Trane RT-SVX10C-EN specifications General Information Space Temperature Averaging

Page 12

General Information (Continued)

Space Temperature Averaging

Space Temperature Averaging with Multiple Sensors

Space temperature averaging for Constant Volume applica- tions is accomplished by wiring a number of remote sensors in a series/parallel circuit.

The fewest number of sensors required to accomplish space temperature averaging is four. Figure 8 illustrates a single sensor circuit (Single Zone), four sensors wired in a series/parallel circuit (Four Zone), nine sensors wired in a series/parallel circuit (Nine Zone). Any number squared, is the number of remote sensors required.

Wiring termination will depend on the type of remote panel or control configuration for the system. Refer to the wiring diagrams that shipped with the unit.

Unit Control Modules (UCM)Control Module Locations for S_HF 30 Ton Units

Unit control modules are microelectronic circuit boards de- signed to perform specific unit functions. These modules through Proportional/Integral control algorithms provide the best possible comfort level for the customer. They are mounted in the control panel and are factory wired to their respective internal components. They receive and interpret

1TB9

ECEM 1U52

J1-1

J2-1

RTM 1U48

J1-1

J2-1

Bracket

information from other unit modules, sensors, remote pan- els, and customer binary contacts to satisfy the applicable request for economizing, mechanical cooling, heating, and ventilation. Figure 9 below illustrates the typical location of

1PCB MOD

1U55

J2-1

J2-1

Heat MOD 1U50

J1-1

Bracket

SCM 1U49

Bracket

J1-1

each "1U" designated module.

J1-1

Mounting

Plate

Bracket

Bracket

J2-1

Control Module Locations for S_HF 20 & 25 Ton Units

	GBAS MOD
TCI MOD	1U51

		1U54	OR		Mounting J2-1
		1U54	LCI MOD		Mounting J2-1
	SCM		LCI MOD		Plate	J1-1
			1U54			J1-1
Bracket	1U49		1U54	VOM
	1U49			1U53		Bracket
				1U53		Bracket
	J2-1			J1-1

Bracket

J2-1

J2-1

Heat MOD 1U50

Mounting

Plate

Bracket

J1-1

RTM

J2-11U48

J1-1

J1-1

1TB9

TCI MOD			Bracket	Bracket
1U54			Bracket	Bracket
1U54
OR		ECEM
LCI MOD		ECEM
LCI MOD		1U52
1U54		1U52
1U54		J1-1
		J1-1
1PCB MOD
1U55			J2-1
J2-1			GBAS MOD
			1U51
		Mounting J1-1
J1-1		Plate		Bracket
				Bracket
		VOM
		1U53		J2-1
	J2-1

	J1-1	Mounting
	J1-1	Plate
		Plate

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Contents Models Later Design SequenceWith 3-DTMScroll Compressors Literature Change History Overview of ManualTable of Contents General Information Model Number DescriptionDigit 3 Unit Airflow Fiberglass Wool Hazard IdentificationGeneral Information Commonly Used Acronyms Unit DescriptionGeneral Information Supply AIRVentilation Control Module VCM Design special option only CFMLead-Lag Constant Volume CV Units Variable Air Volume VAV Units Unit Component Layout and Shipwith LocationsGeneral Information Space Temperature Averaging Control Module Locations for SHF 40, 60, 70 & 75 Ton Units Table of Contents Unit Dimensions & Weight Information No Step SurfaceUnit Inspection As soon as the unit arrives at the job site StoragePage Sahf Cooling-Only Units 20 thru 75 Ton Installation Unit Dimensional Data Dimensions SizeUnit Base Dimensional Data Dimensions Electrical Entrance Data Unit DimensionsSEHF, SFHF, SLHF, SSHF, Sxhf Units 20 thru 75 Ton Unit Base Dimensional Data Dimensions Size Unit Dimensions SizeElectrical Entrance Data Unit Dimensions Size Unit Size Furnace Dimensions Note Size/MBH Length HeightSHG Cooling & Heating Units 90 through 130 Ton Sahf SehfSlhf SshfRoof Curb and Ductwork SE,SLSahf Sshf Sfhf Sxhf Sehg Sfhg Sxhg HF/G Installation Unit Rigging & Placement If a Trane Curb Accessory Kit is not usedHeavy Objects Pitch Pocket LocationTypical Unit Rigging Unit Base & Roof Curb Section Main Electrical Power Requirements Installation Field Installed Control WiringGeneral Unit Requirements Requirements for Electric Heat UnitsInstallation Condensate Drain Connections Page Removing Supply and Exhaust Fan Shipping Channels Motors 5Hp Page Installation Sensor & Tubing Installation Units with StatitracTMConnecting the Gas Supply Line to the Furnace Gas Train Hazardous Gases and Flammable VaporsGas Heat Units SFH 350 MBH 850 MBH Flue Assembly Installation Flue Assembly1000 MBH Modulating 500 MBH 1000 MBH Hot Water Heat Units SLHSteam Heat Units SSH SSHG-90Through 130 Ton units Page Hazardous Voltage Live Electrical ComponentsUse Copper Conductors Only Typical Field Power Wiring 20 thru 75 Ton Page Supply Fan Motor FLA ea Horsepower Condenser Fans Total FLAExhaust Fan Motor FLACombustion Blower Motor Sfhf OnlyUnit Tonnage No. of Compressors Tonnage Type Designation Single Source Power 380V, 415V, 460V, Load Definitions Load= Current of the Largest Motor Compressor or FAN Motor On the NextPower Wire Sizing and Protection Device Equations Disconnect Switch Sizing DSSDual Source Power units 200V MCA = 1.25 x Load MOP = 1.25 x LoadControls using 24 VAC Installation Controls using DC Analog Input/OutputsConstant Volume System Controls Variable Air Volume System Controls Constant Volume or Variable Air Volume System ControlsPressurize DepressurizePurge FireRefer to Wiring Notes on 16A16B Page 17A 17B VAV Setpoint Input VoltageTable of Contents Cooling Sequence of Operation Sequence of OperationGas Heating Sequence of Operation Fenwal Ignition SystemUnit Start-Up Propane GasModulating Gas Sequence of Operation Flame FailureFull and Limited Modulating Gas Furnace Electric Heat Sequence of Operation Unit Start-Up Wet Heat Sequence of OperationFreeze Protection Unit Power Compressor DamageElectrical Phasing Voltage Supply and Voltage Imbalance Voltage SupplyVoltage Imbalance Service Test Guide for Component Operation IGVSupply FAN System Airflow Measurements Constant Volume Systems Rotating ComponentsVerifying Proper Fan Rotation If all of the fans are rotating backwardsCondenser Fan Location with Human Interface Designator Variable Air Volume Systems Exhaust Airflow Measurement TraqTM Sensor Airflow MeasurementOptional with all Units Optional with all units equipped with an economizer20 & 25 Ton Supply Fan Performance without Inlet Guide Vanes Ton Supply Fan Performance without Inlet Guide VanesWocfm 1200 RPM 40 HP 40% 300 RP Standard Evaporator Coil 20000 30000 40000 50000 60000 Drop 20 & 25 Ton Supply Fan Performance with Inlet Guide Vanes Ton Supply Fan Performance with Inlet Guide Vanes15 HP 900 RPM 80% 10 HP RPM Through 75 Ton Component Static Pressure Drops Inches W.C AIRSTD AIRCFM RPM BHP HF-C20 000 HF-C25 00010,000 HF-C30 000RPM BHP BHP RPM BHP RPM BHP AIR RPM BHPEconomizer Damper Adjustment To Adjust the Fresh Air Damper TravelExhaust Air Dampers Fresh Air & Return Air Damper OperationDamper Travel Adjustment Position Connecting Rod Crank Arm HoleConfiguration Ton UnitsFresh Air & Return Air Linkage Adjustment Compressor Start-UpAll Systems 70 & 105 TonCompressor Operational Sounds Refrigerant ChargingAt Shutdown At Low Ambient Start-UpCompressor Locations Cooling Cycle Pressure Curve 340 320 Full Load 380 360 340 OD Ambient Full Load 380 360 340 OD Ambient 320 240 220 380 360 OD Ambient Thermostatic Expansion Valves Charging by SubcoolingLow Ambient Dampers Electric, Steam and Hot Water Start-Up Gas Furnace Start-UpHigh-Fire Adjustment Combustion Air Adjustment O2Low-Fire Adjustment 500 MBH, 850 & 1,000 MBH only Two Stage Gas FurnaceMBH Firing ManifoldCO2 Pressure Full Modulating Gas Furnace Heat ExchangerUnit control Limited Modulating Gas Furnace Unit Start-Up Modulating Gas RegulatorModulating Gas Regulator Legend Unit Start-Up Final Unit Checkout Typical Gas FurnaceService & Maintenance Service & Maintenance Unit Internal Fuse Replacement Data & VFD Factory SettingsUnit Model Box-type Note Qty Qty Size of eachWet Heat Coil Fin Data Total Coil Fins Model TypeService & Maintenance Fan Belt Adjustment Scroll Compressor Replacement Suction Line Filter/Drier InstallationGripbelts Gripnotch Cross Small P.D Section Range Min Max Hazardous Voltage! w/Capacitors VFD Programming ParametersSupply and Exhaust Fan VFD Programming Parameters Service & Maintenance Monthly Maintenance FiltersCooling Season Coil Cleaning Heating SeasonCoil Cleaners Contains RefrigerantSteam or Hot Water Coils Final Process Index See Figure Gate type valve 36-37 See -12 Figure See VOM Contacts -16 Figure Warranty and Liability Clause Equipment Damage From Ultraviolet UV Lights115 116