wiring diagramsdms.hvacpartners.com/docs/1005/public/07/30gxn-2w.… · · 2013-12-18wiring...

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 903 Catalog No. 533-00040 Printed in U.S.A. Form 30GXN-2W Pg 1 3-02 Replaces: 30GXN-1WBook 2

Tab 5c

Wiring DiagramsDIAGRAM INDEX

LEGEND

*And associated modular units. Refer to Table 1 for Duplex unit size combinations.NOTE: For operating sequence, refer to Controls, Start-Up, Operation, Service, and Troubleshooting literature.

POWER SCHEMATICS

Unit 30GXN,R Voltage Figure Number Label DiagramNo. 30GX

080-178* ALL 1 505429204-350* XL START ALL 2 505436204-350* YD START ALL 3 505435

CONTROL SCHEMATICS


080-350* 24 4505423505431

080-178* STD FAN 115, 230 5

505430505433

080-178* HIGH STATIC FAN 115, 230 6

505432505434

204-350* STD FAN 115, 230 7505437505439

204-350* HIGH STATIC FAN 115, 230 8

505438505440

FAN POWER


080-178* ALL 9 505422204-350* STD FAN ALL 10 505425

204-350* HIGH STATIC FAN ALL 11 505427

COMPONENT ARRANGEMENTS


080-178* ALL 12 505424204-350* ALL 13 505426

XL — Across-the-Line StartYD — Wye-Delta

30GXN,RSizes 080-528

Air-Cooled Chillers with ComfortLink™ Controls50/60 Hz

2

Table 1 — 30GXN,R Duplex Combinations

SIZE MODULE A MODULE B220 (50 Hz only) 125 090240 (50 Hz only) 125 115275 (50 Hz only) 135 135283 (60 Hz & 50 Hz) 153 138300 (50 Hz only) 160 135303 (60 Hz & 50 Hz) 163 138320 (50 Hz only) 160 160328 (60 Hz & 50 Hz) 178 153345 (50 Hz only) 175 175353 (60 Hz & 50 Hz) 178 178365 (50 Hz only) 250 135370 (60 Hz only) 225 150373 (60 Hz & 50 Hz) 253 138390 (60 Hz only) 264 135393 (60 Hz & 50 Hz) 253 153395 (50 Hz only) 264 135410 (50 Hz only) 225 205415 (60 Hz only) 264 160418 (60 Hz & 50 Hz) 268 153440 (50 Hz only) 225 225450 (60 Hz only) 225 225453 (60 Hz & 50 Hz) 228 228470 (50 Hz only) 250 225475 (60 Hz only) 249 225478 (60 Hz & 50 Hz) 253 228495 (50 Hz only) 250 250500 (60 Hz only) 249 249503 (60 Hz & 50 Hz) 253 253520 (50 Hz only) 264 264525 (60 Hz only) 264 264528 (60 Hz & 50 Hz) 268 268

3

LEGEND

NOTES1. Replacement of original wires must be with type 105° C wire or its

equivalent.2. Factory wiring is in accordance with National Electrical Compliance

(NEC) U.S.A. Field modifications or additions must be in compliancewith all applicable codes.

3. Wiring for main field power supply must be rated 75° C minimum.Use copper conductors for all units. Maximum incoming wire size foreach terminal block is 500 kcmil.

4. Power for control circuit should be supplied from a separate sourcethrough a field-supplied disconnect with 30-amp maximum protection(50-amp maximum with cooler heaters) for 115-volt control circuit and15-amp maximum protection (25-amp maximum with cooler heaters)for 230-volt control circuit. Connect control circuit power to terminals1 and 2 of TB4. Connect neutral side of supply to terminal 2 of TB4.Control power wiring for 380-3-60 and 380/415-3-50 units is factoryinstalled, but requires field-installed neutral connection. If separatepower supply is required, disconnect the wires between the controland terminal blocks. Control circuit conductors for all units must becopper only.

ALM — AlarmC — Contactor, CompressorCB — Circuit BreakerCCP — ComfortLink™ Compressor ProtectionCH — Cooler HeaterCHC — Cooler HeaterCLHR — Cooler Heater RelayCOMP — CompressorCR — Control RelayCWFS — Chilled Water Flow SwitchCWP — Chilled Water PumpCWPI — Chilled Water Pump InterlockDGT — Discharge Gas ThermistorDPT — Discharge Pressure TransducerECON — EconomizerEMM — Energy Management ModuleEPT — Economizer Pressure TransducerEQUIP — EquipmentEXV — Expansion Valve BoardFC — Fan ContactorFCB — Fan Circuit BreakerFIOP — Factory-Installed OptionFM — Fan MotorFR — Fan RelayFSR — Flow Switch RelayFU — FuseGFI-CO — Ground Fault Interrupter

Convenience OutletGND — GroundHPS — High-Pressure SwitchHTR — HeaterLD — LoaderLL — Liquid LevelLLSV — Liquid Line Solenoid ValveLR — Loader RelayLS — Level SwitchMBB — Main Base BoardMLC — Minimum Load ControlMLV — Minimum Load Valve

MM-F — Motormaster® FuseNEC — National Electric CodeOAT — Outdoor Air Temperature SensorOL — OverloadOP — Oil PumpOPC — Oil Pump ContactorOPT — Oil Pressure TransducerPL — Plug AssemblyPRI — PrimaryS — Wye Start ContactorSCB — Screw Compressor BoardSN — Sensor (Toroid)SPT — Suction Pressure TransducerSW — SwitchSW2 — Emergency On/OffT — ThermistorTB — Terminal BlockTEMP — TemperatureTRAN — TransformerXL — Across The Line Start1M — Comp. Contactor (Wye Delta)2M — Comp. Contactor (Delta)

Terminal Block Connection

Marked Terminal

Unmarked Terminal

Unmarked Splice

Marked Wire

Marked SpliceFactory WiringField Control WiringField Power WiringIndicates Common PotentialDoes Not Represent WiringAccessories or Options

4

Fig. 1 — Power Schematic — 30GXN,R080-178 and Associated Modular Sizes

5

Fig. 1 — Power Schematic — 30GXN,R080-178 and Associated Modular Sizes (cont)

6

Fig. 2 — Power Schematic — 30GXN,R204-350 and Associated Modular Units, XL Start

7

Fig. 2 — Power Schematic — 30GXN,R204-350 and Associated Modular Units, XL Start (cont)

8

Fig. 3 — Power Schematic — 30GXN,R204-350 and Associated Modular Units, Wye-Delta Start

9

Fig. 3 — Power Schematic — 30GXN,R204-350 and Associated Modular Units, Wye-Delta Start (cont)

10

Fig. 4 — Control Schematic — 30GXN,R080-350 and Associated Modular Units, 24 V

11

Fig. 4 — Control Schematic — 30GXN,R080-350 and Associated Modular Units, 24 V (cont)

12


COMFORTLINK LOW VOLTAGE (24V) CONTROL SCHEMATIC

30GX080-350

13


14

EMERGENCYOFF

Fig. 5 — Control Schematic — 30GXN,R080-178 and Associated Modular Units, Standard Fan (115, 230 V)

15

Fig. 5 — Control Schematic — 30GXN,R080-178 and Associated Modular Units, Standard Fan (115, 230 V) (cont)

16


30GX080-178(115 OR 230V) CONTROL SCHEMATIC

STANDARD FAN

17


18

EMERGENCYOFF

Fig. 6 — Control Schematic — 30GXN,R080-178 and Associated Modular Units, High Static Fan (115, 230 V)

COMFORTLINK(115 OR 230V) CONTROL SCHEMATIC

HIGH STATIC FAN OPTION30GX080-178

19

Fig. 6 — Control Schematic — 30GXN,R080-178 and Associated Modular Units, High Static Fan (115, 230 V) (cont)

20


30GX080-178(115 OR 230V) CONTROL SCHEMATIC

HIGH STATIC FAN

21


22

Fig. 7 — Control Schematic — 30GXN,R204-350 and Associated Modular Units, Standard Fan

23

Fig. 7 — Control Schematic — 30GXN,R204-350 and Associated Modular Units, Standard Fan (cont)

24


25


26

Fig. 8 — Control Schematic — 30GXN,R204-350 and Associated Modular Units, High Static Fan

COMFORTLINK(115 OR 230V) CONTROL SCHEMATIC

HIGH STATIC FAN OPTION30GX204-350

27

Fig. 8 — Control Schematic — 30GXN,R204-350 and Associated Modular Units, High Static Fan (cont)

28


29


30

Fig. 9 — Fan Power — 30GXN,R080-178 and Associated Modular Units

31

HIGH STATIC FAN OPTION

Fig. 9 — Fan Power — 30GXN,R080-178 and Associated Modular Units (cont)

32

Fig. 10 — Fan Power — 30GXN,R204-350 and Associated Modular Units, Standard Fan

33

Fig. 10 — Fan Power — 30GXN,R204-350 and Associated Modular Units, Standard Fan (cont)

34

HIGH STATIC FAN OPTION

Fig. 11 — Fan Power — 30GXN,R204-350 and Associated Modular Units, High Static Fan

35

Fig. 11 — Fan Power — 30GXN,R204-350 and Associated Modular Units, High Static Fan (cont)

36

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Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 903 Catalog No. 533-00040 Printed in U.S.A. Form 30GXN-2W Pg 40 3-02 Replaces: 30GXN-1WBook 2

Tab 5c

Copyright 2002 Carrier Corporation

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