Dvc-35Ip Intermittent Pilot System Troubleshooting Sequence - Empire Heating Systems DVC-35-1SPP Installation Instructions And Owner's Manual

DVC-35IP INTERMITTENT PILOT SYSTEM TROUBLESHOOTING SEQUENCE

START
• Turn OFF Gas Supply
• Disconnect System Control
Harness
• Set Thermostat to Call for
Heat
Check for Proper Voltage at
Control Harness (See Inset A
-Voltage Should be 24V
Between Thermostat 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
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IP SYSTEM TROUBLESHOOTING SEQUENCE
SmartValve™ System Troubleshooting Sequence
Note: Before Troubleshooting, Become Familiar
with the Sequence of Operation
CHECK
• Line Voltage Power
• Low Voltage Transformer
NO
• Limit Controller
• Thermostat
• Wiring
Unplug Pilot Burner Cable.
Measure Voltage at SmartValue
NO
HSI Element Output (See Inset B)
24V Nominal
Replace Igniter/Flame Rod Assembly
Reconnect Pilot Burner Cable
NO
• Check that Pilot Gas is Flowing
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
NO
• Check that Pilot Flame Makes Good
Contact with Pilot Burner Flame
Rod
• Check for Good Electrical
Connection Through the Pilot
Tubing
• If Both of the Above are Good,
Replace Igniter/Flame Rod
Cycle Thermostat OFF and Back ON
Main Burner Lights
NO
YES
NO
YES
NO
YES
NO
INSET A
24Volt
Thermostat
24
Volts
24 Volt
24
Common
Volts
INSET B
HSI
Terminals
Replace SmartValve Control
Reconnect Pilot Burner Cable
Replace SmartValve Control
Check Transformer and Line
Volt Supply
Replace SmartValve Control
End View
of Control
Harness
Connector
EFT
Output
24 Volt
Hot
12430-3-0903