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AAON RSMD2R User Manual
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28
RSMD2R T
echnical Guide
TROUBLESHOO
TING
Head Pressur
e T
ransducer
T
able 7:
Head Pressure T
ransducer Chart
If you suspect there is a problem related to the head pressure
transducer
, measurements can be taken at the HP terminal.
See
T
able 7, this page
.
Head Pressure T
ransducer Chart
V
oltage
Pressure
V
oltage
Pressure
0.5
0
2.6
350
0.6
17
2.7
367
0.7
33
2.8
384
0.8
50
2.9
400
0.9
67
3.0
417
1.0
83
3.1
434
1.1
100
3.2
450
1.2
11
7
3.3
467
1.3
133
3.4
484
1.4
150
3.5
500
1.5
167
3.6
517
1.6
183
3.7
534
1.7
200
3.8
550
1.8
217
3.9
567
1.9
233
4.0
584
2.0
250
4.1
600
2.1
267
4.2
617
2.2
283
4.3
634
2.3
300
4.4
650
2.4
317
4.5
667
2.5
334
27
29
Table of Contents
Table of Contents
3
Overview
5
RSMD2R Overview
5
RSMD2R Dimensions
6
Figure 1: RSMD2R Dimensions
6
Installation and Wiring
7
Electrical and Environmental Requirements
7
Table 1: RSMD2R Controller Electrical and Environmental Requirements
7
Wiring
8
RSMD2R Inputs Wiring
8
Figure 2: RSMD2R Inputs Wiring
8
RSMD2R Outputs Wiring
9
Figure 3: RSMD2R Outputs Wiring
9
Inputs and Outputs
10
RSMD2R Module Inputs/Outputs Map
10
Table 2: RSMD2R Inputs and Outputs
10
RSMD2R Inputs and Outputs
11
Sequence of Operations
12
Cooling Mode, Dehumidification, and Head Pressure Control
12
Lcd Screens
13
LCD Display Screen and Navigation Keys
13
Figure 4: LCD Display and Navigation Keys
13
Table 3: Navigation Key Functions
13
Main Screens Map and RSMD2R Module Screens
14
System Status Screens
15
Sensor Status Screens
16
Setpoint Status Screens
17
Alarms Screens
18
Alarm History and Protected Screens
20
Configuration and Diagnostic Screens
21
Diagnostic Screens
22
Alarm Counts and Address Screen
23
Troubleshooting
24
LED Diagnostics
24
Figure 5: RSMD2R LED Locations
24
Suction Pressure Transducer Testing
25
Table 4: Coil Pressure/Voltage/Temp for Suction Pressure Transducers - R410-A Refrigerant
25
Copeland ® Discharge Thermistor Temperature Sensor Testing
26
Table 5: Discharge Thermistor Temperature/Resistance
26
Temperature Sensor Testing
27
Table 6: 0-5V Temperature Sensor - Voltage & Resistance for Type III Sensors
27
Head Pressure Transducer
28
Table 7: Head Pressure Transducer Chart
28
Appendix A: Condenser Options
29
Default: Two Condenser Operation
29
Figure 6: Default: Two Condenser RSMD2R Module Wiring
29
Figure 7: Prism 2 Condenser Configuration: Default Two Condenser Operations
30
Single Condenser Per Module
31
Figure 8: Single Condenser Per RSMD2R Module Wiring
31
Figure 9: Prism 2 Condenser Configuration: Single Condenser Per Module
32
Single Condenser Per Two Modules
33
Figure 10: Single Condenser Per Two RSMD2R Modules Wiring
33
Figure 11: Prism 2 Condenser Configuration: Single Condenser Per Two Modules
34
Single Condenser for Three Modules
35
Figure 12: Single Condenser for Three RSMD2R Modules Wiring
35
Figure 13: Prism 2 Condenser Configuration: Single Condenser for Three Modules
36
Two Condensers Per Two Modules
37
Figure 14: A1/B1 Wiring
37
Figure 15: A2/B2 Wiring
38
Figure 16: Prism 2 Condenser Configuration: A1/B1 and A2/B2 Condenser Configuration
39
ON/OFF Condenser Options
40
Figure 17: Prism 2 Condenser Configuration: ON/OFF Condenser Options
40
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AAON RSMD2R Specifications
General
Brand
AAON
Model
RSMD2R
Category
Control Unit
Language
English
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