Trane RT-SVX10C-EN specifications Service & Maintenance

Page 102

Service & Maintenance

Table 5-1

Control Settings and Time Delays

Control Description

Elec. Designation

Contacts Open

Contacts Closed

 

 

 

 

Compressor Circuit Breakers

 

 

 

S*HF 20 - 60

1CB8 thru 1CB11

See Table 5-2

See Table 5-2

S*HG 90 - 130

1CB14 thru 1CB17

See Table 5-2

See Table 5-2

Combustion Airflow Switch

 

 

 

(Gas Heat Only)

4S25

see note 1

0.1 - 0.25" wc rise in press diff

High Limit Cutout

 

 

 

(Gas Heat Only)

4S26

250 + 15 F

210 F

Supply Airflow Switch

 

 

 

(Gas Heat Only)

4S38

0.03 - 0.12" wc

0.15 + 0.05" wc rise in press diff

Disch High Limit

 

 

 

(Electric Heat Only)

4S27

133 + 5 F

110 + 5 F

Linear High Limit

 

 

 

(Electric Heat Only)

4S33

185 + 10 F (std./UL)

145 F (std./UL)

 

 

165 F + 10 F (CSA)

125 F (CSA)

Freezestat

 

 

 

(Hydronic Heat Only)

4S12

(N.O.) Auto Reset

40 F

Gas Heat Units

 

 

 

Prepurge Timer: Fenwall

4DL5

N.C. - timed to close

60 seconds

Honeywell

4U18

internal timing function

60 seconds

Sequencing Time Delay Relay

4DL6

N.C. - timed to close

60 seconds + 20%

Notes:

 

 

 

1. The combustion airflow switch (4S25) differential is 0.02" - 0.08" wc.

Table 5-2

Compressor Circuit Breakers (1CB8 - 1CB11 & 1CB14 - 1CB17) Electrical Characteristics

 

 

 

 

200V

230V

 

460V

 

 

575V

Unit

Compr.

Compr.

Must

Must

Must

Must

Must

Must

Must

Must

Size

Desig.

Size

Hold

Trip

Hold

Trip

Hold

Trip

Hold

Trip

20

A & B

9 ton

51

58.7

51

58.7

22.2

25.5

17.7

20.4

25

B

14 ton

76

87.4

76

87.4

33

38

26.4

30.4

 

A

9 ton

51

58.7

51

58.7

22.2

25.5

17.7

20.4

30

A & B

14 ton

76

87.4

76

87.4

33

38

26.4

30.4

40

1,2A & 1,2B

9 ton

51

58.7

51

58.7

22.2

25.5

17.7

20.4

50

1B, 2B

14 ton

76

87.4

76

87.4

33

38

26.4

30.4

 

1A, 2A

9 ton

51

58.7

51

58.7

22.2

25.5

17.7

20.4

55

1,2A & 1,2B

14 ton

76

87.4

76

87.4

33

38

26.4

30.4

60

1,2A & 1,2B

14 ton

76

87.4

76

87.4

33

38

26.4

30.4

70

1,2C

14 ton

76

87.4

76

87.4

33

38

26.4

30.4

 

1,2A & 1,2B

9 ton

51

58.7

51

58.7

22.2

25.5

17.7

20.4

75 Std.

1,2C

14 ton

76

87.4

76

87.4

33

38

26.4

30.4

 

1,2A & 1,2B

9 ton

51

58.7

51

58.7

22.2

25.5

17.7

20.4

75

1,2C

15 ton

76

87.4

76

87.4

33

38

26.4

30.4

Hi-Cap

1,2A & 1,2B

10 ton

51

58.7

51

58.7

22.2

25.5

17.7

20.4

90

1,2B & 1,2C

15 ton

76

87.4

76

87.4

33

38

26.4

30.4

 

1,2A

10 ton

51

58.7

51

58.7

22.2

25.5

17.7

20.4

105

1A,1B & 1C

15 ton

76

87.4

76

87.4

33

38

26.4

30.4

 

2A,2B & 2C

 

 

 

 

 

 

 

 

 

115

1,2C & 1,2D

15 ton

76

87.4

76

87.4

33

38

26.4

30.4

 

1,2A & 1,2B

10 ton

51

58.7

51

58.7

22.2

25.5

17.7

20.4

130

1,2C & 1,2D

14 ton

76

87.4

76

87.4

33

38

26.4

30.4

 

1,2A & 1,2B

 

 

 

 

 

 

 

 

 

100

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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 General Information Commonly Used Acronyms Fiberglass WoolHazard Identification 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 Inspection As soon as the unit arrives at the job site Unit Dimensions & Weight InformationNo Step Surface StoragePage Sahf Cooling-Only Units 20 thru 75 Ton Unit Base Dimensional Data Dimensions InstallationUnit Dimensional Data Dimensions Size Electrical Entrance Data Unit DimensionsSEHF, SFHF, SLHF, SSHF, Sxhf Units 20 thru 75 Ton Electrical Entrance Data Unit Dimensions Size Unit Base Dimensional Data Dimensions SizeUnit Dimensions Size Unit Size Furnace Dimensions Note Size/MBH Length HeightSHG Cooling & Heating Units 90 through 130 Ton Slhf SahfSehf SshfRoof Curb and Ductwork SE,SLSahf Sshf Sfhf Sxhf Sehg Sfhg Sxhg HF/G Heavy Objects Installation Unit Rigging & PlacementIf a Trane Curb Accessory Kit is not used Pitch Pocket LocationTypical Unit Rigging Unit Base & Roof Curb Section General Unit Requirements Main Electrical Power RequirementsInstallation Field Installed Control Wiring 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 1000 MBH Modulating 500 MBH 1000 MBH Flue Assembly InstallationFlue Assembly 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 Exhaust Fan Motor Supply Fan Motor FLA ea HorsepowerCondenser Fans Total FLA FLACombustion Blower Motor Sfhf OnlyUnit Tonnage No. of Compressors Tonnage Type Designation = Current of the Largest Motor Compressor or FAN Motor Single Source Power 380V, 415V, 460V,Load Definitions Load On the NextDual Source Power units 200V Power Wire Sizing and Protection Device EquationsDisconnect Switch Sizing DSS 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 OperationUnit Start-Up Gas Heating Sequence of OperationFenwal Ignition System 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 Verifying Proper Fan Rotation System Airflow Measurements Constant Volume SystemsRotating Components If all of the fans are rotating backwardsCondenser Fan Location with Human Interface Designator Variable Air Volume Systems Optional with all Units Exhaust Airflow MeasurementTraqTM Sensor Airflow Measurement 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 10,000 HF-C20 000HF-C25 000 HF-C30 000RPM BHP BHP RPM BHP RPM BHP AIR RPM BHPExhaust Air Dampers Economizer Damper AdjustmentTo Adjust the Fresh Air Damper Travel Fresh Air & Return Air Damper OperationConfiguration Damper Travel Adjustment PositionConnecting Rod Crank Arm Hole Ton UnitsAll Systems Fresh Air & Return Air Linkage AdjustmentCompressor Start-Up 70 & 105 TonAt Shutdown Compressor Operational SoundsRefrigerant Charging 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-UpLow-Fire Adjustment 500 MBH, 850 & 1,000 MBH only High-Fire AdjustmentCombustion Air Adjustment O2 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 SettingsWet Heat Coil Fin Data Total Coil Fins Unit Model Box-type Note QtyQty Size of each 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
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