Integrated Control - Aire-Flo 95AF2DF045V12B Installation Instructions Manual

Integrated Control

TERMINAL DESIGNATIONS
HUM -Humidifier (120VAC)
Line - Input (120VAC)
XFMR - Transformer (120VAC)
Cont - Continuous blower
EAC - Indoor Air Accessory (120VAC)
Cool - Cool Speed (120VAC)
Park 1 - Dead terminal for alternate speed tap
Park 2 - Dead terminal for alternate speed tap
HI Heat - High heat speed
LO Heat - Low heat speed
FIGURE 56
TABLE 13
Diagnostic Codes Red LED
LED Status
No power to control or control harware
LED Off
fault detected.
LED On
Normal operation.
Flame present with gas vavle
1 Flash
de-energized.
Pressure switch closed with combustion
2 Flashes
air inducer de-energized.
Low-fire pressure, rollout or limit
3 Flashes
switch open.
Primary limit switch open.
4 Flashes
Not used
5 Flashes
Pressure switch cycle lockout.
6 Flashes
Lockout, burners fail to light.
7 Flashes
Lockout, buners lost flame too many
8 Flashes
times.
9 Flashes Line voltage polarity incorrect.
DESCRIPTION
Troubleshooting
Make the following visual checks before troubleshooting:
1. Check to see that the power to the furnace and the inte­
grated ignition/blower control is ON.
2. The manual shutoff valves in the gas line to the furnace
must be open.
3. Make sure all wiring connections are secure.
4. Review the Sequence of Operation.
Start the system by setting thermostat above room temper­
ature. Observe system response. Then use the information
provided in this section to check the system operation.
The furnace has a built-in, self-diagnostic capability. If a
system problem occurs, a fault code is shown by a red LED
on the control. The control continuously monitors its own
operation and the operation of the system. If a failure oc­
curs, the LED will indicate the failure code. The flash codes
are presented in table 13.
Fault Code History Button
The control stores the last five fault codes in memory. A
pushbutton switch is located on the control. When the
pushbutton switch is pressed and released, the control
flashes the stored fault codes. The most recent fault code is
flashed first; the oldest fault code is flashed last. To clear
the fault code history, press and hold the pushbutton switch
in for more than 5 seconds before releasing.
High Heat State LED
A green LED is provided on the control board to indicate
high heat state
(see Table 14).
CFM LED
An amber LED is provided on the control board to display
CFM. To determine what CFM the motor is delivering at
any time, count the number of times the amber LED
flashes. Each flash signifies 100 CFM; count the flashes
and multiply by 100 to determine the actual CFM delivered
(for example: 5 flashes x 100 = 500 CFM).
High Heat State Green LED
LED Status
LED Off
LED On
LED Flashing
Page 40
TABLE 14
DESCRIPTION
No demand for high heat
High heat demand, operating normally
High heat demand, high pressure
switch not closed