nvent SPECTRACOOL N36 Series Instruction Manual
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nvent SPECTRACOOL N36 Series Instruction Manual

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SPECTRACOOL
Air Conditioner
n36 Model
INSTRUCTION MANUAL
Rev. A
© 2022 nVent
89215758
P/N 89215758

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Summary of Contents for nvent SPECTRACOOL N36 Series

  • Page 1 SPECTRACOOL Air Conditioner n36 Model INSTRUCTION MANUAL Rev. A © 2022 nVent 89215758 P/N 89215758...

  • Page 2: Table Of Contents

    Symptoms and Possible Causes - Thermostat Version ............................... 41 Basic Air Conditioning Trouble Shooting Check List - Remote Access Control Version ....................42 Symptoms and Possible Causes - Remote Access Control Version ........................... 43 © 2022 nVent 89215758 - 2 -...

  • Page 3: Warranty And Return Policy

    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: Technical Information

    Unit is set at the factory, no adjustment necessary. At a saturated condenser temperature of 85 F (95 psig), the condenser fans will power off. At a saturated condenser temperature of 118 F (165 psig), the condenser fans will power on. © 2022 nVent 89215758 - 4 -...

  • Page 5: Contactor

    The unit will remain electrified when the door switch is operated with the evaporator fan continuing to operate, and potentially, if temperatures are low enough, the heater may continue to operate on outdoor models. © 2022 nVent 89215758 - 5 -...

  • Page 6: Schematics And Wiring Diagrams For Thermostat Control

    SCHEMATICS AND WIRING DIAGRAMS FOR THERMOSTAT CONTROL N36 1-PHASE GENERIC SCHEMATIC (ACTUAL UNIT OPTIONS MAY VARY) 88026037 N36 8K BTU 230V ONLY SCHEMATIC (ACTUAL UNIT OPTIONS MAY VARY) N36 3-PHASE GENERIC SCHEMATIC (ACTUAL UNIT OPTIONS MAY VARY) © 2022 nVent 89215758 - 6 -...
  • Page 7 89062969 © 2022 nVent 89215758 - 7 -...

  • Page 8: N36 1-Phase Generic Wire Diagram (Actual Unit Options May Vary)

    ORG6 LIMIT START SWITCHES RED5 CAP. START RELAY ENCLOSURE IMPELLER RED R WHT61 CAP. YEL4 ENC. AMB. AMBIENT IMPELLER YEL S RED R BLK12 BLK20 COMPRESSOR 89073634 COMP HTR OR C/E (OPTIONAL) (OPTIONAL) © 2022 nVent 89215758 - 8 -...

  • Page 9: N36 8K Btu 230V Only Wire Diagram (Actual Unit Options May Vary)

    N36 8K BTU 230V ONLY WIRE DIAGRAM (ACTUAL UNIT OPTIONS MAY VARY) © 2022 nVent 89215758 - 9 -...

  • Page 10: N36 3-Phase Generic Wire Diagram (Actual Unit Options May Vary)

    N36 3-PHASE GENERIC WIRE DIAGRAM (ACTUAL UNIT OPTIONS MAY VARY) © 2022 nVent 89215758 - 10 -...

  • Page 11: Dimensional Drawings

    DIMENSIONAL DRAWINGS WITH THERMOSTATS 89068455 © 2022 nVent 89215758 - 11 -...

  • Page 12: Installation Instructions

    24 VAC terminal strip by noting the locations on the correct wiring diagram. 7. Set thermostat for required cabinet temperature. Refer to Sequence of Operation on page 4 for thermostat adjustment and operation. 89074387 SURFACE MOUNT Figure 1 Cutout Dimensions © 2022 nVent 89215758 - 12 -...

  • Page 13: Digital Thermostat Controller (Optional)

    Note: nVent Hoffman network card (RAC module) is an optional accessory, therefore, some of the air conditioners ship without the network card but it is upgradable upon request.
  • Page 14 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 89215758 - 14 -...
  • Page 15 © 2022 nVent 89215758 - 15 -...

  • Page 16: Displaying And Changing Program Settings

    Default value High temperature alarm setpoint 125 F Low temperature alarm setpoint 40 F Door open alarm setting ArOP Alarm relay output NOTES: (4) The alarm relay output logic is designed to be configurable © 2022 nVent 89215758 - 16 -...
  • Page 17 No effect on function low temp alarm setpoint Compressor and condenser fan turns OFF for the duration of Frost alarm Evaporator coil freezes alarm. Alarm clears when the Closed outlet temperature sensor reaches 59 F © 2022 nVent 89215758 - 17 -...

  • Page 18: 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 89215758 - 18 -...

  • Page 19: 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 3 Primary-secondary network connectivity © 2022 nVent 89215758 - 19 -...

  • Page 20: 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 4 Lead-Lag network connectivity © 2022 nVent 89215758 - 20 -...

  • Page 21: 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 22: 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 89215758 - 22 -...

  • Page 23: 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 89215758 - 23 -...

  • Page 24: 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 25: 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 89215758 - 25 -...

  • Page 26: Schematic And Wiring Diagram For Remote Access Control

    SCHEMATIC AND WIRING DIAGRAM FOR REMOTE ACCESS CONTROL N36 1-PHASE GENERIC SCHEMATIC (ACTUAL UNIT OPTIONS MAY VARY) 89204510 REV. B N36 8K BTU 230V ONLY SCHEMATIC (ACTUAL UNIT OPTIONS MAY VARY) 89214184 REV A © 2022 nVent 89215758 - 26 -...

  • Page 27: N36 3-Phase Generic Schematic (Actual Unit Options May Vary)

    N36 3-PHASE GENERIC SCHEMATIC (ACTUAL UNIT OPTIONS MAY VARY) 89204833 REV. B © 2022 nVent 89215758 - 27 -...

  • Page 28: N36 1-Phase Generic Wire Diagram For Remote Access Control (Actual Unit Options May Vary)

    N36 1-PHASE GENERIC WIRE DIAGRAM FOR REMOTE ACCESS CONTROL (ACTUAL UNIT OPTIONS MAY VARY) 89214153 REV.A © 2022 nVent 89215758 - 28 -...

  • Page 29: N36 8K Btu 230V Only Wire Diagram (Actual Unit Options May Vary)

    N36 8K BTU 230V ONLY WIRE DIAGRAM (ACTUAL UNIT OPTIONS MAY VARY) 89214143 REV.A © 2022 nVent 89215758 - 29 -...

  • Page 30: N36 3-Phase Generic Wire Diagram For Remote Access Control (Actual Unit Options May Vary)

    N36 3-PHASE GENERIC WIRE DIAGRAM FOR REMOTE ACCESS CONTROL (ACTUAL UNIT OPTIONS MAY VARY) 89214159 REV.A © 2022 nVent 89215758 - 30 -...

  • Page 31: Dimensional Drawings

    DIMENSIONAL DRAWINGS N36 GENERIC MODEL DRAWING WITH REMOTE ACCESS CONTROL 89082928 © 2022 nVent 89215758 - 31 -...

  • Page 32: Installation Instructions With Remote Access Control

    Electrical circuit should be fused with slow blow or HACR circuit breaker. 6. Set controller setpoints for required cabinet temperature. Refer to DISPLAYING AND CHANGING PROGRAM Settings on page 16 for setpoint adjustment and operation. 89074387 Surface Mount Figure 5 Cut-out Drawing © 2022 nVent 89215758 - 32 -...

  • Page 33: Maintenance

    1. Flush the filter with warm water from the exhaust side to the intake side. DO NOT USE CAUSTICS. 2. After flushing, allow filter to drain. Placing it with a corner down will assure complete drainage. © 2022 nVent 89215758...

  • Page 34: Condenser And Evaporator Air Movers

    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 35: Refrigerant Properties Chart (R 134A)

    13-15 N360646GXXX 80-100 1.4-1.9 17-26 9-19 65-80 5.6-7.6 12-29 14-30 N360816GXXX 80-100 6.2-9.1 16-34 16-36 65-80 3.8-5.0 13-31 8-20 N360826GXXX 80-100 4.1-5.6 17-42 11-22 65-80 1.4-1.9 12-28 10-22 N360846GXXX 80-100 1.5-2.1 15-35 12-31 © 2022 nVent 89215758 - 35 -...

  • Page 36: 6000 Btu/Hr. Unit Characteristics

    +/- 10% of rated Cooling Amps at Max Conditions 8.6/9.4 4.7/5.0 1.8/2.1 Heating Amps 12.2 Compressor RLA / LRA 5.5/39.2 2.4/23.0 1.7/8.1 Evaporator Fan RLA .78/.93 .39/.53 .39/.53 Condenser Fan RLA .78/.93 .39/.53 .39/.53 © 2022 nVent 89215758 - 36 -...

  • Page 37: 8000 Btu/Hr. Unit Characteristics

    +/- 10% of rated Cooling Amps at Max Conditions 9.9/11.6 5.1/6.6 2.3/2.5 Heating Amps 12.2 Compressor RLA / LRA 5.4/38 3.7/19.0 2.0/16.0 Evaporator Fan RLA .78/.93 .39/.53 .39/.53 Condenser Fan RLA 1.2/1.5 .39/.53 .39/.53 © 2022 nVent 89215758 - 37 -...

  • Page 38: Service Data

    Impeller, Condenser 10-1091-138 10-1091-124 10-1091-124 Impeller, Evaporator 10-1091-123 10-1091-124 10-1091-124 Relay, Compressor Start 89172340 Relay, Phase Monitor 10-1005-95 Thermal Expansion Valve 89074083 89074083 10-1040-42 Thermostat, SPDT, 55-100F 10-1061-16 10-1061-16 10-1061-16 Transformer, Input Power 10-1006-128 © 2022 nVent 89215758 - 38 -...

  • Page 39: Controller Components List

    0.89 Tons 0.65 Tons 1.09 Tons 1.30Tons 1.34Tons Equivalent 0,81 Tonnen 0,89 Tonnen 0,65 Tonnen 1,09 Tonnen 1,30 Tonnen 1,34 Tonnen Ekwilalent 0,81 Tony 0,89 Tony 0,65 Tony 1,09 Tony 1,30 Tony 1,34 Tony © 2022 nVent 89215758 - 39 -...

  • Page 40: Trouble Shooting

    (replace upper access panel for safety). This will activate the switch in the thermostat. Turn the power on and if all impellers and the compressor come on, the thermostat needs to be replaced. © 2022 nVent 89215758 - 40 -...

  • Page 41: Symptoms And Possible Causes - Thermostat Version

    Unit blows breakers Short in system Drain plugged Drain tube kinked Getting water in enclosure Enclosure not sealed (allowing humidity in) Mounting gasket damaged For additional technical support, contact nVent Equipment Protection at 800-896-2665. © 2022 nVent 89215758 - 41 -...

  • Page 42: Basic Air Conditioning Trouble Shooting Check List - Remote Access Control Version

    » Unit still in Recycle Time Delay mode » Enclosure temperature below cooling Wait and/or heat enclosure thermistor T1 setpoint temperature 6. The compressor and the condenser (Ambient or “HOT” air) impeller(s) should turn on. Is there adequate airflow? © 2022 nVent 89215758 - 42 -...

  • Page 43: Symptoms And Possible Causes - Remote Access Control Version

    Unit blows breakers Short in system Drain plugged Drain tube kinked Getting water in enclosure Enclosure not sealed (allowing humidity in) Mounting gasket damaged For additional technical support, contact nVent Equipment Protection at 800-896-2665. © 2022 nVent 89215758 - 43 -...
  • Page 44 Rev. A © 2022 nVent 89215758 P/N 89215758...

This manual is also suitable for:

Spectracool n360 46g seriesSpectracool n360846g050

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