Trane 2TTB3 *

18-AC56D1-1 5

Installer’s Guide

TYPICAL FIELD HOOK-UP DIAGRAMS

Notes:

1. Be sure power supply agrees with equipment nameplate.

2. Power wiring and grounding of equipment must comply with local codes.

3. Low voltage wiring to be No. 18 AWG minimum conductor.

4. ODT-B must be set lower than ODT-A.

5. If outdoor thermostats (ODT) are not used, connect W1 to W2 and W3.

LEGEND

FACTORY WIRING

FIELD WIRING

PRINTED FROM B152901 P02

PRINTED FROM B152903 P02NOTE **

W2 present only on 2 stage

thermostat and furnace

Contents

Main Installers Guide A. GENERAL WARNING B. LOCATION AND PREPARATION OF THE UNIT Condensing Units CAUTION CAUTION ! Large diameter tubing will be very difficult to rebend once it has been shaped. D. SERVICE VALVE OPERATION LIQUID LINE SERVICE VALVE GAS LINE SERVICE VALVE GAS LINE BALL SERVICE VALVE 418-AC56D1-1 E. ELECTRICAL CONNECTIONS WARNING ! Table 1 NEC Class II Control Wiring 24 VOLTS WIRE SIZE MAX. WIRE LENGTH 18 AWG 150 FT 16 AWG 225 FT. 14 AWG 300 FT. F. COMPRESSOR START-UP * PRINTED FROM B152903 P02 LEGEND FACTORY WIRING FIELD WIRING PRINTED FROM B152901 P02 REFRIGERANT R-22 SUBCOOLING CHARGING TABLE LINE LIFT (FEET) SUBCOOL CHARGING TABLE CORRECTIONS FOR LINE LENGTH AND RISE 60 50 40 30 25 20 15 10 0 10 20 25 30 40 60 80 2TTB3 OUTLINE DRAWING