IR Ingersoll Rand TZC036E Installation and operating instructions

Packaged Rooftop Air Conditioners
Precedent™ with eFlex™
Technology, Electric/Electric
3 to 10 Tons - 60 Hz
Installation, Operation, and Maintenance
April 2020 RT-SVX45F-EN
Model Numbers: TZC036E TZC072F
Model Numbers: TZC048F TZC090F
Model Numbers: TZC060E TZC102F
Model Numbers: TZC120F
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.

RT-SVX45F-EN
Introduction
Read this manual thoroughly before operating or
servicing this unit.
Warnings, Cautions, and Notices
Safety advisories appear throughout this manual as
required. Your personal safety and the proper operation of
this machine depend upon the strict observance of these
precautions.
The three types of advisories are defined as follows:
WARNING Indicates a potentially hazardous
situation which, if not avoided, could
result in death or serious injury.
CAUTIONsIndicates 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 result in
equipment or property-damage only
accidents.
Important Environmental Concerns
Scientific research has shown that certain man-made
chemicals can affect the earth’s naturally occurring
stratospheric ozone layer when released to the
atmosphere. In particular, several ofthe identified
chemicals that may affect the ozone layer are refrigerants
that contain Chlorine, Fluorine and Carbon (CFCs) and
those containing Hydrogen, Chlorine, Fluorine and
Carbon (HCFCs). Not all refrigerants containing these
compounds have the same potential impact to the
environment. Trane advocates the responsible handling
of all refrigerants-including industry replacements for
CFCs and HCFCs such as saturated or unsaturated HFCs
and HCFCs.
Important Responsible Refrigerant
Practices
Trane believes that responsible refrigerant practices are
important to the environment, our customers, and the air
conditioning industry. All technicians who handle
refrigerants must be certified. The Federal 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.
© 2020
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. 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.
WARNING
Personal Protective Equipment (PPE)
Required!
Failure to wear proper PPE for the job being undertaken
could result in death or serious injury. Technicians, in
order to protect themselves from potential electrical,
mechanical, and chemical hazards, MUST follow
precautions in this manual and on the tags, stickers,
and labels, as well as the instructions below:
• Before installing/servicing this unit, technicians
MUST put on all PPE required for the work being
undertaken (Examples; cut resistant gloves/sleeves,
butyl gloves, safety glasses, hard hat/bump cap, fall
protection, electrical PPE and arc flash clothing).
ALWAYS refer to appropriate Safety Data Sheets
(SDS) and OSHA guidelines for proper PPE.
• When working with or around hazardous chemicals,
ALWAYSrefertotheappropriateSDS andOSHA/GHS
(Global Harmonized System of Classification and
Labeling of Chemicals) guidelines for information on
allowable personal exposure levels, proper
respiratory protection and handling instructions.
• If there is a risk of energized electrical contact, arc, or
flash, technicians MUST put on all PPE in accordance
with OSHA, NFPA 70E, or other country-specific
requirements for arc flash protection, PRIOR to
servicing the unit. NEVER PERFORM ANY
SWITCHING, DISCONNECTING, OR VOLTAGE
TESTING WITHOUT PROPER ELECTRICAL PPE AND
ARC FLASH CLOTHING. ENSURE ELECTRICAL
METERS AND EQUIPMENT ARE PROPERLY RATED
FOR INTENDED VOLTAGE.
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.

Introduction
RT-SVX45F-EN 3
Trademarks
All trademarks referenced in this document are the
trademarks of their respective owners.
Revision History
• Update includes addition of 6 to 10 ton eFlex™ models

4RT-SVX45F-EN
Table of Contents
Model Number Descriptions . . . . . . . . . . . . . . 6
Model Number Notes . . . . . . . . . . . . . . . . . . 7
General Information . . . . . . . . . . . . . . . . . . . . . 8
Unit Inspection . . . . . . . . . . . . . . . . . . . . . . . . 8
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Unit Nameplate . . . . . . . . . . . . . . . . . . . . . 8
Compressor Nameplate . . . . . . . . . . . . . . . 8
Microchannel Condenser Barcode ID . . . . 8
Unit Description . . . . . . . . . . . . . . . . . . . . . 8
Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . 13
Precautionary Measures . . . . . . . . . . . . . 13
Dimensions and Weights . . . . . . . . . . . . . . . . 14
Unit Clearances . . . . . . . . . . . . . . . . . . . . . . 14
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Foundation . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Horizontal Units . . . . . . . . . . . . . . . . . . . . 24
Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Downflow . . . . . . . . . . . . . . . . . . . . . . . . . 25
Rigging . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
General Unit Requirements . . . . . . . . . . . . 26
Factory Installed Economizer . . . . . . . . . 27
Temperature Limit Switch Usage for Electric
Heat Units . . . . . . . . . . . . . . . . . . . . . . . . . 27
Horizontal Discharge Conversion . . . . . . . 27
Return Air Smoke Detector . . . . . . . . . . . . . 27
Air-Fi™ Wireless Communication Interface 28
Main Electrical Power Requirements . . . . 29
Electric Heat Requirements . . . . . . . . . . . 29
Low Voltage Wiring (AC & DC) Requirements
29
Condensate Drain Configuration . . . . . . 29
Filter Installation . . . . . . . . . . . . . . . . . . . . 30
Field Installed Power Wiring . . . . . . . . . . . 30
Main Unit Power . . . . . . . . . . . . . . . . . . . . . 30
Standard Wiring . . . . . . . . . . . . . . . . . . . . 30
Optional TBUE Wiring (Through the Base
Electrical Option) . . . . . . . . . . . . . . . . . . . 31
Field Installed Control Wiring . . . . . . . . . 31
Control Power Transformer . . . . . . . . . . .31
Controls using DC Analog 
Input/Outputs (Standard Low Voltage Multi
conductor Wire) . . . . . . . . . . . . . . . . . . . . .31
Space Temperature Averaging (ReliaTel™
only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Pre-Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Voltage Imbalance . . . . . . . . . . . . . . . . . . . . .36
Electrical Phasing (Three Phase Motors) . .36
Compressor Crankcase Heaters . . . . . . . .37
ReliaTel™ Controls . . . . . . . . . . . . . . . . . .37
Test Modes . . . . . . . . . . . . . . . . . . . . . . . . .38
Unit Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Verifying Proper Air Flow . . . . . . . . . . . . . . .39
Sequence of Operation . . . . . . . . . . . . . . .39
Return Air Smoke Detector . . . . . . . . . . . .40
Economizer Startup . . . . . . . . . . . . . . . . . .40
Compressor Startup . . . . . . . . . . . . . . . . . .41
Dip Switch Settings . . . . . . . . . . . . . . . . . .41
Final System Setup . . . . . . . . . . . . . . . . . .42
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Monthly Maintenance . . . . . . . . . . . . . . . . . .43
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Return Air Smoke Detector Maintenance 43
Cooling Season . . . . . . . . . . . . . . . . . . . . .43
Heating Season . . . . . . . . . . . . . . . . . . . . .43
Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . .43
Microchannel (MCHE) Coils . . . . . . . . . . .44
Round Tube Plate Fin (RTPF) Coils . . . . . .44
Annual Maintenance . . . . . . . . . . . . . . . . . . .45
Final Process . . . . . . . . . . . . . . . . . . . . . . . . . .45
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . .46
ReliaTel™ Control . . . . . . . . . . . . . . . . . . . . .46
System Status Checkout Procedure . . . . . .46
Method 1 . . . . . . . . . . . . . . . . . . . . . . . . . . .46
System failure . . . . . . . . . . . . . . . . . . . . . .47
Cooling Failure . . . . . . . . . . . . . . . . . . . . . .47
Service Failure . . . . . . . . . . . . . . . . . . . . . .47
Simultaneous Heat and Cool Failure . . . .47

Table of Contents
RT-SVX45F-EN 5
Resetting Cooling and Ignition Lockouts 47
Zone Temperature Sensor (ZTS) Service Indi-
cator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Clogged Filter Switch . . . . . . . . . . . . . . . . 48
Fan Failure Switch . . . . . . . . . . . . . . . . . . 48
Condensate Overflow Switch . . . . . . . . . 48
Zone Temperature Sensor (ZTS) Test . . 48
Relative Humidity Sensor Test . . . . . . . . 48
Programmable & Digital Zone 
Sensor Test . . . . . . . . . . . . . . . . . . . . . . . . 49
ReliaTel™ Refrigeration Module (RTRM) De-
fault Chart . . . . . . . . . . . . . . . . . . . . . . . . . 49
Unit Operation without a Zone Sensor . . 49
Unit Economizer Control (ECA) Trouble-
shooting . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Compressor Inverter Drive . . . . . . . . . . . 51
Unit Wiring Diagrams Numbers . . . . . . . . . . 52
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . 53
Electric Air Conditioner . . . . . . . . . . . . . . . . 53
TZC (Parts Only) . . . . . . . . . . . . . . . . . . . . 53
Models Less Than 20 Tons for Commercial
Use* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53