan ...

Страница 20: ...20 04 2016 G35 EN to external condenser Refrigerant scheme for A units Evaporator Liquid receiver Compressor EC fan Hotgas Bypass ...

Страница 21: ...21 04 2016 G35 EN Refrigerant scheme for GES units Evaporator EC compressor EC fan Condenser GE coil Vent valve CW coil 2 way valve Vent valve Filling and drain valve Refrigerant scheme for CW units ...

Страница 22: ...ance work Work on the units must only be done by qualified and authorized experts High pressure switch A AS GS GES units This stops compressor operation whenever pressure inside the refrigerant circuit exceeds 36 bar When pressure returns below 29 bar alarm signal from high pressure switch is disabled Temperature sensors Three PTC and three NTC temperature sensors are connected to analogue inputs ...

Страница 23: ...odulates the rotation speed of compressor in order to adjust cooling capacity to the actual thermal load Main switch An all phase main switch is placed on the cover of e box and disconnects the main power supply of all unit electric circuits downstream The main switch knob is interlocked with the cover of e box so as to prevent contact with elec tric live components inside the e box According to t...

Страница 24: ...61 AS CRS L 361 GS CRS L 361 GES CRS L 560 CW Other voltages on request Voltage frequency tolerances as for 400V 3Ph 50Hz The cooling capacity air flow water flow pressure loss sound pressure level and valve sizes change with a vol tage different from the standard voltage 400V 3Ph 50 Hz In this case see the technical data by the help of the Stulz Select planning tool The unit design the external d...

Страница 25: ...40 16 15 Refrigerant R410A R410A 100 water 100 water values for free cooling winter operation in parentheses The sound pressure levels are valid at a height of 1m and distance of 2m in front of the unit under free field condi tions and with nominal data The values take into account the effects of all installation and design parts contained in the standard unit Adjustment of the pressure switches L...

Страница 26: ...gsaufnahme kW 6 4 maximale Stromaufnahme A 16 Ventilator Leistungsaufnahme kW 0 9 0 7 maximale Stromaufnahme L1 L2 L3 A 2 8 1 4 2 8 2 8 1 4 2 8 Gesamtleistungsaufnahme kW 7 4 0 7 EN Model CRS CRL Cooling capacity total 35 C 25 r h sensible kW EER Water volume flow m h Total pressure loss kPa Diameter of 2 way CW valve inch Water content of CW coil dm Air volume flow m h Number of fans Supply air t...

Страница 27: ...r Leistungsaufnahme kW 6 4 6 4 6 4 maximale Stromaufnahme A 16 16 16 Ventilator Leistungsaufnahme kW 0 7 0 7 1 1 1 2 maximale Stromaufnahme A 3 1 3 1 3 1 3 1 Gesamtleistungsaufnahme kW 7 5 7 5 7 9 1 2 EN Model CRS CRL Compressor Power consumption kW maximum current consumption A Fan Power consumption kW maximum current consumption A Total power consumption kW 5 3 Technical Data Construction size 1...

Страница 28: ...eistungsaufnahme kW 9 9 9 9 9 9 maximale Stromaufnahme A 22 22 22 Ventilator Leistungsaufnahme kW 1 3 1 3 1 4 2 8 maximale Stromaufnahme A 5 3 5 3 5 3 5 3 Gesamtleistungsaufnahme kW 11 6 11 6 11 7 2 8 EN Model CRS CRL Compressor Power consumption kW maximum current consumption A Fan Power consumption kW maximum current consumption A Total power consumption kW 5 4 Technical Data Construction size 2...

Страница 29: ... H x B mm 1950 x 300 1950 x 400 1950 x 600 Geräteabmessungen Tiefe CRS mm 1200 1175 Leergewicht kg 220 250 300 Geräteabmessungen Tiefe CRL mm 1375 Leergewicht kg 230 261 312 EN 5 5 Technical Data Units with on off compressor 1 Units of version A contain a protective gas filling under atmospheric pressure Model CRS CRL Cooling capacity R410A total 35 C 25 r h sensible kW EER R410A Supply air temper...

Страница 30: ...ween racks Instal lation at the end of a row cause a waste of cold air on the side without racks Should this application be necessary it is recommended to close the air discharge opening to that side Closing plates are available as accessories As an alternative to close the row of units a unit with frontal air delivery is available as option Install air conditioning units near the racks with the h...

Страница 31: ...distant rack from the unit remote probes to measure supply air temperature are available as accessory There are no limits for the maximum width of aisles because cold air is not dispersed in the entire cold aisle but is supplied in a thin layer near the surface of the racks Minimum width of aisles is determined by the space necessary for maintenance in the front and rear sides of the unit as well ...

Страница 32: ...te correctly and that condensate will drain properly Units have adjustable supports for this purpose 6 2 Preliminary operations Open the front panel with a male triangular wrench to check unit data plate Then close it again Open the rear panel with a male triangular wrench You will find unit documentation Read it carefully and prepare for connection of cooling circuit Once the unit is placed for g...

Страница 33: ...518 90 EN Top view Bottom view Standard connection from top Option connection from bottom Size S IN OUT refrigerant water pipes con densate discharge electric cables IN OUT refrigerant water pipes condensate discharge condensate pump is required electric cables ...

Страница 34: ...N Inlet outlet of humidifier if present Top view Bottom view Size 1 IN OUT refrigerant water pipes con densate discharge electric cables IN OUT refrigerant water pipes condensate discharge condensate pump is required electric cables Standard connection from top Option connection from bottom ...

Страница 35: ...100 GES 320 66 EN Inlet outlet of humidifier if present Top view Bottom view Size 2 IN OUT refrigerant water pipes con densate discharge electric cables IN OUT refrigerant water pipes condensate discharge condensate pump is required electric cables Standard connection from top Option connection from bottom ...

Страница 36: ...the AS unit are identical water inlet CW resp pressure line AS water outlet CW resp liquid line AS CyberRow model Each CyberRow unit is available in two different depths and when in use with racks of different depths it can ensure to be flush with the racks on the warm aisle side CyberRow Large units have a uniform depth of 1375 mm The unit views are displayed on the following pages sorted by cons...

Страница 37: ...37 04 2016 G35 CRL 251 A AS EN bottom view side view top view 4 supports liquid line pressure line Size 1 ...

Страница 38: ...38 04 2016 G35 CRL 251 GES CRL 320 CW EN bottom view side view top view 4 supports water outlet water inlet water outlet water inlet Size 1 ...

Страница 39: ...39 04 2016 G35 CRL 361 A AS EN bottom view side view top view 4 supports liquid line pressure line Size 2 ...

Страница 40: ...40 04 2016 G35 CRL 361 GES CRL 560 CW EN bottom view side view top view 4 supports water outlet water inlet water outlet water inlet Size 2 ...

Страница 41: ...following steps 1 Selecting and laying the pipes 2 Closing the circuit and testing the tightness with the conditioner and condenser stop valves closed 3 Opening the valves and creating a vacuum 4 Filling with refrigerant To design the piping between the A C unit and the condenser follow the instructions in chapter 2 Refrigerant piping of document General DX This document is available in the e Stul...

Страница 42: ... version The units contain an oil separator which is installed at the hot gas side of the compressor and serves to recuperate oil in all operating states The separated oil is injected on the suction side of the compressor For the hot gas line and the liquid line each a non return valve is supplied loose with the A C unit For the liquid line we recommend to install the non return valve near the con...

Страница 43: ...ondenser Pressurize the pipes with dry nitrogen Instantly unplug the pipes Repeat this process several times 3 Weld the pipes to the fittings on the air conditioner For pipe passage use the openings either on the base or on the top of the unit Only for CyberRow size 1 electric box of the unit can rotate on its side for a better accessibility during maintenance Lay out pipes inside the unit so that...

Страница 44: ...44 04 2016 G35 CR 211 A AS ø 16 mm CR 251 A AS ø 16 mm CR 361 A AS ø 22 mm CR 211 A AS ø 12 mm CR 251 A AS ø 16 mm CR 361 A AS ø 16 mm EN Hot gas pipe Liquid pipe Refrigerant line connection ...

Страница 45: ... bottle Vacuum pump Vacuum meter Pressure measuring station Filling station with prom mable scale Explanation of the evacua tion process with reference to the numbers overleaf High pressure side to condenser Low pressure side 6 3 3 Creating a vacuum ...

Страница 46: ...lose all valves after completing the filling process For reference see the illustration on the previous page How to determine correct refrigerant charge Start up the unit according to the instructions in the chapter Start up Manually force the unit to start cooling Set the supply air set point and the differential set point at the lowest admitted level so that the unit works at maximum cooling cap...

Страница 47: ... ON position the C7000 controller should now be in the Stop mode Switch on the control circuit fuses Do not switch on neither power switches nor the controller Compressor Condenser Non return valve option Receiver Safety valve A C unit external installation Open stop valves C7000AT Select the Config menu Enter the password Go to menu Components Manual oper Cooling Valves Change the parameter in th...

Страница 48: ...me start The standing refrigerant bottle is connected to the suction side via a pressure gauge station The weight is noted shortly before filling The specified amount of refrigerant is now added when the system is operating During filling the pressure in the refrigerant bottle will adjust to that of the system Filling is then no longer necessary This can be seen by the icing up of the bottle or by...

Страница 49: ...ts purity is inadequate a fine mesh filter in the circuit is recommended Cooling fluid temperature must be 5 C The following table shows substances which must be added in particular working conditions to ensure correct functioning An excess of additive reduces the performance of the cooling system In case of doubt consult the manufacturer Maximum admitted quantity of glycol 50 Maximum total static...

Страница 50: ...e blockage The strainer should have a mesh size of 0 5 mm Be aware that any fouling or blockage of the heat exchanger result in a reduced water flow loss of efficiency possible damage to the heat exchanger and subsequent unit failure Connection with external thread For connecting the unit to the external system remove the protective caps or sealing disks of the screwed connections Water remaining ...

Страница 51: ...ake a siphon according to the following instruction Siphon installation Ensure that there is a sufficient height difference between the fan pan and the upper bow of the siphon or the highest part of the drain tube in order to avoid a water column in the drain siphon caused by the pressure in the suction area of the A C unit which prevents the draining of the condensate water Connect the condensate...

Страница 52: ...ems regulations Cut off every power supply line before working on the unit Section of power supply cables must be selected in accordance to their length kind of power supply and the current absorbed by the unit as prescribed by current regulations These cables must comply with currently applicable standards In any case we recommend using shielded cables unless the installer carries out at his expe...

Страница 53: ...ted to check for proper operation Set the desired supply air temperature and the desired differential set point difference between return and supply air temperature on the C7000 display Start the climate control system by pressing the ON OFF push button on the display Units type AS GES after about 20 minutes of opera tion check the sightglass for air bubbles in the liquid pipe If there are bubbles...

Страница 54: ...ID4 Auf 0V gelegt Compressor start stop with ramp ID5 Compressor start stop without ramp ID6 Alarm reset ID7 Serial or pLAN Modbus commutation Dig output Assignation of blocks J12 J13 J14 NO1 not used NO2 not used NO3 not used NO4 not used NO5 not used NO6 not used NO7 not used Analog input Assignation of block J3 B1 NTC B2 NTC B3 NTC Suction gas temperature B4 NTC Hot gas temperature B5 4 20mA Co...

Страница 55: ...nergize the µPC Open terminal ID7 remove the 0V voltage Pull the connector of the ModBus connection from J8 Push the telephone connector of the PGD1 on to block J7 Switch on the µPC After the restart a program for quick configuration is started which is called Wizard displaying eight windows from Wz01 to Wz08 In Wz01 the control mode must be set The µPC is controlled by a ModBus connection to the ...

Страница 56: ...he compressor is initialized suitable It is compellingly required to select Yes Following the data is written in the inverter The program verifies the compatibility of Kcompressor and inverter dis plays the result of the verification in Wz04a and requires the confirmation for writing the default setting Write default Yes After the confirmation with the ENTER key the display shows Wait de fault ins...

Страница 57: ...r with Prg By the PRG key you come to view M01 the first window in the main menu branch With the Enter key you procede to the next menu Now select M06 BLDC means Brushless direct current Now you must modify two settings for the expansion valve By the win dows M02 EVO Menu config and selecting the menu item a Configu ration you first get to Ea01 and then to view Ea02 Here the main regulation must b...

Страница 58: ...um admitted speed on 120 rps In view Co15 you can adjust how the control with a low pressure ratio shall function 1 by closing the expansion valve 2 by increasing the compressor speed Set both parameters to Yes View Co04 Set the limit value for minimum suction pressure on 3 0 bar Set the delay for low pressure alarm Min Suction Compr Start Delay on 180s View Co05 Here you adjust the admitted maxim...

Страница 59: ... E PE connection F Operating status LEDs G Terminals for connecting a shunt reactor Setting the network address The network address is composed by the base address which can be mo dified via the ModBus connection and the address which can be adjusted by the micro switches Address Micro switches 1 2 3 4 0 OFF OFF OFF OFF 1 ON OFF OFF OFF 2 OFF ON OFF OFF 15 ON ON ON ON Micro switch address 0 In the...

Страница 60: ...phase voltage supply Relay K41 for transmission of the HP alarm to the C7000 High pressure switch circuit 1 µPC board Terminal Assignation Use 3 0V RS485 ModBus connection 4 RX TX 5 RX TX 6 PTC input not used 7 24VDC auxiliary voltage 8 0V 9 STOa input for HP alarm 10 STOb 1 2 Relay output not used Inverter connections Mains filter ...

Страница 61: ...ration measuring the current pressures temperatu res In such a case the unit must only be switched on at the master switch after all mechanical connections have been established The unit must be switched off immediately after the measuring procedure Warning notes When the master switch is switched on and the controller is stopped the power contactors are live even if the components are not operati...

Страница 62: ...he com pressor In the extreme the HP switch triggers Purity Check the sight glass and the filter drier Bubbles in the sight glass indicate that the charge is unsufficient or that the filter drier is clogged A pollution of the filter drier whose origin task is to clear the refrigerant from impurities and humidity can be detected by a temperature difference upstream and downstream the filter drier C...

Страница 63: ...ch settle at the fins and reduce the heat transmission the same as raise the air resistance The latter shows when the fan current increases The heat exchanger can be cleaned by pressurized air which has to be blown opposite to the normal air flow direction along the fins Do not distort the fins while cleaning this also increases the air resistance Fan The bearings of the fans are lifetime lubricat...

Страница 64: ...y to verify this consists in the comparison of the outlet temperature with the medium condensation temperature by measuring the condensation pressure at the high pressure side of the compressor If this difference exceeds 7 K the condenser is probably polluted In this case the condenser has to be cleaned chemically 8 6 Unit in general Electrics Check the connection terminals for tight fixation when...

Страница 65: ...essure for air flow switch has triggered 1 Fan motor defective Fan speed too low 2 Air filter extremely clogged 3 Hoses to the airflow monitor dirty or kinked Check fan motor on voltage conti nuity and current consumption Fan mechanically blocked Check air filter Clean hoses and check whether they are kinked C7000 Sensor error The tolerance to the average value adjustable in the cont roller has be...

Страница 66: ... oil manufacturer Disconnect the depressurized refrigerant pipes from the external system version AS If glycol or similar additives had been used this liquid also has to be collected and disposed in an appropriate manner and may under no circumstances be introduced in the local waste water system Disconnect the unit from the external water circuit by closing the shut off valves and drain the water...

Страница 67: ...sed EC directives and EC safety standards listed below In the case of a modification of the equipment not co ordinated with us this declaration loses its validity Air conditioning unit EC Directives EC machinery directive 2006 42 EC EC directive for low voltage 2006 95 EC EC EMC directive 2004 108 EC EC pressure equipment directive 97 23 EC National regulation BGR 500 chapter 2 35 BGV A3 Harmonise...

Страница 68: ......

Страница 69: ...due to lowering of the water level e g because of the evaporation process or drainage the inlet valve opens until the required capacity is available again If the required steam capacity is lower than the actual output the inlet valve is closed until the desired capacity is achieved by lowering of the water level evaporation process Level monitoring A sensor provided in the steam cylinder cover det...

Страница 70: ... opened immediately after having produced steam there is danger of burning when touching the steam cylinder Prevention Before carrying out any work set the steam humidifier OEM2 out of operation as described in chapter 12 1 3 5 then wait until the steam cylinder has cooled down sufficiently thus preventing danger of burning Steam capacity kg h Nominal power kW Nominal current A Max current A 12 1 ...

Страница 71: ...g H3 Green LED Steam production JP1 Jumper block 1 JP2 Jumper block 2 S1 Rotary switch unit type S2 Drain Info key Sx Potentiometer power limitation rH Potentiometer humidity value Y1 Main contactor heating voltage Y2 Inlet valve Y3 Drain valve T1 Current sensor 12 1 1 2 Wiring diagram of the control unit ECCM S Danger Mains voltage to C7000 alarm input input signal from the C7000 controller ...

Страница 72: ...ater conductivity 125 μS cm Normal water conductivity 125 μS cm DSP Exchangeable steam cylinder Cleanable steam cylinder K Fault No 4 steam cylinder maintenance due the unit triggers a warning only the error switch on the control unit ECCM S is not activated Fault No 4 steam cylinder maintenance due 72 hours after the warning an error is triggered and the unit is switched off red LED lights Howeve...

Страница 73: ...nstallation of an Aqua stop valve in the water supply of the humidifier In ad dition to this the room in which the A C unit with the humidifier is installed should be equipped with a water detection system Water supply The water connection at the cold water mains must be equipped with a shut off valve and must be carried out ac cording to the EU directive 98 83 EC and EN1717 It is recommended to i...

Страница 74: ... interval indicates the number of the error see chapter 12 1 4 4 3 Warning and info indication yellow LED in normal operating mode The LED blinks if manual draining is in progress The LED lights if the cylinder maintenance is due or the maintenance indication is not reset after the main tenance in info mode LED blinks in intervals if a malfunction with status warning is present The number of blink...

Страница 75: ...ew hours of operation that the maximum steam output is not achieved This is normal As soon as the water reaches adequate conductivity through the vaporization process the steam humidifier will work at maximum output 12 1 3 3 Function of the LEDs in info mode The info mode is activated by pressing the drain info key for an extended period of time 3 seconds In info mode the LED s on the control unit...

Страница 76: ...tently info mode The amount of blinks per interval indicates the type of malfunction Yellow LED Warning blinks intermittently A malfunction is present The control unit checks whether there is a temporary problem e g water supply interrupted for a short time or whether it can resolve the problem by taking necessary measures Red LED Error blinks intermittently The control unit after several attempts...

Страница 77: ... more than 72 hours Interval for steam cylinder service exceeded Mineral deposits and or electrodes spent Replace steam cylinder type A clean steam cylinder type D see chapter 5 humidifier service manual Important Refer to chapter 12 1 4 2 for reset ting the maintenance indicator Note if the Jumper K is installed on the ECCM S control unit the unit remains in warning status even if the interval ti...

Страница 78: ... stulz com in the e Stulz area under Downloads Precision A C as a pdf document Here you can only see a diagram which shows the average life cycle of a steam cylinder in dependance of the runtime and the total hardness The humidifier runtime can be read in the Info menu of the C7000AT or by the command humi h in the C7000 To replace the fine wire fuse proceed as follows 1 Set the steam humidifier O...

Страница 79: ...o an appropriate drain avoiding restrictions Always ensure the box with the float switch is placed in an even and horizontal position Test pump operation by pouring water into evaporator tray CHECK FOR LEAKS Preventing siphoning cut discharge tube 2 above water level 3 of evaporator tray and direct end into large pipe 4 allowing air break Maintenance This pump like all mechanical equipment require...

Страница 80: ... put the unit at the end of a row In some cases the lateral air delivery towards the end of the row cannot be closed because air speed from the other opening would be too high This creates a high depression at the intake of the rack next to the air delivery If this depression is higher than the available ESP of rack fans cold air cannot enter the rack Inside non compartmented server rooms units wi...

Страница 81: ... the difference is smaller Thus fans speed up to reach the set point ensuring a higher ventilation of the rack Humidity sensor The humidity sensor measures internal humidity giving a proportional signal to the C7000 in order to realize the following functions display of internal humidity value control of humidification function when humidification is needed an optional humidifier must be ordered R...

Страница 82: ...me relay preadjusted 10 seconds power supply 2 is switched onto the A C unit The A C unit starts by the automatic restart which is integrated in the controller When the voltage of power supply 1 returns the A C unit is switched off again On a second time relay a delay can be set preadjusted 10 seconds after which power supply 1 is switched onto the A C unit The A C unit starts by the automatic res...

Страница 83: ...allation Use only copper conductors for 75 C Install two back up fuses in the supply lines The size of the back up fuses depends on the terminal equipment A C unit Choose the cable cross sections in accordance with local standards the laying method and line lengths main switch A 40 63 80 single wire or multi wire mm 16 16 50 finely stranded conductor mm 16 16 35 Maximum cross section of the supply...

Страница 84: ...ith the electric diagram It is controlled and monitored by the controller The values for switching on and off are adjusted in the operate components heating menu on the controller Refer to the operating in structions C7000 Maintenance Clean the reheat annually from contaminations and check it for damage 12 5 Electrical reheat electrical reheat elements Malfunction causes Alarm E HEAT 1 FAILURE dis...

Страница 85: ...y as possible Now you lift the unit from the pallet on the floor By the unit s weight it is now possible to tighten the screw to the specified torque of 16 Nm Locking and adjusting the height After you have rolled the A C unit to the site and positioned correctly you can fix the position by lo wering the integrated truck lock First you turn the orange gear wheel counterclockwise until the truck lo...

Страница 86: ... 045 633 16 35 info stulz it IN STULZ CHSPL INDIA PVT LTD 006 Jagruti Industrial Estate Mogul Lane Mahim Mumbai 400 016 Tel 91 22 56 66 94 46 Fax 91 22 56 66 94 48 info stulz in NL STULZ GROEP B V Postbus 75 1180 AB Amstelveen Tel 31 20 54 51 111 Fax 31 20 64 58 764 stulz stulz nl NZ STULZ New Zealand Ltd Office 71 300 Richmond Rd Grey Lynn Auckland Tel 64 9 360 32 32 Fax 64 9 360 21 80 sales stul...

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