Ingersoll-Rand twe065e13fa1 Installation and operating instructions

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.
Split System Air Handlers
5-20 Tons
January 2012 SSA-SVX06B-EN
Installation, Operation,
and Maintenance
Model (60 Hz) Model (50 Hz)
TWE061D/E***A TWE051D***A
TWE090D/E***A TWE076D***A
TWE120D/E***A TWE101D/E***A
TWE150E***A TWE126E***A
TWE180E***A TWE156E***A
TWE240E***A TWE201E***A

© 2012 Trane All rights reserved SSA-SVX06B-EN
Warnings, Cautions and Notices
Warnings, Cautions and Notices. Note that warnings, cautions and notices appear at
appropriate intervals throughout this manual. Warnings are provide to alert installing contractors
to potential hazards that could result in death or personal injury. Cautions are designed to alert
personnel to hazardous situations that could result in personal injury, while notices indicate a
situation that could result in equipment or property-damage-only accidents.
Your personal safety and the proper operation of this machine depend upon the strict observance
of these precautions.
Read this manual thoroughly before operating or servicing this unit.
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.
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.
Important: DO NOT release refrigerant to the atmosphere! If adding or removing refrigerant is
required, the service technician must comply with all federal, state, and local laws.
Important: 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.
ATTENTION: Warnings, Cautions and Notices appear at appropriate sections throughout this
literature. Read these carefully:
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
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.

SSA-SVX06B-EN 3
Warnings, Cautions and Notices
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. Should equipment
failure occur, contact a qualified service organization with qualified, experienced HVAC technicians
to properly diagnose and repair this equipment.
Important: All phases of this installation must comply with the NATIONAL, STATE & LOCAL
CODES. In addition to local codes, the installation must conform with National
Electric Code -ANSI/NFPA NO. 70 LATEST REVISION.
Any individual installing, maintaining, or servicing this equipment must be properly trained,
licensed and qualified.
Important: Do not remove the VFD without first contacting technical support! For performance
-related questions and diagnostic support in North America call 1-877-872-6363. Any
return requires a claim number FIRST. Removal of the VFD prior to this step will void
the unit’s warranties.
WARNING
Personal Protective Equipment (PPE) Required!
Installing/servicing this unit could result in exposure to electrical, mechanical and chemical
hazards.
• Before installing/servicing this unit, technicians MUST put on all Personal Protective
Equipment (PPE) recommended for the work being undertaken. ALWAYS refer to appropriate
MSDS sheets and OSHA guidelines for proper PPE.
• When working with or around hazardous chemicals, ALWAYS refer to the appropriate MSDS
sheets and OSHA guidelines for information on allowable personal exposure levels, proper
respiratory protection and handling recommendations.
• If there is a risk of arc or flash, technicians MUST put on all Personal Protective Equipment
(PPE) in accordance with NFPA 70E or other country-specific requirements for arc flash
protection, PRIOR to servicing the unit.
Failure to follow recommendations could result in death or serious injury.
WARNING
Refrigerant under High Pressure!
System contains oil and refrigerant under high pressure. Recover refrigerant to relieve pressure
before opening the system. See unit nameplate for refrigerant type. Do not use non-approved
refrigerants, refrigerant substitutes, or refrigerant additives. Failure to recover refrigerant to
relieve pressure or the use of non-approved refrigerants, refrigerant substitutes, or refrigerant
additives could result in an explosion which could result in death or serious injury or
equipment damage.
WARNING
R-410A Refrigerant under Higher Pressure than R-22!
The units described in this manual use R-410A refrigerant which operates at higher pressures
than R-22 refrigerant. Use ONLY R-410A rated service equipment or components with these
units. For specific handling concerns with R-410A, please contact your local Trane
representative.
Failure to use R-410A rated service equipment or components could result in equipment
exploding under R-410A high pressures which could result in death, serious injury, or
equipment damage.

4SSA-SVX06B-EN
Table of Contents
Model Number Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Installation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Unit Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Initial Leak Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Lifting Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Repositioning Drain Pan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Field Conversion to 460 Volt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Refrigerant Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Installations, Limitations and Recommendations . . . . . . . . . . . . . . . . . . 13
Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Electrical Data - Standard, SZVAV and 2-Speed VFD . . . . . . . . . . . . . . . . . . . . . . 23
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Horizontal Suspension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Refrigerant Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Condensate Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Duct Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Air Flow Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Checkout Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Installation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Electrical Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Thermostat and Control Connections for Electromechanical Controls . 45
Thermostat and Control Connections for ReliaTel™ Controls . . . . . . . . 46
Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Variable Air Volume Applications (SZVAV) . . . . . . . . . . . . . . . . . . . . . . . . 48
2 Speed VFD Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Fan Belt Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Monthly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Annually (Cooling Season) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Precautionary Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
First Aid Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Maintenance Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

SSA-SVX06B-EN 5
Central Air Conditioner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Commercial Equipment Rated 20 Tons and Larger and Related Accessories
(Parts Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Wiring Diagram Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

6SSA-SVX06B-EN
Model Number Description
Model Number Description
All products are identified by a multiple-character model number that precisely identifies a particular type of
unit. An explanation of the alphanumeric identification code is provided. Its use will enable the owner/
operator, installing contractors, and service engineers to define the operation, specific components, and
other options for any specific unit.
Note: When ordering replacement parts or requesting service, be sure to refer to the specific model number,
serial number, and DL number (if applicable) stamped on the unit nameplate.
DIGITS 1 - 3: Product Type
TWE = Split System Heat Pump/Cooling Air Handler
DIGITS 4 - 6: Nominal Gross Cooling Capacity (MBh)
DIGIT 7: Major Development Sequence
DIGIT 8: Electrical Characteristics
DIGITS 9 - 10: Factory Installed Options
DIGITS 11: Minor Design Sequence
* = Current Design Sequence1
DIGITS 12: Service Digit
* = Current Design Sequence1
T W E 2 4 0 E 3 0 0 ** *
1 2 3 4 5 6 7 8 9 10 11 12
061 = 5 Tons (60 Hz) 051 = 4.6 Tons (50 Hz)
090 = 7½ Tons (60 Hz) 076 = 6.25 Tons (50 Hz)
120 = 10 Tons (60 Hz) 101 = 8.33 Tons (50 Hz)
150 = 12½ Tons (60 Hz) 126 = 10.4 Tons (50 Hz)
180 = 15 Tons (60 Hz) 156 = 13 Tons (50 Hz)
240 = 20 Tons (60 Hz) 201 = 16.7 Tons (50 Hz)
D = Single Circuit
E = Dual Circuit
1 = 208-230/60/1 W = 575/60/3
3 = 208-230/60/3 D = 380-415/50/3
4 = 460/60/3 K = 380/60/3
00 = Packed Stock (Standard)
03 = 2-speed Variable Frequency Drive (VFD) Standard Motor Electromechanical Condenser only
04 = 2-speed Variable Frequency Drive (VFD) Oversized Motor Electromechanical Condenser only
R3 = Single Zone Variable Air Volume (VFD) Standard Motor - Reliatel Cond only
R4 = Single Zone Variable Air Volume (VFD) Oversized Motor - Reliatel Cond only
1* = sequential alpha character

SSA-SVX06B-EN 7
General Information
Installation procedures should be performed in the sequence that they appear in this manual. Do
not destroy or remove the manual from the unit. The manual should remain weather-protected with
the unit until all installation procedures are complete.
Note: It is not the intention of this manual to cover all possible variations in systems that may
occur or to provide comprehensive information concerning every possible contingency that
may be encountered during an installation. If additional information is required or if specific
problems arise that are not fully discussed in this manual, contact your local sales office.
This manual covers installation of the TWE air handlers. These air handler models incorporate a
single slab coil assembly, improved application flexibility, servicing, maintenance accessibility and
an improved accessory line. They are fully convertible, (vertical to horizontal discharge) without
field removal of the coil assembly. They are shipped ready for horizontal installation.
All units have one drain pan that can be installed in any one of four positions. This allows for vertical
or horizontal applications and right or left exit.
Important: All dual circuit (digit 7 = E) have an intertwined coil
Installation Checklist
An “Installation Checklist” is provided at the end of the installation section of this manual. Use the
checklist to verify that all necessary installation procedures have been completed. Do not use the
checklist as a substitute for reading the information contained in the manual. Read the entire
manual before beginning installation procedures.
Unit Inspection
Inspect material carefully for any shipping damage. If damaged, it must be reported to, and claims
made against the transportation company. Compare the information that appears on the unit
nameplate with ordering and submittal data to ensure the proper unit was shipped. Available
power supply must be compatible with electrical characteristics specified on component
nameplates. Replace damaged parts with authorized parts only.
Initial Leak Test
All TWE units are shipped with a holding charge of nitrogen in each circuit. Remove the access
panel shown in Figure 12, p. 21. Locate the liquid line or suction line access valve for each circuit.
Install gauges to determine if the circuits are still pressurized. If not, the charge has escaped. Repair
as required to obtain a leak-free circuit.
Lifting Recommendations
WARNING
Improper Unit Lift!
Each of the cables (chains or slings) 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 may cause equipment or property-
only damage. 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 Ta b l e 1 and Ta b l e 2 for unit weight.

8SSA-SVX06B-EN
General Information
Before preparing the unit for lifting, estimate the approximate center of gravity for lifting safety.
Because of placement of internal components, the unit weight may be unevenly distributed.
Approximate unit weights are given in Ta b l e 1 and Ta b l e 2 , p . 8 .
The crated unit can be moved using a forklift of suitable capacity. For lifting the unit into an elevated
mounting position, run lifting straps or slings under the unit and attach securely to the lifting device.
NOTICE:
Equipment Damage!
Use spreader bars to prevent straps from damaging the unit. Install the bars between lifting
straps, both underneath the unit and above the unit. This will prevent the straps from crushing
the unit cabinet or damaging the unit finish.
Table 1. TWE Unit and Corner Weights - lbs (60 Hz)
Tons Model No. Shipping Max (lbs) Net Max (lbs)
Corner Weights - Vertical Corner Weights - Horizontal
1234ABCD
5 TWE061D/E 263 232 55 71 51 55 54 67 50 61
7½ TWE090D/E 360 323 67 99 75 82 56 92 87 88
10 TWE120D/E 429 393 77 121 110 85 79 118 77 119
12½ TWE150E 730 676 168 192 181 135 196 164 145 171
15 TWE180E 729 675 167 192 181 135 196 163 145 171
20 TWE240E 891 818 258 168 161 231 256 181 146 235
Table 2. TWE Unit and Corner Weights - kg (50 Hz)
Tons Model No. Shipping Max (kg) Net Max (kg)
Corner Weights - Vertical Corner Weights - Horizontal
1234ABCD
5 TWE051D/E 118 104 25 32 23 25 24 30 23 27
7½ TWE076D/E 162 145 30 45 34 37 25 41 39 40
10 TWE101D/E 193 177 35 54 50 38 36 53 35 54
12½ TWE126E 329 304 76 86 81 61 88 74 65 77
15 TWE156E 328 304 75 86 81 61 88 73 65 77
20 TWE201E 401 368 116 76 72 104 115 81 66 106

SSA-SVX06B-EN 9
Pre-Installation
The final position for the air handler must be dictated by required service access to it, weight
distribution over structural supports, and by the locations of electrical, refrigerant and condensate
drainage connections. After this is determined, the following preparations should be made.
Repositioning Drain Pan
These air handlers come with one drain pan that can be installed in any one of four positions; this
allows for vertical or horizontal application and right or left condensate line connection. The drain
pan can also be easily removed for periodic cleaning.
Note: Important! All air handlers are shipped with the drain pan installed in the horizontal position
and the connection on the left side (as shown in Figure 1. If an alternate position is required,
the drain pan should be repositioned before setting the air handler.
Figure 1. Drain Pan Location

10 SSA-SVX06B-EN
Pre-Installation
Process for Drain Pan Relocation Figure 2. Drain Pan Relocation
1. Remove the access plate at the opposite end of the drain
connection. This plate secures and lifts the back end of
the drain pan for sloping. It must be removed before the
drain pan can be removed. This is done as follows:
a. Remove the screw
b. Lift the access plate up
c. Pull the plate out. If the drain pan is to be moved to
the vertical position also remove the other two
access plates.
2. Remove the screw securing the drain pan.
a. Lift the pan up
b. Slide the pan out
3. Install the drain pan into the new position.
a. Slide the drain pan into the opening
b. Lift the drain pan up
c. Push it in all the way
d. Drop it down over the lip of the opening, secure with
screw
4. Install the access plate on the opposite end of the drain
pain.
a. Slide the edge of the access plate under the drain pan
b. Lift the access plate and drain pan up
c. Push the access plate in
d. Drop the access plate down over the lip of the
opening, secure with screw. If the drain pan is being
moved to the vertical position, install the other
access plates over the horizontal position opening.
NOTICE:
System Component Damage!
These air handlers are shipped with a dry nitrogen holding charge in the coil. Depress or
remove the access valve core to bleed off the nitrogen prior to brazing. Temporarily cap off
tubes if the refrigerant line connections are to be made later.