Table of Contents
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Installation
Operation
Maintenance
Split System Cooling Condensers
7 1/2 - 20 Tons
Models:
(60 Hz)
(50 Hz)
TTA075AD**F
TTA090A***F
TTA085AD**F
TTA120A***F
TTA100AD**F
TTA120B***E
TTA100BD**E
TTA120C***G
TTA100CD**G
TTA150B***E
TTA125BD**E
TTA180B***F
TTA155BD**F
TTA180C***G
TTA155CD**G
TTA240B***F
TTA200BD**F
September 2004
TTA-SVX02C-EN
18-AC60D8-1
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Table of Contents
Related Manuals for Trane TTA090A series
Summary of Contents for Trane TTA090A series
- Page 1 TTA-SVX02C-EN 18-AC60D8-1 Installation Operation Maintenance Split System Cooling Condensers 7 1/2 - 20 Tons Models: (60 Hz) (50 Hz) TTA075AD**F TTA090A***F TTA085AD**F TTA120A***F TTA100AD**F TTA120B***E TTA100BD**E TTA120C***G TTA100CD**G TTA150B***E TTA125BD**E TTA180B***F TTA155BD**F TTA180C***G TTA155CD**G TTA240B***F TTA200BD**F September 2004...
- Page 2 Introduction Literature Change History to properly diagnose and repair this equipment. TTA-SVX02C-EN (September 2004) NOTICE: Page 13. Revised model nomenclature. Warnings and Cautions appear at TTA-SVX02B-EN (August 2003) appropriate sections throughout this Introduction of Reliatel Control Option. manual. Read these carefully. TTA-SVX02A-EN (May 2003) Compressor Change WARNING...
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Page 3: Table Of Contents
Contents Model Number Description ..................4 Unit Dimensions ....................5,6,7,8,9 Electrical Data ......................10 Unit Inspection ......................11 Initial Leak Test ......................11 Lifting Recommendations ..................11 Clearances ......................... 12 Unit Mounting ......................12 Refrigerant Piping ...................... 12 Leak Check ........................ 14 System Evacuation .................... -
Page 4: Model Number Description
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 below. Its use will enable the owner/operator, installing contractors, and service engineers to define the operation, specific components, and other options... -
Page 5: Unit Dimensions
Unit Dimensions Figure 1 - TTA075A , TTA090A Dimensional Data, Connection Location, Clearances, Corner Weights Figure 2 - TTA085A, TTA100A, TTA120A Dimensional Data, Connection Location, Clearances, Corner Weights TTA-SVX02C-EN... - Page 6 Unit Dimensions Figure 3 - TTA100B, TTA120B, TTA125B, TTA150B Dimensional Data, Connection Location, Clearances, Corner Weights Figure 4 - TTA100C, TTA120C Dimensional Data, Connection Location, Clearances, Corner Weights TTA-SVX02C-EN...
- Page 7 Unit Dimensions Figure 5 - TTA155B, TTA180B Dimensional Data, Connection Location, Clearances, Corner Weights TTA-SVX02C-EN...
- Page 8 Unit Dimensions Figure 6 - TTA155C, TTA180C Dimensional Data, Connection Location, Clearances, Corner Weights TTA-SVX02C-EN...
- Page 9 Unit Dimensions Figure 7 - TTA200B, TTA240B Dimensional Data, Connection Location, Clearances, Corner Weights TTA-SVX02C-EN...
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Page 10: Electrical Data
Electrical Data Table 3 - TTA Unit Electrical Data Basic Unit Characteristics Compressor Motor Outdoor Fan Motor Allowable Minimum Maximum Model Electrical Voltage Circuit Fuse Amps Amps Number Characteristics Range Ampacity Size Qty. LRA Qty. HP TTA090A3 208-230/60/3 187-254 34.5 25.1 182.0 TTA090A4 460/60/3... -
Page 11: Unit Inspection
Installation Initial Leak Test Installation procedures should be performed in the sequence that they appear in this manual. Do not destroy or All TTA units are shipped with a holding charge of nitrogen remove the manual from the unit. The manual should in each circuit. -
Page 12: Clearances
Installation Clearances Ensure that the roof Provide enough space around the unit to allow unrestricted structure supports are strong enough to support the access to all service points. Refer to Figure 1 through Figure 7 weight of the unit and any accessories. Failure to do this for unit dimensions and minimum required service and free air can result in personal injury or death due to structural clearances. - Page 13 Installation CAUTION: Do not remove the seal caps from refrigerant C. Recommended line sizes: connections until prepared to braze refrigerant lines to the TTA075, 085, 090, 100 & 120A (single circuit) connections. Excessive exposure to atmosphere may TTA155B, 180, 200, 240B (dual circuit) and TTA100 & allow moisture or dirt to contaminate the system, 120C (two speed) damaging valve seals and causing ice formation in...
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Page 14: Leak Check
Installation 7. With vacuum pump and micron gauge blanked off, open CAUTION: Do not apply heat to remove seal caps until valve on R-22 cylinder and allow refrigerant pressure to they have been punctured. If seal caps are intact, build up to about 40 psig. application of heat may generate excessive pressure in the unit and result in damage to the coil or expansion 8. -
Page 15: Electrical Wiring
Installation Table 6. - Additional Required Refrigerant USE EXTREME CAUTION Tubing Sizes Additional Additional WHILE SERVICING THE UNIT WHEN THE CONTROL Suction Liquid Tubing Length Refrigerant Note BOX ACCESS PANEL IS REMOVED AND POWER IS 1 1/8" 3/8" 15 ft. 0 lb 11.5 oz APPLIED TO THE UNIT. -
Page 16: Low Voltage Wiring - Electromechanical
Installation Figure 6 Typical Field Wiring - Electromechanical Control OPEN THE ELECTRICAL DIS-CONNECT SWITCH AND LOCK IN OPEN POSITION TO PREVENT ACCIDENTAL POWER APPLICATION. FAILURE TO DO SO MAY RESULT IN PERSONAL INJURY OR DEATH DUE TO ELECTRICAL SHOCK. Determine proper wire sizes and unit protective fusing requirements by referring to the unit nameplate and/or the unit Service Facts. -
Page 17: Low Voltage Wiring - Reliatel
Installation Figure 7 Typical Field Wiring - Reliatel Control TTA090A/TWE090A TTA150A/TWE180A TTA120A/TWE120A TTA120A/TWE120A FIELD WIRING: TTA240B/TWE240B TTA180C/TWE180B A-- 3 POWER WIRES, LINE VOLTAGE B-- 3 POWER WIRES, LINE VOLTAGE FOR 3 PHASE; FIELD WIRING: 2 WIRES FOR SINGLE PHASE A-- 3 POWER WIRES, LINE VOLTAGE C-- COOLING ONLY THERMOSTAT: 3 WIRES, 24 VOLTS*** B-- 3 POWER WIRES, LINE VOLTAGE FOR 3 PHASE;... -
Page 18: Reliatel Thermostat, Zone Sensor And Night Setback Wiring
Installation Figure 8 - Night Setback Panel Field Wiring Figure 9 - Zone Sensor Field Wiring Figure 10- Thermostat Field Wiring TTA-SVX02C-EN... -
Page 19: Typical Split System Cooling Diagram
Installation Figure 11 - Typical Split System Cooling TTA-SVX02C-EN... -
Page 20: Safety Controls
System Pre-Start Procedure Safety Controls Installation Checklist Note: All of these controls may not be installed on your unit, check Complete this checklist once the unit is installed to verify electrical schematic. that all recommended procedures have been accomplished before starting the system. Do not operate the system until all Low Outdoor Ambient Cooling items covered by this checklist are complete. -
Page 21: Sequence Of Operation For Electro Mechanical Control
System Start Procedure Electro Mechanical Controls Unit Start-Up Cooling Mode Once the unit is properly installed and pre-start procedures are complete, start the unit by turning the System Switch on With the disconnect switch in the ON position, current is the indoor thermostat to either HEAT, COOL or AUTO. -
Page 22: Sequence Of Operation For Reliatel Control
System Start Procedure ReliaTel Controls Unit Start-Up the compressor relay coil located on the RTRM during a call for cooling. When the compressor relay contacts close, the Once the unit is properly installed and pre-start procedures are complete, start the unit by turning the System Switch on compressor contactor coil is energized provided the low and the indoor thermostat to either HEAT, COOL or AUTO. -
Page 23: Service Test Modes For Reliatel Control
Service Test Modes ReliaTel Controls Test Modes Upon power initialization, the RTRM performs self-diagnostic There are three methods in which the “Service Test” can checks to insure that all internal controls are functional. It also be cycled at LTB-Test 1(T1) and LTB-Test 2 (T2). checks the configuration parameters against the components 1. -
Page 24: Trouble Shooting For Reliatel Control
Trouble Shooting ReliaTel Controls 8. Refer to the individual component test procedures if other mi- Trouble Shooting ReliaTel Controls croelectronic components are suspect. The RTRM has the ability to provide the service personnel System Status Checkout Procedure with some unit diagnostics and system status information. “System Status”... -
Page 25: Resetting Cooling And Heating Lockouts
Trouble Shooting ReliaTel Controls Method 2 Simultaneous Heat and Cool Failure To reset the system at the unit, cycle the unit power by turning 1. Emergency Stop is activated. the disconnect switch “Off” and then “On”. Lockouts can be cleared through the building management Method 2 system. - Page 26 Trouble Shooting ReliaTel Controls Test 4 - LED Indicator Test, (SYS ON, HEAT, & COOL) Programmable & Digital Zone Sensor Test Method 1 Testing serial communication voltage Testing the LED using a meter with diode test function. Test 1. Verify 24 VAC is present between terminals J6-14 & J6-11. both forward and reverse bias.
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Page 27: Maintenance
Maintenance Maintenance Note: Some motors are permanently lubricated. Perform all of the indicated maintenance procedures at the intervals scheduled. This will prolong the life of the unit and 7. Check refrigerant piping and fittings for leaks. reduce the possibility of costly equipment failure. The following warning complies with State of California law, Monthly Proposition 65. - Page 28 Maintenance Maintenance Log* Date Ambient Evaporator Temp. Entering Air Compressor Superheat Subcooling Suction Discharge Circuit #1 Circuit #1 Bulb Bulb Pressure Pressure Perform each inspection once per month (during cooling season) while unit is operating.
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Page 29: Warranty
Warranty Central Air Conditioner TTA, TTN, TTP , TTR, TTB, TTX, TTY and TTZ (Parts Only) This warranty is extended by American Standard to the original purchaser and to any succeeding owner of the real property to which the Air Conditioner is originally affixed, and applies to products purchased and retained for use within the U.S.A. - Page 30 Warranty Commercial Equipment Rated 20 Tons and Larger and Related Accessories (Parts Only) PRODUCTS COVERED — This warranty is extended by American Standard Inc., and applies only to commercial equipment rated 20 tons and larger and related accessories purchased and retained for use within the U.S.A. and Canada. Warrantor warrants for a period of 12 months from initial start-up or 18 months from date of shipment, whichever is less, that the products covered by this warranty (1) are free from defects in material and manufacture, and (2) have the capacities and...
- Page 32 Literature Order Number TTA-SVX02C-EN SV-UN-TTA-SVX02C-EN 09/04 File Number SV-UN-TTA-SVX02B-EN 02/04 Supersedes Stocking Location Webb Mason The manufacturer has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice. TTA-SVX02C-EN...