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Summary of Contents for nvent SpectraCool G520846G Series
- Page 1 SPECTRACOOL Air Conditioner G52 460V Model INSTRUCTION MANUAL Rev. M © 2020 nVent 89101404 P/N 89101400...
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Page 2: Table Of Contents
Symptoms and Possible Causes - Remote Access Control Version ........................... 31 NOTE: Some of the information in this manual may not apply if a special unit was ordered. If additional drawings for a special unit are necessary, they have been inserted. Contact nVent Equipment Protection if further information is required. -
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: Technical Information
118 F (165 psig), the condenser fans will power on. CONTACTOR The contactor on this model uses a 230V coil. OVERLOAD Set overload reset setting to automatic “A” and trip point dial to 3.0A. © 2020 nVent 89101404 - 4 -... -
Page 5: Phase Monitor
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. © 2020 nVent 89101404 - 5 -... -
Page 6: Schematics And Wiring Diagrams For Thermostat Control
SCHEMATICS AND WIRING DIAGRAMS FOR THERMOSTAT CONTROL G52 GENERIC SCHEMATIC WITH THERMOSTATS (ACTUAL UNIT OPTIONS MAY VARY) © 2020 nVent 89101404 - 6 -... -
Page 7: G52 Generic Wire Diagram With Thermostats (Actual Unit Options May Vary)
G52 GENERIC WIRE DIAGRAM WITH THERMOSTATS (ACTUAL UNIT OPTIONS MAY VARY) © 2020 nVent 89101404 - 7 -... -
Page 8: Installation Instructions With Thermostats
Electrical circuit should be fused with slow blow or HACR circuit breaker. 7. Set controller setpoints for required cabinet temperature. Refer to Displaying and Changing Program Variables on page 13 for setpoint adjustment and operation © 2020 nVent 89101404 - 8 -... - Page 9 89061033 88015593 Surface Mount Surface Mount With Heat 88017668 Partial Recess Mount Figure 1 Cutout Dimensions © 2020 nVent 89101404 - 9 -...
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Page 10: Dimensional Drawings
DIMENSIONAL DRAWINGS 8000 BTU/HR. WITH THERMOSTATS 88045775 12000 BTU/HR. WITH THERMOSTATS 88016286 © 2020 nVent 89101404 - 10 -... -
Page 11: 8000 Btu/Hr. With Thermostats And Heat
BEHIND REMOVABLE PANEL. 1/4-20 UNC (12) MOUNTING HOLES NOTE: APPROVE TO TYPE 3R/4/12. MOUNTING GASKET SUPPLIED (NOT SHOWN). ACCESS HOLE TO .375 [9.5] O.D. DRAIN STUB 12000 BTU/HR. WITH THERMOSTATS AND HEAT 89059259 © 2020 nVent 89101404 - 11 -... -
Page 12: Remote Access Control (Optional)
Evaporator Fan On Start-up Request AMBER Not Used Not Used AMBER Not Used Not Used AMBER Heater Active Not Used Alarm Active Not Used AMBER Controller Active Not Used AMBER Not Used Not Used © 2020 nVent 89101404 - 12 -... -
Page 13: Displaying And Changing Program Variables
The Remote Access Control has a normally open dry contact alarm output with a resistive load rating of 250 VAC at 3 amps. Two yellow 18 AWG wires located at the back of the air conditioner provide a connection to this output. © 2020 nVent 89101404 - 13 -... -
Page 14: Alarm Input Connection
Read and change the state of IP addressing (static or dynamic) • Read current Alarm Status SOFTWARE AND CONFIGURATION FILE DOWNLOADS The PC Interface Tool, MIB file, EDS file, EtherNet_IP Object file and Coil_Register file can be downloaded from www.nVent.com/HOFFMAN. © 2020 nVent 89101404 - 14 -... -
Page 15: Using The Pc Interface Tool
To change to statically assigning IP Address Mode • Uncheck Use DHCP Server checkbox • Enter Device IP Address, Subnet Mask, Gateway IP Address, Trap IP Address and Community • Click Load Ethernet Info button © 2020 nVent 89101404 - 15 -... -
Page 16: Ethernet Communication Mode
Enter Device IP Address, Subnet Mask, Gateway IP Address, Trap IP Address and Community • Click Load Ethernet Info button ALARM LOG ACCESSIBLE WITH SNMP • Using custom software with the provided MIB file gives the ability to view a log of the last 25 alarms © 2020 nVent 89101404 - 16 -... -
Page 17: Remote Access Control Pin-Out
ID GND Y (na) U2 INPUTS GND (na) T1, EVAP IN THERMISTOR T2, EVAP OUT THERMISTOR T1, T2 GND CONTROLLER POWER BLK40 CONTROLLER POWER WHT41 POWER GROUND BLACK U3 DATA DIRECTION GREEN DATA WHITE © 2020 nVent 89101404 - 17 -... -
Page 18: Schematic And Wiring Diagram For Remote Access Control
SCHEMATIC AND WIRING DIAGRAM FOR REMOTE ACCESS CONTROL G52 GENERIC SCHEMATIC WITH REMOTE ACCESS CONTROL (ACTUAL UNIT OPTIONS MAY VARY) 89096036 REV C © 2020 nVent 89101404 - 18 -... -
Page 19: G52 Generic Wire Diagram With Remote Access Control (Actual Unit Options May Vary)
G52 GENERIC WIRE DIAGRAM WITH REMOTE ACCESS CONTROL (ACTUAL UNIT OPTIONS MAY VARY) 89082418 REV.J © 2020 nVent 89101404 - 19 -... -
Page 20: Dimensional Drawings
AIR OUT ENCLOSURE AIR IN ELECTRONIC CONTROLLER (INDOOR ELECTRONIC APPLICATION) CONTROLLER TABS LOCATION (OUTDOOR APPLICATION) ETHERNET AIR IN AND USB CONNECTIONS COOL AIR OUT OPTIONAL ACCESS PANEL 89083019 Rev. D ACCESS HOLE TO © 2020 nVent 89101404 - 20 -... -
Page 21: 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. © 2020 nVent 89101404... -
Page 22: 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 23: Refrigerant Properties Chart (R 134A)
2.0-2.8 8-22 15-26 70-75 2.0-2.8 8-22 17-30 G520846GXXX 75-80 2.1-2.9 8-22 18-31 80-85 2.1-2.9 8-22 19-32 65-70 2.3-3.0 9-22 22-36 70-75 2.3-3.0 9-23 23-37 G521246GXXX 75-80 2.4-3.1 9-24 24-38 80-85 2.4-3.1 10-25 24-38 © 2020 nVent 89101404 - 23 -... -
Page 24: 8000 Btu/Hr. Unit Characteristics
Rated Voltage (50/60 Hz) 400/460V 3 phase Rated Frequency 50/60 Hz Voltage Range +/- 10% of rated Cooling Amps at Max Conditions 2.4/2.8 Heating Amps Compressor RLA / LRA 1.3/13.0 Evaporator Fan RLA* Condenser Fan RLA* © 2020 nVent 89101404 - 24 -... -
Page 25: 12000 Btu/Hr. Unit Characteristics
Rated Voltage (50/60 Hz) 400/460V 3 phase Rated Frequency 50/60 Hz Voltage Range +/- 10% of rated Cooling Amps at Max Conditions 3.2/3.5 Heating Amps Compressor RLA / LRA 2.2/20.0 Evaporator Fan RLA* Condenser Fan RLA* © 2020 nVent 89101404 - 25 -... -
Page 26: Service Data
Limit Switch (manual) 10-1033-07 10-1033-07 Overload, Compressor 89098326 89098326 Relay, Phase Monitor 89117576 89117576 Thermal Expansion Valve 10-1040-42 10-1040-31 Thermal Overload, Compressor 89171728 89171728 Thermostat, SPDT, 55-100F 10-1061-16 10-1061-16 Transformer 460/230V 400VA 10-1006-128 10-1006-128 © 2020 nVent 89101404 - 26 -... -
Page 27: Components List With Remote Access Control
Limit Switch (automatic) 10-1033-01 10-1033-01 Limit Switch (manual) 10-1033-07 10-1033-07 Relay, Phase Monitor 89117576 89117576 Thermal Expansion Valve 10-1040-42 10-1040-31 Thermal Overload, Compressor 89171728 89171728 Transformer 460/230V 400VA 10-1006-128 10-1006-128 Circuit Breaker Control 10-1060-69 10-1060-69 © 2020 nVent 89101404 - 27 -... -
Page 28: Trouble Shooting
Is the compressor showing signs of this? YES, wait 5 minutes, then proceed to step 8. NO, possible problem: » Defective thermostat Repair or Replace » Defective overload defective part » Defective relay © 2020 nVent 89101404 - 28 -... -
Page 29: 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. © 2020 nVent 89101404 - 29 -... -
Page 30: Basic Air Conditioning Trouble Shooting Check List - Remote Access Control Version
Restart Time Delay mode. Within 6 minutes, symbol 1 should display without flashing. Is symbol 1 displayed without flashing? YES, proceed to step 7. NO, possible problem: » Unit still in Recycle Time Delay mode » Enclosure temperature below cooling Wait and/or heat enclosure thermistor T1 setpoint temperature © 2020 nVent 89101404 - 30 -... -
Page 31: 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. © 2020 nVent 89101404 - 31 -... - Page 32 Rev. M © 2020 nVent 89101404 P/N 89101400...
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