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Summary of Contents for nVent Hoffman SPECTRACOOL NHZ43
- Page 1 NHZ43 Instruction Manual...
- Page 2 SPECTRACOOL Air Conditioner, HAzArdous LoCAtions nHz43 ModeL INSTRUCTION MANUAL Rev. I © 2019 nVent 89117143 P/N 89117143...
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Page 3: Table Of Contents
TABLE OF CONTENTS WARRANTY AND RETURN POLICY ..............................3 Receiving the Air Conditioner ................................3 Handling and Testing the Air Conditioner ............................4 How to Read Model Numbers.................................4 Technical Information..................................4 General ..........................................4 Sequence of Operation....................................4 Cooling .......................... -
Page 4: Warranty And Return Policy
WARRANTY AND RETURN POLICY https://hoffman.nvent.com/en/hoffman/warranty-information GENERAL SAFETY INFORMATION Please observe the following general safety instructions when assembling and operating the unit: • Assembling, installing and servicing must only be performed by properly trained specialists. • When transporting the enclosure with the cooling unit externally mounted, alwa ys use an additional shipping brace to support the cooling unit. -
Page 5: Handling And Testing The Air Conditioner
HANDLING AND TESTING THE AIR CONDITIONER If the air conditioner has been in a horizontal position, be certain it is placed in an upright, vertical or mounting position for a minimum ��� e (5) minutes before operating. TEST FOR FUNCTIONALITY BEFORE MOUNTING THE AIR CONDITIONER TO THE ENCLOSURE. Refer to the nameplate for proper electrical current requirements, and then wire the unit to a properly grounded power supply using copper conductors only. -
Page 6: Standard And Optional Component Operation
STANDARD AND OPTIONAL COMPONENT OPERATION SMART CONTROLLER The standard NHZ43 air conditioner uses our standard smart controller. The setpoint equals the temperature that the air conditioner turns off. The controller has a 7 F differential from setpoint until it calls for cooling. An example of operation is shown below. FOR COOLING (75-100 F RANGE) •... -
Page 7: Schematics And Wiring Diagrams
SCHEMATICS AND WIRING DIAGRAMS GENERIC 115V SCHEMATIC (ACTUAL UNIT OPTIONS MAY VARY) GENERIC 230V SCHEMATIC (ACTUAL UNIT OPTIONS MAY VARY) C-NET INDUSTRIAL LTD. | +44(0)121 544 8608 | INFO@CNET-IS.CO.UK | WWW.CNET-IS.CO.UK 89117143 - 6 -... -
Page 8: Generic 460V Schematic (Actual Unit Options May Vary)
GENERIC 460V SCHEMATIC (ACTUAL UNIT OPTIONS MAY VARY) C-NET INDUSTRIAL LTD. | +44(0)121 544 8608 | INFO@CNET-IS.CO.UK | WWW.CNET-IS.CO.UK 89117143 - 7 -... -
Page 9: Generic 115V Wire Diagram (Actual Unit Options May Vary)
GENERIC 115V WIRE DIAGRAM (ACTUAL UNIT OPTIONS MAY VARY) C-NET INDUSTRIAL LTD. | +44(0)121 544 8608 | INFO@CNET-IS.CO.UK | WWW.CNET-IS.CO.UK 89117143 - 8 -... -
Page 10: Generic 230V Wire Diagram (Actual Unit Options May Vary)
GENERIC 230V WIRE DIAGRAM (ACTUAL UNIT OPTIONS MAY VARY) C-NET INDUSTRIAL LTD. | +44(0)121 544 8608 | INFO@CNET-IS.CO.UK | WWW.CNET-IS.CO.UK 89117143 - 9 -... -
Page 11: Generic 460V Wire Diagram (Actual Unit Options May Vary)
GENERIC 460V WIRE DIAGRAM (ACTUAL UNIT OPTIONS MAY VARY) C-NET INDUSTRIAL LTD. | +44(0)121 544 8608 | INFO@CNET-IS.CO.UK | WWW.CNET-IS.CO.UK 89117143 - 10 -... -
Page 12: Dimensional Drawing
DIMENSIONAL DRAWING 11.50 292.1 9.37 238.1 19.6 14.00 355.7 DOOR SWITCH/ MALFUNCTION ALARM CONNECTOR 10.01 DOOR SWITCH/ 254.3 MALFUNCTION ALARM REMOTE ACCESS MATING CONNECTOR CONTROLLER (SHIPPED LOOSE) (OPTIONAL) SMART 5.00 CONTROLLER 12.7 7.88 ENCLOSURE AIR IN AMBIENT AIR IN REMOVABLE HANGING TABS 7.88 POWER... -
Page 13: General Safety Information
GENERAL SAFETY INFORMATION Please observe the following general safety instructions when assembling and operating the unit: • Assembling, installing and servicing must only be performed by properly trained specialists. • When transporting the enclosure with the cooling unit externally mounted, alwa ys use an additional shipping brace to support the cooling unit. - Page 14 CAUTION MISE EN GARDE The unit is meant to be installed in an enclosure suitable for the environment listed previously and such that ����� wiring and controls are only accessible with the use of a tool. When installed on an enclosure, only the front/face side, ambient air in, and ambient air out can be exposed to the environment.
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Page 15: Smart Controller
SMART CONTROLLER INTRODUCTION The smart controller is a parametric controller for the complete management of air conditioners. All settings are pre-pr ogrammed at the factory. Cooling set-points, cooling differential and high/low temperature alarm set-points can be adjusted by the user. Alarms are outputted through a relay contact. ENERGIZING THE CONTROLLER The controller is wired and programmed at the factory to be energized when power is supplied to the air conditioner. -
Page 16: Displaying And Changing Program Variables
DISPLAYING AND CHANGING PROGRAM VARIABLES Access: To view and/or change parameters, press and hold the Prg and Sel buttons for greater than 5 seconds. Press the up or down arrow buttons until “22” is displayed, then press Sel button. When “S-P” is displayed, press Sel. -
Page 17: Alarm Input Connection
ALARM INPUT CONNECTION The smart controller can accept a dry contact/switch input via the connector terminals marked WHT/DS1 and WHT/DS2 located on the enclosure side of the unit. This input is associated with the controller display alarm mnemonic TP (door open and/or smoke detected). To use this feature, remove the jumper wire connecting terminals DS1 and DS2 and replace with customer supplied wires from the enclosure door switch to DS1 and DS2 terminals. -
Page 18: Remote Access Control
REMOTE ACCESS CONTROL AIR CONDITIONER UNIT COMMUNICATION FEATURES Air conditioner units equipped with communication capabilities provide SNMP , EtherNet/IP, Modbus TCP and Pr��� p rotocols through Ethernet and Modbus R TU protocol via USB. Hoffman Cooling has a PC Interface Tool available for download that can utilize either mode to communicate with the air conditioner unit. -
Page 19: Using The Pc Interface Tool
USING THE PC INTERFACE TOOL The PC Interface Tool gives the user the ability to communicate with the air conditioner unit to read/write parameters using either Ethernet or USB connections. USB COMMUNICATION MODE NOTE: Before connecting unit to the PC, make note of the comm ports present. After the unit is connected to the PC, a new comm port will be added to the list. -
Page 20: Ethernet Communication Mode
ETHERNET COMMUNICATION MODE • From Tools menu select Use Ethernet • When Use Ethernet is checked, Comm Port selection is disabled, Device IP and Community boxes are shown and Ethernet communication can be used. • Enter unit’ s IP Address and Community string in Device IP and Community boxes at the bottom of the PC Interface Tool. -
Page 21: Remote Access Control Pin-Out
REMOTE ACCESS CONTROL PIN-OUT FUNCTION NAME PIN # COOL C1/2 U1 OUTPUTS C1/2 ALARM RELAY OUTPUT ENCLOSURE DOOR SWITCH MALFUNCTION NC SWITCH ID3 (na) ID4 (na) DIGITAL INPUT GROUND ID GND U2 INPUTS T1, EVAP IN THERMISTOR T2, EVAP OUT THERMISTOR T1, T2 GND CONTROLLER POWER CONTROLLER POWER... -
Page 22: Maintenance
MAINTENANCE COMPRESSOR The compressor requires no maintenance. It is hermetically sealed, properly lubricated at the factory and should provide years of satisfactory operating service. Under no circumstances should the access ����� vers be loosened, removed or tampered with. Breaking of seals on compressor �������� during warranty period will void warranty on hermetic system. -
Page 23: Condenser And Evaporator Air Movers
CONDENSER AND EVAPORATOR AIR MOVERS Impeller motors require no maintenance. All bearings, shafts, etc. are lubricated during manufacturing for the life of the motor. If the condenser impeller motors (ambient impellers) should fail, it is not necessary to remove the air conditioner from the cabinet or enclosure to replace the blower. -
Page 24: Unit Characteristics
UNIT CHARACTERISTICS Model NHZ431216GXXX NHZ431226GXXX NHZ431246GXXX Dimensional Data Height 43” / 1092.2 mm Width 11.5” / 292.1 mm Depth 14” / 355.6 mm Unit Weight 127 lbs / 58 kg 127 lbs / 58 kg 138 lbs / 63 kg Type 12/4/4X/3R Unit Protection Rating Class 1 Division 2 Groups A, B, C, D T4A... -
Page 25: Service Data
SERVICE DATA COMPONENTS LIST Part Description Part Number 115 V 1 PHASE 230 V 1 PHASE 460 V 3 PHASE Capacitor, Compressor, Start 10103232SP 10103208SP Capacitor, Condenser Impeller 52603213SP 52603214SP 52603214SP Capacitor, Evaporator Impeller 52603213SP 52603214SP 52603214SP Coil, Condenser 89068466SP 89068466SP 89068466SP Coil, Evaporator... -
Page 26: Nhz431216Gxxx Pressure Tables
NHZ431216GXXX PRESSURE TABLES NHZ431216GXXX 50hz L=SUCTION (± 5PSIG); H=HEAD (-10/+20PSIG) ENCLOSURE TEMPERATURE (°F) °F NHZ431216GXXX 60hz L=SUCTION (± 5PSIG); H=HEAD (-10/+20PSIG) ENCLOSURE TEMPERATURE (°F) °F C-NET INDUSTRIAL LTD. | +44(0)121 544 8608 | INFO@CNET-IS.CO.UK | WWW.CNET-IS.CO.UK 89117143 - 25 -... -
Page 27: Nhz431226Gxxx Pressure Tables
NHZ431226GXXX PRESSURE TABLES NHZ431226GXXX 50hz L=SUCTION (± 5PSIG); H=HEAD (-10/+20PSIG) ENCLOSURE TEMPERATURE (°F) °F NHZ431226GXXX 60hz L=SUCTION (± 5PSIG); H=HEAD (-10/+20PSIG) ENCLOSURE TEMPERATURE (°F) °F C-NET INDUSTRIAL LTD. | +44(0)121 544 8608 | INFO@CNET-IS.CO.UK | WWW.CNET-IS.CO.UK 89117143 - 26 -... -
Page 28: Nhz431246Gxxx Pressure Tables
NHZ431246GXXX PRESSURE TABLES NHZ431246GXXX 50hz L=SUCTION (± 5PSIG); H=HEAD (-10/+20PSIG) ENCLOSURE TEMPERATURE (°F) °F NHZ431246GXXX 60hz L=SUCTION (± 5PSIG); H=HEAD (-10/+20PSIG) ENCLOSURE TEMPERATURE (°F) F-GAS INFORMATION NHZ431216GXXX NHZ431226GXXX NHZ431246GXXX Refrigerant Kühlmittel R134a R134a R134a Chłodziwo 1430 1430 1430 Factory Charge 1021 Grams 1077 Grams 1162 Grams... -
Page 29: Trouble Shooting
TROUBLE SHOOTING BASIC AIR CONDITIONING TROUBLE SHOOTING CHECK LIST - SMART CONTROLLER 1. Check manufacturer’s nameplate located on the unit for correct power supply. 2. Turn on power to the unit. The controller will display a start up sequence then revert to the normal temperature display mode. -
Page 30: Symptoms And Possible Causes - Remote Access Control Version
YES, proceed to step 7. NO, possible problem: » Open motor winding(s) » Stuck impeller(s) Repair or Replace defective part » Obstructed wheel(s) » Defective motor capacitor(s) 7. Carefully check the compressor for proper operation - motor should cause slight vibration and the outer case of the compressor should be warm. - Page 31 NOTES C-NET INDUSTRIAL LTD. | +44(0)121 544 8608 | INFO@CNET-IS.CO.UK | WWW.CNET-IS.CO.UK 89117143 - 30 -...
- Page 32 NOTES C-NET INDUSTRIAL LTD. | +44(0)121 544 8608 | INFO@CNET-IS.CO.UK | WWW.CNET-IS.CO.UK 89117143 - 31 -...
- Page 33 Rev. I C-NET INDUSTRIAL LTD. | +44(0)121 544 8608 | INFO@CNET-IS.CO.UK | WWW.CNET-IS.CO.UK P/N 89117143 89117143...
- Page 34 +44 (0)121 544 6808 info@cnet-is.co.uk C-NET Industrial Solutions Limited Suite 12, Sandwell Business Centre Oldbury Road Smethwick B66 1NN United Kingdom...
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