14-Burner Control A3
WARNING
Electric shock hazard. Can cause injury
or death. Before attempting to perform
any service or maintenance, turn the
electrical power to unit OFF at disconnect
switch(es). Unit may have multiple power
supplies.
FLAM
E
CAI Line
Line voltage
LED
IGNITION CONTROL A3
FIGURE 4
control A3.
three trials for ignition before locking out. The lockout time
resets and provides three more attempts at ignition. Man-
ual reset after lockout requires removing power from the
control for more than 1 second or removing the thermostat
jackplugs. See table 2 for thermostat terminations and ta-
ble 3 for heating component terminations.
TABLE 1
STATUS
Slow Flash Normal operation. No call for heat
Fast Flash Normal operation. Call for heat.
Staedy On Control Internal Failure
2 Flashes
open or closed.
5 Flashes Flame sensed but gas valve not open
TABLE 2
P2 TERMINAL DESIGNATIONS
Pin # Function
1 R
2 W1 Heat Demand
3 Y Cool Demand
C Common
5 G Indoor Blower
BL OUT
7 W2 Second Stage Heat
TABLE 3
J1 TERMINAL DESIGNATIONS
Pin # Function
1
2
3 Gas Valve Common
Gas Valve Out
5
-
trol will immediately restart the ignition sequence and then
lock out if ignition is not gained after the third trial. See
-
the event of a power failure. Upon restoration of gas and
one hour.
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