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START
Turn OFF Gas Supply
?
Disconnect System Control
?
Harness
Set Gas Control to Call for
?
Heat
Check for Proper Voltage at
Control Harness (See Inset A -
Voltage Should be 24V
Between Switch and 24V
Common, and 24V Between
24V Common and 24V Hot.)
YES
Plug Harness into SmartValve
Control
Wait for Internal Check Delay
(SV9501)
Igniter Warms UP and Glows
Red
Note: Igniter Will Cycle OFF
and Back ON Once During the
90 Second Ignition Trial
YES
Turn On Gas Supply
?
Pilot Burner Lights
?
YES
Main Valve Opens and
Main Burner Lights
YES
System is Okay
37134-6-0520
IP SYSTEM TROUBLESHOOTING SEQUENCE
TM
SmartValve System Troubleshooting Sequence
Note: Before Troubleshooting, Become Familiar
with the Sequence of Operation
Check
NO
Line Voltage Power
Ÿ
Low Voltage Transformer
Ÿ
Limit Controller
Ÿ
Wiring
Ÿ
Unplug Pilot Burner Cable.
Measure Voltage at SmartValue HSI
NO
Element Output (See Inset B) 24V
Nominal
Replace Igniter/Flame Rod
Assembly
Reconnect Pilot Burner Cable
Check that Pilot Gas is Flowing
NO
Wait to Assure Pilot Gas Tubing is
Purged.
Measure Voltage Between 24V Hot
and 24V Common Leads to
SmartValve Control. Must Measure
at Least 19.5 VAC with Igniter
Powered. See Inset A to Identify
Proper Lead. This Check Must be
Done with the SmartValve Control
Connected and Igniter Powered.
Replace Igniter/Flame Rod
Assembly
Check that Pilot Flame Makes
Ÿ
Good Contact with Pilot Burner
NO
Flame Rod
Check for Good Electrical
Ÿ
Connection Through the Pilot
Tubing
If Both of the Above are Good,
Ÿ
Replace Igniter/Flame Rod
Cycle Gas Control OFF and Back
ON
Main Burner Lights
INSET A
24 Volt
24
Volts
24 Volt
Common
Volts
INSET B
HSI
Terminals
NO
Replace SmartValve Control
Reconnect Pilot Burner Cable
NO
Replace SmartValve Control
Check Transformer and Line Volt
NO
Supply
NO
Replace SmartValve Control
End View
of Control
Harness
Connector
EFT
Output
24 Volt
Hot
24
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