Startup And Checkout - Honeywell S8910U Installation Instructions And Safety Information

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
MV
COMBINATION
GAS CONTROL
MV
1 1
2
3
4
5

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.
Maintenance frequency must be determined individually
for each application; see Maintenance section.
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. Gas leak test must be done as described in
following steps 1 and 6 for initial installation and
any time work is done involving the gas piping.
5 5 5
BURNER
GROUND
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
MAKE SURE L1 AND L2 ARE NOT REVERSED.
ALTERNATE LIMIT CONTROLLER LOCATION.
SENSE ROD WILL BE PRESENT IF REMOTE SENSE S89/S890 MODEL. SEE TABLE 3.
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.
CUT QUICK-CONNECTS OFF WIRES AND REPLACE WITH 1/4 IN. QUICK-CONNECTS (PROVIDED).
Fig. 5. Typical hookup when S8910U replaces Honeywell S89/S890.
S8910U UNIVERSAL HOT SURFACE IGNITION MODULE
S8910U HOT SURFACE IGNITER CONTROL
5
THERMOSTAT OR
2
CONTROLLER
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
piping has been disturbed.
GAS LEAK TEST: Paint the gas control gasket edges and
all the pipe connections upstream of the gas control with a
rich soap and water solution. Bubbles indicate gas leaks.
Tighten the joints and screws or replace the component to
stop a gas leak. Recheck with soap and water solution.
Step 2: Verify control system ground.
The ignition module must share a common ground with
the main burner. The burner serves as the common
grounding area to assure reliable flame detection. If
there is not good metal-to-metal contact between the
burner and ground, run a lead from the burner to
ground.
Step 3: Review normal operating sequence and module
specifications. See Operation and Application sections.
11
FLAME
SENSOR
4 4
LIMIT
CONTROLLER
3
HOT
SURFACE
IGNITER
L1
(HOT)
L2
1
M8530B
69-0845—2