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Introduction

RT-SVX50C-EN

Overview of Manual

Note:

One copy of this document ships inside the control 
panel of each unit and is customer property. It must 
be retained by the unit’s maintenance personnel.

This booklet describes proper installation, 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.

It is important that periodic maintenance be performed to 
help assure trouble free operation. A maintenance 
schedule is provided at the end of this manual.

Should equipment failure occur, contact a qualified 
service organization with qualified, experienced HVAC 
technicians to properly diagnose and repair this 
equipment.

Copyright

This document and the information in it are the property of 
Trane, and may not be used or reproduced in whole or in 
part without written permission. Trane reserves the right 
to revise this publication at any time, and to make changes 
to its content without obligation to notify any person of 
such revision or change.

Trademarks

All trademarks referenced in this document are the 
trademarks of their respective owners. 

Revision Summary

RT-SVX50B-EN (23 Nov 2015)

Added 380V/60Hz Units.

Updated Model Number Description Section

WARNING

Proper Field Wiring and Grounding 
Required!

All field wiring MUST be performed by qualified 
personnel. Improperly installed and grounded field 
wiring poses FIRE 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 electrical codes. Failure to 
follow code could result in death or serious injury.

NOTICE: 

Water Damage! 

Non-factory penetrations through the base of this unit 
are not allowed. Any penetration in the base of the unit 
may affect the water tight integrity of the unit and lead 
to water leaks into the conditioned space. Failure to 
follow instructions could result in equipment and 
property damage.

Summary of Contents for EAC180A

Page 1: ...ining 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...

Page 2: ...icates a potentially hazardous situation which if not avoided could result in minor or moderate injury It could also be used to alert against unsafe practices NOTICE Indicates a situation that could r...

Page 3: ...without written permission Trane reserves the right to revise this publication at any time and to make changes to its content without obligation to notify any person of such revision or change Tradema...

Page 4: ...1 Unit Disconnect FIYUDC 21 Pre Start 22 Verifying Proper Air Flow Units with Belt Drive Indoor Fan 22 Electromechanical Controls Test Procedure 22 Start Up 23 Standard Economizer Start Up 23 LLE Cont...

Page 5: ...rometric Relief1 4 E A C 1 8 0 A 3 E G A 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 J Low Leak Economizer Dry Bulb w o Barometric Relief4 L Low Leak Economizer Reference Enthalpy w o Barometric Relief4 N Low L...

Page 6: ...temporary heat is provided in the building Isolate all side panel service entrances and base pan openings e g conduit holes S A and R A openings and flue openings from the ambient air until the unit i...

Page 7: ...ed whenever the position of the economizer dampers meets or exceed the power exhaust setpoint when the indoor fan is on The setpoint panel is located in the return air section and is factory set at 25...

Page 8: ...ied status is to use the G input fan is running Connect the G input to the OCC SENSOR wire at customer connections The controller will then operate in the occupied mode every time the indoor fan is ru...

Page 9: ...nimum distances necessary to assure adequate serviceability cataloged unit capacity and peak operating efficiency Providing less than the recommended clearances may result in condenser coil starvation...

Page 10: ...Dimensional Data 10 RT SVX50C EN Figure 2 Cooling with optional electrical heat units overview Figure 3 Cooling with optional electrical units front side views 15 25 tons standard efficiency...

Page 11: ...al Data RT SVX50C EN 11 Figure 4 Cooling with optional electrical heat units plan view 15 25 tons standard efficiency Figure 5 Foundation units back view horizontal configuration 15 25 tons standard e...

Page 12: ...ndard efficiency Figure 7 Downflow duct connections field fabricated 15 25 tons standard efficiency 9 1 25 4 MM CURB FLANGE LONG SIDES SHORT SIDES Notes Duct flanges mount 7 7 16 down inside the curb...

Page 13: ...re 8 Downflow unit clearance 15 25 tons standard efficiency Figure 9 Barometric relief and economizer 15 25 tons standard efficiency MOTORIZED DAMPER BAROMETRIC RELIEF IS FOR USE WITH A DOWNFLOW ECONO...

Page 14: ...Dimensional Data 14 RT SVX50C EN Figure 10 Manual damper 15 25 tons standard efficiency...

Page 15: ...438 357 416 54 37 25 EAC300A 2208 1888 664 457 345 422 53 35 a Weights are approximate Horizontal and downflow unit and corner weights may vary slightly b Weights do not include additional factory or...

Page 16: ...s gaskets must be installed around the curb perimeter flange and the supply and return air opening flanges General Unit Requirements The checklist listed below is a summary of the steps required to su...

Page 17: ...provided in the unit This is a slip fit joint no threads and can be sealed using PVC Cement or other suitable adhesive A condensate trap must be installed at the unit due to the drain connection bein...

Page 18: ...on selected would be a factory mounted nonfused disconnect switch UDC Provide proper grounding for the unit in accordance with local and national codes Control Power Transformer The 24 volt control po...

Page 19: ...llows Voltage Imbalance AV Average Voltage V1 V2 V3 Line Voltage Readings VD Line Voltage reading that deviates the farthest from the average voltage Example If the voltage readings of the supply powe...

Page 20: ...to position Close the main power disconnect switch and the unit mounted disconnect switch if applicable Checklist Use the following checklist in conjunction with the general checklist General Unit Req...

Page 21: ...y found on the unit nameplate and the N E C 4 Route low voltage class II control wiring through hole in base of unit but not through high voltage conduit Feedcontrolwiringthroughbushingprovided on sid...

Page 22: ...using the setpoint potentiometer located on the Economizer Control ECA if applicable Electromechanical Controls Test Procedure See unit schematic for correct wire numbers Fan Test and Minimum Ventila...

Page 23: ...after powered If OA sensor or Sylk Bus device sensor or actuator is disconnected during the set up mode the JADE will not alarm that failure The MA sensor is a system critical sensor if the MA sensor...

Page 24: ...er disconnect switch to the Off position or proceed to the next component start up procedure Remove electro mechanical test mode connections Final System Set Up After completing all of the pre start a...

Page 25: ...s number represents the force in pounds required to give the needed deflection 6 Compare the force scale reading Step 5 with the appropriate force value listed in Table 5 p 25 If the force reading is...

Page 26: ...data on an operator s maintenance log like the one shown in Table 6 p 27 If the operating pressures indicate a refrigerant shortage measure the system superheat For guidelines refer to Compressor Sta...

Page 27: ...zzle and the microchannel coil is 1 3 Final Process For future reference you may find it helpful to record the unit data requested below in the blanks provided 1 Complete Unit Model Number ___________...

Page 28: ...lt Codes Low Leak Economizer Alarms CO2 Sensor Error SYS Alarm Actuator Undervoltage Actuator Overvoltage Actuator Stalled The FDD system shall detect the following faults Air temperature sensor failu...

Page 29: ...hen the condensate overflow switch is closed a drain pan overflow condition is indicated and it will shut unit operations down Unit Economizer Control ECA Verify Economizer Status by Economizer Actuat...

Page 30: ...08 575 2313 2239 EAC180 300 EAD180 300 60Hz Cooling only Electric Heat Control Box Connection 208 230 380 a 2313 2230 EAC180 300 EAD180 300 60Hz Cooling only Electric Heat 460 575 2313 2234 EAC180 300...

Page 31: ...ervice GW 602 4800 This warranty is for commercial usage of said equipment and not applicable when the equipment is used for a residential application Commercial use is any application where the end p...

Page 32: ...ifications without notice We are committed to using environmentally conscious print practices that reduce waste 2015 Trane All rights reserved RT SVX50C EN 23 Nov 2015 Supersedes RT SVX50B EN 30 Dec 2...

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