Honeywell INNCOM e7w Troubleshooting Manual page 13

receive and transmit in either of the RF devices Cached NVRAM. It is beyond the scope of this
document to cover changing Cached NVRAM. Contact an Inncom Application Engineer.
Troubleshooting Example:
In the below troubleshooting example , a PC502 (Address 227) is used as the RF to S5 Bus gateway to
pass HVAC messages between the S5 bus connected X47 (Address 224) and e7w , and the e7w is not
controlling room HVAC . There is also an RF Evora button control installed in the room that is
powered from S5 bus 12VDC. All devices are powered 12VDC from the S5 bus being supplied from a
120VAC VAC powered X47 installed in the HVAC unit. The HVAC unit is a 4 Pipe FCU.
Address
224
First verify 2 way communication between the e7w and PC502 and e7w and the X47 using the e7w Pn6
(Ping) test. Appendix 3 goes over the e7w Ping test. The PC502 address is supposed to be 227 and the
X47 is supposed to be 224
If Pinging the PC502 from the e7w fails:
•
Verify the PC502 is installed and is getting 12VDC power from the S5 bus connection from the
X47.
•
Verify the e7w is set to the correct Room ID, PAN ID and RF Channel that the e7w and PC502
should be using. Appendix 2 goes over viewing/changing the e7w Room ID, PAN ID and RF
Channel
•
If it is installed and powered and you can't Ping the PC502, try re-binding the PC502 using the
e7w to set the correct Room ID, PAN ID and RF Channel into the PC502. Refer to applicable
commissioning documentation.
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Honeywell Restricted
13 April 2020
Version 9.0