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RT-SVX50J-EN

43

Wiring Diagrams

N

No

otte

e:: Wiring diagrams can be accessed via e-Library

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order number search field or by contacting
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Table 21.

Wiring diagrams

Type of Airflow

Schematic

Type

Voltage

Diagram

Number

Description

Constant Volume

Power

208-575

1213-3649

Schematic, PWR-EM-CO CV

Control

208-575

1213-2968

EBC180-300, 60Hz, Cooling only / Electric Heat

Multi-Speed Fans

Power

208-575

1213-3652

Schematic, PWR-EM-CO VFD

Control

208-575

1213-2970

EBC180-300, 60Hz, Cooling only / Electric Heat w/VFD

All

Device Location

208-575

1213-2728

EBC180-300, 60Hz, CV/VFD/Electric Heat

Summary of Contents for Foundation EBC180

Page 1: ...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 t...

Page 2: ...r p pr ro op pe er r P PP PE E f fo or r t th he e j jo ob b b be ei in ng g u un nd de er rt ta ak ke en n c co ou ul ld d r re es su ul lt t i in n d de ea at th h o or r s se er ri io ou us s i in...

Page 3: ...ma ay y a af ff fe ec ct t t th he e w wa at te er r t ti ig gh ht t i in nt te eg gr ri it ty y o of f t th he e u un ni it t a an nd d l le ea ad d t to o w wa at te er r l le ea ak ks s i in nt to...

Page 4: ...5 Verifying Proper Air Flow Units with Belt Drive Indoor Fan 25 Electromechanical Controls Test Procedure 25 Start Up 26 Electromechanical Controls Sequence Of Operation 26 Cooling without an Economiz...

Page 5: ...tch 37 Cooling Season 37 Heating Season 38 Coil Cleaning 38 Troubleshooting 41 Standard Troubleshooting 41 Failures 41 Low Leak Economizer LLE Troubleshooting 41 Resetting Cooling and Heating Lockouts...

Page 6: ...omizer Dry Bulb w o Barometric Relief L Downflow Low Leak Economizer Reference Enthalpy w o Barometric Relief N Downflow Low Leak Economizer Comparative Enthalpy w o Barometric Relief Digit 15 Supply...

Page 7: ...tr ra at ti io on ns s r re eq qu ui ir ri in ng g a ad dd di it ti io on na al l r re es sp pi ir ra at to or ry y p pr ro ot te ec ct ti io on n U Us se e t th he e a ap pp pr ro op pr ri ia at te...

Page 8: ...relay energizes and opens the 24 Vac control circuit disabling the unit A delay timer prevents the unit from starting for 3 minutes Phase Monitor The Phase Monitor is a three phase line monitor module...

Page 9: ...he CO2 SPAN to 1600 ppm in the ADVANCED SETUP menu Occupancy Sensor A customer supplied occupancy sensor can also be added to provide damper control based on occupied unoccupied conditions Low Leak Ec...

Page 10: ...zer airflows or recirculation of hot condenser air Figure 1 Typical installation clearance for single and multiple unit applications NOTES 1 FOR HORIZONTAL DISCHARGE UNIT THIS MEASUREMENT IS REDUCED T...

Page 11: ...ONDENSATE DRAIN CONNECTION Figure 3 Cooling with optional electrical heat front and side views electric electric NOTES 1 THROUGH THE BASE ELECTRICAL IS NOT STANDARD ON ALL UNITS 2 VERIFY WEIGHT CONNEC...

Page 12: ...DIMENSION WITH INSTALLER DOCUMENTS BEFORE INSTALLATION THROUGH THE BASE ELECTRICAL RETURN SUPPLY 64 9 16 71 15 16 14 15 16 7 7 16 7 3 8 123 1 8 36 1 16 6 15 16 6 13 16 68 9 16 Figure 5 Cooling with op...

Page 13: ...51 MM 69 1 2 1765 MM Figure 7 Cooling with optional electrical heat downflow duct connections field fabricated 1 25 4 MM CURB FLANGE LONG SIDES 14 1 16 357 MM 7 7 16 189 MM 73 7 16 1865 MM 1 25 MM 19...

Page 14: ...nal electric heat barometric relief and economizer NOTES 1 VERIFY WEIGHT CONNECTION AND ALL DIMENSION WITH INSTALLER DOCUMENTS BEFORE INSTALLATION 2 BAROMETRIC RELIEF IS FOR USE WITH A DOWNFLOW ECONOM...

Page 15: ...manual damper NOTE VERIFY WEIGHT CONNECTION AND ALL DIMENSION WITH INSTALLER DOCUMENTS BEFORE INSTALLATION BACK VIEW OF UNIT LEFT VIEW OF UNIT FAN MANUAL DAMPER HOOD 123 1 8 18 1 4 26 7 8 24 7 8 12 1...

Page 16: ...a as s n ne ec ce es ss sa ar ry y f fo or r e ev ve en n u un ni it t l li if ft t W WA AR RN NI IN NG G I Im mp pr ro op pe er r U Un ni it t L Li if ft t F Fa ai il lu ur re e t to o p pr ro op pe...

Page 17: ...RT SVX50J EN 17 Figure 12 Rigging and center of gravity data CENTER OF GRAVITY LENGTH CENTER OF GRAVITY WIDTH W We ei ig gh ht ts s...

Page 18: ...tion the unit and the curb must be level 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 struct...

Page 19: ...ermostat with or without switching subbase Connect properly sized control wiring to the proper termination points between the zone thermostat and the unit control panel Condensate Drain Configuration...

Page 20: ...ce must be protected from over current and short circuit conditions in accordance with NEC requirements Protection devices must be sized according to the electrical data on the nameplate If the unit i...

Page 21: ...t does not exceed three 3 ohms conductor for the length of the run N No ot te e Resistance in excess of 3 ohms per conductor could cause component failure due to insufficient AC voltage supply 3 Be su...

Page 22: ...ct ts s b be ef fo or re e s se er rv vi ic ci in ng g F Fo ol ll lo ow w p pr ro op pe er r l lo oc ck ko ou ut t t ta ag go ou ut t p pr ro oc ce ed du ur re es s t to o e en ns su ur re e t th he...

Page 23: ...ings need lubricating refer to the maintenance section of this manual for instructions Verify that a condensate trap is installed and the piping is properly sized and pitched Verify that the correct s...

Page 24: ...of the factory installed disconnect switch Connect the power conductors to the lugs provided Connect the ground wire to the unit ground lug N No ot te e Wire size for the length of run should be dete...

Page 25: ...ol ECA if applicable Electromechanical Controls Test Procedure See unit schematic for correct wire numbers F Fa an n T Te es st t a an nd d M Mi in ni im mu um m V Ve en nt ti il la at ti io on n Conn...

Page 26: ...tside air dry bulb temperature Table 3 p 26 lists the selectable dry bulb values by potentiometer setting Table 3 Potentiometer settings Potentiometer Setting Dry Bulb Enthalpy A 27 Btu lb 63 kJ kg 73...

Page 27: ...the trip point the COF relay energizes and opens the 24 Vac control circuit which disables the unit Once the 24 Vac control circuit is opened a delay timer will prevent unit start up for three minutes...

Page 28: ...tor is a 3 phase line monitor module that protects against phase loss phase reversal and phase unbalance It is intended to protect compressors from reverse rotation It has an operating input voltage r...

Page 29: ...to Full Open On On High 24 v On 0 v Off a VENTMIN to Full Open Closed to Full Open Above CO2 set No Off Off High 0 v Off 0 v Off VENTMIN to VENTMAX Closed On Off High 24 v On 0 v Off VENTMIN to VENTMA...

Page 30: ...LY in Advanced setup menu can turn on 2nd stage of mechanical cooling Y2 O after the delay if the call for Y1 I and Y2 I have not been satisfied Table 9 Dry bulb operation no DCV CO2 sensor 2 speed fa...

Page 31: ...satisfied b With 2SP FAN DELAY Advanced Setup Menu when in the economizing mode there is a delay for the high speed fan to try to satisfy the call for second stage cooling by turning on the fan to hi...

Page 32: ...alpy boundaries parameters ES1 through ES5 Enth Curve Temp dry Bulb F Temp dewpoint F Enthalpy btu lb da Point P1 Point P2 Temp F Humid RH Temp F Humid RH ES1 80 0 60 0 28 0 80 0 36 8 66 3 80 1 ES2 75...

Page 33: ...r temperature discharge limit opens the compressor on the affected circuit is turned off Coil Frost Protection The Frostat control monitors the evaporator coil temperature to prevent the evaporator fr...

Page 34: ...pressure should rise If a scroll compressor is rotating backwards it will not pump and a loud rattling sound can be observed b If the electrical phasing is correct before condemning a compressor inter...

Page 35: ...nel if applicable for proper unoccupied operation Refer to the programming instructions for the specific panel Verify that the Remote panel System selection switch Fan selection switch and Zone Temper...

Page 36: ...w belts do not stretch them over the sheaves Loosen the belts using the belt tension adjustment bolts on the motor mounting base Once the new belts are installed using a Browning or Gates tension gaug...

Page 37: ...er ri io ou us s i in nj ju ur ry y D Di is sc co on nn ne ec ct t a al ll l e el le ec ct tr ri ic c p po ow we er r i in nc cl lu ud di in ng g r re em mo ot te e d di is sc co on nn ne ec ct ts s...

Page 38: ...ch circuit superheat and subcooling each circuit Record this data on an operator s maintenance log like the one shown in Sample maintenance log table in Final Process Section If the operating pressure...

Page 39: ...thin walls of the MCHE coils the traditional field maintenance method recommended for Round Tube Plate Fin RTPF coils does not apply to microchannel coils Moreover chemical cleaners are a risk factor...

Page 40: ...id Press Psig kPa Super heat F C Sub cool F C Compr Oil Level Suct Press Psig kPa Disch Press Psig kPa Liquid Press Psig kPa Super heat F C Sub cool F C ok low ok low ok low ok low ok low ok low ok lo...

Page 41: ...ic ca al l c co om mp po on ne en nt ts s p pe er rf fo or rm m t th he es se e t ta as sk ks s Standard Troubleshooting Failures Cooling Failure 1 Cooling and heating set points slide pot on the the...

Page 42: ...the Mode selection switch at the thermostat 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...

Page 43: ...agrams Type of Airflow Schematic Type Voltage Diagram Number Description Constant Volume Power 208 575 1213 3649 Schematic PWR EM CO CV Control 208 575 1213 2968 EBC180 300 60Hz Cooling only Electric...

Page 44: ...r s obligations 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 fo...

Page 45: ...RT SVX50J EN 45 N No ot te es s...

Page 46: ...46 RT SVX50J EN N No ot te es s...

Page 47: ...RT SVX50J EN 47 N No ot te es s...

Page 48: ...please 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...

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