Trane Precedent THC036E Installation And Maintenance Manual Download Page 1 | Manualshive

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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. 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.

Packaged Rooftop Air Conditioners
Precedent™- Electric/Electric

3 – 10 Tons – 60 Hz

July 2012

RT-SVX22J-EN

Installation, Operation,
and Maintenance

Model Numbers

TSC036E - TSC060E

THC036E - THC060E

TSC072F - TSC120F

THC092E - THC120E
THC048F - THC092F

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Summary of Contents for Precedent THC036E

Page 1: ...ted 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 th...

Page 2: ...r responsible management of refrigerants Know the applicable laws and follow them Revision Summary RT SVX22J EN 18 July 2012 MERV 8 filter with filter removal tool Stainless steel drain pan condensate...

Page 3: ...Horizontal Discharge Conversion 3 Through 5 Ton Units 25 Horizontal Discharge Conversion 6 Through 10 Ton Units 25 TCO A Instructions 26 Return Air Smoke Detector 27 Main Electrical Power Requirements...

Page 4: ...ogged Filter Switch 55 Fan Failure Switch 55 Condensate Overflow Switch 55 Zone Temperature Sensor ZTS Test 55 Test 1 Zone Temperature Thermistor ZTEMP 55 Test 2 Cooling Set Point CSP and Heating Set...

Page 5: ...with Hail Guard Digit 18 Through the Base Provisions 0 No Through the Base Provisions A Through the Base Electric8 Digit 19 Disconnect Circuit Breaker three phase only 0 No Disconnect No Circuit Brea...

Page 6: ...s are standard when ordering Novar Controls 15 This option is used when ordering Novar Controls 16 Not available with high temperature duct sensor accessory 17 Digit 15 2 18 Novar Sensor utilized with...

Page 7: ...al characteristics refrigerant charge as well as other pertinent unit data Compressor Nameplate The nameplate for the compressors are located on the side of the compressor Microchannel Condenser Barco...

Page 8: ...e following controls are available from the factory for field installation Supply Fan Failure Input Optional The Fan Failure Switch can be connected to sense indoor fan operation FFS Fan Failure Switc...

Page 9: ...rcuit is turned off immediately The compressor will restart when the HPC closes Power Exhaust Control Optional ReliaTel Control The power exhaust fan is started whenever the position of the economizer...

Page 10: ...SENS074 This electronic sensor features single setpoint capability and timed override with override cancellation It is used with a Trane Integrated Comfort building management system Remote Zone Senso...

Page 11: ...s will prevent the smoke detectors from performing its design function Airflow through the unit is affected by the amount of dirt and debris accumulated on the indoor coil and filters To insure that a...

Page 12: ...cataloged unit capacity and peak operating efficiency Providing less than the recommended clearances may result in condenser coil starvation short circuiting of exhaust and economizer airflows or rec...

Page 13: ...rd 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 7 4...

Page 14: ...andard efficiency 3 ton high efficiency unit clearance and roof opening Note All dimensions are in inches millimeters CLEARANCE 36 914 MM Figure 5 6 7 single ton standard efficiency 4 5 ton high effic...

Page 15: ...andard efficiency 4 5 ton high efficiency roof curb Note All dimensions are in inches millimeters 2130 MM 356 MM Figure 7 6 7 single ton standard efficiency 4 5 ton high efficiency unit clearance and...

Page 16: ...standard efficiency 6 7 microchannel ton high efficiency Note All dimensions are in inches millimeters Figure 9 7 ton dual 10 ton standard efficiency 6 7 microchannel ton high efficiency roof curb No...

Page 17: ...n dual 10 ton standard efficiency 6 7 microchannel ton high efficiency unit clearance and roof opening Note All dimensions are in inches millimeters Figure 11 7 dehumidification 10 ton high efficiency...

Page 18: ...1534 MM 59 7 8 1521 MM 14 356 MM 2 51 MM 56 3 8 1432 MM 34 3 8 873 MM 34 3 8 873 MM 18 1 2 470 MM 18 1 2 470 MM 1 25 MM 1 25 MM 1 25 MM 6 5 8 168 MM 80 1 2 2045 MM CLEARANCE 18 457 MM FOR HORIZONTAL...

Page 19: ...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 wo...

Page 20: ...HC048F 737 642 208 177 128 130 44 22 5 THC060E THC067E 841 746 241 193 139 173 39 22 5 THC060F 774 679 219 189 135 137 43 21 6 THC072F 883 740 228 219 155 138 47 21 7 THC092E 1445 1228 347 330 269 283...

Page 21: ...ork Figure 16 p 21 to Figure 18 p 22 illustrate the supply and return air openings as viewed from the rear of the unit Economizer 26 36 36 36 36 Electric Heaters 15 30 30 40 40 Hinged Doors 10 12 12 1...

Page 22: ...ency units Horizontal supply return air openings Figure 19 3 5 ton standard efficiency units 3 ton high efficiency units Downflow supply return air openings w through the base utilities Supply Return...

Page 23: ...e To assure proper condensate flow during operation the unit and curb must be level If the unit is elevated a field constructed catwalk around the unit is strongly recommended to provide easy access f...

Page 24: ...make any necessary rigging adjustments 6 Lift the unit enough to allow the removal of base fork pocket protection components as shown in the following figures When 7 dehumidification 10 ton high effi...

Page 25: ...Units Note 3 5 ton units supply cover to supply opening and return cover to return opening Supplies Needed by Installer for Conversion 3 oz tube of High Temperature RTV sealant 500 F 260 C Similar to...

Page 26: ...d electric heater package or is equipped with a factory installed electric heater model that does not correspond to any in this table skip steps 1 through 3 and go on to next step in the installation...

Page 27: ...for screw locations 3 Lift the tube and bracket from the downflow duct opening Rotate the tube and bracket assembly 180 degrees ensuring that the holes on the copper sensing tube face away from the un...

Page 28: ...tighten any loose connections Check electric heat circuits for continuity Low Voltage Wiring AC DC Requirements Install the zone thermostat with or without switching subbase Connect properly sized co...

Page 29: ...the guidelines in Figure 35 p 29 A condensate drain line must be connected to the P Trap Pitch the drain lines at least 1 2 inch for every 10 feet of horizontal run to assure proper condensate flow D...

Page 30: ...t plate on all 4 sides after installation to prevent air leakage from the building entering the electrical enclosures Note Seal between wiring and conduit with Black Gasket or weather proof sealer to...

Page 31: ...he DC binary output devices and the system components utilizing a DC analog input output signal to the unit Note Resistance in excess of 2 5 ohms per conductor can cause deviations in the accuracy of...

Page 32: ...9 Typical field wiring diagrams for Electro Mechanical Thermostat Figure 40 ReliaTel options module RTRM 100 P Red 173 C Brn 101MM Blu 175 D Blk 174 B Brn 176 D Yellow 184 A Yellow Figure 41 ReliaTel...

Page 33: ...control customer low voltage routing all units except 8 10 ton high efficiency and 7 ton high efficiency with hot gas reheat dehumidification Figure 44 ReliaTel control customer low voltage routing a...

Page 34: ...T SVX22J EN Figure 45 ReliaTel without TBUE control customer wire routing 7 dehumidification 10 ton high efficiency Figure 46 ReliaTel with TBUE control customer wire routing 7 dehumidification 10 ton...

Page 35: ...35 Figure 47 Electromechanical without TBUE control customer wire routing 7 dehumidification 10 ton high efficiency Figure 48 Electromechanical with TBUE control customer wire routing 7 dehumidificati...

Page 36: ...ote sensors in a series parallel circuit Using the BAYSENS016 or BAYSENS077 at least four sensors are required to accomplish space temperature averaging Example 1 illustrates two series circuits with...

Page 37: ...Installation RT SVX22J EN 37 Figure 51 Examples...

Page 38: ...22J EN Figure 52 Typical field wiring diagrams for optional controls ReliaTel only BA YSENS075 BA YSENS075 BA YSENS119 BA YSENS110 BA YSENS108 BA YSENS106 BAYSENS073 BAYSENS074 BAYSENS075 ASYSTAT669A...

Page 39: ...87 56 K Ohms 5 15 0 74 65 K Ohms 10 12 2 63 80 K Ohms 15 9 4 54 66 K Ohms 20 6 7 46 94 K Ohms 25 3 8 40 40 K Ohms 30 1 1 34 85 K Ohms 35 1 7 30 18 K Ohms 40 4 4 26 22 K Ohms 45 7 2 22 85 K Ohms 50 10...

Page 40: ...equals 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 mot...

Page 41: ...osition Close the main power disconnect switch and the unit mounted disconnect switch if applicable Note Upon closing main power disconnect and the unit mounted disconnect switch or circuit breaker th...

Page 42: ...er 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 Cool...

Page 43: ...is based on desired CFM and may not be actual static pressure drop 3 Add the total accessory static pressure drop step 2 to the duct external static pressure step 1 The sum of these two values repres...

Page 44: ...ms 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 fa...

Page 45: ...peed and repeat steps 1 and 2 To stop the SERVICE TEST turn the main power disconnect switch to the Off position or proceed to the next component start up procedure Units with Constant CFM Direct Driv...

Page 46: ...2 momentarily jump across the Test 1 Test 2 terminals on LTB1 one time to start the Minimum Ventilation Test below Electro Mechanical Control Using the Service Test Guide perform the proper test mode...

Page 47: ...est mode verify that the 3 way valve has shifted to the reheat position and that the supply temperature rises 10 F more than when in cooling mode stage 2 Monitor the suction pressure for 15 minutes Th...

Page 48: ...g perform these final checks before leaving the unit Program the Night Setback NSB panel if applicable for proper unoccupied operation Refer to the programming instructions for the specific panel Veri...

Page 49: ...listed in Table 12 p 49 If the force reading is outside the range readjust the belt tension Note Actual belt deflection force must not exceed the maximum force value shown in Figure 53 p 49 7 Recheck...

Page 50: ...sure that all retaining screws are reinstalled in the unit access panels once these checks are complete With the unit running check and record the ambient temperature compressor suction and discharge...

Page 51: ...e of the coil Allow the cleaning solution to stand on the coil for five minutes 7 Rinse both sides of the coil with cool clean water 8 Inspect both sides of the coil if it still appears to be dirty re...

Page 52: ...m unit control panel Connections Schematics Table 13 Sample maintenance log Refrigerant Circuit 1 Refrigerant Circuit 2 Date Current Ambient Temp F C Compr Oil Level Suct Press Psig kPa Disch Press Ps...

Page 53: ...the sequence of operations for each mode to assist in verifying proper operation Make the necessary repairs and proceed to Step 7 and Step 8 7 If no abnormal operating conditions appear in the test m...

Page 54: ...voltage between terminals J6 8 J6 6 Cool Operating approximately 32 VDC Cool Off less than 1 VDC approximately 0 75 VDC Cooling Failure voltage alternates between 32 VDC 0 75 VDC Service Failure Measu...

Page 55: ...s Cool SP Terminals 2 and 3 Range 100 to 900 Ohms approximate Heat SP Terminals 2 and 5 Range 100 to 900 Ohms approximate Test 3 System Mode and Fan Selection The combined resistance of the Mode selec...

Page 56: ...neously The temperature sensing thermistor in the Zone Sensor Module is the only component required for the Default Mode to operate Unit Operation without a Zone Sensor This procedure is for temporary...

Page 57: ...al problem exists from the control transformer Make any necessary repairs see wiring diagrams to troubleshoot 3 If 24 VAC is present adjust the minimum position potentiometer fully clockwise If the ac...

Page 58: ...to step 8 If not turn knob on MMC counter clock wise 1 turn and check voltage again For units with ECM board increase the output voltage by 3 0 VDC and check voltage again If no change in voltage go t...

Page 59: ...4 W Electromechanical Controls 4366 1041 TSC 092 102 F 3 4 W Electromechanical Controls 4366 6434 TSC120F 3 4 W Electromechanical Controls 4366 6428 THC 092 120 E 3 4 Electromechanical Controls Schema...

Page 60: ...460V ReliaTel Controls 4366 7445 TSC120F 575V ReliaTel Controls Electromechanical 230V 4366 4558 T S H C 036 060 E F 1 Phase Electromechanical Controls 4366 5181 THC 036 060 E F 3 Phase Electromechani...

Page 61: ...included This limited warranty does not cover failure of your combination Electric Electric air conditioner if it is damaged while in your possession failure attributable or caused by unreasonable us...

Page 62: ...elated service labor and diagnosis calls are not included Warrantor s obligations and liabilities under this warranty are limited to furnishing F O B Warrantor factory or warehouse at Warrantor design...

Page 63: ......

Page 64: ...vanced controls and HVAC systems comprehensive building services and parts For more information visit www IRCO com The manufacturer has a policy of continuous product and product data improvement and...

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