Table of Contents
Advertisement
If Run LED shows...
2 flashes per second
5 flashes per second
5 flashes per second
7 flashes per second
14 flashes per second
On
NOTE If you resolve the issue but the Error LED does not turn off, cycle power to the controller.
Possible delay before control program starts
•
When you first apply power to the Zone Ctrl II, it waits for up to 3 minutes to receive a time/date broadcast
from its BACnet router. The Zone Ctrl II begins to run the control program only after it receives the time/date
or when the 3 minute waiting period expires. If the Zone Ctrl II does not receive a time/date broadcast, it
keeps the default setting of 6/12/2002 10:00:00 (am).
•
The damper actuators' automatic full-range calibration on startup is staggered to prevent system high
pressure. This calibration delay is based on rotary switch addresses.
Delay = 20 x (rotary address mod 16) seconds. The minimum delay is 0 and the maximum is 300 seconds.
Zone Ctrl II and
VAV Zone II Secondary Duct Installation and Start-up Guide
Error! No text of specified style in document.
And Error LED shows...
On
On
Off
7 flashes per second,
alternating with Run LED
14 flashes per second,
alternating with Run LED
On
43
Status is...
Obtain a Module Status Report (Modstat) to
determine which of the following occurred:
•
Exec halted after frequent system errors
•
Control programs halted
•
Zone Ctrl II stopped communicating with the
VAV Zone II Secondary Duct
Exec start-up aborted, Boot is running
Firmware transfer in progress, Boot is running
Ten second recovery period after brownout
Brownout
Failure. Try the following solutions:
•
Turn the Zone Ctrl II off, then on.
•
Format the Zone Ctrl II.
•
Download the Zone Ctrl II.
•
Replace the Zone Ctrl II.
CARRIER CORPORATION ©2019
Troubleshooting
All rights reserved
Advertisement
Table of Contents
