SV9401/SV9402/SV9403, SV9501/SV9502/SV9503, SV9601/SV9602 SMARTVALVE™
9
69-1004—01
Fig. 11. SV9402, SV9502, SV9602 typical wiring connections in induced draft boiler application.
STARTUP AND CHECKOUT
Ignition System Control Switch
Settings
Ignition system control switch settings are:
OFF:
Prevents pilot and main gas flow through the
ignition system control.
ON:
Permits gas to flow into the control body. Under
control of the thermostat, gas can flow to the pilot and
main burners.
NOTE:
Controls are shipped with the ignition system
control switch in the ON position.
Turn on Main Burner
Follow the instructions provided by the appliance
manufacturer or turn up the thermostat to call for heat.
Perform Gas Leak Test
WARNING
Fire or Explosion Hazard. Can cause property
damage, severe injury, or death.
Check for gas leaks with soap and water solution
any time work is done on a gas system.
CAUTION
Equipment Damage Hazard.
Contact with soap and water can damage the
control. Do not spray soap and water solution on
the SmartValve housing.
Gas Leak Test
1.
Paint pipe connections upstream of the ignition
system control with rich soap and water solution.
Bubbles indicate a gas leak.
2.
If a leak is detected, tighten the pipe connections.
3.
Stand clear of the main burner while lighting to
prevent injury caused from hidden leaks that could
cause flashback in the appliance vestibule. Light
the main burner.
4.
With the main burner in operation, paint the pipe
joints (including adapters) and the control inlet and
outlet with rich soap and water solution.
5.
If another leak is detected, tighten the adapter
screws, joints, and pipe connections.
6.
Replace the part if a leak cannot be stopped.
Check and Adjust Pilot Flame
The pilot flame should envelop 3/8 to 1/2 in. (10 to 13
mm) of the tip of the flame rod. It should also be in
continual contact with the ground electrode. See Fig. 12.
If the pilot flame is small or lazy, or does not touch the
ground electrode, the inlet gas pressure may be to low, or
the pilot orifice may be partially clogged. Check and
24 VOLT
COMMON
24 VOLT
HOT
EFT
OUTPUT
24 VOLT
THERMOSTAT
OR PRESSURE
SWITCH
CIRCULATOR
R8222U RELAY
PRESSURE
SWITCH
PILOT BURNER
GROUND (THROUGH
PILOT TUBING)
24V THERMOSTAT
R8285D CONTROL CENTER
COMBUSTION
AIR BLOWER
ROLL-OUT
SWITCH
LIMIT
1
3
4
6
NO
NC
C
R
C
G
Y
W
1
3
4
6
L2
L1
(HOT)
1
1
POWER SUPPLY. PROVIDE DISCOUNNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
M13036C
