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nVent.com/HOFFMAN 

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Software and configuration file downloads 

As stated above, the PC interface tool, MIB file, EDS and EtherNet_IP Object file, Coil Register file, and Data Point file can be downloaded 

from remote access control support center link, https://go.nVent.com/remote-access-control-support-center.

Using nVent HOFFMAN PC interface tool 

nVent HOFFMAN PC Interface Tool gives the user the ability to communicate with nVent HOFFMAN air conditioning unit as to read and write 

air temperature data, high and low temperature alarm setting, active alarms, and other information from the controller remotely using either 

Ethernet or USB connection. With nVent HOFFMAN PC Interface Tool a user has the ability to remotely manage and monitor hundreds of 

nVent HOFFMAN air conditioners both domestically and globally at one central location at user’s own pace, so long as all air conditioners are 

configured in the same subnet in the network. nVent HOFFMAN PC Interface Tool also supports text message and email alerting to a service 

technician when an alarm occurs. In addition, the tool also provides data logging capability for data analysis.

USB communication mode 

Note:

 before connecting the unit to the PC, make note of Comm Ports present. After the unit is connected to the PC, a new Comm Port will 

be added to the list. Recommend using the new Comm Port.
•  In the nVent HOFFMAN A.C. Monitor main screen, click on 

Tools

 and uncheck Use 

Ethernet

•  Click on 

Tools

 menu again, the 

Comm Port

 menu is now enabled

•  Put the mouser icon to the 

Comm Port

 and to the right there is small box with dropdown arrow

•  Click on the dropdown arrow next to the small box to view the list of the Comm Port
•  Write down the list of the Comm Port
•  Connect the Mini-b USB cable from the PC or laptop to the A/C unit
•  Click on 

Tools

 menu and point the mouser icon to the 

Comm Port

, the small box with dropdown arrow presents to the right

•  Click on the dropdown arrow and select the newest or higher number of the Comm Port

To view the controller data information from the A/C unit 

•  In the nVent HOFFMAN A.C. Monitor main screen, select 

Single ACU Monitor

 tab.

•  Click on 

Enable Comm

 button, then the screen will be displayed the enclosure air temperature and other temperature settings information 

include the unit of measure.

•  The 

Enable Comm

 text on the button now changes to 

Disable Comm

.

•  To stop the communication, click on the 

Disable Comm

 button and it will change to Enable Comm.

To change the temperature settings to the controller 

•  In the nVent HOFFMAN A.C. Monitor main screen, select 

Single ACU Settings

 tab.

• 

Note:

 the 

Change Settings

 button is disable and all settings are grayed out. Click on 

Read Settings

 button, all settings are now displayed 

on screen and the 

Change Settings

 button is now enable.

•  To change any of the temperature setting, Unit ID, or Station Name, simply click up/down arrow on right of the box or highlight the current 

value and type the new value in the box.

•  Check the box on the left, then click on 

Change Setting

 buttons to save the new setpoint.

•  Click on 

Read Settings

 again to verify the new setpoint.

•  Select 

Single ACU Monitor

 tab and click on 

Enable Comm

 to read the new temperature settings from the controller.

•  Each of the setpoint should match the new variables that just entered from the 

Single ACU Settings

 tab.

To view and change the ethernet card (RAC) information 

•  In the nVent HOFFMAN A.C. Monitor main screen, select 

Single ACU Ethernet Info

 tab and notice that the 

Reprogram ACU

 button is disabled.

•  Click on 

Read Ethernet Info

 button, the Ethernet information will be displayed and the 

Reprogram ACU

 button is enable.

•  To change the Ethernet configuration such as Device IP Address, Gateway IP, and Trap IP, make sure to change the 

Community

 string to 

private

 from 

public

. Note that case is very sensitive. The wording must be lower case only. 

•  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.

Содержание X2302

Страница 1: ...Extreme AC Air Conditioner X2302 Model Instruction Manual P N 89215748 Rev E...

Страница 2: ......

Страница 3: ...rgizing the controller 10 Control status indication 10 Displaying and changing program settings 13 To view or access the settings 13 Heat cool operating parameters 13 Alarm parameters 13 Displaying te...

Страница 4: ...ing the air conditioner to the enclosure Refer to the nameplate for proper electrical current requirements and then connect the power cord to a properly grounded power supply Minimum circuit ampacity...

Страница 5: ...in upright position during operation 5 To avoid cross threading mounting inserts start bolts by hand before tightening with a wrench or ratchet driver 6 Refer to the top of the nameplate for electrica...

Страница 6: ...g cutout dimensions 22 22 564 3X 48 12 95 24 3X 5 00 127 3X 10 63 270 3X 16 25 413 3X 21 25 540 3X 43 11 3X 4 58 116 3X 9 15 232 12X 31 8 20 32 516 8 40 213 80 20 89215771 Cutout Dimensions Mounting G...

Страница 7: ...nVent com HOFFMAN 7 Wire diagram 89206067 REV C...

Страница 8: ...8 nVent com HOFFMAN Schematics 89206866 REV B J3...

Страница 9: ...3016SP 89083016SP 6 Switch MALF 89096948SP 89096948SP 7 Filter Drier 52602803SP 52602803SP 8 Coil Condenser 20102001SP 20102001SP 9 Coil Evaporator 89204519SP 89204519SP 10 Controller Smart 89202719SP...

Страница 10: ...ssures to equalize in order for the air conditioner to restart Operating the air conditioner below the minimum ambient temperature or above the maximum ambient temperatures indicated on the nameplate...

Страница 11: ...on Indication Icon Status C White When operating temperature in degrees Celsius ON F White When operating temperature in degrees of Fahrenheit ON Main Field Line 1 White Display inlet temperature ON M...

Страница 12: ...12 nVent com HOFFMAN...

Страница 13: ...ain screen wait one minute with no action or Press arrow few times until ESC displays then press button to return to UoF screen From the UoF screen Press arrow few times until LOG Out message displays...

Страница 14: ...creen will be automatically revert to the main screen Note if no alarms are present then only ESC will be displayed in the folder There are seven possible alarms non latching detectable by the control...

Страница 15: ...ature data on screen There are two temperature probes in the air conditioner where one is reading the enclosure air temperature incoming to the air conditioner and other is reading the cooled air leav...

Страница 16: ...secondary units 2 The primary unit monitors the enclosure temperatures of all the units and manages the ON OFF status of cooling and heating based on the unit reporting the highest temperature 3 When...

Страница 17: ...utton to access to parameter H menu Parameter Description Available Range PS Settings Default H01 Mode SA stand alone PS primary secondary SA PS primary secondary LL lead lag H02 Device ID 1 up to 10...

Страница 18: ...conditioner unit remote communication features Air conditioners that include the optional nVent HOFFMAN network card RAC module have remote communication capabilities utilizing SNMP Modbus TCP EtherN...

Страница 19: ...west or higher number of the Comm Port To view the controller data information from the A C unit In the nVent HOFFMAN A C Monitor main screen select Single ACU Monitor tab Click on Enable Comm button...

Страница 20: ...enclosure air temperature and other temperature settings information include the unit of measure The Enable Comm text on the button now changes to Disable Comm To stop the communication click on the D...

Страница 21: ...e allows to read and write Click on Enable Comm button to communicate to the network card and read the temperature information from the controller Now the temperature settings information in the contr...

Страница 22: ...8 J1 GROUND G0 1 BLK40 POWER 24VAC G 2 WHT41 J2 NA 5V 1 NA S3 2 INLET TEMP PROBE S1 3 RED NA Y1 4 DOOR OPEN SWITCH ID1 5 WHT63 GROUND O 6 WHT RESERVED S5 7 OUTLET TEMP PROBE S2 8 RED45 NA Y2 9 MAL FUN...

Страница 23: ...e and convenience of reputable refrigeration repair service personnel for recharging the air conditioner Inlet air filter Proper maintenance of the ambient air filter is critical to normal operation o...

Страница 24: ...c 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...

Страница 25: ...cabinet and surrounding area to ensure adequate airflow to and from the unit on both the inlet and outlet air channels for the ambient and cabinet air Comments Seals Gaskets and Leaks Inspect and repa...

Страница 26: ...tage and retest or contact certified electrician Is the controller illuminated Is there correct supply voltage to controller 24 V DC Possible Causes 24 V Transformer Rectifier Check Wiring Replace con...

Страница 27: ...and wiring Clean replace filter and clean condenser coil Replace seals and gaskets on enclosure Monitor for normal operation Possible Causes Low Refrigerant Leak Check controller settings YES YES YES...

Страница 28: ...nVent com en us cooling field service request F GAS INFORMATION X230216GXXX X230226GXXX Refrigerant K hlmittel Ch odziwo R134a R134a GWP 1430 1430 Factory Charge F llmenge durch Hersteller Op ata Fab...

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