Optional Vav Control Board Flash Codes; Vav Control Board Flash Codes - York SUNLINE MagnaDRY WR300 Installation Manual

OPTIONAL VAV CONTROL BOARD FLASH CODES

Flash codes are also utilized by the VAV add-on board
to aid in troubleshooting optional VAV applications.
Flash codes are displayed by a red LED located near
the center of the board using a short on/off cycle
(approximately 200-ms on and 200-ms off).
To verify that the board is functioning correctly, the
LED will display a repetitive 1 second on, 1 second off
"heartbeat". Do not confuse this "heartbeat" with the
error flash codes shown in the table below. To prevent
confusion, a 1-flash, flash code is not used.
Subject to change without notice. Printed in U.S.A.
Copyright © 2008 by Johnson Controls, Inc. All rights reserved.
TABLE 38: VAV CONTROL BOARD FLASH CODES
FLASH CODE
On Steady
2 Flashes
3 Flashes
4 Flashes
5 Flashes
6 Flashes
7 Flashes
8 Flashes
9 Flashes
10 Flashes
11 Flashes
12 Flashes
13 Flashes
14 Flashes
15 Flashes
Johnson Controls Unitary Products
5005 York Drive
Norman, OK 73069
Control Failure
1 Flash Not Applicable
Loss of Communication with UCB
Space Sensor Failure
SAT Sensor Failure
RAT Sensor Failure
OAT Sensor Failure
OH Sensor Failure
RH Sensor Failure
IAQ Sensor Failure
OAQ Sensor Failure
APS Switch Failure
Limit 2 Switch Open
Purge
VFD Input Failure
Dirty Filter Switch
OFF No Power or Control Failure
Supersedes: 284813-YIM-B-0707
DESCRIPTION
284813-YIM-C-1008