335224-BIM-B-1208
66
Johnson Controls Unitary Products
TABLE 42: HEAT DELAY
Heat
Fan On
Delay
Heat
Fan Off
Delay
Red
LED 8
Red
LED 4
Red
LED 2
Red
LED 1
60
180
On
On
On
On
60
90
On
On
On
Off
60
60
On
On
Off
On
60
30
On
On
Off
Off
45
180
On
Off
On
On
45
90
On
Off
On
Off
45
60
On
Off
Off
On
45
30
On
Off
Off
Off
30
180
Off
On
On
On
30
90
Off
On
On
Off
30
60
Off
On
Off
On
30
30
Off
On
Off
Off
0
60
Off
Off
On
On
0
30
Off
Off
On
Off
0
10
Off
Off
Off
On
Non-std
Non-std
Off
Off
Off
Off
TABLE 43: IGNITION CONTROL FLASH CODES
FLASHES
FAULT CONDITIONS
CHECK
STEADY ON
Control Failure
Control
HEARTBEAT
Normal Operation
1
Not Applicable
2
Pressure Switch
Stuck Closed
Pressure Switch
3
Pressure Switch Failed
To Close
Venter Pressure Switch
Vent Blocked
4
Limit Switch Open
Main Limit
AUX Limit
5
Flame Present With Gas
Off First Stage Gas Valve
Energized With W1 Off
Second Stage Gas Valve
Energized With First
Stage
Gas Valve Off
Gas Valve
6
Ignition Lockout
Gas Flow
Gas Pressure
Gas Valve
Flame Sensor
STEADY OFF
No Power Or Control
Failure
24VAC or Control
TABLE 44: REHEAT CONTROL BOARD FLASH
CODES
FLASH CODES
DESCRIPTION
On Steady
This is a Control Failure
1 Flash
Not Applicable
2 Flashes
Hot Gas Reheat is on with Y1 Output
(No Call for Cooling)
3 Flashes
Y1, Y2, and Hot Gas Reheat is on because of
a call for Y1 and Humidistat. See alt operation
OFF
No Power or Control Failure
