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Trane Climate Changer M Series Installation Operation & Maintenance

Air handlers unit sizes 3 to 120
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Installation Operation
Maintenance
M-Series Climate Changer™
Air Handlers
Unit sizes 3 to 120
CLCH-SVX03C-EN
December 2008

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Summary of Contents for Trane Climate Changer M Series

  • Page 1 Installation Operation Maintenance M-Series Climate Changer™ Air Handlers Unit sizes 3 to 120 CLCH-SVX03C-EN December 2008...
  • Page 2 CFCs such as HCFCs and HFCs. Responsible Refrigerant Practices! Trane believes that responsible refrigerant practices are important to the environment, our customers, and the air conditioning industry. All technicians who handle refrigerants must be certified. The Federal Clean Air Act (Section 608) sets forth the requirements for handling, reclaiming, recovering and recycling of certain refrigerants and the equipment that is used in these service procedures.
  • Page 3 The United States Environmental Protection Agency (EPA) believes that molds and bacteria inside buildings have the potential to cause health problems in sensitive individuals. If specified, Trane provides ultraviolet lights (UV-C) as a factory-engineered and installed option in select commercial air handling products for the purpose of reducing microbiological growth (mold and bacteria) within the equipment.

  • Page 4: Table Of Contents

    Table of Contents General Information ........... . 7 Operating Environment .
  • Page 5 Filter Installation ..........34 Filter Placement .
  • Page 6 Fan-Related Checks ..........72 Coil-Related Checks .

  • Page 7: General Information

    - for the M-Series air handler, without the cost and lead times associated with full-blown custom units. Trane continues to develop new options for M-Series air handlers, so that you remain firmly in control of performance and cost on every design project.

  • Page 8: Wiring

    For Danfoss VFD, TR1-SVX10A-EN Pre-Packaged Solutions If the air handler has been selected using one of Trane’s pre-packaged solutions options for controls, there are a number of resources available to aid in commissioning and start-up of the unit. These resources include commissioning sheets, graphics and technical application notes. The technical application notes include the control sequencing, Trane Graphic Programming (TGP) and Rover set-up files for the specific unit selected.

  • Page 9: Pre-Installation Requirements

    4-inch mounting legs for ease of handling. No skid is provided on units with base rails. Trane recommends leaving units and accessories, such as filter boxes and control devices, in their shipping packages/skids for protection and ease of handling until installation.

  • Page 10: Assembly Hardware

    Resolving Shipping Damage Trane air handlers ship free on board (FOB) ship dock, meaning that the unit belongs to the customer the moment the delivery truck leaves the factory shipping dock. If damage has occurred to the unit during shipment, follow these instructions: Note: Trane is not responsible for shipping damage.

  • Page 11: Long-Term Storage

    Pre-Installation Requirements Long-Term Storage While the unit is in storage: • Every two weeks, rotate the fan and motor shaft 30 revolutions by hand. Check for free rotation. • Every six months, check fan shaft bearings and grease lines. Add grease using a manual grease gun following the lubrications recommendations in the “Fan Bearing Lubrication”...

  • Page 12: Preparing The Unit Site

    Pre-Installation Requirements Preparing the Unit Site WARNING Live Electrical Components! During installation, testing, servicing and troubleshooting of this product, it may be necessary to work with live electrical components. Have a qualified licensed electrician or other individual who has been properly trained in handling live electrical components perform these tasks. Failure to follow all electrical safety precautions when exposed to live electrical components could result in death or serious injury.

  • Page 13: Dimensions And Weights

    Dimensions and Weights Service Clearances Figure 1. Service Clearance Table 1. Service clearances (inches) Clearance Items 100 120 A (filter) B (coil) C (fan) D (starter or VFD) Note: At a minimum, the above clearance dimensions are recommended on one side of the unit for regular service and maintenance. Refer to as-built submittal for locations of items such as filter access doors, coil, piping connections, motor locations, etc.

  • Page 14: Single-Wall Construction Weights

    Note: For specific dimensional and weight information, refer to the unit submittals. The dimensions and weights in this manual are approximate. Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.
  • Page 15 Note: For specific dimensional and weight information, refer to the unit submittals. The dimensions and weights in this manual are approximate. Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.

  • Page 16: Double-Wall Construction Weights

    Note: For specific dimensional and weight information, refer to the unit submittals. The dimensions and weights in this manual are approximate. Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.
  • Page 17 Note: For specific dimensional and weight information, refer to the unit submittals. The dimensions and weights in this manual are approximate. Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.

  • Page 18: Single-Piece Shipment Limitations

    Dimensions and Weights Single-Piece Shipment Limitations The specifications provided in Table 6 indicate the maximum values for a single-piece shipment. If either the maximum weight or maximum length is exceeded, the air handler will ship in multiple pieces. Note: These limits are based on a four-point lift. Table 6.

  • Page 19: Motor Weights

    Dimensions and Weights Motor Weights Fan weights provided in this manual include the heaviest ODP (open drip-proof) motor. Approximate weights below are based on A.O. Smith brand motors. Table 8. Approximate motor weights Motor Horsepower Type Voltage 1/6 1/4 1/3 1/2 1-1/2 7-1/2 10 75 100 125...

  • Page 20: Installation - Mechanical

    Installation - Mechanical Lifting and Rigging WARNING Heavy Objects! Do not use cables (chains or slings) except as shown. Each of the cables (chains or slings) used to lift the unit must be capable of supporting the entire weight of the unit. Lifting cables (chains or slings) may not be of the same length.

  • Page 21: General Lifting Considerations

    Installation - Mechanical Figure 2. Lifting detail for unit sizes 3 to 57 without a Figure 3. Lifting detail for unit sizes 3 to 57 with a base base rail rail Rigging and spreader Rigging and spreader bars furnished bars furnished by others by others Typical unit or subassembly...

  • Page 22: Forklifting Considerations

    Do not use a fork lift on air handlers or subassemblies larger than size 30. Improper use of fork lifts on units larger than size 30 may result in equipment damage. Trane is not responsible for equipment damage resulting from improper forklifting practices.

  • Page 23: Unit Placement

    Unit Placement Refer to the unit submittals and unit tagging for correct placement of all modules. If there are any discrepancies between the submittals and the unit tagging, contact your local Trane representative before proceeding. Following the module order on the unit submittals and tagging, individually place each unassembled module or subassembly in the appropriate installation location.

  • Page 24: Assembling Optional 6-Inch Mounting Legs

    Installation - Mechanical Figure 7. Six-inch mounting leg installation Assembling Optional 6-Inch Mounting Legs All units or subassemblies that do not ship on a base rail ship with 4-inch mounting legs that secure the unit to the shipping skid. After the unit is in place and the skids are removed, these mounting legs may be used to secure the unit to the floor, housekeeping pad, or mounting platform.

  • Page 25: Ceiling Suspension

    Installation - Mechanical Ceiling Suspension Note: Ceiling suspension is recommended only for M-Series unit sizes 3 to 57 with factory- provided base rails. Unit sizes 66 to 120 should be platform-mounted. Using a Field-Provided Mounting Frame If a factory-provided base rail was not ordered, the installer/contractor must provide a ceiling- suspended mounting frame designed to support the length, width, and weight of the entire air- handling unit.

  • Page 26: Module-To-Module Assembly

    The number of modules to be assembled often makes it necessary to use more than one module to ship the assembly material; therefore, check all modules thoroughly before contacting your Trane sales representative to report missing items. Modules are joined with gasketing applied to one of the mating surfaces and hardware to bolt the modules together.
  • Page 27 Installation - Mechanical Figure 14. Module-to-module installation – Figure 14 shows basic module-to-module assembly. Figure 15. Coil-module-to-downstream-module assembly – Figure 15 shows coil- module-to-module bolt-up Gasket used on sides and top channels between modules. with splash guard. Wrap corners. No seams in corners. White Butyl tape required between: -adjacent drain pans -adjacent splash guard with J channels...
  • Page 28 Installation - Mechanical Figure 16. Stacked unit assembly – Figure 16 shows stacked unit assembly. GKT 03870 Figure 17. Unit roof installation, sizes 3 to 57 – Figure 17 shows module-to- module assembly for unit sizes 3 to 57 with a roof. CLCH-SVX03C-EN...
  • Page 29 Installation - Mechanical Figure 18. Module-to-module with unit roof 66 to 120 – Figure 18 shows module-to- module assembly for unit sizes 66 to 120 with a roof. GKT 03870 Figure 19. Seam cap installation (unit sizes 66 to 120) –...
  • Page 30 Installation - Mechanical 4. If the unit is equipped with factory-mounted controls, fasten the quick connects where the modules bolt together (see Figure 20 Figure 21). Note: Reference the appropriate controller manual for more details on the installation of units with factory-mounted controls.
  • Page 31 Installation - Mechanical 5. Use a bar clamp or come-along to compress the gasketing and pull the modules together. 6. Install the brackets as shown in Figure 22, inserting the appropriate screws using a powered impact gun and taking care not to strip the bolts. Note: Be sure to compress the gasketing to avoid excessive air leakage.
  • Page 32 Installation - Mechanical 7. For units sizes 3 to 57 with base rails, bolt the base rails together using 5/16-inch bolts (see Figure 23). For unit sizes 66 to 120, bolt the base rail together using grade 5, 1/2-inch bolts, nuts, and locking washers (see Figure 24).

  • Page 33: Component Installation Requirements

    • A pre-filter module is placed before the fan. Note: Cartridge and bag filters provided by Trane are fitted with a 7/8-inch header that fits in the filter track. If using filters supplied by another manufacturer, filters should be purchased with a 7/8-inch header.

  • Page 34: Filter Installation

    Component Installation Requirements Filter Installation WARNING Pressurized Cabinet! Disconnect all electric power, including remote disconnects before opening door. Follow proper lockout/tagout procedures to ensure the equipment cannot be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury. To install filters: 1.

  • Page 35: Filter Placement

    Component Installation Requirements Filter Placement Figure 28. 2-inch and 4-inch Angled Filter Layout CLCH-SVX03C-EN...
  • Page 36 Component Installation Requirements Figure 29. Bag and Cartridge Filter Layout CLCH-SVX03C-EN...
  • Page 37 Component Installation Requirements Figure 30. 2-inch and 4-inch Open or Flat Filter and 2-inch and 4-inch High-Efficiency Filter Layout CLCH-SVX03C-EN...
  • Page 38 Component Installation Requirements Figure 31. HEPA Filter Layout Size 10 Size 8 Size 12 Size 3 Size 6 4 ft 6 ft 8 ft 10 ft 12 ft Size 25 Size 30 Size 17 Size 21 Size 14 14 ft 18 ft 22 ft 26 ft...

  • Page 39: Fan Modules

    Component Installation Requirements Fan Modules The fan module can be configured as either draw-thru or blow-thru. Review the submittals and unit tagging information prior to assembly to determine placement. Fan Isolation The fan-and-motor assembly is internally isolated. The fan and motor bases are bolted to a minimum of four spring isolators.

  • Page 40: Adjusting The Isolators

    Follow proper lockout/tagout procedures to ensure the equipment cannot be inadvertently energized. For variable frequency drives or other energy storing components provided by Trane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors. Verify with an appropriate voltmeter that all capacitors have discharged.

  • Page 41: Damper Modules

    Component Installation Requirements Damper Modules Dampers are factory-installed and adjusted and can be found in mixing box/economizer modules, internal or external face-and-bypass modules, and face damper modules. There are two damper blade configurations available: parallel-blade and opposed-blade. Traq™ dampers are another type of damper available in mixing box modules.

  • Page 42: Opposed-Blade And Parallel-Blade Dampers

    Component Installation Requirements Opposed-Blade and Parallel-Blade Dampers The damper actuator is internally mounted on the end drive rod for mixing box module sizes 3, 6, and 8 (see Figure 35). The driven damper rotates 90 degrees when the driver damper is turned 90 degrees.

  • Page 43: Multizone Modules

    Component Installation Requirements Figure 37. Typical internal face-and-bypass Figure 38. Typical external face-and-bypass configuration configuration Multizone Modules Under certain operating conditions, condensation may form on the cold deck portion of the multizone damper section. To prevent this, insulate around the damper rods. Be sure the insulation does not affect damper operation.

  • Page 44: Duct Connections

    Component Installation Requirements 5. Repeat steps 3 and 4 for the remaining zones. 6. Attach the damper operator drive rod to one blade axle in each zone with the two-deck damper. 7. Use the self-drilling screws provided to mount the bearing bracket assembly (see Figure 39).

  • Page 45: Damper Module Connections

    Component Installation Requirements Connections made directly to the discharge opening of the fan should have a minimum of three fan diameters of straight duct before any turns or transitions. The ductwork should be the same size as the fan discharge opening. The first turn of the connection should be in the same direction as the fan rotation as shown in Figure 40.

  • Page 46: Traq Damper Connections

    Component Installation Requirements Traq Damper Connections Size the duct connections to attach to the specified portion on the face of the Traq damper module. For a mitered corner, provide one hydraulic duct diameter between the entering face of the Traq dampers and the duct turn.
  • Page 47 Component Installation Requirements When attaching a bypass duct to a downstream fan module, it may be necessary to cut a hole in the fan module panel. When cutting a penetration, it is important the cutting have the same cross sectional area as the bypass duct. In other words the length of the opening should be the same as the height of the duct (see Figure Figure...

  • Page 48: Other Module Connections

    Component Installation Requirements Figure 45. External face-and-bypass with duct configuration designed to bypass air into a fan module Duct External Coil Coil Face and Bypass Other Module Connections Access modules, coil modules, and intake modules have open inlets with a 2-inch (sizes 3 to 30) or 2 1/2-inch (sizes 35 to 120) frame for connecting the ductwork.

  • Page 49: Coil Piping And Connections

    Coil Piping and Connections General Coil Piping Recommendations Proper installation, piping, and trapping is necessary to ensure satisfactory coil operation and to prevent operational damage: • Support all piping independently of the coils. • Provide swing joints or flexible fittings on all connections that are adjacent to heating coils to absorb thermal expansion and contraction strains.

  • Page 50: Drain Pan Trapping

    Threaded condensate drain connections are provided on only one side of the coil module. Pitch the connection lines horizontal or downward toward an open drain. Trane recommends installing a plug to facilitate cleaning of the trap.
  • Page 51 Coil Piping and Connections Figure 46. Drain pan trapping for module under negative pressure Normal operation + pipe diameter where: = 1 inch for each inch of negative pressure* plus 1 inch = 1/2 *Negative pressure = total unit static pressure at worst case (loaded filters) minus external pressure Figure 47.

  • Page 52: Steam Coil Piping

    Coil Piping and Connections Steam Coil Piping M-Series air handlers fitted with steam coils have labeled holes for piping penetrations. Figure 48 Figure 49 illustrate typical steam coil piping configurations. See Table 14 for the codes of system components in these figures. Figure 48.
  • Page 53 – Use bucket traps only when the supply steam is not modulated and is 25 psig or higher. Note: Trane steam coils require a minimum of 2 psi of pressure to assure even heat distribution. CLCH-SVX03C-EN...

  • Page 54: Water Coil Piping

    Coil Piping and Connections 2. Trap each coil separately to prevent holding up condensate in one or more of the coils. 3. Install strainers as close as possible to the inlet side of the trap. 4. If installing coils in series airflow, control each coil bank independently with an automatic steam-control valve.
  • Page 55 Coil Piping and Connections Figure 50. Typical piping for type 5W one-row water coil Water supply main Water return main Drain Figure 51. Typical piping for type 5A, 5W two-row, K, W 3- to 12-row, WD, D, 5D, and DD water coils Drain Figure 52.

  • Page 56: Refrigerant Coil Piping

    Coil Piping and Connections For stacked coils, see typical configuration in Figure Figure 53. Typical piping for Type 5A, 5W two-row, K, W 3- to 12-row, WE, D and DD stacked water coils Drain Refrigerant Coil Piping Note: Refer to the “Responsible Refrigerant Practices!”...

  • Page 57: Liquid Lines

    Coil Piping and Connections Figure 54. Example of placement for split-system components Access port Manual Discharge ball valve Access line port Filter Manual angle valves Manual Compressors ball valve Check/relief Liquid line Condensing unit valve Expansion valves Solenoid Moisture- valve indicating Access Filter drier...
  • Page 58 Coil Piping and Connections • Filter drier. There is no substitute for cleanliness during system installation. The filter drier prevents residual contaminants, introduced during installation, from entering the expansion valve and solenoid valve. • Access port. The access port allows the unit to be charged with liquid refrigerant and is used to determine subcooling.

  • Page 59: Suction Lines

    Components. Installing the suction line requires field installation of these components: a filter, access port, and a Frostat™ control when the refrigerant coil is used with Trane condensing units. Position them as close to the compressor as possible. Note: Placement of the Frostat control is illustrated in Figure 54 on page •...

  • Page 60: Examples Of Field-Installed Evaporator Piping

    Coil Piping and Connections Examples of Field-Installed Evaporator Piping Single-Circuit Condensing Unit: Evaporator Coil with One Distributor Figure 56. Single-circuit evaporator coil with one distributor 1. Pitch the liquid line slightly—1 inch/10 feet [1 cm/3 m]—so that the refrigerant drains toward the evaporator.

  • Page 61: Single-Circuit Condensing Unit: Evaporator Coil With Two Distributors

    Coil Piping and Connections Single-Circuit Condensing Unit: Evaporator Coil with Two Distributors Figure 57. Single-circuit evaporator coil with two distributors 1. Pitch the liquid line slightly—1 inch/10 feet Evaporator coil [1 cm/3 m]—so the refrigerant drains Suction line with horizontal-split toward the evaporator.

  • Page 62: Single-Circuit Condensing Unit: Evaporator Coil With Four Distributors

    Coil Piping and Connections Single-Circuit Condensing Unit: Evaporator Coil with Four Distributors Figure 58. Single-circuit evaporator coil with two distributors 1. Pitch the liquid line slightly—1 inch/10 feet [1 cm/3 m]—so the refrigerant drains toward the evaporator. 2. Provide one expansion valve per distributor. 3.

  • Page 63: Dual-Circuit Condensing Unit: Evaporator Coil With Two Distributors)

    Coil Piping and Connections Dual-Circuit Condensing Unit: Evaporator Coil with Two Distributors) Figure 59. Dual-circuit evaporator coil with two distributors 1. Pitch the liquid lines slightly—1 inch/10 feet [1 cm/3 m]—so the refrigerant drains toward the evaporator. 2. Provide one expansion valve per distributor. 3.

  • Page 64: Dual-Circuit Condensing Unit: Evaporator Coil With Four Distributors

    Coil Piping and Connections Dual-Circuit Condensing Unit: Evaporator Coil with Four Distributors Figure 60. Dual-circuit evaporator coil with four distributors 1. Pitch the liquid line slightly—1 inch/10 feet [1 cm/3 m]—so the refrigerant drains toward the evaporator. 2. Provide one expansion valve per distributor.

  • Page 65: Dual-Circuit Condensing Unit: Evaporator Coil With Eight Distributors

    Coil Piping and Connections Dual-Circuit Condensing Unit: Evaporator Coil with Eight Distributors Figure 61. Dual-circuit evaporator coil with eight distributors 1. Pitch the liquid line slightly—1 inch/10 feet [1 cm/3 m]—so the refrigerant drains toward the evaporator. 2. Provide one expansion valve per distributor. 3.

  • Page 66: Wiring

    Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. For variable frequency drives or other energy storing components provided by Trane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors.
  • Page 67 Wiring Figure 62. Transformer plate Figure 63. Variable-frequency drive (VFD) Figure 64. Controller with power box attached All direct-digital controllers (DDCs) are provided with line voltage to 24 Vac control transformers mounted and wired in the starter or variable-frequency drive (VFD) power box transformer plate (see Figure 62) or 120 to 24 Vac control transformers mounted and wired in the auxiliary control...
  • Page 68 Wiring To provide field-wiring to units with DDC controls: • If VFD or starter is not factory-mounted, provide 120 Vac power to a transformer in the junction box when a separate circuit is recommended (see Figure 64). • Install outside-air sensor and space sensor, if ordered. •...

  • Page 69: Controls Interface

    Controls Interface The portable operator display is used for temporary connection to and operation of Tracer MP580/ 581 and AH540/541 controllers. With the portable operator display, you can monitor data, change setpoints, monitor alarms, and override points. The portable operator display includes a 10 ft (3 m) cable with connector that is stored in the storage compartment of the carrying bag.

  • Page 70: Adjusting Brightness And Contrast

    Controls Interface Adjusting brightness and contrast To adjust the brightness and contrast of the operator display: 1. On the home screen, press Setup. The Setup menu appears. 2. Page down to view the next screen. 3. Press the Adjust Brightness and Contrast buttons. The Brightness and Contrast screen appears. 4.

  • Page 71: Startup

    Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. For variable frequency drives or other energy storing components provided by Trane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors.

  • Page 72: Fan-Related Checks

    It is recommended that the services of a qualified water treatment specialist be engaged to determine what water treatment, if any, is required. Trane assumes no responsibility for equipment failures which result from untreated or improperly treated water, or saline or brackish water.

  • Page 73: Motor-Related Checks

    Inspect the entire motor for rust and corrosion. • Bump-start the unit and confirm the fan wheel rotates properly, as indicated by the rotation arrow located on the fan housing. Note: For motor warranty needs, contact you local Trane sales office. Unit Operation WARNING Rotating Components! During installation, testing, servicing and troubleshooting of this product it may be necessary to measure the speed of rotating components.

  • Page 74: Calculate Motor Voltage Imbalance

    Startup Calculate Motor Voltage Imbalance After startup, measure the motor voltage and amperage on all phases to ensure proper operation. The readings should fall within the range given on the motor nameplate. The maximum allowable voltage imbalance is 2 percent. Voltage imbalance is defined as 100 times the sum of the deviation of the three voltages from the average, divided by twice the average voltage.

  • Page 75: Tension The Fan Belt

    Startup Tension the Fan Belt NOTICE Belt Tension! Do not over-tension belts. Excessive belt tension will reduce fan and motor bearing life, accelerate belt wear and possibly cause shaft failure. Under tensioning belts is the primary cause of premature belt failure. Belts should not squeal at startup. Recheck belt tension after 8 hours, 24 hours, and 100 hours of operation and monthly thereafter.

  • Page 76: Determine Fan Speed

    Startup Table 15. Typical sheave diameter and deflection force Belt Deflection Force (lbs) Super gripbelts and Gripnotch belts and Smallest sheave unnotched gripbands notched gripbands Cross diameter range Speed (rpm) section (in.) range Used belt New belt Used belt New belt 1,000–2,500 3.0–3.6 2,501–4,000...

  • Page 77: Align Fan And Motor Sheaves

    Startup Figure 70. Proper drive alignment Align Fan and Motor Sheaves Center line Lines must Align the fan and motor sheaves using a straightedge. The straightedge must coincide be parallel must be long enough to span the distance between the outside edges of the sheaves.
  • Page 78 Startup VCM (Transducer) Calibration. The VCM has an auto-zero function that recalibrates the transducer once every minute. When troubleshooting, allow for the recalibration time before making any measurements. Input Power. The only input the VCM needs is the 24 Vac power connected to terminals 1TB1–5 and 1TB1–6.

  • Page 79: Fan Inlet Airflow Measuring System

    Startup Fan Inlet Airflow Measuring System Figure 72. Piezometer ring airflow Table 19. M-Series fan inlet dimensions Unit Size Inside Diameter (in.) Unit Size Inside Diameter (in.) measurement 7.810 21.259 7.810 18.250 6.100 17.080 6.100 17.080 8.75 15.160 10.250 15.160 9.066 22.90 8.540...

  • Page 80: Wiring

    Startup Wiring In the absence of a factory-provided control system, consult the transmitter manufacturer or the factory for wiring. Note: Ensure that the transmitter has a separate power source. Transmitter Calibration The transmitter is factory-calibrated to a specific pressure range with a 0-20 inch w.g. range being used in most cases.

  • Page 81: External Insulating Requirements

    External Insulating Requirements External Insulating Requirements NOTICE Microbial Growth! Wet interior unit insulation can become an amplification site for microbial growth (mold), which may cause odors and damage to the equipment and building materials. If there is evidence of microbial growth on the interior insulation, the insulation should be removed and replaced prior to operating the system.

  • Page 82: Routine Maintenance

    Routine Maintenance The following checklist is provided as an abbreviated guide to periodic maintenance. Detailed procedural information is given after this checklist. WARNING Hazardous Service Procedures! The maintenance and troubleshooting procedures recommended in this section of the manual could result in exposure to electrical, mechanical or other potential safety hazards. Always refer to the safety warnings provided throughout this manual concerning these procedures.

  • Page 83: Air Filters

    To replace throwaway filters, install new filters with the directional arrows pointing in the direction of airflow. Note: Bag and cartridge filters must have an airtight seal to prevent air bypass. If using other than Trane-supplied filters, apply foam gasketing to the vertical edges of the filter. Permanent Filters To clean permanent filters: 1.

  • Page 84: Drain Pans

    Routine Maintenance Drain Pans WARNING Hazardous Chemicals! Cleaning agents can be either acidic or highly alkaline. Handle chemical carefully. Proper handling should include goggles or face shield, chemical resistant gloves, boots, apron or suit as required. For personal safety refer to the cleaning agent manufacturer’s Materials Safety Data Sheet and follow all recommended safe handling practices.

  • Page 85: Fans

    Routine Maintenance Fans WARNING Rotating Components! Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/ tagout procedures to ensure the equipment can not be inadvertently energized. Secure drive sheaves to ensure rotor cannot freewheel. Failure to secure drive sheaves or disconnect power before servicing could result in death or serious injury.

  • Page 86: Fan Bearing Lubrication

    Routine Maintenance Fan Bearing Lubrication NOTICE: Bearing Failure! Do not mix greases with different bases within the bearing. Mixing grease within the bearing may result in premature bearing failure. The grease used in electric motor bearings is usually not compatible with the grease used in fan bearings.

  • Page 87: Motor Bearing Lubrication

    Routine Maintenance Motor Bearing Lubrication WARNING Hazardous Voltage! Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedure to ensure the power cannot be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury. Obtain an IOM from the motor manufacturer for the specific motor installed.

  • Page 88: Type K Cooling Coils

    Routine Maintenance 6. Spray the leaving air side of the coil first, then the entering air side. 7. Thoroughly rinse both sides of the coil and the drain pan with cool, clean water. 8. Repeat steps 6 and 7 as necessary. 9.

  • Page 89: Coil Winterization

    NOTICE: Coil Freeze-up! Properly drain and vent coils when not in use. Trane recommends glycol protection in all possible freezing applications. Use a glycol approved for use with commercial cooling and heating systems and copper tube coils. Failure to do so may result in equipment damage.

  • Page 90: Type K Coils

    5. To ensure no water remains in the coil, do not replace the header covers until the coils are put back into service. Note: When the coils are put back into service, use new gaskets. Trane recommends washers be used under the bolt heads and bolts be evenly tightened to 50 ft-lbs torque.
  • Page 91 Routine Maintenance Accumulated dirt and other organic matter exposed to water or extended periods of high relative humidity (60 percent or higher) can support microbial growth, which must be removed to prevent the unit from becoming a contaminant source. If evidence of contamination exists in either the wet or dry sections: •...

  • Page 92: Ultraviolet (Uv) Light Maintenance

    Routine Maintenance To clean a porous insulating surface (fiberglass insulation): 1. Disconnect all electrical power to the unit. 2. Wearing the appropriate personal protective equipment, use a vacuum device with a HEPA filter (99.97 percent efficient at 0.3 micron particles) to remove the accumulated dirt and organic matter.

  • Page 93: Replacing The Bulbs

    Routine Maintenance Replacing the Bulbs WARNING Hazardous Vapors! If large numbers of UV bulbs are broken, an appropriate respirator should be considered to prevent inhalation of mercury vapors. Failure to use a respirator could result in death or serious injury. CAUTION Broken Glass! Bulbs are fragile and can be easily broken.

  • Page 94: Troubleshooting

    Troubleshooting Troubleshooting This section is intended to be used as a diagnostic aid only. For detailed repair procedures, contact your local Trane service representative. WARNING Hazardous Service Procedures! The maintenance and troubleshooting procedures recommended in this section of the manual could result in exposure to electrical, mechanical or other potential safety hazards.
  • Page 95 Troubleshooting Table 24. Air handler troubleshooting recommendations Symptom Probable Cause Recommended Action Motor is poorly positioned Adjust belt tension. Loose fan belt Worn or damaged belt Replace belt or belt set. Check sheave alignment. Worn sheaves Replace sheaves. Worn sheaves Replace sheaves.
  • Page 96 Supersedes CLCH-SVX03C-EN March 2006 www.trane.com For more information, contact your local Trane Trane has a policy of continuous product and product data improvement and reserves the right to office or e-mail us at comfort@trane.com change design and specifications without notice.

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