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MODGAS-XWR2
AAON MODGAS-XWR2 User Manual
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6
MODGAS-XWR2 T
echnical Guide
OVERVIEW
Dimensions
5.8
2.62
2.04
4.10
0.58
5.05
5.64
0.25
Note:
Depth is 1.49 inches.
Note:
All dimensions are in inches.
ASSEMBLED IN USA
U15
D13
R
R
R
R
L1
R61
C28
SERIAL #
POWER
COMM
ALARM
STATUS
TB3
GND
AUX AIN
J3
GND
1
2
SAT
OPTIONS
RESET IN
D8
HEAT EN
D7
AUX BIN
GND
J1
U1
TB2
R1
YS102408 REV 3
TB1
RLY1
RLY2
RLY3
RLY4
RLY5
RLY6
COMMON
PO-IGN1
P3
D9
R33
R1
P1
PO-IGN2
P4
D10
R36
R2
Q2
R5
P2
C35
.
01
UF
R8
R22
R18
R16
R12
R13
R42
R44
D14
SOFTWARE
C22
C27
GAS VALVE 2
GAS VALVE 1
ALARM
UP
DOWN
ENTER
MENU
MODGAS-XWR2
AAON P/N
:A
SM01695
LABEL
P/N:
G041530
E-BUS
DUAL
I2C
CONNECT
+24 V
AC
GND
@ 24
VA
C
1
AMP
MAX
CONT
ACT
RA
TING IS
COMMON
REL
AY
OUTPUTS
GAS
VA
LV
E
TERMINALS
GAS
V
AL
VE 1
GAS
V
AL
VE 2
INPUT TERMINALS (TYPE)
HEA
T ENABLE (BI)
AUX. (BI)
GND
RESET IN (AI)
SA
T IN (AI)
GND (AI)
GND
AUX. (AI)
www.aaon.com
LOW SPEED
HEA
T 1
HEA
T 2
HEA
T 3
HEA
T 4
PROOF OF IGNITION 1
PROOF OF IGNITION 2
FA
N
Figure 1:
MODGAS-XWR2 Module Dimensions
5
7
Table of Contents
Table of Contents
3
Overview
5
General Information
5
Dimensions
6
Figure 1: MODGAS-XWR2 Module Dimensions
6
Wiring
7
Important Wiring Considerations
7
Table 1: Electrical and Environmental Requirements
7
Stand-Alone Wiring
8
One Modulating Valve, One Ignitor, One Stage (1V1IGN1S)
8
Figure 2: Stand-Alone Wiring - One Modulating Valve, One Ignitor, One Stage
8
Two Modulating Valves, Two Ignitors, Two Stages (2V2IGN2S)
9
Figure 3: Stand-Alone Wiring - Two Modulating Valves, Two Ignitors, Two Stages
9
Figure 4: Stand-Alone Wiring - Secondary Board 2V2IGN2S
10
Two Modulating Valves, One Ignitor, One Stage (2V1IGN1S)
11
Figure 5: Stand-Alone Wiring - Two Modulating Valves, One Ignitor, One Stage
11
Figure 6: Stand-Alone Wiring - Secondary Board 2V1IGN1S
12
Two Modulating Valves, Two Ignitors, One Stage (2V2IGN1S)
13
Figure 7: Stand-Alone Wiring - Two Modulating Valves, Two Ignitors, One Stage
13
12 Relay E-BUS Expansion Module
14
Figure 8: Stand-Alone Wiring - 12 Relay E-BUS Expansion Module
14
Communications Wiring
15
One Modulating Valve, One Ignitor, One Stage (1V1IGN1S)
15
Figure 9: Communications Wiring - One Modulating Valve, One Ignitor, One Stage
15
Two Modulating Valves, Two Ignitors, One Stage (2V2IGN1S)
16
Figure 10: Communications Wiring - One Modulating Valve, Two Ignitors, One Stage
16
Two Modulating Valves, Two Ignitors, Two Stages (2V2IGN2S)
17
Figure 11: Communications Wiring - Two Modulating Valves, Two Ignitors, Two Stages
17
Figure 12: Communications Wiring - Secondary Board 2V2IGN2S
18
Two Modulating Valves, One Ignitor, One Stage (2V1IGN1S)
19
Figure 13: Communications Wiring - Two Modulating Valves, One Ignitor, One Stage
19
Figure 14: Stand-Alone Wiring - Secondary Board 2V1IGN1S
20
Inputs and Outputs
21
Table 2: MODGAS-XWR2 Inputs and Outputs
21
Sequence of Operation
23
Operating Modes and Min Mode
23
Heating Mode
24
Valve Failure, Force Mode and Master Vs. Normal
25
Lcd Screens
26
Navigation Keys
26
Figure 15: LCD Display and Navigation Keys
26
Table 3: Navigation Key Functions
26
Table 4: Editing Key Functions
26
Main Screens Map
27
Main Screens
28
Alarms Menu and Slave Alarms
30
Setpoint Screens
31
Force Valves Screens
32
Protected and Configuration Screens
33
Configuration Screens
34
Troubleshooting
35
LED Diagnostics
35
Table 5: STATUS LED Blink Codes
35
Table 6: ALARM LED Blink Codes
35
Figure 16: MODGAS-XWR2 LED Locations and Descriptions
36
Alarms
37
SAT Sensor Testing
38
Table 7: 0-3V Temperature Sensor - Voltage and Resistance for Type III Sensors
38
Table 8: 0-5V Temperature Sensor - Voltage and Resistance for Type III Sensors
39
Appendix A: Sat Sensor
40
Installation
40
Figure 17: Supply Air Temperature Sensor Installation
40
SAT Sensor Wiring Guide and Jumper Settings
41
Table 9: SAT Wiring Conditions
41
Table 10: Stand-Alone Mode SAT OPTIONS Jumper Settings
41
Table 11: Communication Mode SAT OPTIONS Jumper Settings
41
Appendix B: Modgas-Xwr Replacement
42
MODGAS-XWR2 Replacement of MODGAS-XWR
42
Figure 18: MODGAS-XWR2 Module
42
4
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AAON MODGAS-XWR2 Specifications
General
Brand
AAON
Model
MODGAS-XWR2
Category
Controller
Language
English
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