Related Manuals for Trane CTA 7 Series
Summary of Contents for Trane CTA 7 Series
- Page 1 Installation Owner Diagnostics Split System Cooling Condensers Model CTA 7 1/2 to 15 Tons Models “A” and later Design Sequence – 090A***A 60 HZ – 120A***A 60 HZ – 120B***A 60 HZ – 180B***A 60 HZ SS-SVN11A-EN...
- Page 2 Notice Overview of Manual NOTICE: Note: One copy of this document Warnings and Cautions appear at ships inside each unit and is customer appropriate sections throughout this property. It must be retained by the manual. Read these carefully. unit’s maintenance personnel. This booklet describes proper installa- WARNING –...
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Page 3: Table Of Contents
Contents Installation/Startup/Commissioning Model Number Description Unit Dimensions Electrical Data Unit Inspection Initial Leak Test Lifting Recommendations Clearances Unit Mounting Refrigerant Piping Leak Check System Evacuation Refrigeration Charging Electrical Wiring Low Voltage Wiring Refrigeration Schematic Installation Checklist Sequence of Operation Maintenance Warranty SS-SVN11A-EN... -
Page 4: Installation/Startup/Commissioning
Model Number Description Model Number Description Split System Condensing Model Nomenclature All products are identified by a multi- C T A 0 9 0 ple-character model number that pre- cisely identifies a particular type of 4 5 6 unit. An explanation of the alphanu- Digits 1,2,3 - Product Type Digits 8 - Electrical meric identification code is provided... -
Page 5: Unit Dimensions
Unit Dimensions — Figure 1 CTA090A — Figure 2 CTA120A SS-SVN11A-EN... - Page 6 Unit Dimensions — Figure 3 CTA120B SS-SVN11A-EN...
- Page 7 Unit Dimensions — Figure 4 CTA180B SS-SVN11A-EN...
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Page 8: Electrical Data
Electrical Data Table 1: CTA Unit Electrical Data Basic Unit Characteristics Outdoor Fan Motor Allowable Minimum Maximum Model Electrical Amps Amps Voltage Circuit Fuse Qty. Number Characteristics Range Ampacity Size CTA090A1 208-230/60/1 187-254 CTA090A2 460/60/1 414-506 CTA090A8 575/60/1 518-632 CTA120A1 208-230/60/1 187-254 17.0... -
Page 9: Unit Inspection
Installation Installation procedures should be per- be compatible with electrical charac- Lifting Recommendations formed in the sequence that they teristics specified on component Before preparing the unit for lifting, appear in this manual. Do not destroy nameplates. Replace damaged parts estimate the approximate center of or remove the manual from the unit. -
Page 10: Clearances
Installation Clearances Figure 5 Roof Mounted Unit Holes must be made in the structure Provide enough space around the unit to run refrigerant lines. For the major- to allow unrestricted access to all ser- ity of ground-level installations, the vice points. Refer to Figure 1 through holes can be made in the header that Figure 4 for unit dimensions and mini- rests on top of the foundation. - Page 11 Installation Note: Insulate all refrigerant piping 4. Unbraze the tube seal caps to reveal above the maximum recom- and connections. the line braze connections. mended unit test pressure as specified in applicable unit litera- Refrigerant Piping Procedures ture. Failure to properly regulate (Outdoor Units) WARNING: pressure could result in a violent...
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Page 12: Leak Check
Installation Refrigerant Piping Procedure Leak Check refrigerant charging hoses from the (Indoor Unit) After the brazing operation of the out- discharge and suction gauge ports. Once liquid and discharge lines are door and indoor refrigerant lines is 9. Leak test the entire system. Using complete to the refrigerant connec- complete, check the field brazed con- proper procedures and caution,... -
Page 13: Electrical Wiring
Installation CAUTION: Table 4: Additional Refrigerant 4. Check suction line superheat and condenser sub-cooling to ensure Use Copper Conductors Only! Tubing Sizes Additional Additional the unit is operating properly. Unit terminals are not designed to Tubing Refrig. Discharge Liquid 5. Disconnect all power to the unit. accept other types of conductors. -
Page 14: Low Voltage Wiring
Wiring Low Voltage WARNING: HAZARDOUS VOLTAGE! Disconnect all electric power, in- cluding remote disconnects be- fore servicing. Follow proper lockout/tagout procedures to en- sure the power can not be inad- vertently energized. Failure to disconnect power before servic- ing could result in death or seri- ous injury. -
Page 15: Field Wiring
Field Wiring SS-SVN11A-EN... - Page 16 Wiring SS-SVN11A-EN...
- Page 17 Wiring SS-SVN11A-EN...
- Page 18 Wiring SS-SVN11A-EN...
- Page 19 Wiring SS-SVN11A-EN...
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Page 20: Refrigeration Schematic
Refrigeration Diagram Figure 11: Typical Split System Cooling Diagram SS-SVN11A-EN... -
Page 21: Installation Checklist
System Pre-Start Procedure Installation Checklist Electrical Wiring Complete this checklist once the unit [ ] Provided unit power wiring (with is installed to verify that all recom- disconnect) to proper terminals in mended procedures have been the unit control section? accomplished before starting the sys- tem. -
Page 22: Sequence Of Operation
System Pre-Start Procedure Unit Start-Up Cooling Mode Once the unit is properly installed and When the room thermostat system pre-start procedures switch is positioned at COOL and the are complete, start the unit by turning fan switch is at AUTO, the condenser the System Switch on the indoor ther- fan relay energizes on a call for cool- mostat to either HEAT, COOL or AUTO. -
Page 23: Maintenance
Maintenance Maintenance Perform all of the indicated mainte- Annually (Cooling Season) WARNING: nance procedures at the The following maintenance proce- ELECTRICAL HAZARD! intervals scheduled. This will prolong dures must be performed at the begin- The maintenance and trouble- the life of the unit and reduce the pos- ning of each cooling season to insure shooting procedures recommend- sibility of costly equipment failure. - Page 24 Maintenance Maintenance Log Evaporator Entering Air Compressor Superheat Subcooling Ambient Date Temp. Suction Discharge Dry Bulb Wet Bulb Circuit #1 (F) Circuit #1 (F) Pressure Pressure Note: Perform each inspection once per month (during cooling season) while unit is operating. SS-SVN11A-EN...
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Page 25: Warranty
Warranty Warranty Information Standard Warranty The standard split system cooling condenser warranty is Trane’s parts- only warranty, running 12-months from startup, not to exceed 18- months from shipment. Extended Warranty The optional extended warranty is a second through fifth year warranty. - Page 26 Inland A Business of American Standard Companies www.trane.com Trane has a policy of continuous product and data improvement and reserves the right to change For more information, contact your local district design and specifications without notice. office or e-mail us at comfort@trane.com...