Honeywell INNCOM e7w Troubleshooting Manual page 14

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Verify the Orange "S5 Data" wire of the S5 bus was not connected to S5 bus connection of the
Evora. The Evora has a radio and if it is S5 bus connected to the PC502 which also has a radio,
an "RF Loop" condition will exist that will impact S5 bus communication.
If the PC502 is fine and can be pinged from the e7w but pinging the X47 from the e7w fails:
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Verify the 3 wire S5 bus connection between X47 and PC502 and that the S5 Orange "S5 bus
data" wire is connected.
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Verify the X47 address is actually 224. How was the X47 commissioned ? Did it get pushed its
configuration from EngINN correctly, or was it set to be 224 via setting an I/O Map into the
X47 correctly?
Was it supposed to be Address 224 per the software loaded into it?
As a last resort, you could use the e7w to Teach the X47 Address 224 using the e7w "Adr"
parameter , then see if it can be Pinged from the e7w. This would point to incorrect software
in the X47 or incorrect commissioning of the x47.
•
Verify the Orange "S5 Data" wire of the S5 bus was not connected to S5 bus connection of the
Evora. The Evora has a radio and if it is S5 bus connected to the PC502 which also has a radio,
an "RF Loop" condition will exist that will impact S5 bus communication.
If both the PC502 and X47 ping correctly with the expected addresses, but the e7w is not controlling
Room Temperature or Fan Speed:
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Verify the e7w "PA" (Partner Address) Parameter value. The X47 in this example uses address
224, so the e7w "PA" parameter needs to be set to 224. The e7w default PA parameter value
is 14 , so it may not have been changed to 224. Enter Service Parameter mode on the e7w
and go to the "PA" parameter and verify it is set to 224 and see if this restores HVAC control
from the e7w. Appendix 5 covers using the PA parameter.
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If the e7w PA parameter was correct , it is possible that the X47 was incorrectly configured and
is not correctly controlling its 5 output relays properly to control the particular HVAC unit
model. Or there is an issue with the HVAC unit itself or the wiring between the X47 and the
HVAC unit control terminals.
Use the e7w to problem split the issue. Refer to the "Using the e7w to read the status of
the HVAC Controller's 5 Output relays" section of this document to determine if the X47
relays are actually changing in response to e7w Target Temperature changes.
If it is apparent that the X47 is reacting and calling for its relays to change, the issue is most
likely the actual HVAC unit or the wiring between the X47 relays and the HVAC units wiring
terminals.
If the X47 is never reacting and calling for its relays to change , verify the X47 is not configured
to accept HVAC control commands for Heating/Cooling and Fan Speeds from another HVAC
controller instead of deciding itself.
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Honeywell Restricted
13 April 2020
Version 9.0