Attachment_1_142010-26-0151.pdf
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- 1305M326Q0383
About this file
This is an Installation, Operation, and Maintenance manual for Trane Split System Cooling Condensers (TTA series units) rated 6-20 tons, applicable to both 50 Hz and 60 Hz models. The document provides comprehensive technical guidance for qualified HVAC personnel responsible for installation, startup, and ongoing maintenance of these units.
The manual covers critical installation procedures including unit inspection, mounting requirements (rooftop or ground level), refrigerant piping guidelines, system evacuation, and charging procedures using R-410A refrigerant. Electrical wiring specifications, both for line voltage power supply and low voltage control circuits, are detailed for electromechanical and ReliaTel™ microelectronic control systems. The document specifies minimum clearance requirements, dimensional data for all model variants, and includes detailed charging curves and superheat tables for proper system commissioning. Start-up procedures distinguish between electromechanical controls and ReliaTel™ controls, with specific operational sequences for cooling and heating modes. Comprehensive troubleshooting guidance is provided for ReliaTel™ control systems, including system status checkout procedures, failure diagnostics, and test modes. Maintenance requirements are prescribed on monthly and annual schedules, with emphasis on coil cleaning, pressure monitoring, and refrigerant line inspection. The document includes warranty information covering 12-month/18-month basic coverage and extended four-year compressor warranties for commercial equipment under 20 tons. A wiring diagram matrix references 40+ specific diagrams keyed to individual model numbers and control types, available through e-Library or local sales offices.
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| Sol_1305M326Q0383_Amd_0001.pdf | ||
| Attachment_6B_142010-26-0151.pdf | ||
| Attachment_9_142010-26-0151.pdf | ||
| Attachment_8B_142010-26-0151.pdf | ||
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| Attachment_5_142010-26-0151.pdf | ||
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| Sol_1305M326Q0383.pdf | ||
| Wage_Determination_2015-4191_Burlington.txt | TXT text file | |
| Attachment_7A_142010-26-0151.pdf | ||
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Text version
�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 Cooling Condensers
6-20 Tons
March 2011 SS-SVX10A-EN
Installation, Operation, and Maintenance
(60 Hz) (50 Hz)
TTA073D***A TTA061D***A
TTA090D***A TTA076D***A
TTA120D/E/F***A TTA086D***A
TTA150E***A TTA101D/E/F***A
TTA180E/F***A TTA126E***A
TTA240E***A TTA156E/F***A
TTA240F**BA TTA201E/F***A
Warnings, Cautions and Notices
Warnings, Cautions and Notices. Note that warnings, cautions and notices appear at appropriate intervals throughout this manual. Warnings are provided to alert installing contractors to potential hazards that could result in personal injury or death. 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.
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.
�WARNING
R-410A Refrigerant under Higher Pressure than R-22!
The unit described in this manual uses R-410A refrigerant which operates at higher pressures than R-22 refrigerant. Use ONLY R-410A rated service equipment or components with this unit.
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 or components exploding under R-410A high pressures which could result in death, serious injury, or equipment damage.
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.
�CAUTION: Indicates 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.
© 2011 Trane All rights reserved SS-SVX10A-EN
Warnings, Cautions and Notices
�WARNING
Contains R-410A Refrigerant!
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 follow proper procedures or the use of non-approved refrigerants, refrigerant substitutes, or refrigerant additives could result in death or serious injury or equipment damage.
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.
�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 and OSHA guidelines for proper PPE.
• When working with or around hazardous chemicals, ALWAYS refer to appropriate MSDS 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 NFPA70E for arc/flash protection PRIOR to servicing the unit.
Failure to follow recommendations could result in death or serious injury.
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.
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.
SS-SVX10A-EN 3
Table of Contents Model Number Description
General Information Installation Checklist Unit Inspection Inspection Checklist Initial Leak Test Lifting Recommendations
Pre-Installation Clearances Unit Mounting
Dimensional Data
Electrical Data
Installation Refrigerant Piping Guidelines Refrigerant Piping Procedures (Outdoor Units) Refrigerant Piping Procedure (Indoor Unit) Leak Check Insulating and Isolating Refrigerant Lines Refrigerant Charging Procedure Liquid Charging Electrical Wiring Unit Power Supply Field Wiring- Electromechanical Control Field Wiring- ReliaTel™ Control Field Wiring Refrigerant Circuit
Charging Charts
Pre-Start
Start-Up Electromechanical Controls ReliaTel™ Controls ReliaTel™ Control Cooling Mode
Service Test Modes ReliaTel™ Controls Test Modes
Troubleshooting Trouble Shooting ReliaTel™ Controls System Status Checkout Procedure Simultaneous Heat and Cool Failure Resetting Cooling and Heating Lockouts Zone Temperature Sensor (ZTS) Service Indicator
4 SS-SVX10A-EN
Programmable & Digital Zone Sensor Test
Maintenance Monthly Annually (Cooling Season) Coil Cleaning Maintenance Log
Warranty For Commercial Unitary Equipment Rated Under 20 Tons and Related Accessories Commercial Equipment Rated 20 Tons and Larger and Related Accessories (Parts Only)
Wiring Diagram Matrix
SS-SVX10A-EN 5
6 SS-SVX10A-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 TTA = Split System Cooling
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 T A 2 4 0 F 3 0 0 * *
1 2 3 4 5 6 7 8 9 10 11 12
061 = 5 Tons (50 Hz) 073 = 6 Tons (60 Hz) 076 = 6.25 Tons (50 Hz) 090 = 7½ Tons (60 Hz) 086 = 7 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 = 13.0 Tons (50 Hz) 240 = 20 Tons (60 Hz) 201 = 16.7 Tons (50 Hz)
D = Single Circuit E = Dual Circuit F = Manifold Scroll Compressors
3 = 208-230/60/3 D = 380-415/50/3 4 = 460/60/3 K = 380/60/3 W = 575/60/3
00 = Packed Stock 0S = Black Epoxy Coated Coil 0R = ReliaTel, no LCI Board 0T = ReliaTel, no LCI Board with Black Epoxy Coated Coil 0U = ReliaTel, with LCI Board 0W = ReliaTel, with LCI Board and Black Epoxy Coated Coil H0 = Hailguard with Packed Stock HS = Hailguard with Black Epoxy Coated Coil HR = Hailguard with ReliaTel, no LCI Board HT = Hailguard with ReliaTel, no LCI Board with Black Epoxy Coated Coil HU = Hailguard with ReliaTel, with LCI Board HW = Hailguard with ReliaTel, with LCI Board and Black Epoxy Coated Coil
1 * = sequential alpha character
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 and 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.
Note: “Warnings” and “Cautions” appear at appropriate places in this manual. Your personal safety and the proper operation of this machine require that you follow them carefully. The Company assumes no liability for installations or servicing performed by unqualified personnel.
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 insure 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.
Inspection Checklist
To protect against loss due to damage incurred in transit, complete the following checklist upon receipt of the unit.
1. Inspect individual pieces of the shipment before accepting the unit. Check for obvious damage to the unit or packing material.
2. Inspect the unit for concealed damage before it is stored and as soon as possible after delivery.
Concealed damage must be reported within 15 days. If concealed damage is discovered, stop unpacking the shipment. 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.
3. Notify the carrier’s terminal of damage immediately by phone and by mail. Request an immediate joint inspection of the damage by the carrier and the consignee.
4. Notify the sales representative and arrange for repair. Do not repair the unit until the damage is inspected by the carrier’s representative.
Initial Leak Test
All TTA units are shipped with a holding charge of nitrogen in each circuit. Remove the service panel(s) shown in Figure 3, p. 12 - Figure 9, p. 18. Locate the liquid line or suction line service 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
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 Table 1 and Table 2, p. 8.
SS-SVX10A-EN 7
General Information
� 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. Failure to properly lift unit could result in death or serious injury. Refer to Table 1 and Table 2 for unit weight.
The crated unit can be moved using a forklift of suitable capacity. For lifting the unit, attach lifting straps or slings securely to the lifting holes at each corner. Use spreader bars to protect the unit casing from damage. Test lift the unit to determine proper balance and stability.
NOTICE
Equipment Damage!
Use spreader bars to prevent lifting straps from damaging the unit. Install bars between lifting straps. This will prevent the straps from crushing the unit cabinet or damaging the unit finish.
Table 1. TTA Unit and Corner Weights — kg (50 Hz)
Tons Model No.
Shipping Max (kg) Net Max (kg)
Corner Weights
1 2 3 4
5 TTA061D 164 135 38 41 20 36
6.25 TTA076D 163 134 38 40 20 36
7 TTA086D 213 181 61 47 32 41
8.33
TTA101D 210 178 60 47 31 40
TTA101E 230 197 62 57 40 39
TTA101F 229 197 58 63 37 39
10.4 TTA126E 244 211 59 68 36 49
TTA156E 383 325 93 92 68 72
TTA156F 383 326 88 94 69 76
16.7
TTA201E 437 377 118 108 74 77
TTA201F 435 376 116 112 69 79
Table 2. TTA Unit and Corner Weights — lbs (60 Hz)
Tons Model No.
Shipping Max (lbs) Net Max (lbs)
Corner Weights
1 2 3 4
6 TTA073D 365 300 85 90 44 81
7½ TTA090D 363 298 84 89 44 81
TTA120D 467 395 133 103 70 89
TTA120E 510 438 137 127 88 86
TTA120F 509 438 129 140 83 86
12½ TTA150E 543 468 130 151 79 108
TTA180E 850 723 207 204 151 161
TTA180F 852 725 196 208 153 168
TTA240E 970 837 262 240 164 171
TTA240F 966 835 257 249 153 176
8 SS-SVX10A-EN
Pre-Installation
Clearances
Provide enough space around the unit to allow unrestricted access to all service points. Refer to Figure 3, p. 12 - Figure 9, p. 18 for unit dimensions and minimum required service and free air clearances. Observe the following points to ensure proper unit operation.
1. Do not install the unit under a low overhang. Condenser discharge must not be restricted. See notes in Figure 3, p. 12 - Figure 9, p. 18.
Note: Important! Do not obstruct condenser discharge air. This can result in warm air recirculation through the coil.
2. Do not locate the unit in a position where runoff water can fall into the fan discharge openings.
3. Condenser intake air is supplied from three or four sides of the unit. Adhere to the minimum required clearances given in Figure 3, p. 12 - Figure 9, p. 18.
Unit Mounting
� WARNING
Mounting Integrity!
Ensure that the roof structure supports are strong enough to support the weight of the unit and any accessories. Failure to do so could result in death or serious injury or possible equipment or property-only damage.
Rooftop Mounting
If the unit will be roof mounted, determine for certain that the structure is strong enough to support the unit and any required accessories.
Unit weights are given in Table 1 and Table 2,
p. 8. The unit should be elevated on a level, field fabricated four-inch steel or wood 4" x 4" mounting frame. Complete the frame and secure it into position before lifting the unit to the roof.
The mounting frame must support a minimum of three of the unit’s four sides and should span roof supports to distribute the load on the roof.
Ground Level Mounting
4. For ground level installation, the unit base should be adequately supported and hold the unit near level. The installation must meet the guidelines set forth in local codes. The support should extend two inches beyond the unit base channels at all points. The unit and support must be isolated from any adjacent structure to prevent possible noise or vibration problems. Any ground level location must comply with required clearances given in Figure 3, p. 12 - Figure 9,
p. 18.
Figure 1. Roof Mounted Unit
Outdoor Unit
Gas (Suction) Line - Insulated
Liquid Line Insulated
Unit Mounting Channels
Elevation (Mounting Frame)
Roof Trussing
Ceiling
Roof Construction
6” Radius
SS-SVX10A-EN 9
Pre-Installation Refrigerant Piping
�WARNING
R-410A Refrigerant under Higher Pressure than R-22!
The unit described in this manual uses R-410A refrigerant which operates at higher pressures than R-22 refrigerant. Use ONLY R-410A rated service equipment or components with this unit.
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 or components exploding under R-410A high pressures which could result in death, serious injury, or equipment damage.
Roof Damage!
System contains oil and refrigerant under high pressure. Roofs should be protected from exposure to oils and refrigerant in the system. If rooftop is not protected damage to the roof may occur.
Structural Preparation
Important: Refer to local building codes for proper installation. All installation must comply with local building codes.
10 SS-SVX10A-EN
Dimensional Data
Note: Full dimensional data available on next pages.
Figure 2. TTA Quick Reference
H
W D
H
WD
H - lb (kg) W - lb (kg) D - lb (kg)
TTA 061, 073, 076, 090 39.125 (993.8) 42.125 (1070) 36 (914.4)
TTA 086, 101, 120 39.125 (993.8) 52.125 (1324) 40 (1016)
TTA126, 150 45.125 (1146.1) 52.125 (1324) 40 (1016)
TTA 156, 180, 201, 240 45.125 (1146.1) 95.5 (2425.7) 45.875 (1165.2)
SS-SVX10A-EN 11
Figure 3. TTA061, 073, 076, 090 Condensing Unit, Single Compressor
BOTTOM
OF UNIT
7 15/16" (201.6)
16 7/16" (417.5)
29 13/16" (757.2)
34 1/8" (866.8)
14 3/8" (365.1)
26 15/16" (684.2)
39 3/16" (995.3)
2 7/8" (73)
1 7/8" (47.6)
33 13/16" (858.8)
1/16" (1.59)
6" (152.4)
21 11/16" (550.9)
6" (152.4)
34 3/4" (882.6)
40 3/4" (1035)
3" (76.2)
1 13/16" (46)
27 11/16" (703.3)
2 5/16" (58.7)
4 3/16" (106.36)
33 7/8" (860.4)
35 15/16" (912.8)
40 15/16" (1039.8)
41 15/16" (1065.2)
NOTES:
1. ACCESS OPENING IS FOR FIELD INSTALLED BAYLOAM ACCESSORY.
2. MINIMUM CLEARANCE FOR PROPER OPERATION IS 36" (914.4) FROM
WALLS, SHRUBBERY, PRIVACY FENCES ETC. MINIMUM CLEARANCE
BETWEEN ADJACENT UNITS IS 72" (1828.8). RECOMMENDED SERVICE
CLEARANCE 48" (1219.2)
3. TOP DISCHARGE AREA SHOULD BE UNRESTRICTED FOR 100" (2540)
MINIMUM. UNIT SHOULD BE PLACED SO ROOF RUN-OFF WATER DOES
NOT POUR DIRECTLY ON UNIT
4. OUTDOOR AIR TEMPERATURE SENSOR OPENING (DO NOT BLOCK OPENING)
SERVICE CLEARANCE
48" (1219.2) (SEE NOTE 2
FOR CLEARANCE) SEE NOTE 1
REFRIGERANT ACCESS
HAIL GUARD
(OPTIONAL)
SUCTION LINE
LIQUID LINE
CONTROL WIRING
LINE VOLTAGE
SERVICE PANEL
HAIL GUARD
(OPTIONAL)
SERVICE PANEL
7/16" (11.11) DIA. ISOLATOR MOUNTING
HOLES (OUTSIDE HOLES - 4 PLACES)
SEE NOTE 3
SERVICE PANEL SIDE
SEE NOTE 4
WITH HAIL GUARD
WITH HAIL GUARD
12 SS-SVX10A-EN
Figure 4. TTA086, 101, 120 Condensing Unit, Single Compressor
BOTTOM
OF UNIT
14 5/16" (363.5)
26 7/8" (682.6)
39 1/8" (993.8)
2 7/8" (73)
1 7/8" (47.6)
34 1/16" (865.2)
7 1/2" (190.5)
8 1/4" (209.5)
29 3/4" (755.6)
4 15/16" (125.4)
1 15/16" (49.2)
4 1/4" (108)
1 1/4" (31.7)
37 11/16" (957.3)
1/16" (1.6)
6" (152.4)
25 11/16" (652.5)
37 15/16" (963.6)
3" (76.2)
50 3/4" (1289) 44 3/4"
(1136.6)
1 11/16" (42.9)
31 11/16" (804.9)
3 13/16" (96.8)
2 3/16" (55.6)
39 15/16" (1014.4)
50 15/16" (1294)
51 15/16" (1319.2)
LIQUID LINE
SUCTION LINE
SERVICE PANEL SIDE
SERVICE CLEARANCE
48" (1219.2) (SEE NOTE 2
FOR CLEARANCE
HAIL GUARD
(OPTIONAL)
SERVICE PANEL
SEE NOTE 3
HAIL GUARD
(OPTIONAL)
SERVICE PANEL
CONTROL WIRING
LINE VOLTAGE
REFRIGERANT ACCESS
SEE NOTE 1
SEE NOTE 4
WITH HAIL GUARD
7/16" (11.1) DIA. ISOLATOR MOUNTING
HOLES (OUTSIDE HOLES - 4 PLACES)
NOTES:
1. ACCESS OPENING IS FOR FIELD INSTALLED BAYLOAM ACCESSORY.
2. MINIMUM CLEARANCE FOR PROPER OPERATION IS 36" (914.4) FROM
WALLS, SHRUBBERY, PRIVACY FENCES ETC. MINIMUM CLEARANCE
BETWEEN ADJACENT UNITS IS 72" (1828.8). RECOMMENDED SERVICE
CLEARANCE 48" (1219.2)
3. TOP DISCHARGE AREA SHOULD BE UNRESTRICTED FOR 100" (2540)
MINIMUM. UNIT SHOULD BE PLACED SO ROOF RUN-OFF WATER DOES
NOT POUR DIRECTLY ON UNIT
4. OUTDOOR AIR TEMPERATURE SENSOR OPENING (DO NOT BLOCK OPENING)
WITH HAIL GUARD
6" (152.4)
SS-SVX10A-EN 13
Figure 5. TTA101, 120 Condensing Unit, Dual Compressor
4 1/4" (108)
1 1/4" (31.7)
10 3/8" (263.5)
34 1/16" (865.2)
29 3/4" (755.6)
2 1/2" (63.5)
5 1/16" (128.6)
7 7/8" (200)
9 1/4" (235)
6 3/8" (162)
3 15/16" (100)
SUCTION LINE
LIQUID LINE
SERVICE CLEARANCE
48" (1219.2) (SEE NOTE 2
FOR CLEARANCE)
HAIL GUARD
(OPTIONAL)
SERVICE PANEL
SEE NOTE 3
HAIL GUARD
(OPTIONAL)
CONTROL WIRING
LINE VOLTAGE
SEE NOTE 4
NOTES:
1. ACCESS OPENING IS FOR FIELD INSTALLED BAYLOAM ACCESSORY.
2. MINIMUM CLEARANCE FOR PROPER OPERATION IS 36" (914.4) FROM
WALLS, SHRUBBERY, PRIVACY FENCES ETC. MINIMUM CLEARANCE
BETWEEN ADJACENT UNITS IS 72" (1828.8). RECOMMENDED SERVICE
CLEARANCE 48" (1219.2)
3. TOP DISCHARGE AREA SHOULD BE UNRESTRICTED FOR 100" (2540)
MINIMUM. UNIT SHOULD BE PLACED SO ROOF RUN-OFF WATER DOES
NOT POUR DIRECTLY ON UNIT
4. OUTDOOR AIR TEMPERATURE SENSOR OPENING (DO NOT BLOCK OPENING).
14 5/16" (363.5)
26 7/8" (682.6)
39 1/8" (993.8)
2 7/8" (73)
1 7/8" (47.6)
50 15/16" (1294)
51 15/16" (1319.2)
REFRIGERANT ACCESS
SEE NOTE 1
WITH HAIL GUARD
37 11/16" (957.3)
1/16" (1.6)
6" (152.4)
25 11/16" (652.5)
37 15/16" (963.6)
39 15/16" (1014.4)
SERVICE PANEL
WITH HAIL GUARD
6" (152.4)
BOTTOM
OF UNIT
3" (76.2)
50 3/4" (1289) 44 3/4"
(1136.6)
1 11/16" (42.9)
31 11/16" (804.9)
3 13/16" (96.8)
2 3/16" (55.6)
SERVICE PANEL SIDE
7/16" (11.1) DIA. ISOLATOR MOUNTING
HOLES (OUTSIDE HOLES - 4 PLACES)
14 SS-SVX10A-EN
Figure 6. TTA101, 120 Condensing Unit, Manifolded Compressor
BOTTOM
OF UNIT
1 1/4" (31.7)
8 5/16" (211)
4 15/16" (125.4)
1 15/16" (49.2)
HOLES (OUTSIDE HOLES - 4 PLACES)
NOTES:
1. ACCESS OPENING IS FOR FIELD INSTALLED BAYLOAM ACCESSORY.
2. MINIMUM CLEARANCE FOR PROPER OPERATION IS 36" (914.4) FROM
WALLS, SHRUBBERY, PRIVACY FENCES ETC. MINIMUM CLEARANCE
BETWEEN ADJACENT UNITS IS 72" (1828.8). RECOMMENDED SERVICE
CLEARANCE 48" (1219.2)
3. TOP DISCHARGE AREA SHOULD BE UNRESTRICTED FOR 100" (2540)
MINIMUM. UNIT SHOULD BE PLACED SO ROOF RUN-OFF WATER DOES
NOT POUR DIRECTLY ON UNIT
4. OUTDOOR AIR TEMPERATURE SENSOR OPENING (DO NOT BLOCK OPENING)
LIQUID LINE
SUCTION LINE
SERVICE PANEL SIDE
SERVICE CLEARANCE
48" (1219.2) (SEE NOTE 2
FOR CLEARANCE)
HAIL GUARD
(OPTIONAL)
SERVICE PANEL
SEE NOTE 3
HAIL GUARD
(OPTIONAL)
CONTROL WIRING
LINE VOLTAGE
SEE NOTE 4
4 1/4" (108)
34 1/16" (865.2)29 3/4"
(755.6)
37 11/16" (957.3)
1/16" (1.6)
6" (152.4)
25 11/16" (652.5)
37 15/16" (963.6)
39 15/16" (1014.4)
SERVICE PANEL
WITH HAIL GUARD
6" (152.4)
14 5/16" (363.5)
26 7/8" (682.6)
39 1/8" (993.8)
2 7/8" (73)
1 7/8" (47.6)
50 15/16" (1294)
51 15/16" (1319.2)
REFRIGERANT ACCESS
SEE NOTE 1
WITH HAIL GUARD
7/16" (11.1) DIA. ISOLATOR MOUNTING
3" (76.2)
44 3/4" (1136.6)
50 3/4" (1289)
3 13/16" (96.8)
2 3/16" (55.6)
31 11/16" (804.9)
1 11/16" (42.9)
SS-SVX10A-EN 15
Figure 7. TTA126, 150 Condensing Unit, Dual Compressor
BOTTOM
OF UNIT
35 3/4" (908)
42 5/16" (1074.7)
11 3/8" (289)
3 3/16" (81)
6 3/8" (161.9)
7 7/8" (200)
9 5/16" (236.5)
5 1/16" (128.6)
1 1/4" (31.7)
2 7/8" (73)
32 7/8" (835)
44 3/4" (1136.6)
1 13/16" (46)
44 3/4" (1136.6)
50 3/4" (1289)
3" (76.2)
31 11/16" (804.9)
3 13/16" (96.8)
2 3/16" (55.6)
1 11/16" (42.9)
SUCTION LINE
LIQUID LINE
SERVICE PANEL SIDE
SERVICE CLEARANCE
48" (1219.2) (SEE NOTE 2
FOR CLEARANCE
HAIL GUARD
(OPTIONAL)
SERVICE PANEL
SEE NOTE 3
HAIL GUARD
(OPTIONAL)
SERVICE PANEL
CONTROL WIRING
LINE VOLTAGE
REFRIGERANT ACCESS
SEE NOTE 1
SEE NOTE 4
WITH HAIL GUARD
7/16" (11.1) DIA. ISOLATOR MOUNTING
HOLES (OUTSIDE HOLES - 4 PLACES)
NOTES:
1. ACCESS OPENING IS FOR FIELD INSTALLED BAYLOAM ACCESSORY.
2. MINIMUM CLEARANCE FOR PROPER OPERATION IS 36" (914.4) FROM
WALLS, SHRUBBERY, PRIVACY FENCES ETC. MINIMUM CLEARANCE
BETWEEN ADJACENT UNITS IS 72" (1828.8). RECOMMENDED SERVICE
CLEARANCE 48" (1219.2)
3. TOP DISCHARGE AREA SHOULD BE UNRESTRICTED FOR 100" (2540)
MINIMUM. UNIT SHOULD BE PLACED SO ROOF RUN-OFF WATER DOES
NOT POUR DIRECTLY ON UNIT
4. OUTDOOR AIR TEMPERATURE SENSOR OPENING (DO NOT BLOCK OPENING).
WITH HAIL GUARD
14 5/16" (363.5)
50 15/16" (1294)
51 15/16" (1319.2)
39 15/16" (1014.4)
37 15/16" (963.6)
6" (152.4)
37 11/16" (957.3)
25 11/16" (652.5)
1/16" (1.6) 6"
(152.4)
4 1/4" (108)
16 SS-SVX10A-EN
Figure 8. TTA156, 180, 201, 240 Condensing Unit, Dual Compressor
BOTTOM OF UNIT
1/16" (1.6)
9" (228.6)
9" (228.6)
25 11/16" (652.5)
3/16" (4.8)
45 1/8" (1146.2)
41 5/8" (1057.3)39 7/8"
(1012.8)
4 3/8" (111.1)
5 9/16" (141.3)
12 9/16" (319.1)
14 5/8" (371.5)
18 3/4" (476.2)
6 13/16" (173) 1 3/16" (30.2)
15/16" (23.8)
9 1/4" (235)
3 3/8" (85.7)
6 5/8" (168.3)
3 11/16" (93.7)
6 5/16" (160.3)
44" (1117.6)
93" (2362.2)
87" (2210)
41 1/2" (1054)
2 3/16" (55.6)
3" (76.2) 6 13/16" (173)
36 7/8" (936.6)
41 3/8" (1051)
41 7/16" (1052.5)
93 5/16" (2370.1)
95 7/16" (2424)
46" (1168.4)
LINE VOLTAGE
SUCTION LINE
REFRIGERANT ACCESS
LIQUID LINES
SUCTION LINE
NOTES:
1. MINIMUM CLEARANCE FOR PROPER OPERATION IS 36" (914.4) FROM
WALLS, SHRUBBERY, PRIVACY FENCES ETC. MINIMUM CLEARANCE
BETWEEN ADJACENT UNITS IS 72" (1828.8). RECOMMENDED SERVICE
CLEARANCE 48" (1219.2)
2. TOP DISCHARGE AREA SHOULD BE UNRESTRICTED FOR 100" (2540)
MINIMUM. UNIT SHOULD BE PLACED SO ROOF RUN-OFF WATER DOES
NOT POUR DIRECTLY ON UNIT
3. OUTDOOR AIR TEMPERATURE SENSOR OPENING (DO NOT BLOCK OPENING)
7/16" (11.1) DIA. ISOLATOR MOUNTING
HOLES (OUTSIDE HOLES - 4 PLACES)
SERVICE PANEL SIDE
SERVICE CLEARANCE
48" (1219.2) (SEE NOTE 1
FOR CLEARANCE)
HAIL GUARD
(OPTIONAL)
HAIL GUARD
(OPTIONAL)
SERVICE
PANEL
DIMENSIONAL DETAIL
FRONT DETAIL A
SEE NOTE 2
HAIL GUARD
(OPTIONAL)
DETAIL A
SERVICE PANEL
CONTROL
WIRING
WITH HAIL GUARD
WITH HAIL GUARD
SEE NOTE 3
SS-SVX10A-EN 17
Figure 9. TTA156, 180, 201, 240 Condensing Unit, Manifolded Compressor
BOTTOM OF UNIT
3" (76.2)
41 5/8" (1057.3)
39 7/8" (1012.8)
9 1/4" (235)
6 5/16" (160.3)
3 3/8" (85.7)
15/16" (23.8)
1 3/16" (30.2)
6 13/16" (173)
20 1/16" (509.6)
41 1/4" (1047.8)
14 5/8" (371.5)
4 1/8" (104.8)
CONTROL WIRING
REFRIGERANT ACCESS
LIQUID LINE
SUCTION LINE
NOTES:
1. MINIMUM CLEARANCE FOR PROPER OPERATION IS 36" (914.4) FROM
WALLS, SHRUBBERY, PRIVACY FENCES ETC. MINIMUM CLEARANCE
BETWEEN ADJACENT UNITS IS 72" (1828.8). RECOMMENDED SERVICE
CLEARANCE 48" (1219.2)
2. TOP DISCHARGE AREA SHOULD BE UNRESTRICTED FOR 100" (2540)
MINIMUM. UNIT SHOULD BE PLACED SO ROOF RUN-OFF WATER DOES
NOT POUR DIRECTLY ON UNIT
3. OUTDOOR AIR TEMPERATURE SENSOR OPENING (DO NOT BLOCK OPENING)
7/16" (11.1) DIA. ISOLATOR MOUNTING
HOLES (OUTSIDE HOLES - 4 PLACES)
SERVICE PANEL SIDE
SERVICE CLEARANCE
48" (1219.2) (SEE NOTE 1
FOR CLEARANCE)
HAIL GUARD
(OPTIONAL)
HAIL GUARD
(OPTIONAL)
SERVICE
PANEL
DIMENSIONAL DETAIL
FRONT DETAIL A
SEE NOTE 2
HAIL GUARD
(OPTIONAL)
DETAIL A
SERVICE PANEL
WITH HAIL GUARD
WITH HAIL GUARD
LINE VOLTAGE
SEE NOTE 3
95 7/16" (2424)
45 1/8" (1146.2)
3/16" (4.8)
93 5/16" (2370.1)
93" (2362.2)
87" (2210)
2 3/16" (55.6)
6 13/16" (173)
41 1/2" (1054)36 7/8"
(936.6)
9" (228.6)
9" (228.6)
25 11/16" (652.5)
1/16" (1.6)
46" (1168.4)
44" (1117.6)
18 SS-SVX10A-EN
Electrical Data
Table 3. Electrical Characteristics — Compressor and Condenser Fan Motors — 50 Hz
Tons Unit
Model No.
Compressor Motor Condenser Fan Motor
No. Volts Phase
Amps
No. Volts Phase
Amps
RLA LRA FLA LRA
(Ea.) (Ea.) (Ea.) (Ea.)
5 TTA061DD 1 380-415-50 3 10.9 74 1 380-415-50 1 1.6 3.8
6.25 TTA076DD 1 380-415-50 3 12.5 101 1 380-415-50 1 1.6 3.8
7 TTA086DD 1 380-415-50 3 15.2 142 1 380-415-50 1 1.9 5.8
8.33
TTA101DD 1 380-415-50 3 17.2 111 1 380-415-50 1 1.9 5.8
TTA101ED 2 380-415-50 3 8.0 51.5 1 380-415-50 1 1.9 5.8
TTA101FD 2 380-415-50 3 9.9 64 1 380-415-50 1 1.9 5.8
10.4 TTA126ED 2 380-415-50 3 10.9 75 1 380-415-50 1 1.9 5.8
13.0
TTA156ED 2 380-415-50 3 12.5 101 2 380-415-50 1 1.9 5.8
TTA156FD 2 380-415-50 3 12.5 101 2 380-415-50 1 1.9 5.8
16.7
TTA201ED 2 380-415-50 3 19.1 142 2 380-415-50 1 1.9 5.8
TTA201FD 2 380-415-50 3 19.1 142 2 380-415-50 1 1.9 5.8
Note: Electrical characteristics reflect nameplate values and are calculated in accordance with UL and ARI specifications.
Table 4. Unit Wiring — Condensing Units — 50 Hz
Unit Model No.
Unit Operating
Voltage
Maximum Circuit
Ampacity
Maximum Fuse Size or Maximum Circuit
Breaker
TTA061DD 380/415 15.2 20
TTA076DD 380/415 17.3 25
TTA086DD 380/415 20.9 25
TTA101DD 380/415 23.4 30
TTA101ED 380/415 19.9 25
TTA101FD 380/415 24.2 30
TTA126ED 380/415 26.4 30
TTA156ED 380/415 32.0 40
TTA156FD 380/415 32.0 40
TTA201ED 380/415 46.9 60
TTA201FD 380/415 46.9 60
SS-SVX10A-EN 19
Table 5. Electrical Characteristics — Compressor and Condenser Fan Motors —60 Hz
Tons Unit
Model No.
Compressor Motor Condenser Fan Motor
No. Volts Phase
Amps
No. Volts Phase
Amps
RLA LRA FLA LRA
(Ea.) (Ea.) (Ea.) (Ea.)
TTA073D3 1 208-230 3 22.4 149 1 208-230 1 3.1 8.1
TTA073D4 1 460 3 10.6 75 1 460 1 1.6 3.8
TTA073DK 1 380 3 11.3 88 1 380 1 2.7 7
TTA073DW 1 575 3 7.9 54 1 575 1 1.2 3
7½
TTA090D3 1 208-230 3 25 164 1 208-230 1 3.1 8.1
TTA090D4 1 460 3 12.9 100 1 460 1 1.6 3.8
TTA090DK 1 380 3 14.3 94.3 1 380 1 2.7 7
TTA090DW 1 575 3 10.6 78 1 575 1 1.2 3
TTA120D3 1 208-230 3 30.1 225 1 208-230 1 5 14.4
TTA120D4 1 460 3 16.7 114 1 460 1 2.5 5.8
TTA120DK 1 380 3 19.8 140 1 380 1 3.4 7.8
TTA120DW 1 575 3 12.4 80 1 575 1 2 5.1
TTA120E3 2 208-230 3 16 110 1 208-230 1 5 14.4
TTA120E4 2 460 3 7.8 52 1 460 1 2.5 5.8
TTA120EK 2 380 3 10.4 65.6 1 380 1 3.4 7.8
TTA120EW 2 575 3 6 38.9 1 575 1 2 5.1
TTA120F3 2 208-230 3 17.6 123 1 208-230 1 5 14.4
TTA120F4 2 460 3 9.6 62 1 460 1 2.5 5.8
TTA120FW 2 575 3 6.1 40 1 575 1 2 5.1
12½
TTA150E3 2 208-230 3 22.4 149 1 208-230 1 5 14.4
TTA150E4 2 460 3 10.6 75 1 460 1 2.5 5.8
TTA150EK 2 380 3 11.3 88 1 380 1 3.4 7.8
TTA150EW 2 575 3 8.6 54 1 575 1 2 5.1
TTA180E3 2 208-230 3 25 164 2 208-230 1 5 14.4
TTA180E4 2 460 3 12.2 100 2 460 1 2.5 5.8
TTA180EK 2 380 3 14.3 94.3 2 380 1 3.4 7.8
TTA180EW 2 575 3 9.6 78 2 575 1 2 5.1
TTA180F3 2 208-230 3 25 164 2 208-230 1 5 14.4
TTA180F4 2 460 3 12.2 100 2 460 1 2.5 5.8
TTA180FK 2 380 3 14.3 94.3 2 380 1 3.4 7.8
TTA180FW 2 575 3 9.9 78 2 575 1 2 5.1
TTA240E3 2 208-230 3 39.1 267 2 208-230 1 5 14.4
TTA240E4 2 460 3 18.6 142 2 460 1 2.5 5.8
TTA240EK 2 380 3 23.1 160 2 380 1 3.4 7.8
TTA240EW 2 575 3 15.4 103 2 575 1 2 5.1
TTA240F3 2 208-230 3 39.1 267 2 208-230 1 5 14.4
TTA240F4 2 460 3 19.8 142 2 460 1 2.5 5.8
TTA240FK 2 380 3 23.1 160 2 380 1 3.4 7.8
TTA240FW 2 575 3 15.8 103 2 575 1 2 5.1
Note: Electrical characteristics reflect nameplate values and are calculated in accordance with cULus and ARI specifications.
20 SS-SVX10A-EN
Table 6. Unit Wiring — Condensing Units — 60 Hz
Tons Unit Model Number Unit Operating Voltage Range
Minimum Circuit Ampacity
Maximum Fuse or HACR Circuit Breaker
Size(a)
(a) HACR type circuit breaker per NEC.
TTA073D3 187-253 31.1 40
TTA073D4 414-506 14.9 20
TTA073DK 342-418 16.8 20
TTA073DW 518-632 11.1 15
7½
TTA090D3 187-253 34.4 45
TTA090D4 414-506 17.7 25
TTA090DK 342-418 20.6 25
TTA090DW 518-632 14.5 20
TTA120D3 187-253 42.6 60
TTA120D4 414-506 23.4 30
TTA120DK 342-418 28.2 35
TTA120DW 518-632 17.5 25
TTA120E3 187-253 41.0 45
TTA120E4 414-506 20.1 25
TTA120EK 342-418 26.9 30
TTA120EW 518-632 15.5 20
TTA120F3 187-253 44.6 50
TTA120F4 414-506 24.1 30
TTA120FW 518-632 15.7 20
12½
TTA150E3 187-253 55.4 70
TTA150E4 414-506 26.4 30
TTA150EK 342-418 28.8 35
TTA150EW 518-632 21.4 25
TTA180E3 187-253 66.3 80
TTA180E4 414-506 32.5 40
TTA180EK 342-418 39.0 45
TTA180EW 518-632 25.6 30
TTA180F3 187-253 66.3 80
TTA180F4 414-506 32.5 40
TTA180FK 342-418 39.0 45
TTA180FW 518-632 26.3 30
TTA240E3 187-253 98.0 110
TTA240E4 414-506 46.9 60
TTA240EK 342-418 58.8 70
TTA240EW 518-632 38.7 45
TTA240F3 187-253 98.0 110
TTA240F4 414-506 49.6 60
TTA240FK 342-418 58.8 70
TTA240FW 518-632 39.6 45
Note: Electrical characteristics reflect nameplate values and are calculated in accordance with cULus and ARI specifications.
7½ and 10 ton values are system rated; 12½, 15 and 20 ton values are condensing unit only rated.
SS-SVX10A-EN 21
Installation
Refrigerant Piping Guidelines
Note: Route refrigerant piping for minimum linear length, minimum number of bends and fittings (no reducers) and minimum amount of line exposed to outdoor ambients.
Refrigerant Piping Procedures (Outdoor Units)
�WARNING
R-410A Refrigerant under Higher Pressure than R-22!
The unit described in this manual uses R-410A refrigerant which operates at higher pressures than R-22 refrigerant. Use ONLY R-410A rated service equipment or components with this unit.
For specific handling concerns with R-410A, please contact your local Trane representative.
Figure 10. Allowable elevation difference: Cooling only TTA above indoor unit
Figure 11. Allowable elevation difference: TTA below indoor unit
Contact manufacturer for review
Acceptable liquid-riser height based on total liquid-line length (TTA below indoor unit)
Contact manufacturer for review
22 SS-SVX10A-EN
Failure to use R-410A rated service equipment or components could result in equipment or components exploding under R-410A high pressures which could result in death, serious injury, or equipment damage.
Each TTA unit ships with a holding charge of dry nitrogen. The nitrogen should be removed and the entire system evacuated (at the proper time) to avoid possible contamination.
1. Remove the compressor service access panel.
2. Locate the liquid and suction line service valves. Check that the piping connection stubs on the valves (Figure 12, p. 23) line up properly with the holes in the unit cabinet
3. Remove the refrigerant connection seal caps and open the service valve slowly to release the nitrogen from the unit.
NOTICE
System Component Damage!
Do not remove the seal caps from refrigerant connections, or open the service valves until prepared to braze refrigerant lines to the connections. Excessive exposure to atmosphere (> 5 min.) may allow moisture or dirt to contaminate the system, damaging valve seals and causing ice formation in system components.
�WARNING
Hazard of Explosion and Deadly Gases!
Never solder, braze or weld on refrigerant lines or any unit components that are above atmospheric pressure or where refrigerant may be present. Always remove refrigerant by following the guidelines established by the EPA Federal Clean Air Act or other state or local codes as appropriate. After refrigerant removal, use dry nitrogen to bring system back to atmospheric pressure before opening system for repairs. Mixtures of refrigerants and air under pressure may become combustible in the presence of an ignition source leading to an explosion.
Excessive heat from soldering, brazing or welding with refrigerant vapors present can form highly toxic gases and extremely corrosive acids. Failure to follow all proper safe refrigerant handling practices could result in death or serious injury.
4. Cut, fit and braze tubing, starting at the outdoor unit and work toward the indoor unit. See recommended tube sizes, Table 8, p. 27.
Figure 12. Outdoor Units - Refrigerant Piping (with dry nitrogen)
SS-SVX10A-EN 23
Note: Use long radius ells for all 90° bends.
All brazing should be done using a 2 to 3 psig dry nitrogen purge flowing through the pipe being brazed, Figure 12.
NOTICE
System Component Damage!
Install a regulating valve between the nitrogen source and the gauge manifold (Figure 12).
Unregulated pressure can damage system components.
NOTICE
System Component Damage!
Wet-wrap all valves and protect painted surfaces from excessive heat. Heat can damage system components and the unit finish.
5. Shut off nitrogen supply. Shut off the manifold valve for the line that is connected to the suction line service valve. Disconnect the line from the gauge port on the valve.
Refrigerant Piping Procedure (Indoor Unit)
Once liquid and suction lines are complete to the refrigerant connections on the indoor unit, remove the gauge port core(s) on the indoor unit connection stubs to release the dry nitrogen charge.
NOTICE
Unit Damage!
Do not apply heat to remove seal caps until the gauge port cores have been removed. If seal caps are intact, application of heat may generate excessive pressure in the unit and result in damage to the coil or expansion valve.
1. Remove both seal caps from the indoor unit connection stubs.
NOTICE
Equipment Damage!
Do not remove the seal caps from refrigerant connections, or open the service valves until prepared to braze refrigerant lines to the connections. Due to the high hygroscopic properties of the R410A oil, excessive exposure to atmosphere will allow moisture to contaminate the system, damaging the compressor.
2. Turn nitrogen supply on. Nitrogen enters thorough liquid line gauge port.
3. Braze the liquid line connections.
4. Open the gauge port on the suction line and then braze the suction line to the connection stub.
Nitrogen will bleed out the open gauge port on the suction line.
5. Shut off nitrogen supply.
24 SS-SVX10A-EN
Leak Check
�WARNING
Hazard of Explosion!
Use only dry nitrogen with a pressure regulator for pressurizing unit. Do not use acetylene, oxygen or compressed air or mixtures containing them for pressure testing. Do not use mixtures of a hydrogen containing refrigerant and air above atmospheric pressure for pressure testing as they may become flammable and could result in an explosion. Refrigerant, when used as a trace gas should only be mixed with dry nitrogen for pressurizing units. Failure to follow these recommendations could result in death or serious injury or equipment or property-only damage.
�WARNING
Hazard of Explosion!
Never use an open flame to detect gas leaks. Explosive conditions may occur. Use a leak test solution or other approved methods for leak testing. Failure to follow recommended safe leak test procedures could result in death or serious injury or equipment or property-only-damage.
After the brazing operation of refrigerant lines to both the outdoor and indoor unit is completed, the field brazed connections must be checked for leaks. Pressurize the system through the service valve with dry nitrogen to 200 psi. Use soap bubbles or other leak-checking methods to ensure that all field joints are leak free. If not, release pressure, repair and repeat leak test.
System Evacuation
1. After completion of leak check, evacuate the system.
2. Attach appropriate hoses from manifold gauge to gas and liquid line pressure taps.
Note: Unnecessary switching of hoses can be avoided and complete evacuation of all lines leading to sealed system can be accomplished with manifold center hose and connecting branch hose to a cylinder of R-410A and vacuum pump.
3. Attach center hose of manifold gauges to vacuum pump.
NOTICE
Operating Under Vacuum
Do not operate or apply power to the compressor while under a vacuum. Failure to follow these instructions will result in compressor failure.
4. Evacuate the system to hold a 500 micron vacuum.
5. Close off valve to vacuum pump and observe the micron gauge. If gauge pressure rises above 500 microns in one (1) minute, then evacuation is incomplete or the system has a leak.
6. If vacuum gauge does not rise above 500 microns in one (1) minute, the evacuation should be complete.
NOTICE
Equipment Damage
Charge with access port on the liquid line service valve only.
7. With vacuum pump and micron gauge blanked off, open valve on R-410A cylinder and allow refrigerant pressure to build up to about 80 psig.
8. Close valve on the R-410A supply cylinder. Close valves on manifold gauge set and remove refrigerant charging hoses from liquid and gas gauge ports.
9. Leak test the entire system. Using proper procedures and caution, as described in the previous section, repair any leaks found and repeat the leak test.
SS-SVX10A-EN 25
Insulating and Isolating Refrigerant Lines
Insulate the entire suction line with refrigerant piping insulation. Also insulate any portion of the liquid line exposed to temperature extremes. Insulate and isolate liquid and suction lines from each other. Isolate refrigerant lines from the structure and any duct work.
Note: To prevent possible noise or vibration problems, be certain to isolate refrigerant lines from the building.
Important: All suction and hot gas bypass piping (if installed) should be insulated from the termination in the air handler to the condensing unit cabinet entry. Failure to do so can cause condensate drip off and performance degradation.
Important: Prior to starting a unit is it is advisable to have the approved oils available in the event that oil is required to be added to the system.
NOTICE
Equipment Damage!
This is POE oil which readily absorbs moisture, always use new oil and never leave the containers open to atmosphere while not in use.
For units equipped with compressors containing site glasses, the oil level must be visible through the sight glass when the compressor is running under stabilized conditions and a few minutes after the compressor has stopped.
Refrigerant Charging Procedure
If charging by weight, refer to Table 8, p. 27 for starting change. If refrigerant adjustments are needed because of length of line, refer to charging curves and superheat with matched air handler beginning on p. 35.
Charge by weight through the gauge port on the liquid line. Once the charge enters the system, backseat (open) the liquid line service valve and disconnect the charging line and replace the cap on the gauge port.
Notes:
• R-410A should only be charged in the liquid state.
• When possible, always charge the refrigerant into the liquid line of the unit.
• If the entire charge can’t be charged into the liquid line, the balance of the unit charge can be metered through a charging manifold set as liquid preferably through a schrader valve into the suction line to the compressor — only while the compressor is running.
• Check and adjust superheat using Table 9, p. 35, then re-check charging chart to determine if charge corrections are necessary.
NOTICE
Equipment Damage!
Never charge liquid refrigerant into the suction line of the unit with the compressor off.
Table 7. TTA Approved Oils
Unit Model Number Approved Oils
TTA061, TTA073, TTA076, TTA090, TTA101, TTA120,
TTA126, TTA150, TTA156, TTA180 Trane Oil Part Number OIL00094 (1 quart container)
TTA086, TTA201, TTA240
Trane Oil Part Number OIL00079 (1 quart container) or OIL00080 (1 gallon container).
26 SS-SVX10A-EN
F
Liquid Charging
This procedure is accomplished with the unit operating. Electrical connections must be complete.
Do not proceed until the system is ready to operate.
Figure 13. Outdoor Units - Refrigerant Piping
Table 8. Estimated charge levels at ARI rated line lengths (25 feet) - 50 & 60 Hz
Matched Set
Refrigerant Charge Per Circuit
Circuit 1 Circuit 2 Liquid Line Diameter
Vapor Line Diameter
TTA061D w/TWE076D(a)
(a) TTA061D and TTA073D need a reducer for vapor line. (1.375 to 1.125 inch) (1 3/8” to 1 1/8”)
15.7 N/A 0.5 (1/2”) 1.125 (1 1/8”)
TTA073D w/TWE090D(a) 15.7 N/A 0.5 (1/2”) 1.125 (1 1/8”)
TTA076D w/TWE076D 17.6 N/A 0.625 (5/8”) 1.375 (1 3/8”)
TTA086D w/TWE101D 22.5 N/A 0.5 (1/2”) 1.375 (1 3/8”)
TTA090D w/TWE090D 17.6 N/A 0.625 (5/8”) 1.375 (1 3/8”)
TTA101D w/TWE101D 22.5 N/A 0.5 (1/2”) 1.375 (1 3/8”)
TTA120D w/TWE120D 22.5 N/A 0.5 (1/2”) 1.375 (1 3/8”)
TTA101E w/TWE101E 12.2 12.6 0.5 (1/2”) 1.125 (1 1/8”)
TTA120E w/TWE101D 12.2 12.6 0.5 (1/2”) 1.125 (1 1/8”)
TTA101F w/TWE101D 21.2 N/A 0.5 (1/2”) 1.375 (1 3/8”)
TTA120F w/TWE120D 21.2 N/A 0.5 (1/2”) 1.375 (1 3/8”)
TTA126E w/TWE126E 15.2 15.5 0.5 (1/2”) 1.125 (1 1/8”)
TTA150E w/TWE150E 15.2 15.5 0.5 (1/2”) 1.125 (1 1/8”)
TTA156E w/TWE156E 19.5 19.5 0.5 (1/2”) 1.375 (1 3/8”)
TTA180E w/TWE180E 19.5 19.5 0.5 (1/2”) 1.375 (1 3/8”)
TTA156F w/TWE156E 37.6 N/A 0.625 (5/8”) 1.625 (1 5/8”)
TTA180F w/TWE180E 37.6 N/A 0.625 (5/8”) 1.625 (1 5/8”)
TTA201E w/TWE201E 21.9 21.9 0.5 (1/2”) 1.375 (1 3/8”)
TTA240E w/TWE240E 21.9 21.9 0.5 (1/2”) 1.375 (1 3/8”)
TTA201F w/TWE201E 41.3 N/A 0.625 (5/8”) 1.625 (1 5/8”)
TTA240F w/TWE240E 41.3 N/A 0.625 (5/8”) 1.625 (1 5/8”)
SS-SVX10A-EN 27
Note: The compressor access panel must be installed when the unit is running and being charged.
Manifold hoses must be routed through refrigerant gauge access hole(s). See dimensional diagrams for specific locations (Figure 3, p. 12 - Figure 9, p. 18).
�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.
1. Turn on power to the unit. Allow the system to run for 5 to 10 minutes to stabilize operating conditions.
2. Measure airflow across the indoor coil. Compare the measurements with the fan performance data in the Data/Submittal or Service Facts. Once proper airflow is established, compare discharge pressure and liquid temperature to the “Charging Charts,” p. 35. Add or remove refrigerant (liquid only) as required to obtain correct discharge pressure and liquid temperature. Check suction line superheat and condenser sub-cooling to ensure the unit is operating properly.
3. Disconnect all power to the unit.
Important: If the unit is charged and left without power until a later date, the crankcase heater should be energized for a minimum of 8 hours prior to powering the compressor(s).
� WARNING
Hazardous Voltage w/Capacitors!
Disconnect all electric power, including remote disconnects and discharge all motor start/run capacitors before servicing. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. For variable frequency drives or other energy storing components provided by Trane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors. Verify with an appropriate voltmeter that all capacitors have discharged. Failure to disconnect power and discharge capacitors before servicing could result in death or serious injury.
4. Remove the charging system from the unit.
5. Replace all panels.
Electrical Wiring
�WARNING
Electrocution and Fire Hazards with Improperly Installed and Grounded
Field Wiring!
Improperly installed and grounded field wiring poses FIRE & 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. All field wiring MUST be performed by qualified personnel. Failure to follow these requirements could result in death or serious injury.
TTA field wiring consists of providing power supply to the unit, installing the system indoor thermostat and providing low voltage system interconnecting wiring. Access to electrical connection locations is shown in Figure 3, p. 12 - Figure 9, p. 18.
28 SS-SVX10A-EN
Unit Power Supply
The installer must provide line voltage circuit(s) to the unit main power terminals as shown by the unit wiring diagrams in Service Facts or field wiring. Power supply must include a disconnect switch in a location convenient to the unit. Ground the unit according to local codes and provide flexible conduit if codes require and/or if vibration transmission may cause noise problems.
Important: All wiring must comply with applicable local and national (NEC) codes. Type and location of disconnect switches must comply with all applicable codes.
� WARNING
Ground Wire!
All field-installed wiring must be completed by qualified personnel. All field-installed wiring must comply with NEC and applicable local codes. Failure to follow this instruction could result in death or serious injuries.
NOTICE
Equipment Damage!
Use copper conductors only! Unit terminals are not designed to accept other types of conductors. Failure to do so could result in possible equipment damage.
Field Wiring- Electromechanical Control
Determine proper wire sizes and unit protective fusing requirements by referring to the unit nameplate and/or the unit Service Facts. Field wiring diagrams for accessories are shipped with the accessory.
�WARNING
Hazardous Voltage w/Capacitors!
Disconnect all electric power, including remote disconnects and discharge all motor start/run capacitors before servicing. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. For variable frequency drives or other energy storing components provided by Trane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors. Verify with an appropriate voltmeter that all capacitors have discharged. Failure to disconnect power and discharge capacitors before servicing could result in death or serious injury.
Low Voltage Wiring
Mount the indoor thermostat, zone sensor, or Night Setback Panel (NSB) in accordance with the corresponding thermostat installation instructions. Install color-coded, weather-proof, multi-wire cable according to the interconnecting wiring diagrams in the Air Handler IOM.
For Electromechanical Controls
Wiring shown with dashed lines is to be furnished and installed by the customer. All customer-supplied wiring must be copper only and must conform to NEC and local electrical codes. Codes may require line of sight between disconnect switch and unit.
Note: When electric heater accessory is used, single point power entry or dual point power entry is field optional. Single point power entry option is through electric heater only.
SS-SVX10A-EN 29
Field Wiring:
A. 3 power wires. Line voltage for 3 phase (2 wires for single phase)
B. 3 power wires. Line voltage for 3…
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