Trane RT-SVX10C-EN specifications Full Load

Page 89

Table 4-6 (Continued)

50 Ton Operating Pressure Curve (All Compressors and Condenser Fans, per ckt; "On")

 

 

 

 

COOLING CYCLE PRESSURE CURVE

 

 

 

 

 

 

 

 

(Based on Indoor Airflow of 400 CFM / Ton)

 

 

 

 

 

 

 

 

FULL LOAD

 

 

 

 

 

 

380

 

 

 

 

 

 

 

 

 

 

 

360

 

 

 

 

 

 

 

 

 

 

PSIG

340

 

 

 

 

 

 

 

105 F OD Ambient

 

320

 

 

 

 

 

 

 

 

 

 

PRESSURE,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

95 F OD Ambient

 

 

 

 

 

 

 

 

 

 

 

 

300

 

 

 

 

 

 

 

 

 

 

DISCHARGE

280

 

 

 

 

 

 

 

85 F OD Ambient

 

260

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

240

 

 

 

 

 

 

 

75 F OD Ambient

 

 

 

 

 

 

 

 

 

 

 

 

 

220

 

 

 

 

 

 

 

65 F OD Ambient

 

 

200

 

 

 

 

 

 

 

 

 

 

 

180

 

 

 

 

 

 

 

 

 

 

 

50

55

60

65

70

75

80

85

90

95

100

 

 

 

 

 

SUCTION PRESSURE, PSIG

 

 

 

 

To Check Operating Pressures

1.Start the unit and allow the pressures to stabilize.

2.Measure the outdoor air dry bulb temperature (F) entering the condenser coil.

3.Measure the discharge and suction pressure (psig) next to the compressor.

4.Plot the outdoor dry bulb temperature and the operating suction pressure (psig) onto the chart.

5.At the point of intersection, read to the left for the discharge pressure. The measured discharge pressure should be within ± 7 psig of the graph.

55 Ton Operating Pressure Curve (All Compressors and Condenser Fans, per ckt, "On")

55 Ton Operating Pressure Curve (All Compressors and Condenser Fans, per ckt, "On")

 

 

 

 

Cooling Cycle Pressure Curve

 

 

 

 

 

 

 

 

 

(Based on Indoor Airfow of 400 CFM / Ton)

 

 

 

 

 

 

 

 

 

Full Load

 

 

 

 

 

 

 

360

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

105 F OD Ambient

 

 

 

340

 

 

 

 

 

 

 

 

 

 

 

320

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

95 F OD Ambient

 

 

 

300

 

 

 

 

 

 

 

 

 

 

PSIG

280

 

 

 

 

 

 

85 F OD Ambient

 

 

Pressure,

 

 

 

 

 

 

 

 

260

 

 

 

 

 

 

 

 

 

 

Discharge

 

 

 

 

 

 

 

75 F OD Ambient

 

 

 

 

 

 

 

 

 

 

 

 

 

240

 

 

 

 

 

 

 

 

 

 

 

220

 

 

 

 

 

 

65 F OD Ambient

 

 

 

 

 

 

 

 

 

 

 

 

 

 

200

 

 

 

 

 

 

 

 

 

 

 

180

 

 

 

 

 

 

 

 

 

 

 

50

55

60

65

70

75

80

85

90

95

100

 

 

 

 

 

Suction Pressure, PSIG

 

 

 

 

87

Image 89
Contents With 3-DTMScroll Compressors ModelsLater Design Sequence Overview of Manual Literature Change HistoryTable of Contents Model Number Description General InformationDigit 3 Unit Airflow Hazard Identification Fiberglass WoolGeneral Information Commonly Used Acronyms Unit DescriptionSupply AIR General InformationCFM Ventilation Control Module VCM Design special option onlyLead-Lag Constant Volume CV Units Unit Component Layout and Shipwith Locations Variable Air Volume VAV UnitsGeneral Information Space Temperature Averaging Control Module Locations for SHF 40, 60, 70 & 75 Ton Units Table of Contents No Step Surface Unit Dimensions & Weight InformationUnit Inspection As soon as the unit arrives at the job site StoragePage Sahf Cooling-Only Units 20 thru 75 Ton Unit Dimensional Data Dimensions Size InstallationUnit Base Dimensional Data Dimensions Electrical Entrance Data Unit DimensionsSEHF, SFHF, SLHF, SSHF, Sxhf Units 20 thru 75 Ton Unit Dimensions Size Unit Base Dimensional Data Dimensions SizeElectrical Entrance Data Unit Dimensions Size Unit Size Furnace Dimensions Note Size/MBH Length HeightSHG Cooling & Heating Units 90 through 130 Ton Sehf SahfSlhf SshfSahf Sshf Sfhf Sxhf Sehg Sfhg Sxhg HF/G Roof Curb and DuctworkSE,SL If a Trane Curb Accessory Kit is not used Installation Unit Rigging & PlacementHeavy Objects Pitch Pocket LocationTypical Unit Rigging Unit Base & Roof Curb Section Installation Field Installed Control Wiring Main Electrical Power RequirementsGeneral Unit Requirements Requirements for Electric Heat UnitsInstallation Condensate Drain Connections Page Removing Supply and Exhaust Fan Shipping Channels Motors 5Hp Page Units with StatitracTM Installation Sensor & Tubing InstallationGas Heat Units SFH Connecting the Gas Supply Line to the Furnace Gas TrainHazardous Gases and Flammable Vapors 350 MBH 850 MBH Flue Assembly Flue Assembly Installation1000 MBH Modulating 500 MBH 1000 MBH Hot Water Heat Units SLHSSHG-90 Steam Heat Units SSHThrough 130 Ton units Page Use Copper Conductors Only Hazardous VoltageLive Electrical Components Typical Field Power Wiring 20 thru 75 Ton Page Condenser Fans Total FLA Supply Fan Motor FLA ea HorsepowerExhaust Fan Motor FLAUnit Tonnage No. of Compressors Tonnage Type Designation CombustionBlower Motor Sfhf Only Load Definitions Load Single Source Power 380V, 415V, 460V,= Current of the Largest Motor Compressor or FAN Motor On the NextDisconnect Switch Sizing DSS Power Wire Sizing and Protection Device EquationsDual Source Power units 200V MCA = 1.25 x Load MOP = 1.25 x LoadConstant Volume System Controls Controls using 24 VACInstallation Controls using DC Analog Input/Outputs Constant Volume or Variable Air Volume System Controls Variable Air Volume System ControlsDepressurize PressurizeFire Purge16A Refer to Wiring Notes on16B Page 17A 17B Input Voltage VAV SetpointTable of Contents Sequence of Operation Cooling Sequence of OperationFenwal Ignition System Gas Heating Sequence of OperationUnit Start-Up Propane GasFull and Limited Modulating Gas Furnace Modulating Gas Sequence of OperationFlame Failure Freeze Protection Electric Heat Sequence of OperationUnit Start-Up Wet Heat Sequence of Operation Electrical Phasing Unit PowerCompressor Damage Voltage Imbalance Voltage Supply and Voltage ImbalanceVoltage Supply IGV Service Test Guide for Component OperationSupply FAN Rotating Components System Airflow Measurements Constant Volume SystemsVerifying Proper Fan Rotation If all of the fans are rotating backwardsCondenser Fan Location with Human Interface Designator Variable Air Volume Systems TraqTM Sensor Airflow Measurement Exhaust Airflow MeasurementOptional with all Units Optional with all units equipped with an economizerTon Supply Fan Performance without Inlet Guide Vanes 20 & 25 Ton Supply Fan Performance without Inlet Guide VanesWocfm 1200 RPM 40 HP 40% 300 RP Standard Evaporator Coil 20000 30000 40000 50000 60000 Drop Ton Supply Fan Performance with Inlet Guide Vanes 20 & 25 Ton Supply Fan Performance with Inlet Guide Vanes15 HP 900 RPM 80% 10 HP RPM AIR Through 75 Ton Component Static Pressure Drops Inches W.CCFM RPM BHP STDAIR HF-C25 000 HF-C20 00010,000 HF-C30 000AIR RPM BHP RPM BHP BHP RPM BHP RPM BHPTo Adjust the Fresh Air Damper Travel Economizer Damper AdjustmentExhaust Air Dampers Fresh Air & Return Air Damper OperationConnecting Rod Crank Arm Hole Damper Travel Adjustment PositionConfiguration Ton UnitsCompressor Start-Up Fresh Air & Return Air Linkage AdjustmentAll Systems 70 & 105 TonRefrigerant Charging Compressor Operational SoundsAt 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 Low Ambient Dampers Thermostatic Expansion ValvesCharging by Subcooling Gas Furnace Start-Up Electric, Steam and Hot Water Start-UpCombustion Air Adjustment O2 High-Fire AdjustmentLow-Fire Adjustment 500 MBH, 850 & 1,000 MBH only Two Stage Gas FurnaceCO2 Pressure MBHFiring Manifold Unit control Full Modulating Gas FurnaceHeat Exchanger Modulating Gas Regulator Legend Limited Modulating Gas Furnace Unit Start-UpModulating Gas Regulator Typical Gas Furnace Unit Start-Up Final Unit CheckoutService & Maintenance Unit Internal Fuse Replacement Data & VFD Factory Settings Service & MaintenanceQty Size of each Unit Model Box-type Note QtyWet Heat Coil Fin Data Total Coil Fins Model TypeService & Maintenance Fan Belt Adjustment Gripbelts Gripnotch Cross Small P.D Section Range Min Max Scroll Compressor ReplacementSuction Line Filter/Drier Installation Supply and Exhaust Fan VFD Programming Parameters Hazardous Voltage! w/CapacitorsVFD Programming Parameters Cooling Season Service & Maintenance Monthly MaintenanceFilters Heating Season Coil CleaningSteam or Hot Water Coils Coil CleanersContains Refrigerant Final Process Index See Figure Gate type valve 36-37 See -12 Figure See VOM Contacts -16 Figure Equipment Damage From Ultraviolet UV Lights Warranty and Liability Clause115 116