nvent SPECTRACOOL G28 Instruction Manual
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nvent SPECTRACOOL G28 Instruction Manual

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SPECTRACOOL
Air Conditioner
G28 Model 400/460V 3-PhAse
INSTRUCTION MANUAL
Rev. C
© 2018 nVent
P/N 89145707
89145707

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Summary of Contents for nvent SPECTRACOOL G28

  • Page 1 SPECTRACOOL Air Conditioner G28 Model 400/460V 3-PhAse INSTRUCTION MANUAL Rev. C © 2018 nVent 89145707 P/N 89145707...

  • Page 2: Table Of Contents

    Table 9 - Functional Data .....................................16 Table 10 - Unit Characteristics ..................................17 SERVICE DATA ....................................18 Table 11 - Components List ..................................18 WARRANTY AND RETURN POLICY Visit https://hoffman.nvent.com/en/hoffman/warranty-information for Product warranty and return policy. © 2018 nVent 89145707 - 2 -...

  • 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

    7. Allow unit to remain upright for a minimum of five (5) minutes before starting. CAUTION Air conditioner must be in an upright position during operation to avoid damaging the air conditioner unit. © 2018 nVent 89145707 - 4 -...
  • Page 5 28100013 Surface Mount 89059115 Partial Recess Mount Cut-out Drawing Figure 1 © 2018 nVent 89145707 - 5 -...
  • Page 6 REMOVAL OUT SIDES 15.26 387.6 NOTE: APPROVED TO TYPE 3R/4/12. 89145842 Rev. B MOUNTING GASKET SUPPLIED (NOT SHOWN). ACCESS HOLE TO .375 [9.5] OD DRAIN STUB Detail Drawing Figure 2 Applying Gasket Figure 3 © 2018 nVent 89145707 - 6 -...

  • Page 7: Operating The Air Conditioner

    Normally the home screen will display continuously. When applicable, the compressor restart delay countdown, and descriptions of all active alarms, will display in sequence alternating with the home screen. Home Screen Figure 4 © 2018 nVent 89145707 - 7 -...

  • Page 8: Interacting With The Digital Display

    If already at the bottom menu item, no action will be performed. When at a screen with a numerical entry: • The DOWN ARROW button will decrease the value. If already at the minimum permitted value, no action will be performed. © 2018 nVent 89145707 - 8 -...

  • Page 9: Main Menu Choices

    System Settings (view only) SYSTEM SETTINGS MENU CHOICES • Current Limit Setting (view only) • MALF Activate (view only) • MALF Deactivate (view only) • HPC Fan On (view only) • HPC Fan Off (view only) © 2018 nVent 89145707 - 9 -...
  • Page 10 3:00 – 5:00 restart delay Standard models are not wired for Disable switch Normally Open or this option and to maintain normal Normally Open input Normally Closed operation this must be set to Normally Open © 2018 nVent 89145707 - 10 -...

  • Page 11: Controller Parameters

    As an example, if the cooling set-point is 95 F and the temperature scale is changed to Celsius, the set-point will be converted to 35 C. © 2018 nVent 89145707...

  • Page 12: Controller Features

    The alarm will clear, and the compressor and condenser fan will restart when the air temperature rises back up to an acceptable level. © 2018 nVent 89145707 - 12 -...

  • Page 13: Remote Access Control

    The optional Remote Access Control offers communication capabilities that extend those described in this instruction manual. Please refer to the Remote Access Control manual for instructions and other information related to this option. © 2018 nVent 89145707 - 13 -...
  • Page 14 Wiring Diagram Figure 6 © 2018 nVent 89145707 - 14 -...

  • Page 15: Maintenance

    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. © 2018 nVent 89145707...

  • Page 16: Refrigerant Loss

    65-80 1.1 - 1.4 23 - 38 99 - 166 16 - 34 16 - 35 G280(4/6)46GXXX 80-100 1.1 - 1.6 31 - 57 136 - 245 18 - 40 19 - 41 © 2018 nVent 89145707 - 16 -...
  • Page 17 Rated Voltage (50/60 Hz) 400/460V 3-Phase Rated Frequency 50/60 Hz Voltage Range +/- 10% of rated Cooling Amps at Max Conditions 1.7/1.9 Compressor RLA / LRA 1.7/7.7 Evaporator Fan RLA 0.15 Condenser Fan RLA 0.21 © 2018 nVent 89145707 - 17 -...

  • Page 18: Service Data

    Impeller Evaporator 89128198SP Thermal Expansion Valve 89063955SP Fuse 10 Amp 89128646SP Temperature Sensor, Inlet Air 093008116SP Temperature Sensor, Condenser Coil and Evaporator Outlet 89131494SP For additional technical support, contact nVent Equipment Protection at 800-896-2665. © 2018 nVent 89145707 - 18 -...
  • Page 19 NOTES © 2018 nVent 89145707 - 19 -...
  • Page 20 Rev. C © 2018 nVent 89145707 P/N 89145707...

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