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1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2
ALTERNATED LIMIT CONTROLLER LOCATION.
3
IMPORTANT:
• CONNECT L1 TO THE BLACK LEAD.
• CONNECT L2 TO THE WHITE LEAD. OTHERWISE THE S89 WILL NOT DETECT THE FLAME AND WILL LOCK OUT.
4
FACTORY TEST TERMINAL. DO NOT USE.
Fig. 2. S89E typical hookup in direct spark control system. See Fig. 8 for control system ladder diagram.
Check Out S89
NOTE: If operation is not as described below, refer to
Troubleshooting section.
1. Set thermostat to call for heat.
2. Turn on power and gas supply.
3. Igniter starts to spark and gas control opens after safe
start check (S89E: 10 seconds maximum) or safe start
check plus valve on delay (S89F: 30 seconds
minimum).
4. Main burner lights while igniter is on.
THERMOSTAT OR
CONTROLLER
DUAL VALVE
COMBINATION
S89E GAS PRIMARY
GAS CONTROL
VALVE
VALVE (GND)
24V
24V (GND)
GND (BURNER)
4
BLUE
WHITE
120 V SPARK
GENERATOR
S89E,F DIRECT SPARK IGNITION CONTROL MODULE
2
TRANSFORMER
SENSE
BLACK
3
IGNITER
GROUND
NOTE: If the gas control has been replaced or serviced,
lightoff may be unsatisfactory until air has been
purged from the gas line or the gas input and
combustion air have been adjusted (see appliance
manufacturer instructions).
5. Turn off gas supply.
6. Gas control closes.
7. The module begins the safe start check (S89E: 10
seconds maximum) or safe start check plus valve on
delay (30 seconds minimum) after which the igniter
starts and gas control opens.
8. Time system until gas control closes. S89 is now in
safety lockout. The lockout time should be within the
specifications in Table 2.
9. Open gas supply. System remains off and no gas flows
to the main burner.
5
LIMIT
CONTROLLER
L1
(HOT)
1
L2
FLAME
SENSOR
BURNER
M19836
68-0066—4
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