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TERMINAL CROSS
REFERENCE
S8910U
S89/S890
GND(BURNER)
GND (BURNER)
24V (GND)
24V (GND)
VALVE (GND)
VALVE (GND)
24V
24V
VALVE
VALVE
L2
L2
L1
L1
HSI
HSI
HSI
HSI
SENSE
SEN
COMBINATION
GAS CONTROL
1
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
MAKE SURE L1 AND L2 ARE NOT REVERSED.
2
ALTERNATE LIMIT CONTROLLER LOCATION.
3
SENSE ROD WILL BE PRESENT IF REMOTE SENSE S89/S890 MODEL. SEE TABLE 3.
4
WHEN S89/S890 IS A REMOTE SENSE MODEL, REMOVE JUMPER QUICK-CONNECT FROM S8910U. CUT WIRE AT CIRCUIT
BOARD AND DISCARD. CONNECT FLAME ROD LEAD WIRE TO SENSE. SEE TABLE 3.
5
CUT QUICK-CONNECTS OFF WIRES AND REPLACE WITH 1/4 IN. QUICK-CONNECTS (PROVIDED).
STARTUP AND CHECKOUT
Check out the gas control system:
• At initial installation of the appliance.
• As part of regular maintenance procedures.
• At maintenance intervals determined by the
application.
• As the first step in troubleshooting.
• Any time work is done on the system.
Determine maintenance frequency individually for each
application; see Maintenance section.
S8910U HOT SURFACE IGNITER CONTROL
S8910U Hot Surface Ignition
WARNING
Input Voltages = 120 & 24 VAC, 60 Hz
HSI = 120V, 5A max.
Valve = 24V, 2A max.
Explosion Hazard. Can cause
Total 24V Load = 0.4 + valve load
serious injury or death.
U.S. Patent 8,085,521
Disconnect power before ser-
Prepurge Time = 32 Sec.
vicing. This device can mal-
Igniter Warm Up Time = See Inst. Sh. 34-00008
function if it gets wet. Never
Ignition Trial Time - See Selection Tab
try to use a device that has
Number of Trials - See Selection Tab
been wet -- replace it.
Between Trial Time - 96 Sec.
5
BURNER
GROUND
MV
MV
THERMOSTAT OR
CONTROLLER
Fig. 4. Typical hookup when S8910U replaces Resideo S89/S890.
Golden Valley, MN 55422
Assembled in Mexico
Selection Tab
LED States
Trial count
ON
Control Status
OFF
= 1 try (default)
Device damaged-
ON
Trial count
replace control
OFF
= 3 tries
Ignition lockout Red Blink
ON
Trial for ign. period
Normal operation
OFF
= 4 seconds (default)
Weak flame signal
Trial for ign. period
ON
See Instruction Sheet 34-00008
OFF
= 7 seconds
for additional states
1
2
3
4
120 VAC
120 VAC
See
NOTE: ALWAYS apply
NEUTRAL
HOT
LED
this control as instructed
States
in Instruction Sheet
34-00008
SYSTEM SETUP
LIMIT
CONTROLLER
2
WARNING
FIRE OR EXPLOSION HAZARD.
CAN CAUSE PROPERTY DAMAGE, SEVERE
INJURY, OR DEATH.
1. If you smell gas or suspect a gas leak, turn off gas at
the manual service valve and evacuate the building.
Do not try to light any appliance; do not touch any
electrical switch or telephone in the building until
you are sure no spilled gas remains.
2. Perform a gas leak test, as described in Steps 1 and
6 in the Startup and Checkout section, for initial
installation and any time work is done involving the
gas piping.
Step 1: Perform visual inspection.
a. With power off, make sure all wiring connections
are clean and tight.
b. Turn on the power to the appliance and the
S8910U.
c. Open the manual shutoff valves in the gas line to
the appliance.
d. Test for a gas leak upstream of the gas control if
the piping has been disturbed.
13
Color Pattern
Red
Steady
®
Green
Steady
C
US
Green
AUTO
Blink
IGNITION
SYSTEMS
ANSI Z21.20
32304204-001 Rev. A
See
Instructions
for
Single/Dual
FLAME
Rod
Applications
SENSOR
4
4
HOT
SURFACE
IGNITER
L1
(HOT)
L2
1
S8910U3000
3
M8530E
34-00008EFS—03
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