Desa FVFM27NR/PR, VYM27NR/PR installation manual Inspecting Burners, Pilot Flame Pattern

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FLAME-MAX®

UNVENTED GAS LOG HEATER

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 to the heater. The thermostat on the hand- held remote control unit will heat up too quickly and turn the heater off.

3.To turn the burner off, press the AUTO/ON/OFF button until OFF lights. The pilot will remain lit.

IMPORTANT: To turn the pilot off, manually turn the control knob on the heater to the OFF position.

INSPECTING

BURNERS

Check pilot flame pattern and burner flame patterns often.

PILOT FLAME PATTERN

Figure 27 shows a correct pilot flame pattern. Figure 28 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touch- ing the thermocouple. When the thermo- couple cools, the heater will shut down.

Flame Adjustment Knob

Control Knob in

On Position

IH

 

F

PIL

ON

 

O

O

F

T

 

 

OFF

 

O

 

 

 

 

N

REMOTE

 

 

 

 

 

LO

 

 

 

If pilot flame pattern is incorrect, as shown in Figure 28

turn heater off (see To Turn Off Gas to Appliance, page 15)

see Troubleshooting, pages 18 through 20

Pilot Burner

Thermocouple

Selector Switch in Remote Position

(Optional Remote Control)

Figure 25 - Setting the Selector Switch, Control Knob, and Flame Adjustment Knob for Remote Operation

Figure 27 - Correct Pilot Flame Pattern (Propane/LP Pilot Shown)

Shows Temperature Setting

The Log Heater will Automatically Cycle between Pilot and the Heat Setting that has been Selected

Increases Room

Temperature in

AUTO Mode

Decreases Room

Temperature in

AUTO Mode

Turns Burners On or Off and Allows You to Choose the Auto Setting

Pilot Burner

Thermocouple

Figure 28 - Incorrect Pilot Flame Pattern (Propane/LP Pilot Shown)

Figure 26 - Thermostat Hand-Held Remote Control Unit Selections (GHRCTA only)

For more information, visit www.desatech.com

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Contents OWNER’S Operation and Installation Manual FLAME-MAXVYM27NR/PR FVFM27NR/PR What to do if YOU Smell GASSafety Information FLAME-MAX Unvented GAS LOG HeaterProduct Features Remote ControlAccessories Product IdentificationAIR for Combustion and Ventilation Providing Adequate VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining FRESH-AIR Flow for Heater Location AIR for Combustion VentilationDetermining if You Have a Confined or Unconfined Space Ventilation AIR Ventilation Air From InsideBuilding Ventilation Air From OutdoorsInstallation Installation ClearancesCheck GAS Type Minimum Fireplace Clearance to Combustible MaterialsMinimum Noncombustible Material Clearances Determining Minimum Mantel Clearance When using a Hood Mantel ClearancesFloor Clearances Determining Minimum Mantel ClearanceInstalling Heater Base Assembly Installing Damper Clamp Accessory for Vented OperationInstallation Items Needed Connecting to GAS SupplyChecking GAS Pressure Testing Gas Supply Piping SystemConnections Installing Logs Pressure Testing Heater Gas ConnectionsOperating Heater For Your Safety Read Before LightingLighting Instructions To Turn OFF GAS To Appliance Manual Lighting ProcedureOptional Remote Operation Inspecting Burners Pilot Flame PatternCleaning and Maintenance Troubleshooting Observed Problem Possible CauseObserved Problem Possible Cause Remedy Gas leak. See Warning statement at Wiring Diagram Replacement Parts SpecificationsService Hints Technical ServiceIllustrated Parts Breakdown VYM27NR FVFM27NR VYM27PR FVFM27PRParts List Parts Available not ShownWALL-MOUNT Thermostat Switch GWMT1 Receiver and HAND- Held Remote Control KIT GhrcWALL-MOUNT ON/OFF Switch GWMS2 Cleaning KIT GCKOwners Registration Form Postage Required 108382 Warranty Information