Vanguard Heating UNVENTED (VENT-FREE) NATURAL GAS LOG HEATER Inspecting Burners, Main Burner

Page 17

OWNER’S MANUAL

OPERATING

HEATER

Continued

IMPORTANT: This remote control has been specially engineered to take an air temperature sample ev- ery 5.5 minutes in the AUTO mode. It will not respond immediately to the temperature setting being turned up or down.

IMPORTANT: The hand-held re- mote control unit must be near the heater. Do not keep the hand-held remote control unit too close the heater. The thermostat on the hand-held remote control unit will heat up too quickly and turn the heater off.

Flame Adjustment Knob

3.Use the STATUS button on the hand- held remote control unit to see the operation mode being used and the temperature setting selected. A red light will come on beside the opera- tion mode being used when the sta- tus button is pressed.

4.To turn the burner off when operating in the manual mode, press the OFF button. If operating in the auto mode, press the MAN button, then press the OFF button. The pilot will remain lit. IMPORTANT: To turn the pilot off, manually turn the control knob on the heater to the OFF position.

Control Knob in

On Position

INSPECTING

BURNERS

Check pilot flame pattern and burner flame patterns often.

PILOT FLAME PATTERN

Figure 22 shows a correct pilot flame pat- tern. Figure 23 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touch- ing the thermocouple. This will cause the thermocouple to cool. When the thermo- couple cools, the heater will shut down.

If pilot flame pattern is incorrect, as shown in Figure 23

turn heater off (see To Turn Off Gas to Appliance, page 16)

see Troubleshooting, pages 19 through 21

Pilot Burner

Thermocouple

IH

 

F

PIL

ON

 

O

 

O

 

T

OFF

 

O

 

 

 

 

N

REMOTE

 

 

 

LO

 

 

 

Selector Switch in Remote Position (Optional

Remote Control)

Figure 20 - Setting the Selector Switch, Control Knob, and Flame Adjustment Knob for Remote Operation

Figure 22 - Correct Pilot Flame Pattern

Pilot Burner

Thermocouple

 

Shows Temperature Setting

 

 

HI

 

 

TEMP

Allows Burner to be Turned

 

 

On and Off with the Hand-

 

 

Held Remote Unit.

MAN

LO ON

The log heater will

AUTO

OFF

automatically cycle between

 

 

pilot and the heat setting that

 

STATUS

has been selected.

 

 

Increases Room Temperature

Decreases Room Temperature

Turns Burner On and Off

Shows Current Operation Mode

Figure 23 - Incorrect Pilot Flame Pattern

BURNER PRIMARY AIR HOLES

Air is drawn into the burner through the holes in the fitting at the burner entrance. These holes may become blocked with dust or lint. Periodically inspect these holes for any blockage and clean if needed. Blocked air holes will create soot.

MAIN BURNER

Periodically inspect all burner flame holes with the heater running. All slotted burner flame holes should be open with yellow

Figure 21 - Thermostat Hand-Held Remote Control Unit Selections

flame present. All round burner flame holes should be open with a small blue flame present. Some burner flame holes may be- come blocked by debris or rust, with no flame present. If so, turn off heater and let cool. Either remove blockage or replace burner. Blocked burner flame holes will create soot.

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Contents What to do if YOU Smell GAS OWNER’S Operation and Installation Manual18, 24, 30, and 36 Remote Ready Model Patent PendingVanguard Flame MAX Unvented Natural GAS LOG Heater Safety InformationRemote Control Accessories Product FeaturesProduct Identification Local CodesProviding Adequate Ventilation AIR for Combustion and VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining if You Have a Confined or Unconfined Space AIR for Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Ventilation Air From Inside Ventilation AIRBuilding Ventilation Air From OutdoorsInstallation InstallationCheck GAS Type Minimum Wall and Ceiling Clearances see FigureMinimum Noncombustible Material Clearances If Using MantelIf Not Using Mantel Mantel Clearances Determining Minimum Mantel Clearance When Using a HoodFloor Clearances Determining Minimum Mantel ClearanceChimney Minimum Permanent Height ft Flue Opening sq. ins Installing Damper Clamp Accessory for Vented OperationInstalling Heater Base Assembly Attaching Flexible Gas Hose to Heater Installation Items NeededWrench when connecting it to gas piping and/or fittings Connecting to GAS SupplyPressure Testing Heater Gas Connections Pressure Testing Gas Supply Piping SystemChecking GAS Connections Test Pressures In Excess Of 1/2 PsigPlace lava rock around base of heater Installing LogsLighting Instructions For Your Safety Read Before LightingOperating Heater Optional Remote Operation Manual Lighting ProcedureTo Turn OFF GAS To Appliance Pilot Flame Pattern Inspecting BurnersBurner Primary AIR Holes Main BurnerLogs Cleaning and MaintenanceCleaning Burner Injector Holder and Pilot AIR Inlet Hole Observed Problem Possible Cause TroubleshootingObserved Problem Possible Cause Remedy Gas leak. See Warning statement at top TopIllustrated Parts Breakdown VYD18NRA, VYD24NRA VYD30NRA, and VYD36NR Parts ListSpecifications Wiring Diagram Replacement PartsService Hints Technical ServiceAccessories International Warranty Information