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MODGAS-XWR2 Technical Guide

LCD SCREENS

Main Screens Map

MGAS XWR

1086vXXX

Press to scroll through MODGAS Screens.

Press to go to STATUS Screens.

STATUS

Press to scroll through STATUS Screens.

Press to go to ALARMS Screens.

ALARMS

Press to scroll through ALARMS Screens.

Press to go to SLAVE ALARMS Screens.

SLAVE

ALARMS

Press to scroll through SLAVE ALARMS Screens.

Note: This screen only displays if a secondary MODGAS-XWR2 is

present.

Press to go to SETPOINT MENU Screens.

SETPOINT

Press to scroll through FORCE VALVES Screens.

Main Screens Map

Refer to the following map when navigating through the LCD

Main Screens. The rst screen is an initialization screen. To

scroll through the rest of the screens, press the <MENU> button.

Press to go to FORCE VALVES Screens.

FORCE

VALVES

Press to scroll through FORCE VALVES Screens.

Table of Contents3
Overview5
General Information5
Dimensions6
Figure 1: MODGAS-XWR2 Module Dimensions6
Wiring7
Important Wiring Considerations7
Table 1: Electrical and Environmental Requirements7
Stand-Alone Wiring8
One Modulating Valve, One Ignitor, One Stage (1V1IGN1S)8
Figure 2: Stand-Alone Wiring - One Modulating Valve, One Ignitor, One Stage8
Two Modulating Valves, Two Ignitors, Two Stages (2V2IGN2S)9
Figure 3: Stand-Alone Wiring - Two Modulating Valves, Two Ignitors, Two Stages9
Figure 4: Stand-Alone Wiring - Secondary Board 2V2IGN2S10
Two Modulating Valves, One Ignitor, One Stage (2V1IGN1S)11
Figure 5: Stand-Alone Wiring - Two Modulating Valves, One Ignitor, One Stage11
Figure 6: Stand-Alone Wiring - Secondary Board 2V1IGN1S12
Two Modulating Valves, Two Ignitors, One Stage (2V2IGN1S)13
Figure 7: Stand-Alone Wiring - Two Modulating Valves, Two Ignitors, One Stage13
12 Relay E-BUS Expansion Module14
Figure 8: Stand-Alone Wiring - 12 Relay E-BUS Expansion Module14
Communications Wiring15
One Modulating Valve, One Ignitor, One Stage (1V1IGN1S)15
Figure 9: Communications Wiring - One Modulating Valve, One Ignitor, One Stage15
Two Modulating Valves, Two Ignitors, One Stage (2V2IGN1S)16
Figure 10: Communications Wiring - One Modulating Valve, Two Ignitors, One Stage16
Two Modulating Valves, Two Ignitors, Two Stages (2V2IGN2S)17
Figure 11: Communications Wiring - Two Modulating Valves, Two Ignitors, Two Stages17
Figure 12: Communications Wiring - Secondary Board 2V2IGN2S18
Two Modulating Valves, One Ignitor, One Stage (2V1IGN1S)19
Figure 13: Communications Wiring - Two Modulating Valves, One Ignitor, One Stage19
Figure 14: Stand-Alone Wiring - Secondary Board 2V1IGN1S20
Inputs and Outputs21
Table 2: MODGAS-XWR2 Inputs and Outputs21
Sequence of Operation23
Operating Modes and Min Mode23
Heating Mode24
Valve Failure, Force Mode and Master Vs. Normal25
Lcd Screens26
Navigation Keys26
Figure 15: LCD Display and Navigation Keys26
Table 3: Navigation Key Functions26
Table 4: Editing Key Functions26
Main Screens Map27
Main Screens28
Alarms Menu and Slave Alarms30
Setpoint Screens31
Force Valves Screens32
Protected and Configuration Screens33
Configuration Screens34
Troubleshooting35
LED Diagnostics35
Table 5: STATUS LED Blink Codes35
Table 6: ALARM LED Blink Codes35
Figure 16: MODGAS-XWR2 LED Locations and Descriptions36
Alarms37
SAT Sensor Testing38
Table 7: 0-3V Temperature Sensor - Voltage and Resistance for Type III Sensors38
Table 8: 0-5V Temperature Sensor - Voltage and Resistance for Type III Sensors39
Appendix A: Sat Sensor40
Installation40
Figure 17: Supply Air Temperature Sensor Installation40
SAT Sensor Wiring Guide and Jumper Settings41
Table 9: SAT Wiring Conditions41
Table 10: Stand-Alone Mode SAT OPTIONS Jumper Settings41
Table 11: Communication Mode SAT OPTIONS Jumper Settings41
Appendix B: Modgas-Xwr Replacement42
MODGAS-XWR2 Replacement of MODGAS-XWR42
Figure 18: MODGAS-XWR2 Module42

Brand	AAON
Model	MODGAS-XWR2
Category	Controller
Language	English

AAON MODGAS-XWR2 User Manual

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