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Stulz Prodigy IROW DX Operating Instructions Manual
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Stulz Prodigy IROW DX Operating Instructions Manual

Stulz Prodigy IROW DX Operating Instructions Manual

High density air conditioner
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STULZ the natural choice
Operating instructions
Prodigy IROW DX
High density air conditioner
230/1/50-60
EN
English
Release 04.2021

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Summary of Contents for Stulz Prodigy IROW DX

  • Page 1 English STULZ the natural choice Release 04.2021 Operating instructions Prodigy IROW DX High density air conditioner 230/1/50-60...

  • Page 3: Table Of Contents

    Table of contents Safety Directions ......................... 6 1.1 General information ....................... 7 1.2 Handling refrigerants (DX units) ..................8 1.3 Safety and environmental requirements ................ 8 1.4 Residual risk ....................... 10 Unit identification ......................12 Components and operating principle ................14 3.1 Intended and non-intended use ...................
  • Page 4 7.5 General appliance cleaning procedures ..............50 Troubleshooting ....................... 50 Uninstalling and disposal of the unit ................51 10. Accessories / options ....................... 53 10.1 Condensate pump installed inside the unit – CONDPUMP.......... 53 10.2 WIB1000 / WIB1485....................54 10.3 External frame ......................54 11.
  • Page 5 STULZ reserves the right to update the product and the relevant manual without having to update products and manuals sold previously except under exceptional circumstances.

  • Page 6: Safety Directions

    This manual must be kept by the customer and made available to the installation, commissioning, use and maintenance personnel. An informative document on the REACH Regulation is available. Please view it on web site https://www.stulz.it/it/azienda/media/informazioni-generali/ Symbols on this manual: SYMBOLS ON THIS MANUAL...

  • Page 7: General Information

    Wear safety glasses and safety gloves • The unit may only be used to cool according to the Stulz specification • Before any maintenance operation, read and follow instructions in the corresponding chapter.

  • Page 8: Handling Refrigerants (Dx Units)

    Handling refrigerants (DX units) According to EN 378, refrigerants are divided in groups, concerning health and safety: R410A belongs to group L1 (non-flammable, non-toxic). • Adherence to the regulations by law and guide-lines • Execution only by competent staff • Responsibility for correct disposal of refrigerant and system parts is incumbent on the operator •...
  • Page 9 Then rinse with water Independent conversion and manufacture of replacement parts The system may only be converted or modified after consultation with STULZ. Original replacement parts and replacement parts/accessories authorized by STULZ are an aid to safety.

  • Page 10: Residual Risk

    Residual risk During transport and installation Area Danger Risk Preventive measures Under the Defective lifting system of the unit that Contusions, Keep away from dangerous area during handling of unit causes its fall. traumas the unit. Near the Accidental collision with damages to the Burns, forming Keep away from dangerous area during handling of unit...
  • Page 11 Internal hot components Contact with hot surfaces. Burns Wear PPE. (compressor,condenser, refrigerant lines) Near the unit Fire where the unit is installed Fire, explosion Be sure that the installation site is reserved to qualified personnel During disinstallation Area Danger Risk Preventive measures Near the Leakages in the refrigerant circuit;...

  • Page 12: Unit Identification

    Unit identification Name-plate This unit can be identified by the name- plate that includes information regarding its correct use. The name-plate is located in two copies on the unit: generally on one of the sides) and on the panel that closes the electric box.
  • Page 13 Coding Configuration Thermal medium Nominal cooling capacity Airflow Water valve Control Power supply Piping connection R A C A2 C 0 A 20 S B B = standard unit P = unit with condensate pump S = AC radial fan E = EC radial fan 20 = 230 V/ 1 Ph / 50-60 Hz A = advanced (C2020 + keypad)

  • Page 14: Components And Operating Principle

    As well, STULZ Prodigy iRow conditioners cannot be used outside safety limits specified on the name-plate. Conditioners must not be transported or used in positions that differ from those for which they were designed.

  • Page 15: Application Limits

    Humidity Component layout STULZ Prodigy iRow units are installed between two server racks in open loop configuration. They take air from a hot aisle of the room, cool and deliver it to a cold aisle, where it is sucked in by the server rack fans.
  • Page 16 Electric box Air filters (only in open loop models) Fans Dirty filter differential Multiswitch pressure switch Evaporator Refrigerant connections Condensate drip tray E/iRow DX/0421/16...

  • Page 17: Working Modes

    Working modes Cooling Air is sucked in by the radial fans, is filtered (only in open loop units) and then it is cooled passing through the evaporator. After treatment, air is delivered through the frontal opening. Cooling capacity is modulated by the external motor-condensing unit, which is equipped with an inverter- driven compressor.

  • Page 18: Refrigerant Circuit Components

    Condensate water tray Made of aluminium sheet, it is placed below the heat exchanger to collect water condensing on its surface during cooling mode. It is provided with a connector with 16 mm outer diameter for water drain. The connector is on the rear side of the condensate tray, as shown in the picture below.
  • Page 19 Evaporator (EV) This component is where heat from inner air passes to the refrigerant gas. It is a heat exchanger with copper pipes and aluminium fins (designed for use in non-corrosive and non-saline environments only). Surface has hydrophilic treatment. Refrigerant cocks (RU) They are positioned on the rear side of the unit.

  • Page 20: Motors

    STULZ engineering division department. STULZ conditioners come with a set of devices designed to ensure proper operation. Tripping by any one of these automatic safety devices is a sign of a malfunction and it is absolutely necessary to eliminate the cause.
  • Page 21 Four NTC probes measure temperature of return air, inlet and outlet of evaporator. They are connected directly to analogue inputs of Mitsubishi controller. Measured parameters are used to control external motor-condensing unit. Humidity sensor Placed behind air intake opening, it sends a humidity analogue signal (4 ÷ 20 mA) to C2020 controller, in order to enable dehumidification mode.
  • Page 22 Contact 3-1 opens when the differential pressure exceeds the pre-set value. At the same time contact 3-2 closes. The signal is transmitted through this contact. E/iRow DX/0421/22...
  • Page 23 C2020 electronic controller This electronic microprocessor card is equipped with a set of terminals to connect the card to the devices it controls (fans…). The operating software and the file containing the operating parameters are written in the EEPROM so that they remain stored even when there is a cut-off in the power supply.

  • Page 24: Unpacking And Inspection

    Unpacking and inspection INSPECTION STULZ products are delivered ex-works. All units have been individually inspected in all their components and been carefully packaged before of the delivery. Immediately inspect the unit upon receipt of the goods: • Make sure that it has been transported in the correct position. Note any unsuitable shipping conditions on the shipping document.
  • Page 25 Standard packing doesn’t protect air conditioner from rain and bad weather. Standard packing is not suitable for seafreight. Standard packing is not suitable for airfreight. Following information can be found on packing: • STULZ logo; • unit code; • accessories included in the packing of the unit;...

  • Page 26: Installation

    Components inside the packing: • RAC cooling module • electric box • multi-switch bar • keypad of C2020 with connection cable, packed in a carton box (code ACTKPDC1010) • accessories which might be included in the packing Use original packing to ship the air conditioner to any other destination. If packing disposal is necessary, we remind to dispose different materials suitably.
  • Page 27 A/C unit Server rack Furthermore, check that: • there’s room enough for an easy installation and maintenance of the unit: please check dimensional drawings, with particular attention to the accessibility of refrigerant connections and wiring. There must be a free space of 1 m from both front and back sides of the unit for installation and maintenance;...
  • Page 28 Overview of possible unit configurations with electrical box on the top E/iRow DX/0421/28...
  • Page 29 General dimensions and position of e-box Open loop AC fans EC fans Closed loop AC fans EC fans E/iRow DX/0421/29...
  • Page 30 Detail 1 Detail 2 (position of fixing points on lateral-bottom frame) E/iRow DX/0421/30...
  • Page 31 Detail 3 E/iRow DX/0421/31...
  • Page 32 Detail 4 (position of fixing points on bottom side) E/iRow DX/0421/32...
  • Page 33 Dimensions of e-box E/iRow DX/0421/33...
  • Page 34 Dimensions of multi-switch bar (3 fans) Only with Only with EC fans EC fans E/iRow DX/0421/34...
  • Page 35 Dimensions of multi-switch bar (5 fans) Only with Only with EC fans EC fans E/iRow DX/0421/35...

  • Page 36: Refrigerant Circuit Connection

    Work on refrigerant circuits must only be done by qualified personnel or by the STULZ service department. Making the refrigerant connection includes the following phases (described below): 1. Selecting and laying the pipes.
  • Page 37 For any additional information regarding pipework (material, size, piping work, insulation), please follow strictly manual of outdoor motor-condensing which will be connected to the iRow DX internal unit. Closing the circuit and testing the seal 1. Connect the pipes to the motor-condensing unit. Follow the instructions in the manual of outdoor unit.

  • Page 38: Condensate Discharge: Siphon Installation

    Vacuum creation After checking the pipe seal, open the cocks of RAC unit. Create vacuum, following the instructions in the manual of outdoor motor-condensing unit. Opening the circuit and charging additional refrigerant Open the operation valves (refrigerant cocks) of outdoor motor-condensing unit. The motor- condensing unit is pre-charged with R410A for pipes up to a certain length.

  • Page 39: Electric Connections

    Electric connections It is absolutely necessary, before making any connections, to check the supply voltage with a tester. The voltage that is measured must correspond with the voltage indicated on the unit label. The installer must install an omnipolar isolating switch with magneto-thermal protection upstream the motor-condensing unit.
  • Page 40 • Step 4: wire power supply cables from the outdoor motor-condensing unit to X1 and X2 connectors on the rear part of the electrical box. Follow the interconnection diagram at the end of the wiring diagram of RAC unit, as well as the instructions on the manual of the motor-condensing unit.
  • Page 41 • C2020 controller has up to nine voltage-free digital outputs available for alarm signals. Alarms managed by C2020 controller can be addressed to these outputs in different ways. Standard alarm configuration can be checked in wiring diagram. Alarm contacts are available on a screw-type interface inside the electric box.

  • Page 42: Telemonitoring

    Installation of the display The display of C2020 can be installed on the front door of the containing frame. To this purpose the front door must be provided with an opening for positioning the display. Dimensions are shown in the following picture. Remove the plastic support and install the display on the front door.
  • Page 43 Set parameter C.4.3.1.2.1 to PEMS. The baudrate is 9600 kbit/s. STULZ PROTOCOL Set parameter C.4.3.1.2.1 to STULZ. The baudrate is 9600 kbit/s. In the system (see figure below) there is a gateway (MIB / WIB) which manages the communication according to the STULZ protocol specifications.

  • Page 44: Host Computer

    Two different data point lists for ModBus are available. If C.4.3.1.2.1 is set to MODBUS_STULZ, data point list of ModBus is compatible with the one of STULZ GmbH controllers (C7000…). This is useful when the air conditioner has to be linked in the same telemonitoring net together with controllers from STULZ GmbH.

  • Page 45: Start-Up

    C2020 controller SLAVE BMS with HOST ModBus COMPUTER Line doubler RS485 C2020 controller SLAVE RS485 Start-up Before you first start up the system install and connect it up as described in the “Installation” chapter. Additional start-up instructions might be present on the manual of motor- condensing unit.
  • Page 46 • Set the desired supply air temperature on the conditioner display. • Start the climate control system by pressing the ON-OFF push-button on the display. • Check the current absorbed by the fans and other optional components, comparing these values with those indicated in technical data sheet at the end of this manual. •...

  • Page 47: Maintenance

    The ON-OFF key on the C2020 display (if present) is only used to put the unit on stand-by. It must not be thought to be a safety component to turn the unit off prior to performing maintenance. 7. Maintenance Safety instructions This chapter refers only to the maintenance of the indoor unit.

  • Page 48: Preventive Maintenance Program

    Sets of spare filters can be ordered from the STULZ service department. • HEAT EXCHANGERS: check that the heat exchangers are efficient and not clogged or dirty.

  • Page 49: Refrigerant Circuit

    Push the bracket up and extract it. Then the filter can be removed. Spare filters must have filtering medium with the same thickness and density as the original one. A set of spare filters can be ordered to your local STULZ service partner. Refrigerant circuit...

  • Page 50: General Appliance Cleaning Procedures

    Check voltage on power supply cables. missing Repair the broken cable or restore the missing connection Faulty controller Contact Stulz service Controller is working, Faults blocking the unit Look for alarms on the display. Contact but the rest of the unit...

  • Page 51: Uninstalling And Disposal Of The Unit

    This unit must be disassembled by authorised organisations. The following are the instructions for proper disposal of the unit during the various phases of its life. For further clarification or additional information, please contact info@stulz.it. To ensure proper and safe disposal activities, operator must equip themselves with the necessary PPE including: anti-cut gloves, oil resistant gloves, heat resistant gloves, safety footwear, safety eye-wear against liquid and gas splashes.
  • Page 52 1. Disposal of packaging The packaging of the unit must be disposed of ensuring separation of the following materials: • Paper and Cardboard • Wood Packing–Packing materials are not chemically treated unless they are declared to be “fumigate” • Plastic pallets- high- density polyethylene HDPE •...

  • Page 53: 10. Accessories / Options

    10. Accessories / options Condensate pump installed inside the unit – CONDPUMP 10.1 A pump is installed inside the unit when condensate evacuation by gravity is not possible. The pump receives power supply from the e-box and sends a water level digital signal to C2020 controller.

  • Page 54: Wib1000 / Wib1485

    Troubleshooting Fault: Pump runs all the time 1. Is float positioned with the magnet uppermost? 2. Is the reservoir lid (sensor) located firmly onto the reservoir, with the float located inside the reservoir, around the sensor column? 3. Is there sludge inside the reservoir, preventing float from resting on the bottom? (This may occur if pump has been in operation for some time without cleaning.

  • Page 55: 11. Appendix: Technical Data

    11. Appendix: technical data Notes on technical data sheets: • For technical data of Mitsubishi external motor-condensing unit, check corresponding manual. • Cooling capacities are calculated at the following conditions: internal return air temperature = 35°C / internal return air humidity = 30% / external air temperature = 35°C. Cooling capacities are preliminary data, subjected to updates.
  • Page 56 E/iRow DX/0421/56...
  • Page 57 E/iRow DX/0421/57...