Trane Relay Panel User Manual

18-HD68D1-3
ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
IMPORTANT — This Document is customer property and is to remain with this unit.
These instructions do not cover all variations in systems or provide for every possible contingency to be met in connection with
the installation. Should further information be desired or should particular problems arise which are not covered sufficiently for the
purchaser’s purposes, the matter should be referred to your installing dealer or local distributor.
Table of Contents
Section 1. Safety ................................................1
Section 2. General Information ......................... 2
Section 3. Installation ........................................ 3
Section 4. Terminal Locations & Identification .....6
Section 5. Field Wiring Diagrams .....................8
Section 6. LED Indicators ...............................11
Section 7. Troubleshooting .............................12
▲
WARNING
!
This information is intended for use by individuals possess-
ing adequate backgrounds of electrical and mechanical
experience. Any attempt to repair a central air conditioning
product may result in personal injury and/or property dam-
age. The manufacturer or seller cannot be responsible for
the interpretation of this information, nor can it assume any
liability in connection with its use.
▲
WARNING
!
LIVE ELECTRICAL COMPONENTS!
During installation, testing, servicing, and troubleshoot-
ing of this product, it may be necessary to work with live
electrical components. Failure to follow all electrical safety
precautions when exposed to live electrical components
could result in death or serious injury.
06/12
Installation Guide
Other Installation Guides may be necessary, based on system configuration.
A list of other system components is shown below.
1 Control (required) *ZONE950AC52ZA
2
Relay Panel
For use with 24V or communicating
indoor unit and 24V
controlled outdoor unit
3
Zone Panel (optional)
4
Zone Sensor with Display (optional)
5
Zone Sensor (optional)
6
Zone Dampers (optional)
Relay Panel
BAY24VRPAC52DB
* A or T
Section 1. Safety

Trane Relay Panel Specifications

General

Brand	Trane
Model	Relay Panel
Category	Relays
Language	English

Summary

Section 1. Safety

Section 2. General Information

Overview

Provides a general description of the Relay Panel and its function in HVAC systems.

Contents in Box

Lists all components included with the Relay Panel model BAY24VRPAC52DB.

Optional Accessories

Details optional sensors and accessories compatible with the Relay Panel.

Specifications

Presents technical specifications for the Relay Panel, including model, size, and compatibility.

System Transformer Sizing Guidelines

Provides guidance on selecting appropriate transformer sizes for various HVAC system configurations.

Section 3. Installation

Unit Location Considerations

Discusses suitable locations for installing the Relay Panel, considering environmental factors.

General Wiring Information

Covers essential wiring practices and safety precautions during Relay Panel installation.

Section 4. Terminal Locations and Identification

Dual Fuel Switch Functionality

Explains the function and positions of the Dual Fuel switch on the Relay Panel.

Thermostat and Indoor Unit Connections

Details terminal connections for thermostat and indoor unit communication.

Optional Remote Sensor Connections

Describes how to connect optional remote and outdoor sensors to the Relay Panel.

HVAC System Connections

Details terminal connections for various HVAC system components and functions.

Section 5. Field Wiring Diagrams

Section 6. LED Indicators

Comm LED Indicators

Explains the amber Communication LED and its flashing patterns.

Bit Master LED Indicators

Describes the green Bit Master/Clock Signal LED status.

HVAC System LED Indicators

Explains the green HVAC System LED, indicating when the relay is energized.

Section 7. Troubleshooting