Sterling A0544325 installation manual Typical SMC Wiring Schematic

Page 30

Figure 15

Typical SMC Wiring Schematic

1L1

1C1T1

Earth

ground

Remote
interlock	1L2
by others
Control
power

1L2

1L1

1L2

1L1

230V

2C

1MTR Pump

1T2

2T1

2MTR Compressor

2T2

3T1

3MTR Fan

3T2

	ON/OFF	Jumper	1FU
	1S-1LT	Jumper
	1S-1LT
	1		X1

1T

115V

		Subpanel
	2	ground
2	2
2
G 1S-1LT		"Power On"

31

	"Low Refrig		"Hi Refrig
	Pres"		Pres"
	R 3LT		R	4LT
41	1PS	51	2PS	61
41		51		61


		61		71		81		91		10
1CNTL					Jumper

		1		21		31		41		51

(+)(-)

YEL RED

Type K Thermocouple

1C		Pump
1C		starter
G	2LT	"Pump On"
2C		Condensing unit
2C		contactor
G	5LT	"Compressor On"

Legend

Customer wiring/Customer-supplied components Optional components

Page 30		SMC Series Chillers

Image 30

Contents SMC-050 to SMC-150 Series SMC Series Chillers Safety Considerations Table of Contents Table of Contents Charts and Figures Necessary Documents General InformationIntroduction Models CoveredAvailable Options Uncrating Your New ChillerEvent of Shipping Damages If the Shipment is Not CompleteIf the Shipment is Incorrect Returns SMC050A Process Pump CurvesSMC100A Process Pump Curves SMC150A Process Pump Curves SMC Series Chiller Specifications SMC-150 25,400 16,000 12A 345Chiller Installation Electrical ConnectionsProcess Water Connections SMC Condenser Air Supply Water ReservoirEthylene Glycol Curve Overhead Process Considerations Overhead PipingSequence of Operation Chilled Water CircuitRefrigeration Circuit High Pressure Cutout Low Pressure CutoutRemote Start/Stop Interlock SMC Component Identification Piping Schematic 1 Pump with Reservoir End of unit pipingPiping Schematic 1 Pump without Reservoir Piping Schematic No Pump, No Reservoir SMC Pre-Startup Checklist SMC Startup ChecklistSMC Water Circuit Pressure Drop Table Setting the Process Water Temperature Setting the Alarm ValueMicroprocessor Control SMC Control SP ALIndicator Lights SwitchesOptional Graphic Panel SMC Series Optional Graphic PanelLubrication Routine MaintenanceCondenser Maintenance Typical SMC SubpanelTypical SMC Wiring Schematic SMC Wiring Schematic for Chillers with No Pump or Reservoir SMC Series Chillers Troubleshooting Guide Problem Possible cause SolutionProblem Possible cause Solution SMC Spare Parts List DescriptionService Notes Service Notes Sterling/Sterlco Milwaukee, WI5200 West Clinton Avenue 414 Fax 414