Trane RAUC-C20 User Manual

June 2008
SS-SVX09A-EN
Installation
Operation
Maintenance
Remote Split System Units
Air Cooled Condensing Units and EVP Chillers
Models
“V” and Later Design Sequence
RAUC-C20 RAUC-C40
RAUC-C25 RAUC-C50
RAUC-C30 RAUC-C60

Trane RAUC-C20 Specifications

General

Brand	Trane
Model	RAUC-C20
Category	Air Conditioner
Language	English

Summary

Warnings, Cautions and Notices

Grounding Required!

Mandates compliance with electrical codes for grounding to prevent injury.

Installation

Refrigerant Piping Requirements

Essential steps for installing properly sized liquid and suction lines and related components.

Main Electrical Power Requirements

Procedures for verifying power supply and installing power wiring according to codes.

Leak Testing Procedure

Step-by-step guide for leak testing the refrigerant system using nitrogen.

Field Installed Power Wiring

Guidelines for installing supply power wiring to the unit, ensuring proper sizing.

Field Installed Control Wiring Requirements

Instructions for wiring 115 VAC and EVP chiller control systems.

EVP Chiller Control

Overview of EVP chiller controls, including remote panel and sensors.

Constant Volume Control (Honeywell 973)

System Pre-Start Procedures

System Evacuation Procedures

Detailed steps for evacuating refrigeration circuits using a vacuum pump.

Discharge Air Controller Checkout (Honeywell W7100A)

Economizer Actuator Checkout

EVP Chiller Control Checkout (Honeywell W7100G)

Master Energy Control Checkout

System Start-Up

Voltage Imbalance

Electrical Phasing

Chilled Water Temperature Controller (6U11)

Compressor Start-Up (All Systems)

Critical steps for starting compressors, including valve positions and charging.

Service & Maintenance

Scroll Compressor Replacement

Coil Cleaning