To Next PageTo Next Page
Need help?Do you have a question about the Trane RTAA-400 and is the answer not in the manual?
General| Cooling Capacity | 400 tons |
|---|---|
| Compressor Type | Screw |
| Refrigerant | R-134a |
| Voltage | 460V |
| Phase | 3 |
| Dimensions | Varies by configuration |
| Weight | Varies by configuration |
| Full Load Amps | Varies by model; consult Trane submittal data |
| Sound Level | Varies by model; consult Trane submittal data |
Outlines general contractor responsibilities for unit installation, including foundation, piping, wiring, and initial startup.
Discussion of system configurations, elevation, and distance affecting line sizing and refrigerant charges.
Determining the appropriate size for field-installed lines by calculating the equivalent pipe length.
Examples and tables for determining appropriate liquid line sizes based on equivalent length and circuit capacity.
Instructions for installing suction line refrigerant sensors by the contractor.
Determining the approximate refrigerant charge required for the system using tables and sight glasses.
Calculating the amount of additional oil required based on refrigerant added for field-installed piping.
General recommendations for electrical installation, including compliance with codes and proper conductor usage.
Mandatory adherence to wiring recommendations for equipment damage prevention.
Requirements for providing leads from the chilled water pump starter auxiliary to the UCM for interlock.
Instructions for providing leads from remote contacts to the UCM for external auto/stop function.
Procedure for connecting a customer-furnished remote contact for a manually resettable diagnostic.
Auxiliary control for individual operation of Circuit #1, requiring contact closure to operate.
Auxiliary control for individual operation of Circuit #2, requiring contact closure to operate.
Enables auxiliary control for ice making when a contact is provided.
Steps for connecting the communication link wiring between the unit control panel and the Tracer unit.
Procedures for flushing water piping, connecting chilled water lines, and installing strainers.
Instructions for connecting unit power supply, control power, and evaporator heat tape wiring.
Details on the compressors used, including motor and rotor components, slide valve, and capacity control.
Explanation of how the UCM starts and loads compressors based on demand and operating hours.
Explanation of what the digital display shows, including operating/diagnostic codes and setpoints.
Explanation of flashing and non-flashing displays indicating diagnostic conditions.
How to use SET POINT UP/DOWN keys to select and adjust variables and options.
Monitoring of entering and leaving evaporator water temperatures to detect loss of water flow.
Setpoint for compressor current overload protection, modulated by the UCM.
Method to prevent unit start-up when outdoor air temperature is below the setpoint.
Procedure to test EXV operation by driving it closed and open.
Instructions for connecting external voltage or current signals for CWS and CLS setpoints.
Information on normal superheat values at full operating load and factors affecting it.
Normal subcooling ranges and guidance on checking superheat and subcooling for refrigerant level.
Importance of performing maintenance procedures to prolong equipment life and minimize failures.
