Trane EBC036 Installation and operating instructions

Packaged Rooftop Air Conditioners
Foundation™ Electric/Electric
3 to 5 Tons, 50Hz
Installation, Operation, and Maintenance
June 2020 RT-SVX059D-EN
Model Numbers: EBC036-060
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.

© 2020 RT-SVX059D-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 of the 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 such as HCFCs and HFCs.
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.
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.

WARNING
Follow EHS Policies!
Failure to follow instructions below could result in
death or serious injury.
• All Trane personnel must follow the company’s
Environmental, Health and Safety (EHS) policies
when performing work such as hot work, electrical,
fall protection, lockout/tagout, refrigerant handling,
etc. Where local regulations are more stringent than
these policies, those regulations supersede these
policies.
• Non-Trane personnel should always follow local
regulations.
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.
Introduction
RT-SVX059D-EN 3
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 History
Added ‘Locking Safety Device with Anti-Short Cycle
Timer’ feature.
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.

4RT-SVX059D-EN
Table of Contents
Model Number Description . . . . . . . . . . . . . . . 5
General Information . . . . . . . . . . . . . . . . . . . . . 6
Unit Inspection . . . . . . . . . . . . . . . . . . . . . . . . 6
Precautionary Measures . . . . . . . . . . . . . . . . 6
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Unit Description . . . . . . . . . . . . . . . . . . . . . . . 6
System Input Devices & Functions . . . . . . . 6
Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . 8
Unit Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Rigging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Unit Foundation . . . . . . . . . . . . . . . . . . . . . . 14
General Unit Requirements . . . . . . . . . . . . 14
Main Unit Power . . . . . . . . . . . . . . . . . . . . . 15
Pre Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Verifying Proper Air Flow (Units with Belt
Drive Indoor Fan) . . . . . . . . . . . . . . . . . . . . . 19
Electromechanical Controls 
Test Procedure . . . . . . . . . . . . . . . . . . . . . . . 19
Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Compressor Start-Up . . . . . . . . . . . . . . . . . 20
Heating Start-Up . . . . . . . . . . . . . . . . . . . . . 20
Final System Set Up . . . . . . . . . . . . . . . . . . 20
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Fan Belt Adjustment—Belt Drive Units . . 21
Monthly Maintenance . . . . . . . . . . . . . . . . . 22
Final Process . . . . . . . . . . . . . . . . . . . . . . . . . 23
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . 24
Standard Troubleshooting . . . . . . . . . . . . . 24
Resetting Cooling and Heating Lockouts . 24
Condensate Overflow Switch . . . . . . . . . . . 24
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . 25
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Central Air Conditioner . . . . . . . . . . . . . . . . 26

E B C 0 3 6 A D E A A 0 0
1 2 3 4 5 6 7 8 9 10 11 12 13
RT-SVX059D-EN 5
Model Number Description
Digit 1 — Unit Type
E = Packaged Cooling, Electric Heat
Digit 2 — Efficiency
B = ASHRAE 90.1 - 2016
Digit 3 — Airflow Configuration
C = Convertible
Digit 4, 5, 6 — Nominal Gross
Cooling Capacity (MBh)
036 = 3 Tons
048 = 4 Tons
060 = 5 Tons
Digit 7 — Major Design
Sequence
A
Digit 8 — Voltage Selection
D = 380-415/50/3
Digit 9 — Unit Controls
E = Electromechanical
Digit 10 — Heating Capacity
0 = No Heat
A = 4.7 kW Electric Heat
B = 6.3 kW Electric Heat
C = 9 kW Electric Heat
D = 12.5 kW Electric Heat
E = 15.7 kW Electric Heat
Digit 11 — Minor Design
Sequence
Digit 12, 13 — Service Sequence
00 = None
Digit 14 — Fresh Air Selection1
0 = No Fresh Air
A = Manual Outside Air Damper
0-50%
Digit 15 — Supply Fan/Drive
Type/Motor
0=StandardMotor
1=OversizedMotor
Digit 16 — Not Used
Digit 17 — Condenser Coil
Protection
0 = Standard Coil
4 = CompleteCoat™ Condenser Coil
Digit 18 — Through The Base
Provisions
0 = No Through The Base Provisions
Digit 19 — Disconnect Switch
0 = No Disconnect
Digit 20— Not Used
Digit 21— Not Used
Digit 22— Not Used
Digit 23— Not Used
Digit 24— Not Used
Digit 25 - System Monitoring
Controls
0 = No Monitoring Controls
A = Condensate Drain Pan Overflow
Switch
Model Number Notes
1. All Factory Installed Options are
Built-to-Order. Check order
services for estimated production
cycle.
Model Number Description

6RT-SVX059D-EN
General Information
Unit Inspection
As soon as the unit arrives at the job site:
• Verify that the nameplate data matches the data on the
sales order and bill of lading (including electrical data).
• Verify that the power supply complies with the unit
nameplate specifications.
• Visually inspect the exterior of the unit, including the
roof, for signs of shipping damage.
• Visually inspect the internal components for shipping
damage as soon as possible after delivery and before
it is stored. Do not walk on the sheet metal base pans.
• If concealed damage is discovered, notify the carrier’s
terminal of damage immediately by phone and by
mail. Concealed damage must be reported within 15
days.
– Request an immediate joint inspection of the
damage by the carrier and the consignee.
– Do not remove damaged material from the
receiving location.
– Take photos of the damage, if possible. The owner
must provide reasonable evidence that the damage
did not occur after delivery.
• Notify the appropriate sales representative before
installing or repairing a damaged unit.
Precautionary Measures
WARNING
Fiberglass Wool!
Product contains fiberglass wool. Disturbing the
insulation in this product during installation,
maintenance or repair will expose you to airborne
particles of glass wool fibers and ceramic fibers known
to the state of California to cause cancer through
inhalation. You MUST wear all necessary Personal
Protective Equipment (PPE) including gloves, eye
protection, a NIOSH approved dust/mist respirator, long
sleeves and pants when working with products
containing fiberglass wool. Exposition to glass wool
fibers without all necessary PPE equipment could result
in cancer, respiratory, skin or eye irritation, which could
result in death or serious injury.
• Avoid breathing fiberglass dust.
• Use a NIOSH approved dust/mist respirator.
• Avoid contact with the skin or eyes. Wear long-
sleeved, loose-fitting clothing, gloves, and eye
protection.
• Wash clothes separately from other clothing: rinse
washer thoroughly.
• Operations such as sawing, blowing, tear-out, and
spraying may generate fiber concentrations requiring
additional respiratory protection. Use the appropriate
NIOSH approved respiration in these situations.
First Aid Measures
• Eye Contact - Flush eyes with water to remove dust. If
symptoms persist, seek medical attention.
• Skin Contact - Wash affected areas gently with soap
and warm water after handling.
Storage
Take precautions to prevent condensate from forming
inside the unit’s electrical compartments and motors if:
• The unit is stored before it is installed; or,
• The unit is set on the roof curb, and 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 is ready for start-up.
Note: Do not use the unit’s heater for temporary heat
without first completing the start-up procedure
detailed under “Start Up,” p. 20.
The manufacturer will not assume any responsibility for
equipment damage resulting from condensate
accumulation on the unit’s electrical and/or mechanical
components.
Unit Description
Before shipment, each unit is leak tested, dehydrated,
charged with refrigerant and compressor oil, and run
tested for proper control operation.
Direct-drive, vertical discharge condenser fans are
provided with built-in thermal overload protection.
The stages of capacity control for these units are achieved
by starting the Economizer Control Actuator (ECA).
System Input Devices &
Functions
The unit must have a thermostat input in order to operate.
The descriptions of the following basic input devices used
within the unit are to acquaint the operator with their
function as they interface with the various features.
Refer to the unit’s electrical schematic for the specific
device connections. The following controls are available
from the factory for field installation.

General Information
RT-SVX059D-EN 7
Drain Pan Condensate Overflow Switch
(Optional)
This input incorporates the Condensate Overflow Switch
(COF) mounted on the drain pan. When the condensate
level reaches the trip point, the COF relay energizes and
opens the 24VAC 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
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 range of
190–600 Vac, and LED indicators for ON and FAULT. There
are no field adjustments and the module will automatically
reset from a fault condition.
Discharge Line Thermostat Control
The high pressure controls and the discharge line
thermostat signals are wired in series and connected to
the safety input of the LSD. The compressor contactor coil
is connected to the ‘CC’ terminal of the LSD. If the high
pressure control switch or the discharge line thermostat is
open, the 24VAC signal to the SI input of the LSD is
interrupted and the compressor contactor coil supply is
disabled by the LSD. It has an automatic lockout.
Locking Safety Device with Anti-Short
Cycle Timer
This device monitors compressor safety switch trips to
prevent short cycling, protecting the compressor. A
manual reset is required after a fourth safety switch trip
within a 6 hour period.
Sensors
High Temperature Sensor (BAYFRST003*)
This sensor connects to the Emergency Stop Input on the
LTB and provides high limit “shutdown” of the unit. The
sensor is used to detect high temperatures due to fire in
the air conditioning or ventilation ducts. The sensor is
designed to mount directly to the sheet metal duct. Each
kit contains two sensors. The return air duct sensor
(X1310004001) is set to open at 135°F.
The supply air duct sensor (X1310004002) is set to open at
240°F. The control can be reset after the temperature has
been lowered approximately 25°F below the cutout
setpoint.
Thermostat (TCONT802AS32DA)
This thermostat is a multi-stage 3 heat/2 cool, auto-
changeover digital display thermostat. It is a
programmable thermostat, and a 7-day programmable
stat with night setback shall be available. In addition, it is
wall mounted.
Thermostat (TCONT402AN32DA)
This thermostat is a multi-stage 3 heat/2 cool, auto
changeover digital display thermostat. It is a non-
programmable, wall-mounted thermostat, and it can be
used for economizer operation.
Occupancy Sensor
A customer-supplied occupancy sensor can also be added
to provide damper control based on occupied/unoccupied
conditions.

8RT-SVX059D-EN
Dimensional Data
Figure 1, p. 8 illustrates the minimum operating and
service clearances for either a single or multiple unit
installation. These clearances are the minimum 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, “short-circuiting” of
exhaust and economizer airflows, or recirculation of hot
condenser air.
Figure 1. Typical installation clearance for single and multiple unit applications
END TO END
NOTE 2, 3
SIDE BY SIDE
NOTE 2
NOTE 1
3’ 0”
4’ 0”
5’ 0”
3’ 0” WITHOUT ECONOMIZER
5’ 8” WITH ECONOMIZER
NOTES:
1. FOR HORIZONTAL DISCHARGE UNIT,
THIS MEASUREMENT IS REDUCED TO 1’ 6”
TO MINIMIZE DUCT EXTENSION.
2. WHEN EQUIPPED WITH ECONOMIZER
OR BAROMETRIC RELIEF DAMPER,
CLEARANCE DISTANCE IS TO BE
MEASURED FROM PROTRUDING HOOD
INSTEAD OF BASE.
3. CLEARANCE ISTHE SAME IF ANY
UNIT IS ROTATED 180°.
4. ADDITIONAL CLEARANCE REQUIRED
WHEN BAROMETRIC DAMPER OR
ECONOMIZER IS INSTALLED.
SINGLE UNIT

Figure 2. Cooling with optional electrical heat units — overview
Figure 3. Cooling with optional electrical units — front & side views — 3–5 tons
Dimensional Data
RT-SVX059D-EN 9
DISCONNECT SWITCH ACCESS
CONDENSATE DRAIN CONNECTION
NOTES:
1. THRU-THE-BASE ELECTRICAL IS NOT STANDARD ON ALL UNITS.
2. VERIFY WEIGHT, CONNECTION, AND ALL DIMENSION WITH INSTALLER
DOCUMENTS BEFORE INSTALLATION
47.934
42.175
43.675
44.675
42.004 42.558
76.814
20.735
15.860
7.860

Figure 4. Cooling with optional electrical heat units — bottom view — 3–5 tons
Figure 5. Foundation units — back view (horizontal configuration) — 3–5 tons
Dimensional Data
10 RT-SVX059D-EN
SUPPLY
RETURN

Figure 6. Roof curb —3–5 tons
Figure 7. Downflow unit clearance — 3–5 tons standard efficiency
Dimensional Data
RT-SVX059D-EN 11
SUPPLY
RETURN
CLEARANCE
CLEARANCE
CLEARANCE
CLEARANCE
UNIT OUTLINE

Figure 8. Manual damper — 3–5 tons
Dimensional Data
12 RT-SVX059D-EN
MANUAL DAMPER HOOD
BACK VIEW OF UNIT
RIGHT VIEW OF UNIT
FAN
NOTE:
VERIFY WEIGHT, CONNECTION, AND ALL
DIMENSIONS WIT INSTALLER DOCUMENTS BEFORE
INSTALLATION.

RT-SVX059D-EN 13
Unit Weights
Table 1. Maximum unit & corner weights (lb) and center of gravity dimensions (in.) cooling with optional electric heat
units only
Tons
Unit
Model No.
Weights (lb)(a),
(a)Weights are approximate.
(b)
(b)Weights do not include additional factory or field installed options/accessories.
Corner Weights(c)
(c) Corner weights are given for information only.
Center of Gravity (in.)
Shipping Net A B C D Length Width
3EBC036* 542 492 90 102 159 141 41 29
4EBC048* 570 520 104 108 157 152 39 28
5EBC060* 590 540 113 112 157 158 38 28
Figure 9. Corner weights
Rigging
WARNING
Heavy Objects!
Ensure that all the lifting equipment used is properly
rated for the weight of the unit being lifted. Each of the
cables (chains or slings), hooks, and shackles used to
lift the unit must be capable of supporting the entire
weight of the unit. Lifting cables (chains or slings) may
not be of the same length. Adjust as necessary for even
unit lift. Other lifting arrangements could cause
equipment or property damage. Failure to follow
instructions above or properly lift unit could result in
unit dropping and possibly crushing operator/
technician which could result in death or serious injury.
WARNING
Improper Unit Lift!
Test lift unit approximately 24 inches to verify proper
center of gravity lift point. To avoid dropping of unit,
reposition lifting point if unit is not level. Failure to
properly lift unit could result in unit dropping and
possibly crushing operator/technician which could
result in death or serious injury and possible equipment
or property-only damage.
Refer to Figure 10 andTable 1 for typical unit operating
weights rigging before proceeding.
2. Remove the shipping crate from around the unit. Do
not remove the crating from the top of the unit.
3. Rig the unit as shown in Figure 10, p. 13. Attach
adequate strength lifting slings to all four lifting
brackets in the unit base rail. Do not use cables, chains,
or slings except as shown.
4. Install a lifting bar, as shown in Figure 10, to protect the
unit and to facilitate a uniform lift. The minimum
distance between the lifting hook and the top of the
unit should be 7 feet.
5. Test-lift the unit to ensure it is properly rigged and
balanced, make any necessary rigging adjustments.
6. Lift the unit and position it into place.
7. Downflow units; align the base rail of the unit with the
curb rail while lowering the unit onto the curb. Make
sure that the gasket on the curb is not damaged while
positioning the unit.
Figure 10. Rigging and center of gravity

14 RT-SVX059D-EN
Installation
Unit Foundation
WARNING
Risk of Roof Collapsing!
Confirm with a structural engineer that the roof
structure is strong enough to support the combined
weight of the roofcurb and the unit. Refer to “Unit
Weights,” p. 13 for typical unit and curb weights. Failure
to ensure proper structural roof support could cause the
roof to collapse, which could result in death or serious
injury and property damage.
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.
Notes:
•For units with optional Condensate Overflow Switch
(COF), the switch will not work properly if unit is not
level or slightly sloped toward switch.
•To assure proper condensate flow during operation 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 structure or a slab
foundation for support. Refer to Table 1, p. 13 for the unit’s
operating and point loading weights when constructing a
footing foundation.
If anchoring is required, anchor the unit to the slab using
hold down bolts or isolators. Isolators should be installed
to minimize the transmission of vibrations into the
building.
For rooftop applications, if anchoring is required, anchor
the unit to the roof with hold-down bolts or isolators.
Check with a roofing contractor for proper waterproofing
procedures.
Ductwork
Elbows with turning vanes 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 water-
tight 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 consideration, cut only the holes in the
roof deck for the ductwork penetrations. Do not cut
out the entire roof deck within the curb perimeter.
If a Curb Accessory Kit is not used:
a. The ductwork can be attached directly to the
factory-provided flanges around the unit’s supply
and return air openings. Be sure to use flexible duct
connections at the unit.
b. For “built-up” curbs supplied by others, gaskets
must be installed around the curb perimeter flange
and the supply and return air opening flanges.
General Unit Requirements
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.
The checklist listed below is a summary of the steps
required to successfully install a commercial unit. This
checklist is intended to acquaint the installing personnel
with what is required in the installation process. It does not
replace the detailed instructions called out in the
applicable sections of this manual.
• Check the unit for shipping damage and material
shortage; file a freight claim and notify appropriate
sales representative.
• Verify correct model, options and voltage from
nameplate.
• Verify that the installation location of the unit will
provide the required clearance for proper operation.
• Assemble and install the roof curb (if applicable). Refer
to the latest edition of the curb installers guide that
ships with each curb kit.
• Fabricate and install ductwork; secure ductwork to
curb.
• Rigging the unit.
• Set the unit onto the curb; check for levelness.
• Ensure unit-to-curb seal is tight and without buckles or
cracks.
• Install and connect a condensate drain line to the
evaporator drain connection.

Installation
RT-SVX059D-EN 15
Main Electrical Power Requirements
• Verify that the power supply complies with the unit
nameplate specifications.
• Inspect all control panel components; tighten any
loose connections.
• Connect properly sized and protected power supply
wiring to a field-supplied/ installed disconnect switch
and to the main power terminal block (HTB1) in the unit
control panel.
• Install proper grounding wires to an earth ground.
Note: All field-installed wiring must comply with NEC
and applicable local codes.
Electric Heat Requirements
• Verify that the power supply complies with the electric
heater specifications on the unit and heater nameplate.
• Inspect the heater junction box and control panel;
tighten any loose connections.
• Check electric heat circuits for continuity.
• Low Voltage Wiring (AC and DC) Requirements
• Install the zone thermostat, 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
An evaporator condensate drain connection is provided
on each unit. Refer to the unit overview figure in
“Dimensional Data,” p. 8 for the appropriate drain
location.
Note: Don't use PVC glue to connect condensate drain.
Thread sealing compound or Teflon tape may be
used.
A condensate trap must be installed at the unit due to the
drain connection being on the “negative pressure” side of
the fan.
A condensate drain line must be connected to the P-Trap.
Pitch the drain lines at least ½-inch for every 10 feet of
horizontal run to assure proper condensate flow. Do not
allow the horizontal run to sag causing a possible double-
trap condition which could result in condensate backup
due to “air lock”.
Filter Installation
Each unit ships with 2-inch filters installed. The quantity of
filters is determined by unit size. Access to the filters is
obtained by removing the filter access panel.
Refer to the unit Service Facts (shipped with each unit) for
filter requirements.
Note: Do not operate the unit without filters.
Field Installed Power Wiring
An overall dimensional layout for the standard field
installed wiring entrance into the unit is illustrated in
“Dimensional Data,” p. 8. To insure that the unit’s supply
power wiring is properly sized and installed, follow the
guidelines outlined below.
Note: All field installed wiring must conform to NEC
guidelines as well as state and Local codes.
Verify that the power supply available is compatible with
the unit’s nameplate ratings. The available supply power
must be within 10 percent of the rated voltage stamped on
the nameplate. Use only copper conductors to connect the
power supply to the unit.
NOTICE
Use Copper Conductors Only!
Unit terminals are not designed to accept other types of
conductors. Failure to use copper conductors could
result in equipment damage.
Note: If the unit is not equipped with an optional factory
installed nonfused disconnect switch or circuit
breaker, a field supplied disconnect switch must be
installed at or near the unit in accordance with the
National Electrical Code (NEC latest edition).
Main Unit Power
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.
Standard Wiring
The electrical service 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 is not equipped with an optional factory
installed nonfused disconnect switch, a field supplied
disconnect switch must be installed at or near the unit
in accordance with the National Electrical Code (NEC
latest edition).
• Location of the applicable electrical service entrance is
illustrated in “Dimensional Data,” p. 8. Complete the
unit’s power wiring connections onto either; the main
terminal block HTB1 inside the unit control panel, the

Installation
16 RT-SVX059D-EN
factory mounted nonfused disconnect switch (UCD),
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 codes.
Control Power Transformer
The 24-volt control power transformers are to be used only
with the accessories called out in this manual.
Transformers rated greater than 50 Vac are equipped with
internal circuit breakers. If a circuit breaker trips, turn “Off”
all power to the unit before attempting to reset it.
The transformer is located in the control panel. The circuit
breaker is located on the left side of the transformer and
can be reset by pressing in on the black reset button.
Controls Using 24 Vac
Before installing any connecting wiring, refer to
“Dimensional Data,” p. 8 for the electrical access locations
provided on the unit and Table 2, p. 16 for AC conductor
sizing guidelines.
NOTICE
Use Copper Conductors Only!
Unit terminals are not designed to accept other types of
conductors. Failure to use copper conductors could
result in equipment damage.
1. Use copper conductors unless otherwise specified.
2. Ensure that the AC control wiring between the controls
and the unit’s termination point does not exceed three
(3) ohms/conductor for the length of the run.
Note: Resistance in excess of 3 ohms per conductor could
cause component failure due to insufficient AC
voltage supply.
3. Be sure to check all loads and conductors for grounds,
shorts, and mis-wiring.
4. Do not run the AC low voltage wiring in the same
conduit with the high voltage power wiring.
5. Route low voltage wiring per illustrations on the next
page.
Table 2. Electromechanical thermostat 24 Vac
conductors
Distance from Unit to
Control Recommended Wire Size
000–460 feet 18 gauge
000–140 m 0.75 mm2
461–732 feet 16 gauge
Figure 11. Conventional thermostat field wiring
diagram
Voltage Imbalance
Three phase electrical power to the unit must meet
stringent requirements for the unit to operate properly.
Measure each leg (phase-to-phase) of the power supply.
Each reading must fall within the utilization range
stamped on the unit nameplate. If any of the readings do
not fall within the proper tolerances, notify the power
company to correct this situation before operating the
unit.
Excessive three phase voltage imbalance between phases
will cause motors to overheat and eventually fail.
The maximum allowable voltage imbalance is 2 percent.
Measure and record the voltage between phases 1, 2, and
3 and calculate the amount of imbalance as follows:
% Voltage Imbalance =
100 X AV - VD where;
AV
AV (Average Voltage) =
Volt 1 + Volt 2 + Volt 3
3
• V1, V2, V3 = Line Voltage Readings

Installation
RT-SVX059D-EN 17
• VD = Line Voltage reading that deviates the farthest
from the average voltage.
Example: If the voltage readings of the supply power
measured 221, 230, and 227, the average volts would be:
221 + 230 + 227 = 226 Avg.
3
• VD (reading farthest from average) = 221
• The percentage of Imbalance equals:
100 X 226 - 221 = 2.2%
226
The 2.2 percent imbalance in this example exceeds the
maximum allowable imbalance of 2.0 percent. This much
imbalance between phases can equal as much as a
20 percent current imbalance with a resulting increase in
motor winding temperatures that will decrease motor life.
If the voltage imbalance is over 2 percent, notify the
proper agencies to correct the voltage problem before
operating this equipment.
Electrical Phasing (Three Phase Motors)
The compressor motor(s) and the supply fan motor are
internally connected for the proper rotation when the
incoming 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!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.
• Turn the field supplied disconnect switch that provides
power to the main power terminal block or to the
“Line” side of the optional factory mounted disconnect
switch to the “Off” position.
• Connect the phase sequence indicator leads to the
terminal block or to the “Line” side of the optional
factory mounted disconnect switch as follows;
Black (phase A) to L1
Red (phase B) to L2
Yellow (phase C) to L3
• Close the field supplied main power disconnect switch
or circuit protector switch that provides the supply
power to the unit.
WARNING
Live Electrical Components!
During installation, testing, servicing and
troubleshooting of this product, it may be necessary to
work with live electrical components. Have a qualified
licensed electrician or other individual who has been
properly trained in handling live electrical components
perform these tasks. Failure to follow all electrical
safety precautions when exposed to live electrical
components could result in death or serious injury.
• Observe the ABC and CBA phase indicator lights on the
face of the sequencer. The ABC indicator light will glow
if the phase is ABC. If the CBA indicator light glows,
open the disconnect switch or circuit protection switch
and reverse any two power wires.
• Restore the main electrical power and recheck the
phasing. If the phasing is correct, open the disconnect
switch or circuit protection switch and remove the
phase sequence indicator.
Compressor Crankcase Heaters
NOTICE
Compressors Failure!
Unit must be powered and crankcase heaters energized
at least 8 hours BEFORE compressors are started. This
will protect the compressors from premature failure.
Each compressor can be equipped with a crankcase
heater. The proper operation of the crankcase heater is
important to maintain an elevated compressor oil
temperature during the “Off” cycle to reduce oil foaming
during compressor starts. Oil foaming occurs when
refrigerant condenses in the compressor and mixes with
the oil. In lower ambient conditions, refrigerant migration
to the compressor could increase.
When the compressor starts, the sudden reduction in
crankcase pressure causes the liquid refrigerant to boil
rapidly causing the oil to foam. This condition could
damage compressor bearings due to reduced lubrication
and could cause compressor mechanical failures.
Before starting the unit in the “Cooling” mode, set the
system switch to the “Off” position and turn the main
power disconnect to the “On” position and allow the
crankcase heater to operate a minimum of 8 hours.
Before closing the main power disconnect switch, insure
that the “System”selection switch is in the “Off” position
and the “Fan” selection switch is in the “Auto” position.
Close the main power disconnect switch and the unit
mounted disconnect switch, if applicable.

Installation
18 RT-SVX059D-EN
Checklist
Use the following checklist in conjunction with the general
checklist (“General Unit Requirements,” p. 14) to ensure
that the unit is properly installed and ready for operation.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.
• Check all electrical connections for tightness and
“point of termination” accuracy.
• Verify that the condenser airflow is unobstructed.
• Verify that the condenser fan and indoor blower turn
freely without rubbing and are properly tightened on
the shafts.
• Check the supply fan belts for proper tension and the
fan bearings for sufficient lubrication. If the belts
require adjustment, or if the bearings 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 size and number of filters are in
place.
• Inspect the interior of the unit for tools and debris and
install all panels in preparation for starting the unit.

RT-SVX059D-EN 19
Pre Start
Verifying Proper Air Flow (Units
with Belt Drive Indoor Fan)
Much of the systems 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 fan speed is changed by opening or closing the
adjustable motor sheave.
Before starting the SERVICE TEST, set the minimum
position setpoint for the economizer to 0% 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 Ventilation. Connect red
thermostat wire (R) to black thermostat wire (G).
Economizer Cooling. Connect a jumper wire across
OAT 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 2. Connect red thermostat wire (R) to yellow
thermostat wire (Y2).
Heat 1. Connect red thermostat wire (R) to brown
thermostat wire (W1).
Heat 2. Connect red thermostat wire (R) to brown
thermostat wire (W2).

20 RT-SVX059D-EN
Start Up
Compressor Start-Up
1. Attach a set of service gauges onto the suction and
discharge gauge ports for each circuit. Refer to the
refrigerant circuit illustration in the Service Facts.
Using the Service Test Guide, perform the proper test
mode connections.
Scroll Compressors
a. Once the 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.
b. If the electrical phasing is correct, before
condemning a compressor, interchange any two
leads (at the compressor Terminal block) to check
the internal phasing. Refer to the following
illustration for the compressor terminal/phase
identification. Do not allow the compressor to
operate backwards for more than 5 seconds.
Operation for a period of time longer than this will
result in compressor damage. Copeland (Alliance)
will experience failure also. If the compressor runs
backward for an extended period, the motor
winding can overheat and cause the motor winding
thermostat to open.
Note: The Copeland SXA scroll compressors for R-410A
units use Trane OIL00094. Compressor types are
listed in Table 3, p. 20. The appropriate oil charge is
listed in Table 4, p. 20.
Table 3. Compressor types
Tonnage C1
EBC036 SXA039
EBC048 SXA051
EBC060 SXA057
Table 4. POE Oil recharge amount (fl. oz.)
Model C1
EBC036 38
EBC048 38
EBC060 38
2. After the compressor and condenser fan have started
and operated for approximately 30 minutes, observe
the operating pressures. Compare the operating
pressures to the operating pressure curve in the
Service Facts.
3. Check system subcooling. Follow the instruction listed
on the subcooling charging curve in the Service Facts.
4. Repeat Step 1 through Step 3 for each refrigerant
circuit.
5. To stop the SERVICE TEST, turn the main power
disconnect switch to the “Off” position or proceed to
the next component start-up procedure. Remove
electro mechanical test mode connections (if
applicable).
Heating Start-Up
1. Clamp an amp meter around one of 1st stage heater
power wires at the heater contactor.
2. Verify that the heater stage is operating properly.
3. Clamp an amp meter around one of 2nd stage heater
power wires at the heater contactor (if applicable).
4. Verify that the heater stage is operating properly.
5. To stop the SERVICE TEST, turn the main power
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 and start-up
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:
• Program the Night Setback (NSB) panel (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
Temperature” settings for automatic operation are
correct.
• Inspect the unit for misplaced tools, hardware, and
debris.
• Verify that all exterior panels including the control
panel doors and condenser grilles are secured in place.
• Close the main disconnect switch or circuit protector
switch that provides the supply power to the unit’s
terminal block or the unit mounted disconnect switch.