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Summary of Contents for nVent Hoffman SPECTRACOOL N28
- Page 1 N28 Instruction Manual...
- Page 2 SPECTRACOOL Air Conditioner n28 Model INSTRUCTION MANUAL Rev. G © 2020 nVent 89115550 P/N 89115550...
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Page 3: Table Of Contents
TABLE OF CONTENTS Warranty and Return Policy ..........................................2 RECEIVING THE AIR CONDITIONER ........................................3 HANDLING AND TESTING THE AIR CONDITIONER ..................................3 HOW TO READ MODEL NUMBERS ........................................3 For cooling (75-100 F range): ......................................4 For heating (55-65 F range): ......................................4 TECHNICAL INFORMATION .......................... -
Page 4: Receiving The Air Conditioner
RECEIVING THE AIR CONDITIONER Inspect the air conditioner. Check for concealed damage that may have occurred during shipment. Look for dents, scratches, loose assemblies, evidence of oil, etc. Damage evident upon receipt should be noted on the freight bill. Damage should be brought to the attention of the delivering carrier -- NO T to nVent Equipment Protection -- within 15 days of delivery. -
Page 5: For Cooling (75-100 F Range)
TECHNICAL INFORMATION SEQUENCE OF OPERATION The air conditioner comes standard with two internally mounted thermostats or remote access control. There are two modes of operation; heating and cooling. During heating and cooling modes the evaporator fan will be running. HEATING When the enclosure temperature is below the heating thermostat setpoint, power is applied to the heaters. -
Page 6: Schematics And Wiring Diagrams For Thermostat Control
SCHEMATICS AND WIRING DIAGRAMS FOR THERMOSTAT CONTROL GENERIC 115V 1-PHASE SCHEMATIC (ACTUAL UNIT OPTIONS MAY VARY) 89074302 GENERIC 230V 1-PHASE 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 89115550 - 5 -... -
Page 7: Generic 460V 1-Phase Schematic (Actual Unit Options May Vary)
GENERIC 460V 1-PHASE 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 89115550 - 6 -... -
Page 8: Generic 115V 1-Phase Wire Diagram (Actual Unit Options May Vary)
GENERIC 115V 1-PHASE WIRE DIAGRAM (ACTUAL UNIT OPTIONS MAY VARY) CUSTOMER SWITCH POWER BLOCK T'FORMER RELAY WHT61 BLU9 YEL10 RED62 BLK60 MALF SWITCH DOOR SWITCH (OPT.) (OPTIONAL) YEL65 SUPPRESSOR RED30 (OPTIONAL) YEL10 OR YEL65 COOLING T-STAT RED13 HEATING THERMAL DISPLAY (OPT.) T-STAT WHT41 TO THERMAL... -
Page 9: Generic 230V 1-Phase Wire Diagram (Actual Unit Options May Vary)
GENERIC 230V 1-PHASE 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 89115550 - 8 -... -
Page 10: Generic 460V 1-Phase Wire Diagram (Actual Unit Options May Vary)
GENERIC 460V 1-PHASE 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 89115550 - 9 -... -
Page 11: Dimensional Drawing
DIMENSIONAL DRAWING WITH THERMOSTATS 89068456 C-NET INDUSTRIAL LTD. | +44(0)121 544 8608 | INFO@CNET-IS.CO.UK | WWW.CNET-IS.CO.UK 89115550 - 10 -... -
Page 12: Installation Instructions
INSTALLATION INSTRUCTIONS 1. Inspect the air conditioner and verify correct functionality before mounting the air conditioner. See HANDLING AND TESTING THE AIR CONDITIONER on page 3. 2. Using the mounting gasket kit provided with the unit, install gaskets to the air conditioner, see Figure 1. -
Page 13: Remote Access Control (Optional)
REMOTE ACCESS CONTROL (OPTIONAL) INTRODUCTION The Remote Access Control is a parametric controller for the complete management of air conditioners. All settings are pre-pr ogrammed at the factory. Cooling/heating set-points, cooling/heating differential and high /low temperature alarm set-points can be adjusted by the user. Alarms are outputted through a relay contact and also can be accessed through an Ethernet connection utilizing SNMP , EtherNet/IP and Modbus TCP. -
Page 14: 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 15: Alarm Input Connection
ALARM INPUT CONNECTION The Remote Access Control can accept a dry contact/switch input via the two 18 AWG white wires located at the back of the air conditioner. This input is associated with the controller display alarm mnemonic TP (door open and/or smoke detected). -
Page 16: 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 17: 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 18: Remote Access Control Pin-Out
REMOTE ACCESS CONTROL PIN-OUT FUNCTION NAME PIN # WIRE # COOL ORG78 C1/2 HEAT BRN76 C1/2 ENCL MI BLK77 C3/4 U1 OUTPUTS No4 (na) C3/4 ALARM RELAY OUTPUT YEL39 YEL38 ALARM INPUT WHT63 CONNECTION MALFUNCTION NC SWITCH BLU88 ID3 (na) ID4 (na) ID5 (na) DIGITAL INPUT GROUND... -
Page 19: Schematics And Wiring Diagrams For Remote Access Control
SCHEMATICS AND WIRING DIAGRAMS FOR REMOTE ACCESS CONTROL GENERIC 115V 1-PHASE SCHEMATIC (ACTUAL UNIT OPTIONS MAY VARY) GENERIC 230V 1-PHASE SCHEMATIC (ACTUAL UNIT OPTIONS MAY VARY) 89115043 REV. A C-NET INDUSTRIAL LTD. | +44(0)121 544 8608 | INFO@CNET-IS.CO.UK | WWW.CNET-IS.CO.UK 89115550 - 18 -... -
Page 20: Generic 460V 1-Phase Schematic (Actual Unit Options May Vary)
GENERIC 460V 1-PHASE SCHEMATIC (ACTUAL UNIT OPTIONS MAY VARY) 89115043 REV. A C-NET INDUSTRIAL LTD. | +44(0)121 544 8608 | INFO@CNET-IS.CO.UK | WWW.CNET-IS.CO.UK 89115550 - 19 -... -
Page 21: Generic 115V 1-Phase Wire Diagram For Remote Access Control (Actual Unit Options May Vary)
GENERIC 115V 1-PHASE WIRE DIAGRAM FOR REMOTE ACCESS CONTROL (ACTUAL UNIT OPTIONS MAY VARY) C-NET INDUSTRIAL LTD. | +44(0)121 544 8608 | INFO@CNET-IS.CO.UK | WWW.CNET-IS.CO.UK 89115550 - 20 -... -
Page 22: Generic 230V 1-Phase Wire Diagram For Remote Access Control (Actual Unit Options May Vary)
GENERIC 230V 1-PHASE WIRE DIAGRAM FOR REMOTE ACCESS CONTROL (ACTUAL UNIT OPTIONS MAY VARY) 89115041 REV.A C-NET INDUSTRIAL LTD. | +44(0)121 544 8608 | INFO@CNET-IS.CO.UK | WWW.CNET-IS.CO.UK 89115550 - 21 -... -
Page 23: Generic 460V 1-Phase Wire Diagram For Remote Access Control (Actual Unit Options May Vary)
GENERIC 460V 1-PHASE WIRE DIAGRAM FOR REMOTE ACCESS CONTROL (ACTUAL UNIT OPTIONS MAY VARY) 89115546 REV.A C-NET INDUSTRIAL LTD. | +44(0)121 544 8608 | INFO@CNET-IS.CO.UK | WWW.CNET-IS.CO.UK 89115550 - 22 -... -
Page 24: Dimensional Drawing
DIMENSIONAL DRAWING WITH REMOTE ACCESS CONTROL 89082927 C-NET INDUSTRIAL LTD. | +44(0)121 544 8608 | INFO@CNET-IS.CO.UK | WWW.CNET-IS.CO.UK 89115550 - 23 -... -
Page 25: Installation Instructions With Remote Access Control
INSTALLATION INSTRUCTIONS WITH REMOTE ACCESS CONTROL 1. Inspect the air conditioner and verify correct functionality before mounting the air conditioner. See HANDLING AND TESTING THE AIR CONDITIONER on page 3. 2. Using the mounting gasket kit provided with the unit, install gaskets to the air conditioner, see Figure 2. -
Page 26: 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 compr����������� during warranty period will void warranty on hermetic system. -
Page 27: 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 one of 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 28: Unit Characteristics
UNIT CHARACTERISTICS Model N280416GXXX N280426GXXX N280446GXXX Dimensional Data Height 28” / 711.2 mm Width 11.5” / 292.1 mm Depth 14” / 355.6 mm Unit Weight 84 lbs / 38 kg 84 lbs / 38 kg 98 lbs / 44 kg Unit Protection Rating Type 12/4/4X/3R Cooling Data... -
Page 29: Service Data
SERVICE DATA COMPONENTS LIST Part Number Part Description 115 V 230 V 460 V 60 Hz Capacitor, Compressor, Start 89112001SP 10103208SP 10103208SP Capacitor, Condenser Impeller 52603213SP 52603214SP 52603214SP Coil, Condenser 89068416SP 89068416SP 89068416SP Coil, Evaporator 89068414SP 89068414SP 89068414SP Compressor 89111751SP 89111752SP 89111752SP Filter, Air, Reusable... -
Page 30: N280416Gxxx Pressure Tables
N280416GXXX PRESSURE TABLES N280416GXXX 50hz L=SUCTION (± 5PSIG); H=HEAD (-10/+20PSIG) ENCLOSURE TEMPERATURE (°F) °F N280416GXXX 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 89115550 - 29 -... -
Page 31: N280426Gxxx Pressure Tables
N280426GXXX PRESSURE TABLES N280426GXXX 50hz L=SUCTION (± 5PSIG); H=HEAD (-10/+20PSIG) ENCLOSURE TEMPERATURE (°F) °F N280426GXXX 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 89115550 - 30 -... -
Page 32: N280446Gxxx Pressure Tables
N280446GXXX PRESSURE TABLES N280446GXXX 60hz L=SUCTION (± 5PSIG); H=HEAD (-10/+20PSIG) ENCLOSURE TEMPERATURE (°F) °F F-GAS INFORMATION N280426GXXX N280416GXXX N280446GXXX N280425GXXX Refrigerant Kühlmittel R134a R134a Chłodziwo 1430 1430 Factory Charge 283 Grams 312 Grams Füllmenge durch Hersteller 283 Gramm 312 Gramm Opłata Fabryczna 283 Gramów 312 Gramów... -
Page 33: Trouble Shooting
TROUBLE SHOOTING BASIC AIR CONDITIONING TROUBLE SHOOTING CHECK LIST - THERMOSTAT VERSION 1. Check manufacturer’s nameplate located on the unit for correct power supply. 2. Turn on power to the unit. The evaporator (Enclosure or “COLD” air) impeller should come on. Is there ����... -
Page 34: Symptoms And Possible Causes - Thermostat Version
SYMPTOMS AND POSSIBLE CAUSES - THERMOSTAT VERSION SYMPTOM POSSIBLE CAUSE Clogged �� o n coil(s) Dir���� Impellers not running Unit won’t cool Compressor not running Compressor runs, but has bad valves Loss of refrigerant Low line voltage at start. Should be +/-10% rated voltage. Compressor motor stuck Compressor tries to start but won’t run Bad contactor... -
Page 35: Basic Air Conditioning Trouble Shooting Check List - Remote Access Control Version
BASIC AIR CONDITIONING TROUBLE SHOOTING CHECK LIST - REMOTE ACCESS CONTROL VERSION 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 36: 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 37 C-NET INDUSTRIAL LTD. | +44(0)121 544 8608 | INFO@CNET-IS.CO.UK | WWW.CNET-IS.CO.UK P/N 89115550 Rev. G 89115550...
- Page 38 +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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