nvent X2302 Series Instruction Manual
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nvent X2302 Series Instruction Manual

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EXTREME AC
Air Conditioner
X2302 Model
INSTRUCTION MANUAL
Rev. C
© 2022 nVent
89215748
P/N 89215748

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  • Page 1 EXTREME AC Air Conditioner X2302 Model INSTRUCTION MANUAL Rev. C © 2022 nVent 89215748 P/N 89215748...

  • Page 2: Table Of Contents

    F-GAS INFORMATION ..................................25 NOTE: Some of the information in this manual may not apply if a special unit was ordered. If additional drawings for a special unit are necessary, they have been inserted. Contact nVent HOFFMAN if further information is required.

  • Page 3: Receiving The Air Conditioner

    Damage evident upon receipt should be noted on the freight bill. Damage should be brought to the attention of the delivering carrier -- NOT to nVent Equipment Protection -- within 15 days of delivery. Save the carton and packing material and request an inspection. Then file a claim with the delivering carrier.

  • Page 4: Installation Instructions

    MOUNTING HOLES 22.32 POWER IN TERMINAL BLOCK (POWER CONNECTIONS BEHIND REMOVEABLE COVER) AMBIENT AIR IN COOL AIR 5.08 CLEANABLE, REUSABLE ALUMINUM INLET FILTER 4.49 6.00 WARM AIR OUT 3.78 1.26 11.41 89215771 CONDENSATE DRAIN © 2022 nVent 89215748 - 4 -...

  • Page 5: Mounting Cutout Dimensions

    MOUNTING CUTOUT DIMENSIONS 3X 9.15 3X 4.58 3X .43 3X .48 3X 5.00 10.63 8.40 16.25 22.22 20.32 21.25 89215771 CUTOUT DIMENSIONS MOUNTING GASKET ADHERES TO ENCLOSURE © 2022 nVent 89215748 - 5 -...

  • Page 6: Wire Diagram

    WIRE DIAGRAM 89206067 REV.C © 2022 nVent 89215748 - 6 -...

  • Page 7: Schematics

    SCHEMATICS 89206866 REV.B © 2022 nVent 89215748 - 7 -...

  • Page 8: Technical Information

    89083016 89083016 HPC Switch 20-1020-01 20-1020-01 Coil, Condenser, Coated 89204519 89204519 Coil, Evaporator 52-6028-03 52-6028-03 Filter/Dryer 89203781 89203781 Filter, Air, Reusable 89206006 89206007 Optional 350 W Heater 89202697 89202697 Air Conditioner Mounting Gasket © 2022 nVent 89215748 - 8 -...

  • Page 9: Smart Controller

    CONTROL STATUS INDICATION The display has numerous symbols to indicate the various controller functions such as cooling, heating, alarming, evaporator fan, and heating. Indicators (icons) are steady illuminated on screen when active. Figure 1 Display © 2022 nVent 89215748 - 9 -...
  • Page 10 Compressor Running • Steady ON while compressor is running White Evaporator Running White Electric heater ON White Primary and/or lead controller Compressor and Condenser fan OFF White Freeze control while illuminated White Power ON © 2022 nVent 89215748 - 10 -...
  • Page 11 © 2022 nVent 89215748 - 11 -...

  • Page 12: Displaying And Changing Program Settings

    High temperature alarm setpoint 51.7 C 40 F Low temperature alarm setpoint 4.4 C Door open alarm setting ArOP Alarm relay output NOTES: (4) The alarm relay output logic is designed to be configurable © 2022 nVent 89215748 - 12 -...
  • Page 13 No effect on function setpoint Compressor and condenser fan turns OFF for the duration Frost alarm Evaporator coil freezes of alarm. Alarm clears when Closed the outlet temperature sensor reaches 59 F (15 C) © 2022 nVent 89215748 - 13 -...

  • Page 14: Displaying Temperature Data On Screen

    This input is associated with the controller display alarm mnemonic dO (door open). To use this feature, remove the splice connector, and connect the two white wires to customer supplied enclosure door switch in its place. Note: do NOT apply power to this dry contact input. © 2022 nVent 89215748 - 14 -...

  • Page 15: Primary-Secondary (Ps) Mode

    7. Best recommendation is to configure the ACU that has Hoffman network card to be the primary one. CONNECTING UNITS TOGETHER IN PRIMARY/SECONDARY MODE Primary - Device ID 1 Secondary - Device ID 2 Secondary - Device ID 3 Secondary - Device ID 10 Figure 2 Primary-secondary network connectivity © 2022 nVent 89215748 - 15 -...

  • Page 16: Connecting Units Together In Lead/Lag Mode

    10. Set parameter H03 (total number of controllers connected) to 1 to 10. CONNECTING UNITS TOGETHER IN LEAD/LAG MODE Lead - Device ID 1 Lag - Device ID 2 Figure 3 Lead-Lag network connectivity © 2022 nVent 89215748 - 16 -...

  • Page 17: Air Conditioner Unit Remote Communication Features

    Air conditioners that include the optional Hoffman network card (RAC module) have remote communication capabilities utilizing SNMP, Modbus TCP, EtherNet/IP, Profinet Protocol via Ethernet connection, and Modbus RTU protocol via USB connection. nVent provides Windows interface application software that is available to download free from nVent support link https://go.nvent.com/remote-access-control-support-center. The Windows interface application software supports both Ethernet and USB communication.

  • Page 18: Using Hoffman Pc Interface Tool

    Enter the new network configuration to Device IP address, Gateway IP, and Trap IP, then click on Reprogram ACU button to write to the network card. • In order to be recognized the new networking configurations in local network, cycle power to the A/C unit is required. © 2022 nVent 89215748 - 18 -...

  • Page 19: Usb Communication Mode

    Enter the new network configuration to Device IP address, Gateway IP, and Trap IP, then click on Reprogram ACU button to write to the network card. • In order to be recognized the new networking configurations in local network, cycle power to the A/C unit is required. © 2022 nVent 89215748 - 19 -...

  • Page 20: Ethernet Communication Mode

    Refer to remote access control (RAC) Instruction Manual for configuring multiple units and with text message and email capability in Hoffman A.C. Monitor software. The remote access control Instruction Manual, P/N: 89091002 can be downloaded from nVent support center link, https://go.nvent.com/remote-access-control-support-center.

  • Page 21: Remote Access Control Pin-Out

    INLET TEMP PROBE DOOR OPEN SWITCH WHT63 GROUND RESERVED OUTLET TEMP PROBE RED45 MAL-FUNCTION ALARM BLU88 RESERVED UNIT REMOTE ON/OFF RESERVED RESERVED GROUND RESERVED DATA (-) DATA (+) GROUND DATA (-) DATA (+) GROUND © 2022 nVent 89215748 - 21 -...

  • Page 22: Maintenance

    If the condenser fan motor (ambient fan) should fail, it is not necessary to remove the air conditioner from the cabinet or enclosure to replace the fan. The condenser fan is mounted on its own bulkhead and is easily accessible by opening the front cover. © 2022 nVent 89215748 - 22 -...

  • Page 23: Refrigerant Loss

    CAUTION Operation of the air conditioner in areas containing airborne caustics or chemicals can rapidly deteriorate filters, condenser coils, blowers and motors, etc. Contact nVent Equipment Protection for special recommendations. REFRIGERANT LOSS Each air conditioner is thoroughly tested prior to leaving the factory to insure against refrigeration leaks. Shipping damage or microscopic leaks not found with sensitive electronic refrigerant leak detection equipment during manufacture may require repair or recharging of the system.

  • Page 24: Trouble Shooting

    (replace control box cover for safety). This will bypass the switch in the thermostat. Turn on the power. If both fans and the compressor come on, the thermostat needs to be replaced. © 2022 nVent 89215748 - 24 -...

  • Page 25: Symptoms And Possible Causes

    227 Grams 184 Grams Factory Charge Füllmenge durch Hersteller 227 Gramm 184 Gramm Opłata Fabryczna 227 Gramów 184 Gramów 0.32 Tons 0.26 Tons Equivalent Equivalent 0,32 Tonnen 0,26 Tonnen Ekwilalent 0,32Tony 0,26 Tony © 2022 nVent 89215748 - 25 -...
  • Page 26 NOTES © 2022 nVent 89215748 - 26 -...
  • Page 27 NOTES © 2022 nVent 89215748 - 27 -...
  • Page 28 Rev. C © 2022 nVent 89215748 P/N 89215748...

This manual is also suitable for:

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