Vermont Casting 33LDVR, 43LDVR Troubleshooting the Gas Control System, Normal Operation, 10007317

Models: 36LDVR 33LDVR 39LDVR 43LDVR

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Troubleshooting the Gas Control System

LDVR Series Direct Vent Gas Fireplace

Troubleshooting the Gas Control System

SIT 822 Valve with Synetek Electronic Control

Operating Diagram

Normal Operation

Abnormal Operation

ON/OFF Switch Closed?

YES

Safe Start Check On?

YES

0 Sec Purge

Ignition Trial: 30 sec Spark ON Pilot Valve ON. Has Flame been Detected within 30 sec?

Spark Off. Main Valve ON.

Pilot Flame Continuously

Monitored

Pilot Flame Sense OK?

ON/OFF Switch Opened?

YES

Pilot and Main Valve OFF?

YES

NO

NO

NO

5 sec Inter-Trial Delay

LED: Steady Flash?

Lockout: Flame detected out of sequence Reset by interrupting ON/OFF switch or power for 10 sec

LED: 5 Flashes?

Normal Operation Reverse power cord polarity

LED: 2 Flashes?

Reset by interrupting ON/OFF switch for power for 10 sec

YES

Pilot, Valve OFF, Spark OFF

Have three ignition trials been completed? NO

LED: 3 Flashes?

Lockout: Flame Loss

Reset by interrupting ON/OFF switch or power for 10 sec

YES

Main Valve OFF, Spark ON

 

 

Has flame been detected within 30 sec?

 

 

 

 

 

 

 

 

 

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

 

Have three pilot flame losses been

 

YES

 

 

detected?

 

 

 

 

 

 

 

 

 

 

 

0 sec Post Purge?

Heating Cycle Complete LED:

OFF

30

10007317

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Vermont Casting 33LDVR Troubleshooting the Gas Control System, LDVR Series Direct Vent Gas Fireplace, Normal Operation