Trane Rtaaiom3 Manual
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Page 131
131RTAA-IOM-3 Periodic Maintenance General Perform all maintenance procedures and inspections at the recommended intervals. This will prolong the life of the equipment and minimize the possibility of costly failures. Use an “Operator’s Log”, such as that shown in Figure 58, to record an operating history for the unit. The log serves as a valuable diagnostic tool for service personnel. By observing trends in operating conditions, an operator can anticipate and prevent problem situations before they...
Page 133
133RTAA-IOM-3 Refrigerant Emission Control Evidence from environmental scientists indicates that the ozone in our upper atmosphere is being reduced, due to the release of CFC fully halogenated compounds. The Trane Company encourages every effort to eliminate, if possible, or vigorously reduce the emission of CFC, HCFC and HFC refrigerants into the atmosphere that result from installation, operation, routine maintenance, or major services on this equipment. Always act in a responsible manner to conserve...
Page 134
134RTAA-IOM-3 [ ] If operating pressures and sight glass conditions seem to indicate refrigerant shortage, measure the system superheat and system subcooling. Refer to “System Superheat” and “System Subcooling”. [ ] If operating conditions indicate a refrigerant overcharge, remove refrigerant at the liquid line service valve. Allow refrigerant to escape slowly, to minimize oil loss. Do not discharge refrigerant into the atmosphere. WARNING: Do not allow refrigerant to directly contact skin or injury...
Page 135
135RTAA-IOM-3 Maintenance General This section describes specific maintenance procedures which must be performed as a part of the normal maintenance program for this unit. Be certain that electrical power to the unit is disconnected before performing these procedures. WARNING: Position all electrical disconnects in the “OPEN” position and lock them, to prevent injury or death due to electrical shock. Coil Cleaning Clean the condenser coils at least once each year, or more frequently if the unit is...
Page 136
136RTAA-IOM-3 Water Treatment The use of untreated or improperly treated water in the unit may result in the formation of scale, algae, or slime. It may also cause erosion or corrosion. It is recommended that a qualified water treatment specialist provide recommendations for proper water treatment. The Trane Company assumes no responsibility for equipment failure caused by the use of untreated or improperly treated water. Oil Separator Level Check Follow the steps listed below and refer to the notes...
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137RTAA-IOM-3 Figure 60 System Oil Level Specifications Caution: Do not check oil level with machine operating. Severe oil loss will occur. Caution: When checking oil level wear protective clothing since oil will spray when discharged. Insure that the apex of the line above the sight glass is as high as possible, to eliminate liquid traps which can give erroneous readings.
Page 139
139RTAA-IOM-3 UNIT OPERATING STATUS COMPRESSOR OPERATING STATUS CODE DESCRIPTION CODE DESCRIPTION Blank UCM Power Off 00Compressor Stop 888888.8 UCM Paw Up 16 Compressor Lockout 00 Unit Stop 17 Cprsr Service Pumpdown 01 Auto-Local 70 Cprsr Restart Inhibit 02 Auto-Remote 72 Cprsr Start 17 Service Pumpdown 74 Run Normal 70 Unit Restart Inhibit 75 Run:Current Limit 72 Unit Start 76 Run: Condenser Limit 74 Run:Normal 1 77 Run:Evaporator Limit 75 Run :Current Limit 7E Run:Unload 78 Run ;Condenser Limit 77...
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For further information on this product or other Trane products, refer to the “Trane Service Literature Catalog,” ordering number IDX-IOM-1. This catalog contains listings and prices for all service literature sold by Trane. The catalog may be ordered by sending a $15.00 check to: The Trane Company, Service Literature Sales, 3600 Pammel Creek Road, La Crosse, WI 54601. To help ensure optimum performance, be sure to specify quality Trane parts. Printed by Production Services – La Crosse RTAA-IOM-3