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AAON ASM01670 User Manual

AAON ASM01670
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34MHGRVX-B2 Module Technical Guide
Q: Are the communications wired and congured correctly?
A: For the MHGRVX-B2 operating as Stand-Alone, the
following should be true:
1. The MHGRVX-B2 is connected to the Reheat Expansion
Module with an E-BUS cable and the connections are
secure.
2. The MHGRVX-B2 must be congured as S/A LOCKED
in the MHGRVX-B2 Conguration Screens. To conrm
this, press the ENTER key once from the main screen.
It should display S/A MODE LOCKED.
3. The MHGRVX-B2 must be congured for EXP VLVS
ENABLED in the MHGRVX-B2 Conguration Screens.
If this is true, the COMM LED on the MHGRVX-B2
will blink once every second.
A: For the MHGRVX-B2 operating with a VCCX2/VCB-X, the
following should be true:
1. The VCCX2 or VCB-X, MHGRVX-B2, and Reheat
Expansion Module are connected to each other with an
E-BUS cable and the connections are secure.
2. The MHGRVX-B2 must be configured as S/A
AUTODECT in the MHGRVX-B2 Configuration
Screens. To conrm this, press the ENTER key once
from the main screen. It should display COMM MODE.
3. The MHGRVX-B2 must be congured for EXP VLVS
ENABLED in the MHGRVX-B2 Conguration Screens.
If this is true, the COMM LED on the MHGRVX-B2
will blink once every second.
Q: How do I change congurations for the valve expansion
modules?
A: Congurations will always match how the MHGRVX-B2 is
congured. The congurations are as follows:
1. Valve Size (hidden screen conguration)
2. Cooling Flush Time (setpoint screens when Stand-
Alone)
3. Reheat Flush Time (setpoint screens when Stand-Alone)
4. Reheat Flush Reset Position (cannot be changed by user)
APPENDIX D: FREQUENTLY ASKED QUESTIONS
Troubleshooting

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AAON ASM01670 Specifications

General IconGeneral
BrandAAON
ModelASM01670
CategoryController
LanguageEnglish

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