Trane RT-SVX10C-EN specifications Coil Cleaners, Contains Refrigerant, Steam or Hot Water Coils

Page 111

CAUTION

Coil Cleaners!

Coil cleaners can damage roofs, surrounding buildings, vehicles, etc. Cleaning substances should be checked to ensure that they will not cause damage to surround- ings. Coils and roof (if applicable) should berinsed thor- oughly. Do not spray coil cleaners in windy conditions.

Refrigerant Coils

To clean refrigerant coils, use a soft brush and a sprayer (either a garden pump-up type or a high-pressure sprayer).

Ahigh-quality detergent is also required; suggested

brands include “SPREX A.C.”, “OAKITE 161”, “OAKITE 166” and “COILOX”. If the detergent selected is strongly al- kaline (pH value exceeds 8.5), add an inhibitor.

1.Remove the access panels on both sides of the unit and the filters.

WARNING

No Step Surface!

Do not walk on the sheet metal drain pan. Walking on the drain pan could cause the supporting metal to collapse. Failure of the drain pan could result in death or serious injury.

Note: Bridging between the unit's main supports may consist of multiple 2 by 12 boards or sheet metal grating.

2.Straighten any bent coil fins with a fin comb. (Use the data in Table 5-7 to determine the appropriate fin comb size.)

3.Mix the detergent with water according to the manufacturer’s instructions. If desired, heat the solution to 150 F maximum to improve its cleansing capability.

WARNING

Contains Refrigerant!

System contains oil and refrigerant under high pres- sure. Recover refrigerant to relieve pressure before opening the system. See unit nameplate for refrigerant type. Do not use non-approved refrigerants, refrigerant substitutes, or refrigerant additives.

Failure to follow proper procedures or the use of non-ap- proved refrigerants, refrigerant substitutes, or refriger- ant additives could result in death or serious injury or equipment damage.

6.Rinse both sides of the coil with cool, clean water.

7.Inspect both sides of the coil; if it still appears to be dirty, repeat Steps 7 and 8.

8.Reinstall all of the components and panels removed in Step 2; then restore power to the unit.

Service & Maintenance (Continued)

Note: Refrigerant oil is detrimental to some roofing materials. Care must be taken to protect the roof from oil leaks or spills.

4.Pour the cleaning solution into the sprayer. If a high- pressure sprayer is used:

a.Do not allow the sprayer pressure to exceed 600 psi. The minimum spray nozzle angle is 15 degrees.

b.Spray the solution perpendicular (at 90 degrees) to the coil face.

c.Maintain a minimum clearance of 6" between the sprayer nozzle and the coil.

5.Spray the leaving-airflow side of the coil first; then spray the opposite side of the coil. Allow the cleaning solution to stand on the coil for five minutes.

6.Rinse both sides of the coil with cool, clean water.

7.Inspect both sides of the coil; if it still appears to be dirty, repeat Steps 7 and 8.

8.Reinstall all of the components and panels removed in Step 2; then restore power to the unit.

Steam or Hot Water Coils

To clean a steam or hot water coil, use a soft brush, a steam-cleaning machine, and water.

1.Verify that switches 1S1 and 1S70 are turned "OFF", and that the main unit disconnect is locked open.

2.Remove enough panels and components from the unit to gain sufficient access to the coil.

3.Straighten any bent coil fins with a fin comb. (Use the data in Table 5-5 to determine the appropriate fin comb size.)

4.Remove loose dirt and debris from both sides of the coil with a soft brush.

5.Use the steam-cleaning machine to clean the leaving-air side of the coil first; start at the top of the coil and work downward; then clean the entering-air side of the coil, starting at the top of the coil and working downward.

6.Check both sides of the coil; if it still appears dirty, repeat Step 5.

7.Reinstall all of the components and panels removed in Step 2; then restore power to the unit.

109

Image 111
Contents Models Later Design SequenceWith 3-DTMScroll Compressors Overview of Manual Literature Change HistoryTable of Contents Model Number Description General InformationDigit 3 Unit Airflow Unit Description Fiberglass WoolHazard Identification General Information Commonly Used AcronymsSupply 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 Storage Unit Dimensions & Weight InformationNo Step Surface Unit Inspection As soon as the unit arrives at the job sitePage Sahf Cooling-Only Units 20 thru 75 Ton Electrical Entrance Data Unit Dimensions InstallationUnit Dimensional Data Dimensions Size Unit Base Dimensional Data DimensionsSEHF, SFHF, SLHF, SSHF, Sxhf Units 20 thru 75 Ton Unit Size Furnace Dimensions Note Size/MBH Length Height Unit Base Dimensional Data Dimensions SizeUnit Dimensions Size Electrical Entrance Data Unit Dimensions SizeSHG Cooling & Heating Units 90 through 130 Ton Sshf SahfSehf SlhfRoof Curb and Ductwork SE,SLSahf Sshf Sfhf Sxhf Sehg Sfhg Sxhg HF/G Pitch Pocket Location Installation Unit Rigging & PlacementIf a Trane Curb Accessory Kit is not used Heavy ObjectsTypical Unit Rigging Unit Base & Roof Curb Section Requirements for Electric Heat Units Main Electrical Power RequirementsInstallation Field Installed Control Wiring General Unit RequirementsInstallation Condensate Drain Connections Page Removing Supply and Exhaust Fan Shipping Channels Motors 5Hp Page Units with StatitracTM Installation Sensor & Tubing InstallationConnecting the Gas Supply Line to the Furnace Gas Train Hazardous Gases and Flammable VaporsGas Heat Units SFH 350 MBH 850 MBH Hot Water Heat Units SLH Flue Assembly InstallationFlue Assembly 1000 MBH Modulating 500 MBH 1000 MBHSSHG-90 Steam Heat Units SSHThrough 130 Ton units Page Hazardous Voltage Live Electrical ComponentsUse Copper Conductors Only Typical Field Power Wiring 20 thru 75 Ton Page FLA Supply Fan Motor FLA ea HorsepowerCondenser Fans Total FLA Exhaust Fan MotorCombustion Blower Motor Sfhf OnlyUnit Tonnage No. of Compressors Tonnage Type Designation On the Next Single Source Power 380V, 415V, 460V,Load Definitions Load = Current of the Largest Motor Compressor or FAN MotorMCA = 1.25 x Load MOP = 1.25 x Load Power Wire Sizing and Protection Device EquationsDisconnect Switch Sizing DSS Dual Source Power units 200VControls using 24 VAC Installation Controls using DC Analog Input/OutputsConstant Volume System Controls 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 OperationPropane Gas Gas Heating Sequence of OperationFenwal Ignition System Unit Start-UpModulating 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 IGV Service Test Guide for Component OperationSupply FAN If all of the fans are rotating backwards System Airflow Measurements Constant Volume SystemsRotating Components Verifying Proper Fan RotationCondenser Fan Location with Human Interface Designator Variable Air Volume Systems Optional with all units equipped with an economizer Exhaust Airflow MeasurementTraqTM Sensor Airflow Measurement Optional with all UnitsTon 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.CSTD AIRCFM RPM BHP HF-C30 000 HF-C20 000HF-C25 000 10,000AIR RPM BHP RPM BHP BHP RPM BHP RPM BHPFresh Air & Return Air Damper Operation Economizer Damper AdjustmentTo Adjust the Fresh Air Damper Travel Exhaust Air DampersTon Units Damper Travel Adjustment PositionConnecting Rod Crank Arm Hole Configuration70 & 105 Ton Fresh Air & Return Air Linkage AdjustmentCompressor Start-Up All SystemsAt Low Ambient Start-Up Compressor Operational SoundsRefrigerant Charging At ShutdownCompressor 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 Gas Furnace Start-Up Electric, Steam and Hot Water Start-UpTwo Stage Gas Furnace High-Fire AdjustmentCombustion Air Adjustment O2 Low-Fire Adjustment 500 MBH, 850 & 1,000 MBH onlyMBH Firing ManifoldCO2 Pressure Full Modulating Gas Furnace Heat ExchangerUnit control Limited Modulating Gas Furnace Unit Start-Up Modulating Gas RegulatorModulating Gas Regulator Legend Typical Gas Furnace Unit Start-Up Final Unit CheckoutService & Maintenance Unit Internal Fuse Replacement Data & VFD Factory Settings Service & MaintenanceModel Type Unit Model Box-type Note QtyQty Size of each Wet Heat Coil Fin Data Total Coil FinsService & 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 Heating Season Coil CleaningCoil 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 Equipment Damage From Ultraviolet UV Lights Warranty and Liability Clause115 116