Table of Contents
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Table of Contents
Related Manuals for AAON ASM01668
Summarization of Contents
Overview of MODGAS-X Module
General Information
Provides an overview of the MODGAS-X module, its purpose, and capabilities.
MODGAS-X Module Features
Lists the key functionalities and capabilities of the MODGAS-X module.
MODGAS-X Module Dimensions
Displays the physical dimensions and measurements of the MODGAS-X module.
Wiring the MODGAS-X Module
Important Wiring Considerations
Details crucial guidelines and precautions for proper electrical wiring of the MODGAS-X.
Powering Up the MODGAS-X
Explains the procedure and checks for safely powering on the MODGAS-X module for the first time.
Stand-Alone Wiring: Single Modulating Valve (No Staging)
Illustrates the wiring diagram for a single modulating valve without staging in standalone mode.
Communicating Wiring: Single Modulating Valve (No Staging)
Shows wiring for a single modulating valve without staging using communication mode.
Stand-Alone Wiring: Single Modulating Valve with Fixed Heat Stages
Wiring diagram for single modulating valve with multiple fixed heat stages in standalone mode.
Stand-Alone Wiring: Two Modulating Valves with Fixed Heat Stages
Wiring for two modulating valves with multiple fixed heat stages in standalone mode.
Stand-Alone Wiring: Two Modulating Staged Valves
Wiring diagram for two staged modulating valves in standalone mode.
Communicating Wiring: Two Modulating Staged Valves
Wiring diagram for two staged modulating valves in communicating mode.
MODGAS-X Inputs and Outputs
Inputs and Outputs Overview
Details the available input and output terminals and their functions on the MODGAS-X module.
Sequence of Operation
Operating Modes
Explains the different operating modes of the MODGAS-X, including Stand-Alone and Communications.
Normal Operation
Describes how the MODGAS-X operates normally to maintain discharge air temperature and combustion.
Off Mode
Details the conditions and behavior when the MODGAS-X is in the Off Mode.
High Fire Mode
Explains the initial High Fire Mode sequence upon heat activation and its conditions.
Min Mode Operation
Describes the initialization sequence and operation of the Min Mode for heating stages.
Heating Mode Operation
Details the primary heating mode, including modulation and staging.
Supply Air Setpoint Reset
Explains how the Supply Air Setpoint can be reset using an external signal.
Cutoff Mode Operation
Describes the Cutoff Mode, activated by high SAT, and its conditions.
LCD Screens and Navigation
Navigation Keys
Explains the function of the LCD display buttons for navigating menus and settings.
Main Screens Map
Provides a visual map of how to navigate through the main screens on the LCD display.
MODGAS-X Specific Screens
Details the specific screens available for the MODGAS-X module, including status and configuration.
Status and Alarms Screens
Explains how to view status information and alarm conditions on the LCD display.
Setpoint and Force Screens
Describes how to adjust setpoints and use force modes via the LCD display.
Protected and Diagnostic Screens
Details how to access protected and diagnostic screens for advanced information.
Configuration Screens
Explains how to configure various settings and parameters of the MODGAS-X module.
Troubleshooting the MODGAS-X
LED Diagnostics
Explains how to interpret the status and diagnostic LEDs on the MODGAS-X for troubleshooting.
Troubleshooting Alarms
Details how to troubleshoot common alarms like Mechanical Failure and SAT Failure.
SAT Sensor Testing Procedures
Provides instructions and charts for testing the Supply Air Temperature (SAT) sensor.
Appendix A: SAT Sensor
Supply Air Temperature Sensor Installation
Guides the user on how to properly mount and install the Supply Air Temperature (SAT) sensor in the ductwork.
SAT Sensor Wiring and Jumper Settings
Provides wiring conditions and jumper settings for SAT sensors in different modes.
Appendix B: MODGAS II Replacement
MODGAS-X Replacement of MODGAS II
Outlines the steps for replacing an older MODGAS II module with the MODGAS-X.
Appendix C: Maxitrol Valves
Maxitrol Stepper Valve Types
Shows visual examples of Maxitrol stepper valve types compatible with the MODGAS-X.
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