Table of Contents
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Installation, Operation,
and Maintenance
Packaged Rooftop Air Conditioners
Precedent™- Electric/Electric
3 – 10Tons – 60 Hz
Model Numbers
Only qualified personnel should install and service the equipment. The installation, starting up, and
servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific
knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could
result in death or serious injury. When working on the equipment, observe all precautions in the literature
and on the tags, stickers, and labels that are attached to the equipment.
December 2011
TSC036E - TSC102E
TSC120F
SAFETY WARNING
THC036E - THC120E
THC092F
RT-SVX22G-EN
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Table of Contents
Troubleshooting
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Summary of Contents for Ingersoll-Rand TSC036E
- Page 1 Installation, Operation, and Maintenance Packaged Rooftop Air Conditioners Precedent™- Electric/Electric 3 – 10Tons – 60 Hz TSC036E - TSC102E THC036E - THC120E Model Numbers TSC120F THC092F SAFETY WARNING Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training.
- Page 2 Warnings, Cautions and Notices Warnings, Cautions and Notices. Note that warnings, cautions and notices appear at appropriate intervals throughout this manual. Warnings are provide to alert installing contractors to potential hazards that could result in death or personal injury. Cautions are designed to alert personnel to hazardous situations that could result in personal injury, while notices indicate a situation that could result in equipment or property-damage-only accidents.
- Page 3 Warnings, Cautions and Notices WARNING Personal Protective Equipment (PPE) Required! Installing/servicing this unit could result in exposure to electrical, mechanical and chemical hazards. • Before installing/servicing this unit, technicians MUST put on all Personal Protective Equipment (PPE) recommended for the work being undertaken. ALWAYS refer to appropriate MSDS sheets and OSHA guidelines for proper PPE.
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Page 4: Table Of Contents
Table of Contents Model Number Description ..........8 Model Number Notes . - Page 5 Table of Contents Horizontal Units ..........27 Ductwork .
- Page 6 Table of Contents ReliaTel units with Direct Drive Indoor Fan (7.5 - 10 Ton High Efficiency, 10 Ton) ............61 Units with Constant CFM Direct Drive Indoor Fan .
- Page 7 Table of Contents Programmable & Digital Zone Sensor Test ..... . . 79 ReliaTel Refrigeration Module (RTRM) Default Chart ....79 Unit Operation without a Zone Sensor .
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Page 8: Model Number Description
Model Number Description Digit 1 - Unit Type Digit 14 - Fresh Air Selection Digit 18 - Through the Base Provisions DX Cooling No Fresh Air Manual Outside Air Damper 0-50% Digit 2 - Efficiency Note: Applicable to Digit 1,T models. Motorized Outside Air Damper NoThrough the Base Provisions Standard Efficiency... -
Page 9: Model Number Notes
Model Number Description Barometric Relief for horizontal 21. Available forY 3,4,5,6,7½,8½ ton Digit 25 - Monitoring Controls configured units must be ordered standard/high efficiency models No Monitoring Control Clogged Filter Switch as field installed accessory. only. Fan Failure Switch 8. Through the base electric required 22. -
Page 10: General Information
General Information Unit Inspection As soon as the unit arrives at the job site • Verify that the nameplate data matches the data on the sales order and bill of lading (including electrical data). • Verify that the power supply complies with the unit nameplate specifications. •... -
Page 11: Economizer Control Actuator (Optional)
General Information system that is referred to as “Refrigeration Module” (RTRM).The acronym RTRM is used extensively throughout this document when referring to the control system network. These modules through Proportional/Integral control algorithms perform specific unit functions that governs unit operation in response to; zone temperature, supply air temperature, and/or humidity conditions depending on the application.The stages of capacity control for these units are achieved by starting and stopping the compressors. -
Page 12: System Input Devices & Functions
General Information System Input Devices & Functions The RTRM must have a zone sensor or thermostat input in order to operate the unit.The flexibility of having several mode capabilities depends upon the type of zone sensor or thermostat selected to interface with the RTRM. The descriptions of the following basic Input Devices used within the RTRM network are to acquaint the operator with their function as they interface with the various modules. -
Page 13: High Pressure Control
General Information Electromechanical Control When the LPC is opened, the compressor for that circuit is turned off immediately.The compressor will restart when the LPC closes. High Pressure Control ReliaTel Control The high pressure controls are wired in series between the compressor outputs on the RTRM and the compressor contactor coils. -
Page 14: Zone Sensor (Baysens110*)
General Information Zone Sensor (BAYSENS110*) This electronic sensor features four system switch settings (Heat, Cool, Auto, and Off) and two fan settings (On and Auto) with four system status LED’s. It is a manual or auto changeover control with dual setpoint capability. It can be used with a remote zone temperature sensor BAYSENS077*. Wall Mounted Relative Humidity Sensor (BAYSENS036*) Field installed, wall mounted humidity sensor is used to control activation of Enhanced Dehumidification and Hot Gas Reheat Dehumidification. -
Page 15: Remote Zone Sensor (Baysens016*)
General Information Remote Zone Sensor (BAYSENS016*) This bullet type temperature sensor can be used for outside air (ambient) sensing, return air temperature sensing, supply air temperature sensing, remote temperature sensing (uncovered. Wiring procedures vary according to the particular application and equipment involved. Refer to the unit’s wiring diagrams for proper connections. -
Page 16: Discharge Line Temp Switch (Dlts)
General Information If this circuit is open before the compressor is started, the compressor will not be allowed to operate. Anytime this circuit is opened during compressor operation, the compressor for that circuit is immediately turned “Off” .The compressor will restart when the FOS closes. Discharge Line Temp Switch (DLTS) The DLTS is looped in series with HPC and LPC. -
Page 17: Pre-Installation
Pre-Installation WARNING Fiberglass Wool! Product contains fiberglass wool. Disturbing the insulation in this product during installation, maintenance or repair will expose you to airborne particles of glass wool fibers and ceramic fibers known to the state of California to cause cancer through inhalation. You MUST wear all necessary Personal Protective Equipment (PPE) including gloves, eye protection, mask, long sleeves and pants when working with products containing fiberglass wool. -
Page 18: Unit Dimensions
Unit Dimensions Unit Clearances Figure 1, p. 18 illustrates the minimum operating and service clearances for either a single or multiple unit installation.These clearances are the minimum distances necessary to assure adequate serviceability, cataloged unit capacity, and peak operating efficiency. Figure 1. - Page 19 Unit Dimensions Figure 2. 3-5 ton standard efficiency, 3 ton high efficiency Note: All dimensions are in inches/millimeters. Figure 3. 3-5 ton standard efficiency, 3 ton high efficiency - roof curb Note: All dimensions are in inches/millimeters. 44 MM 44 MM 1038 1038 MM 1053...
- Page 20 Unit Dimensions Figure 4. 3-5 ton standard efficiency, 3 ton high efficiency - unit clearance and roof opening Note: All dimensions are in inches/millimeters. CLEARANCE 36” (914 MM) Figure 5. 6, 7½ (single) ton standard efficiency, 4 - 5 ton high efficiency Note: All dimensions are in inches/millimeters.
- Page 21 Unit Dimensions Figure 6. 6, 7½ (single) ton standard efficiency, 4 - 5 ton high efficiency - roof curb Note: All dimensions are in inches/millimeters. (356 MM) (2130 MM) Figure 7. 6, 7½ (single) ton standard efficiency, 4 - 5 ton high efficiency - unit clearance and roof opening Note: All dimensions are in inches/millimeters.
- Page 22 Unit Dimensions Figure 8. 7½ ton (dual) - 10 ton standard efficiency, 6 & 7½ (microchannel) ton high efficiency Note: All dimensions are in inches/millimeters. Figure 9. 7½ ton (dual) - 10 ton standard efficiency, 6 & 7½ (microchannel) ton high efficiency - roof curb Note: All dimensions are in inches/millimeters.
- Page 23 Unit Dimensions Figure 10. 7½ ton (dual) - 10 ton standard efficiency, 6 & 7½ (microchannel) ton high efficiency - unit clearance and roof opening Note: All dimensions are in inches/millimeters. Figure 11. 7½ (dehumidification) - 10 ton high efficiency Note: All dimensions are in inches/millimeters.
- Page 24 Unit Dimensions Figure 12. 7½ (dehumidification) - 10 ton high efficiency - roof curb Note: All dimensions are in inches/millimeters. 18 1/2” (470 MM) 6 5/8” 83 7/8” (168 MM) 1” (2130 MM) (25 MM) 34 3/8” 56 3/8” (873 MM) (1432 MM) 18 1/2”...
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Page 25: Installation
Maximum unit & corner weights (lbs) and center of gravity dimensions (in.) - cooling models Maximum Model Center of Gravity Weights Corner Weights (in.) Unit Model No. Shipping Length Width TSC036E TSC048E TSC060E TSC072E 7½ TSC090E 7½ TSC092E 8½ TSC102E 1048 TSC120F... - Page 26 Installation Figure 15. Rigging and center of gravity (a),(b) Table 2. Factory installed options (fiops)/accessory net weights (lbs) TSC036E-060E THC036E/ THC047E- TSC072E-102E THC092F, THC092E- THC037E 067E THC072E TSC120F 120E Net Weight Net Weight Net Weight Net Weight Net Weight Accessory...
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Page 27: Foundation
Installation Foundation Horizontal Units If the unit is installed at ground level, elevate it above the snow line. Provide concrete footings at each support location with a “full perimeter” support structure or a slab foundation for support. Refer to Table 1, p. 25 for the unit’s operating and point loading weights when constructing a footing foundation. - Page 28 Installation 3 7/8” 98 MM 9 3/8” 238 MM 32 1/4” Return 832 MM 16 3/4” 425 MM Supply 19 1/4” 489 MM 32 1/4” 4 3/4” 832 MM 120 MM 27 5/8” 701 MM 3/4-14 NPT DIA. HOLE CONDENSATE DRAIN 4 1/4”...
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Page 29: Ductwork
Installation Figure 20. 4-6/ 7½ (MCHE) ton high efficiency units and 6-10 ton standard efficiency units - down flow supply & return air openings w/ through the base utilities Figure 21. 7½ (dehumidification) - 10 ton high efficiency units - downflow supply & return air openings w/ through the base utilities 3 5/8”... -
Page 30: Roof Curb
Installation Table 3. Clearance required from duct to combustible surfaces Clearance required from duct to Model Number combustible surfaces (inches) T(S/H)C036-60E THC037-67E TSC072E THC072E TSC090E TSC092E THC092E/THC092F TSC102E THC102E TSC120F***A TSC120F***B THC120E Roof Curb Downflow The roof curbs for these units consists of a "full perimeter" enclosure to support the unit just inside of the unit base rail.The 7½... -
Page 31: Rigging
Installation Recommendations for installing the Supply Air and Return Air ductwork joining the roof curb are included in the curb instruction booklet. Curb ductwork must be fabricated and installed by the installing contractor before the unit is set into place. Note: For sound consideration, cut only the holes in the roof deck for the ductwork penetrations. - Page 32 Installation 1. Remove all drill screws fastening wood protection to metal baserail. Remove all screws securing wooden protection to wooden top crate. On 7½-10 ton high efficiency units, remove wire ties from outdoor grill. 2. Remove WoodenTop Crate. WARNING Heavy Objects! Ensure that all the lifting equipment used is properly rated for the weight of the unit being lifted.
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Page 33: General Unit Requirements
Installation Figure 25. Fork pockets (7½ (dehumidification) -10 ton high efficiency units) NOTICE 6. Lift the unit enough to allow the removal of base fork pocket protection components as shown in the following figures. When 7½ (dehumidification)- 10 ton high efficiency units are installed on smaller existing roof curb (50"x84") for replacement applications, do not remove alignment bracket.This bracket helps assure proper alignment of duct openings. -
Page 34: Factory Installed Economizer
Installation Factory Installed Economizer • Ensure the economizer has been pulled out into the operating position. Refer to the economizer installers guide for proper position and setup. • Install all access panels. Temperature Limit Switch Usage for Electric Heat Units Units are factory shipped in the down flow discharge configuration but can be field converted to a horizontal discharge configuration. - Page 35 Installation 2. Place SUPPLY DUCT COVER over down-flow return opening. (insulation side down) 3. Using self-drilling screws, (or screws removed from duct cover), screw through dimples to attach DUCT COVER to base. Figure 27. Supply duct cover Supply Duct Cover Screw into 4 dimples on top edge...
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Page 36: Tco-A Instructions
Installation Note: Certain unit/electric heater combinations require a limit switch change out for horizontal airflow applications. Refer to the following instructions to determine if this process is required for the unit undergoing installation. Figure 30. Supply & return openings Supply duct cover Insulation side down Return duct... -
Page 37: Return Air Smoke Detector
Installation Figure 31. TCO-A location Return Air Smoke Detector The factory installed Return Air Smoke Detector is installed in the Down flow discharge position. No additional field setup is required. If a unit is to be converted to Horizontal discharge, the following conversion must be performed: 1. - Page 38 Installation 3. Lift the tube and bracket from the down flow duct opening. Rotate the tube and bracket assembly 180 degrees ensuring that the holes on the copper sensing tube face away from the unit and face the return air ductwork. Refer to Horizontal Views below. Figure 33.
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Page 39: Main Electrical Power Requirements
Installation 120E,THC092F ,TSC072E-102E, andTSC120F units secure the tab on left side to the indoor coil block off with one of the screws removed in step 2 and secure the right side of the bracket with one of the screws removed from the access panel. Refer to Figure 34, p. -
Page 40: To Convert Drain Condensate Through The Base Of Unit
Installation The condensate drain pan is factory installed to drain condensate to the back side of the unit. See Figure 16, p. 27 Figure 17, p. 27. It can be converted to drain condensate out the front side of the unit or through the base. To convert drain condensate out the front of unit: 1. -
Page 41: Filter Installation
Installation Filter Installation The quantity of filters is determined by unit size. Access to the filters is obtained by removing the filter access panel. Refer to the unit Service Facts (shipped with each unit) for filter requirements. Note: Do not operate the unit without filters. Field Installed Power Wiring WARNING Proper Field Wiring and Grounding Required! -
Page 42: Standard Wiring
Installation Standard Wiring Location of the applicable electrical service entrance is illustrated in “Unit Dimensions, ” p. Complete the unit’s power wiring connections at Compressor Contactor # 1 (CC1) inside the unit control panel. Refer to the customer connection diagram that is shipped with the unit for specific termination points Provide proper grounding for the unit in accordance with local and national codes. -
Page 43: Field Installed Control Wiring
Installation Figure 37. 8½-10 ton high efficiency, and 7½ ton high efficiency with hot gas reheat dehumidification. SEAL BETWEEN WIRING AND CONDUIT WITH WEATHER PROOF SEALER TO PREVENT AIR LEAKAGE FIELD POWERED CONVENIENCE OUTLET CONTROL WIRING CONDUIT CONDUIT CONTROL WIRING CONDUIT BLACK GASKET Field Installed Control Wiring... -
Page 44: Ductor Wire)
Installation Table 5. Electromechanical thermostat 24V AC conductors with ReliaTel units Distance from Unit to Recommended Wire Control Size 000 - 460 feet 18 gauge 000 - 140 m .75 mm2 461 - 732 feet 16 gauge 141 - 223 m 1.3 mm2 733 - 1000 feet 14 gauge... - Page 45 Installation Table 7. Zone sensor module wiring Distance from Unit to Recommended Wire Control Size 0 - 150 feet 22 gauge 0 - 45.7 m .33 mm2 151 - 240 feet 20 gauge 46 - 73.1 m .50 mm2 241 -385 feet 18 gauge 73.5 - 117.3 m .75 mm2...
- Page 46 Installation Figure 40. ReliaTel options module Figure 41. ReliaTel relative humidity sensor (dehumidification option) Figure 42. ReliaTel humidistat (dehumidification option) RT-SVX22G-EN...
- Page 47 Installation Figure 43. Electro mechanical control customer low voltage routing (all units except 8½ - 10 ton high efficiency, and 7½ ton high efficiency with hot gas reheat dehumidification.) Figure 44. ReliaTel control customer low voltage routing (all units except 7½ (dehumidification) - 10 ton high efficiency) RT-SVX22G-EN...
- Page 48 Installation Figure 45. ReliaTel (without TBUE) control customer wire routing (7½ (dehumidification) - 10 ton high efficiency) Figure 46. ReliaTel (with TBUE) control customer wire routing (7½ (dehumidification) -10 ton high efficiency) RT-SVX22G-EN...
- Page 49 Installation Figure 47. Electromechanical (without TBUE) control customer wire routing (7½ (dehumidification) - 10 ton high efficiency) Figure 48. Electromechanical (with TBUE) control customer wire routing (7½ (dehumidification) - 10 ton high efficiency) RT-SVX22G-EN...
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Page 50: Smoke Detector Customer Low Voltage Wiring
Installation Smoke Detector Customer Low Voltage Wiring When interlocking System Sensor smoke detectors together, all of the detectors must be powered from the same power supply. If the smoke detectors are powered up by different power supplies, harmonics are set up and will fry the boards in some, if not all, of the detectors. If multiple smoke detectors are required, all detectors must be disconnected from the HVAC unit power supply and connected together from another single source supply. -
Page 51: Space Temperature Averaging (Reliatel™ Only)
Installation Space Temperature Averaging (ReliaTel™ only) Space temperature averaging is accomplished by wiring a number of remote sensors in a series/ parallel circuit. Using the BAYSENS016* or BAYSENS077*, at least four sensors are required to accomplish space temperature averaging. Figure 51. Examples •... - Page 52 Installation Table 8. Temperature vs. resistance Temperature Nominal Degrees F° Degrees C° Resistance -20° -28.9° 170.1 K - Ohms -15° -26.1° 143.5 K - Ohms -10° -23.3° 121.4 K - Ohms -5° -20.6° 103.0 K - Ohms 0° -17.8° 87.56 K - Ohms 5°...
- Page 53 Installation Figure 52. Typical field wiring diagrams for optional controls (ReliaTel only) BA YSENS075* BA YSENS075* BA YSENS108* BA YSENS106* BA YSENS110* BA YSENS119* BAYSENS073* BAYSENS074* BAYSENS075* ASYSTAT669A OPTIONAL REMOTE SENSOR RT-SVX22G-EN...
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Page 54: Pre-Start
Pre-Start Use the checklist provided below in conjunction with the “General Unit Requirements” checklist to ensure that the unit is properly installed and ready for operation. WARNING Hazardous Voltage w/Capacitors! Disconnect all electric power, including remote disconnects and discharge all motor start/run capacitors before servicing. -
Page 55: Electrical Phasing (Three Phase Motors)
Pre-Start The percentage of Imbalance equals: 100 X 226 - 221 = 2.2% The 2.2% imbalance in this example exceeds the maximum allowable imbalance of 2.0%.This much imbalance between phases can equal as much as a 20% current imbalance with a resulting increase in motor winding temperatures that will decrease motor life. -
Page 56: Compressor Crankcase Heaters (Optional/Standard With Thc036-120E, Thc092F, Tsc072-102E, Tsc120F)
Pre-Start • Restore the main electrical power and recheck the phasing. If the phasing is correct, open the disconnect switch or circuit protection switch and remove the phase sequence indicator. Compressor Crankcase Heaters (Optional/Standard with THC036-120E, THC092F, TSC072-102E, TSC120F) Each compressor can be equipped with a crankcase heater (On some units the crankcase heater comes standard).The proper operation of the crankcase heater is important to maintain an elevated compressor oil temperature during the “Off”... -
Page 57: Test Modes
Pre-Start Table 9. Service test guide for component operation Multi-Speed Fan Test Step Mode Econ Comp 1 Comp 2 Heat 1 Heat 2 Resistance Output Output Minimum Position Setpoint 0% Ω 2.2K Minimum Selectable Ventilation Economizer Ω Open 3.3K Test Open Cool Minimum Ω... -
Page 58: Electromechanical Controls Test Procedure
Pre-Start Electromechanical Controls Test Procedure See unit schematic for correct wire numbers. Fan Test and Minimum Ventilation Connect red thermostat wire (R) to black thermostat wire (G). Economizer Cooling Connect a jumper wire across OTS on Economizer Control (ECA). Connect red thermostat (R) wire to yellow thermostat wire (Y1). Cool 1 Connect red thermostat wire (R) to yellow thermostat wire (Y1). -
Page 59: Start-Up
Start-Up Verifying Proper Air Flow 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. -
Page 60: Units With Belt Drive Indoor Fan
Start-Up a. Relieve supply and/or return duct static. b. Change indoor fan speed tap to a higher value If the required CFM is too high, (external static pressure is low), do one or both of the following and repeat procedure: c. -
Page 61: Units With Direct Drive Indoor Fan With Mmc - Electromechanical Control
Start-Up Units with Direct Drive Indoor Fan with MMC - Electromechanical Control Much of the systems performance and reliability is closely associated with, and dependent upon having the proper airflow supplied both to the space that is being conditioned and across the evaporator coil.The indoor fan speed is changed by adjusting the output voltage from the MMC to the direct drive fan. - Page 62 Start-Up 3. If the required CFM is too high, (external static pressure is low causing motor HP output to be above table value), change indoor fan speed and repeat steps 1 and 2. • Stop the SERVICETEST, turn the main power disconnect switch to the "Off" position and reconnect Economizer 4-pin power connector if disconnected for this procedure.
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Page 63: Units With Constant Cfm Direct Drive Indoor Fan
Start-Up b. Change indoor fan speed and repeat steps 1 and 2. • To increase Fan RPM; Push &Turn the knob on the MMC counter-clockwise. Measure the DC voltage across pins Vt and com on the MMC. Using the fan rpm table in the unit Service Facts, determine RPM correlated to measured voltage. -
Page 64: Economizer Start-Up
Start-Up will develop an airflow velocity that falls within these limits over the entire airflow range specified in the evaporator fan performance tables. There are certain models however, if operated at low airflow, will not develop an airflow velocity that falls within the required 500 to 4000 feet per minute range. For these models, the design airflow shall be greater than or equal to the minimum CFM specified in the table provided below. - Page 65 Start-Up 3. Turn the MIN POS - DESIGN potentiometer on the RTEM clockwise to open or counter-clockwise to close.The damper will open to this setting for low speed fan operation. When adjusting minimum position, the damper may move to the new setting in several small steps.Wait at least 15 seconds for the damper to settle at the new position.
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Page 66: Compressor Start-Up
Start-Up 4. To stop the SERVICETEST, turn the main power disconnect switch to the “Off” position or proceed to the next component start-up procedure. Remove electro mechanical test mode connections (if applicable). Compressor Start-Up WARNING Live Electrical Components! During installation, testing, servicing and troubleshooting of this product, it may be necessary to work with live electrical components. -
Page 67: Final System Setup
Start-Up Momentarily jump across theTest 1 andTest 2 terminals of the LTB1 until the unit enters test mode 7. (See Table 9, p. 57). Once the unit is in the reheat test mode, verify that the 3 way valve has shifted to the reheat position and that the supply temperature rises 10 ºF more than when in cooling mode stage 2. -
Page 68: Maintenance
Maintenance Fan Belt Adjustment - Belt Drive Units WARNING Rotating Components! During installation, testing, servicing and troubleshooting of this product it may be necessary to work with live and exposed rotating components. Have a qualified or licensed service individual who has been properly trained in handling exposed rotating components, perform these tasks. -
Page 69: Monthly Maintenance
Maintenance Table 12. Belt tension measurement and deflection Deflection Force (Lbs.) Belts Small Cross Super Steel Cable Section Range Gripbelts Gripnotch Gripbelts Min. Max. Min. Max. Min. 3.0 - 3.6 4 1/2 3 7/8 5 1/2 3 1/4 3.8 - 4.8 3 1/2 4 1/2 6 1/4... -
Page 70: Heating Season
Maintenance • Check the fan shaft bearings for wear. Replace the bearings as necessary. • Check the supply fan belt. If the belt is frayed or worn, replace it. Refer to the “Fan Belt Adjustment” section for belt replacement and adjustments. •... - Page 71 Maintenance Microchannel (MCHE) Coils NOTICE: Coil Damage! DO NOT use any detergents with microchannel condenser coils. Use pressurized water or air ONLY, with pressure no greater than 600psi. Failure to do so could result in coil damage. For additional information regarding the proper microchannel coil cleaning procedure, refer to RT-SVB83*-EN.
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Page 72: Annual Maintenance
Maintenance d. spray the solution perpendicular (at 90 degrees) to the coil face. 6. 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. 7. - Page 73 Maintenance Table 13. Sample maintenance log Refrigerant Circuit #1 Refrigerant Circuit #2 Suct. Disch. Liquid Disch. Liquid Current Press. Press. Press. Super Sub- Compr. Suct. Press. Press. Super- Sub- Ambient Compr. Psig/ Psig/ Psig/ -heat cool. Press. Psig/ Psig/ heat cool.
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Page 74: Troubleshooting
Troubleshooting ReliaTel™ Control The RTRM has the ability to provide the service personnel with some unit diagnostics and system status information. Before turning the main power disconnect switch “Off” , follow the steps below to check the ReliaTel Refrigeration Module (RTRM). All diagnostics & system status information stored in the RTRM will be lost when the main power is turned “Off”... -
Page 75: System Status Checkout Procedure
Troubleshooting System Status Checkout Procedure “System Status” is checked by using one of the following two methods: Method 1 If the Zone Sensor Module (ZSM) is equipped with a remote panel with LED status indication, you can check the unit within the space. If the ZSM does not have LED’s, use Method 2. BAYSENS110*, BAYSENS109*, BAYSENS119*, BAYSENS023A all have the remote panel indication feature.The LED descriptions are listed below. -
Page 76: Service Failure
Troubleshooting Service Failure 13. If the supply fan proving switch has closed, the unit will not operate (when connected to RTOM), check the fan motor, belts, and proving switch. 14. Clogged filter switch has closed, check the filters. Simultaneous Heat and Cool Failure 15. -
Page 77: Method 1
Troubleshooting Method 1 To reset the system from the space, turn the “Mode” selection switch at the zone sensor to the “Off” position. After approximately 30 seconds, turn the “Mode” selection switch to the desired mode, i.e. Heat, Cool or Auto. Method 2 To reset the system at the unit, cycle the unit power by turning the disconnect switch “Off”... -
Page 78: Test 3 - System Mode And Fan Selection
Troubleshooting Table 14. Cooling setpoint and heating setpoint (continued) Nominal ZTEMP Zone Temperature Resistance 70° F 21.1°C 11.9 K-Ohms 75° F 23.9°C 10.50 K-Ohms 80° F 26.7°C 9.3 K-Ohms 85° F 29.4°C 8.25 K-Ohms 90° F 32.2°C 7.3 K-Ohms The resistance of these potentiometers are measured between the following ZSM terminals. Refer to the chart above for approximate resistances at the given setpoints. -
Page 79: Programmable & Digital Zone Sensor Test
Troubleshooting Note: Measurements should be made from LED common (ZSM terminal 6 to respective LED terminal). Refer to the Zone Sensor Module (ZSM)Terminal Identification table at the beginning of this section. Programmable & Digital Zone Sensor Test Testing serial communication voltage 1. -
Page 80: Electro Mechanical Control
Troubleshooting • 3 Flashes: RA Humidity Sensor • 4 Flashes: RATemp Sensor • 5 Flashes: OA Quality Sensor • 6 Flashes: OA Humidity Sensor • 7 Flashes: OATemp Sensor • 8 Flashes: MATemp Sensor • 9 Flashes: RAM Fault • 10 Flashes: ROM Fault •... -
Page 81: Troubleshooting Procedures For Direct Drive Plenum Fan
Troubleshooting Test 1 Verifying that the economizer actuator (ECA) is functional: 1. Using the “Test Mode” described in the “System Start-Up” section, put the unit into the economizer mode and verify that the economizer actuator (ECA) drives fully open (approximately 90 seconds). 2. - Page 82 Troubleshooting Table 15. Troubleshooting for direct drive plenum fan (continued) Check line to line voltage at pin Voltage should be same as line to line voltage input to unit. 1, 2, and 3 of PPF-IDFP. If voltage is same go to step 4. If not, go to step 3. Verify continuity across fuse Replace fuse if continuity is not present.
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Page 83: Wiring Diagrams
Wiring Diagrams Note: For easier access, published unit wiring diagrams (individual, separate diagrams for unitary product lines) are available via e-Library. For diagrams prior to 2008 please refer to wiring diagram booksT_C-SVE001C-EN orT_C-SVE002C-EN for cooling only units. Drawing Number Description Connection Diagrams 4366-7336 THC(037) (230V) - Page 84 Wiring Diagrams 4366-1030 T(S,H)C(036-060)E(3,4,W), Electromechanical Controls, Belt-Drive IDM 4366-1026 T(S,H)C(036-090)E(3,4,W), ReliaTel Controls, Belt-Drive IDM 4366-1040 T(S,H)C(072,090)E(3,4,W), Electromechanical Controls 4366-1041 TSC(092,102)E(3,4,W), Electromechanical Controls 4366-1044 TSC(092,102)E(3,4,W), ReliaTel Controls 4366-6434 TSC120E(3,4,W), Electromechanical Controls 4366-7433 TSC120E(3,4,W), ReliaTel Controls 4366-6428 THC(092-120)E(3,4), Electromechanical Controls 4366-7426 THC(092-120)E(3,4), ReliaTel Controls RT-SVX22G-EN...
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Page 85: Limited Warranty
Limited Warranty Electric Air Conditioner TCY, TCX, TCC, TCD, TCH, TCM,TCP , TSC and THC (Parts Only) Models Less Than 20 Tons for Residential Use* This limited warranty is extended byTrane to the original purchaser and to any succeeding owner of the real property to which the Combination Electric/ Electric Air Conditioner is originally affixed, and applies to products purchased and retained for use within the U.S.A. -
Page 86: Electric Air Conditioner
Limited Warranty *This limited warranty is for residential usage of this equipment and not applicable when this equipment is used for a commercial application. A commercial use is any application where the end purchaser uses the product for other than personal, family or household purposes. Electric Air Conditioner TCY, TCX, TCC, TCD, TCH, TCK, TCM, TCP , TSC and THC (Parts Only) Models Less Than 20 Tons for Commercial Use*... - Page 88 The manufacturer optimizes the performance of homes and buildings around the world. A business of Ingersoll Rand, the leader in creating and sustaining safe, comfortable and energy efficient environments,the manufacturer offers a broad portfolio of advanced controls and HVAC systems, comprehensive building services, and parts. For more information, visit www.IRCO.com.
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