Trane Foundation GCC 090-150 Installation, Operation And Maintenance Manual Download Page 18 | Manualshive

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18

RT-SVX069D-EN

Table 2.

Electromechanical thermostat 24V AC conductors with electromechanical unit (continued)

Distance from Unit to Control

Recommended Wire Size

126 - 200 feet

14 gauge

38.4 - 60.9 m

2.0 mm^2

Figure 11.

Conventional thermostat field wiring diagram

R

W1

Y1

Y2

W2

G

C

Installation

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Summary of Contents for Foundation GCC 090-150

Page 1: ...mproperly 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 November 2022 RT SVX069D EN Installation Operation and Maintenance Packaged Rooftop Air Conditioners Foundation Cooling and Gas Electric 7 5 t...

Page 2: ...eral 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 In addition some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants Know the applicable laws and follow them WARNING Proper Field ...

Page 3: ...here If adding or removing refrigerant is required the service technician must comply with all federal state and local laws This booklet describes the proper installation startup operation and maintenance procedures for air cooled systems By carefully reviewing the information within this manual and following the instructions the risk of improper operation and or component damage will be minimized...

Page 4: ...romechanical Controls Sequence Of Operation 24 Cooling without an Economizer 24 Evaporator Fan Operation for Gas Units Standard Economizer 24 Evaporator Fan Operation for Cooling Only Units Standard Economizer 24 Economizer Set Up Standard Economizer 24 Cooling with an Economizer Standard Economizer 24 Heating Operation Units with Electric Heat Standard Economizer 24 Heating Operation for Gas Unit...

Page 5: ...RT SVX069D EN 5 Exclusions and Limitations 37 Table of Contents ...

Page 6: ...ainless Steel HX Low Y Gas Heat Stainless Steel HX Medium Z Gas Heat Stainless Steel HX High Digit 11 Minor Design Sequence A Rev A Digit 12 13 Service Sequence 00 None Digit 14 Fresh Air Selection 0 No Fresh Air Options Digit 15 Supply Fan Drive Type Motor 0 Standard Motor 7 Multi Speed Standard Motor 9 Multi Speed Oversized Motor Digit 16 Unit M Medium Foundation Digit 17 Condenser Coil Protecti...

Page 7: ...re trouble free operation A maintenance schedule is provided at the end of this manual Unit Inspection To protect against loss due to damage incurred in transit perform inspection immediately upon receipt of the unit Check carefully for shipping damage If any damage is found report it immediately and file a claim against the transportation company Exterior Inspection If the job site inspection rev...

Page 8: ...orates the Evaporator Frost Control mounted in the indoor coil and can be activated by closing a field supplied contact installed in parallel with the Frost Control If this circuit is open before the compressor is started the compressor will not be allowed to operate Anytime this circuit is opened for 5 continuous seconds during compressor operation the compressor for that circuit is immediately t...

Page 9: ...Typical installation clearance for single and multiple unit applications in inches NOTE 1 4 0 1 6 Minimum clearance 3 0 Side condensate drain is used 1 6 Recommended service clearance 4 0 Unit disconnect is mounted on panel SINGLE UNIT END TO END NOTE 2 3 SIDE BY SIDE NOTE 2 5 0 WITH ECONOMIZER 3 0 WITHOUT ECONOMIZER NOTES 1 FOR HORIZONTAL DISCHARGE UNIT THIS MEASURE IS REDUCED TO 1 6 TO MINIMIZE ...

Page 10: ... CONDENSATE DRAIN CONNECTION Figure 3 Gas electric units front and side views in inches 88 7 16 23 3 4 48 5 16 6 5 16 30 3 16 14 7 16 2 3 4 2 3 4 44 3 16 48 3 4 7 3 4 7 3 4 23 3 4 58 7 8 7 3 4 9 7 8 2 5 16 Ø2 Ø1 3 8 Ø2 Ø1 3 8 Ø7 8 7 3 4 37 15 16 GBC UNIT ONLY Dimensional Data ...

Page 11: ...TS 2 VERIFY WEIGHT CONNECTION AND ALL DIMENSION WITH INSTALLER DOCUMENTS BEFORE INSTALLATION 29 5 8 88 7 16 12 7 16 25 5 8 3 7 16 14 27 5 16 37 5 8 40 11 16 12 3 8 3 7 16 36 7 16 Figure 5 Foundation units back view horizontal configuration in inches 53 3 16 4 9 16 23 4 15 16 5 5 8 36 7 16 14 12 3 8 27 5 16 RETURN SUPPLY Dimensional Data ...

Page 12: ...TURN 54 9 16 54 9 16 84 13 16 45 1 8 84 13 16 32 1 4 3 000 3 000 19 3 8 15 1 2 15 13 16 3 9 16 1 3 4 14 000 37 15 16 Figure 7 Downflow unit clearance in inches CLEARANCE CLEARANCE CLEARANCE CLEARANCE UNIT OUTLINE 54 5 8 39 11 16 68 48 60 48 Dimensional Data ...

Page 13: ...e weight of the unit Lifting cables chains or slings may not be of the same length Adjust as necessary for even unit lift WARNING Improper Unit Lift Failure to properly lift unit in a LEVEL position could result in unit dropping and possibly crushing operator technician which could result in death or serious injury and equipment or property only damage Test lift unit approximately 24 inches 61 cm ...

Page 14: ...14 RT SVX069D EN Figure 9 Rigging and center of gravity data CENTER OF GRAVITY LENGTH CENTER OF GRAVITY WIDTH Weights ...

Page 15: ...anes or splitters are recommended to minimize air noise due to turbulence and to reduce static pressure When attaching the ductwork to the unit provide a watertight flexible connector at the unit to prevent operating sounds from transmitting through the ductwork All outdoor ductwork between the unit and the structure should be weather proofed after installation is completed Note For sound consider...

Page 16: ... hood 2 Locate the vent hood behind the panel along the base of the unit 3 Install the vent hood on the gas heat panel using the screws removed in Step 1 Make sure it is properly secured to the panel Figure 10 Vent hood installation Condensate Drain Configuration An evaporator condensate drain connection is provided on each unit Refer to Dimensional Data p 9 for the appropriate drain location Note...

Page 17: ...applicable electrical service entrance is illustrated in Dimensional Data p 9 Complete the unit s power wiring connections onto either the main terminal block inside the unit control panel or the electric heat terminal block Refer to the customer connection diagram that shipped with the unit for specific termination points Provide proper grounding for the unit in accordance with local and national...

Page 18: ...hermostat 24V AC conductors with electromechanical unit continued Distance from Unit to Control Recommended Wire Size 126 200 feet 14 gauge 38 4 60 9 m 2 0 mm 2 Figure 11 Conventional thermostat field wiring diagram R W1 Y1 Y2 W2 G C Installation ...

Page 19: ...ged gas heat units have a positive pressure gas valve Never adjust the staged gas pressure valve to a negative pressure b A voltage reading across pens V and V is equatable to the flame sensing current One volt equals one micro amp Table 4 Piping Length of Pipe ft Iron Pipe Size IPS Inches 1 2 Pipe 3 4 Pipe 1 Pipe 1 Pipe 1 Pipe 15 76 176 345 750 1220 30 52 120 241 535 850 45 43 99 199 435 700 60 3...

Page 20: ...ming power supply is phased as A B C Proper electrical supply phasing can be quickly determined and corrected before starting the unit by using an instrument such as an Associated Research Model 45 Phase Sequence Indicator and following the steps below WARNING Hazardous Voltage Failure to disconnect power before servicing could result in death or serious injury Disconnect all electric power includ...

Page 21: ...E and ELECTROCUTION hazards To avoid these hazards you MUST follow requirements for field wiring installation and grounding as described in NEC and your local state national electrical codes Important All phases of this installation must comply with NATIONAL STATE and LOCAL CODES In addition to local codes the installation must comply with National Electric Code ANSI NFPA NO 70 LATEST REVISION 1 F...

Page 22: ...tional electrical codes Important All phases of this installation must comply with NATIONAL STATE and LOCAL CODES In absence of local codes the installation must conform with American National Standard Z223 1a National Fuel Gas Code Latest Revision 1 Field connections are made by first removing the access panel for the heat section on the front of the unit 2 The gas piping assembly ships inside th...

Page 23: ... of Fire or Explosion Failure to follow instructions below could cause a fire or explosion which could result in death or serious injury and equipment damage Never test for gas leaks with an open flame Use a commercially available soap solution made specifically for the detection of leaks to check all connections A fire or explosion may result causing property damage personal injury or loss of lif...

Page 24: ... switch is set to the Auto position the thermostat energizes the indoor fan relay coil F to start the indoor fan motor IDM The fan relay F de energizes after the cooling requirement has been satisfied When the heating cycle is terminated the indoor fan relay F coil is de energized with heater contactors When the thermostat fan selection switch is set to the On position the thermostat keeps the ind...

Page 25: ... flame sensed and no W signal Table 8 Ignition module diagnostics continued Six blinks Flame Rollout Switch open Seven blinks Switch open W1 andW2 swapped Two Speed Indoor Fan Control For units equipped with two speed indoor fan control standard unit operation for cooling and heating will continue and all unit functions will operate normally except for the control of the indoor fan speed All units...

Page 26: ... a scroll compressor is rotating backwards it will not pump and a loud rattling sound can be observed b Once each compressor has started verify that the rotation is correct If wired correctly the suction pressure should drop and the discharge pressure should rise If a scroll compressor is rotating backwards it will not pump and a loud rattling sound can be observed Figure 15 Compressor terminal bo...

Page 27: ...e main power disconnect switch to reset the unit Final System Set Up After completing all of the pre start and startup procedures outlined in the previous sections i e operating the unit in each of its modes through all available stages of cooling and heating perform these final checks before leaving the unit Inspect the unit for misplaced tools hardware and debris Verify that all exterior panels ...

Page 28: ...on as follows 1 To determine the appropriate belt deflection a Measure the center to center shaft distance in inches between the fan and motor sheaves b Divide the distance measured in Step 1a by 64 the resulting value represents the amount of belt deflection that corresponds to the proper belt tension 2 Set the large O ring on the belt tension gauge at the deflection value determined in Step 1b 3...

Page 29: ...e servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized Verify that no power is present with a voltmeter Filters Inspect the return air filters Clean or replace them if necessary Condensate Overflow Switch During maintenance the switch float black ring must be checked to ensure free movement up and down Cooling Season Check the unit s drain pans a...

Page 30: ... insulation Make any necessary repairs Verify that the electric heat system operates properly Coil Cleaning Regular coil maintenance including annual cleaning enhances the unit s operating efficiency by minimizing the following Compressor head pressure and amperage draw Evaporator water carryover Fan brake horsepower Static pressure losses Airflow reduction At least once each year or more often if...

Page 31: ...he face of the coil during cleaning Optimum clearance between the sprayer nozzle and the microchannel coil is 1 3 Final Process For future reference record the unit data below in the blanks provided Table 13 Unit data log Complete Unit Model Number Unit Serial Number Wiring Diagram Numbers from unit control panel schematic s connections Network ID Maintenance ...

Page 32: ...s Psig kPa Disch Press Psig kPa Superheat F C Sub cool F C Compr Oil Level Suct Press Psig kPa Disch Press Psig kPa Superheat F C Sub cool F C ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low Maintenance ...

Page 33: ...rd If 24 Vac is not present check fuse 2 on the mainboard and check transformer TNS1 Proceed to Step 5 if necessary 5 If no failures are indicated use the TEST mode procedures described in the Unit Start Up section or thermostat to start the unit This procedure will allow you to check all of the external controls relays contactors etc and the IGN 6 Test the system through all of the available mode...

Page 34: ...igerant evacuate recharge add filter drier Incorrect voltage Determine cause and correct At compressor terminals voltages must be within 10 of rating plate volts when unit is operating Compressor short cycles Incorrect voltage At compressor terminals voltage must be 10 or nameplate marking when unit is operating Defective overload protector Replace check for correct voltage Refrigerant undercharge...

Page 35: ...ll wiring and wire nut connections Misaligned spark electrodes Check flame ignition and sense electrode positioning Adjust as necessary No gas at main burners Check gas line for air Purge as necessary NOTE After purging gas line of air wait at least 5 minutes for any gas to dissipate before attempting to light unit Check gas valve Inadequate heating Dirty air filter Clean or replace filter as nece...

Page 36: ...ing Diagrams Note Contact technical support for wiring diagrams Table 16 Wiring diagrams Type of Airflow Schematic Type Voltage Description Multi Speed Fans Power and Control 208 230 GCC090 150 60Hz 2 Stage Gas Heat w VFD ...

Page 37: ...s and liabilities under this warranty are limited to furnishing F O B factory or warehouse at the warrantor designated shipping point freight allowed to Buyer s city or port of export for shipments outside the conterminous United States a replacement product or at the option of the warrantor parts for the repair of the product not conforming to this warranty and which have been returned to the war...

Page 38: ...38 RT SVX069D EN Notes ...

Page 39: ...RT SVX069D EN 39 Notes ...

Page 40: ...lease visit trane com or americanstandardair com Trane and American Standard have a policy of continuous product and product data improvement and reserve the right to change design and specifications without notice We are committed to using environmentally conscious print practices RT SVX069D EN 05 Nov 2022 Supersedes RT SVX069C EN October 2021 2022 ...

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