Desa VFN24R, VFN30R, VFN18R installation manual Inspecting Burners, Pilot Flame Pattern

Page 16

FIREPLACE MANUFACTURERS INC.

UNVENTED NATURAL GAS LOG HEATER

OPERATING

HEATER

Continued

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

IMPORTANT: The hand-held remote 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 re- mote 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 25 shows a correct pilot flame pat- tern. Figure 26 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool. When the thermocouple cools, the heater will shut down.

If pilot flame pattern is incorrect, as shown in Figure 26

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

•see Troubleshooting, pages 18 through 20

Pilot Burner

Thermocouple

Figure 25 - Correct Pilot Flame Pattern

Pilot Burner

Thermocouple

Figure 26 - Incorrect Pilot Flame Pattern

Control Knob in

Flame Adjustment Knob

On Position

 

 

 

 

 

OL

 

N

 

 

O

 

 

O

 

F

 

 

 

 

 

 

T

F

 

HI

ON

 

 

OLIP

 

 

 

 

 

 

 

 

OFF

 

 

 

 

 

REMOTE

 

 

 

 

Selector Switch in

 

 

 

 

Remote Position

Figure 23 - Setting the Remote Selector Switch, Control Knob, and Flame Adjustment Knob for Remote Operation

 

Increases Room

Shows

Temperature in

AUTO Mode

Temperature

 

Setting

Decreases Room

 

The Log Heater

Temperature in

AUTO Mode

will Automatically

 

Cycle between

Turns Burners

Pilot and the Heat

On or Off and

Setting that has

Allows You to

been Selected

Choose the Auto

 

 

Setting

Figure 24 - Thermostat Hand-Held Remote Control Unit Selections (GHRCTA Series Only)

16

105072

Page 15 Page 17
Image 16
Page 15 Page 17
Contents Unvented VENT-FREE Natural GAS LOG Heater What to do if YOU Smell GASSafety Information Fireplace Manufacturers INC Unvented Natural GAS LOG HeaterProduct Identification Local Codes Product FeaturesUnpacking AIR 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 Check GAS TypeIf Using Mantel Minimum Noncombustible Material ClearancesDetermining Minimum Mantel Clearance When Using a Hood Mantel ClearancesFloor Clearances Determining Minimum Mantel ClearanceInstalling Damper Clamp Accessory for Vented Operation Installing Heater Base AssemblyInstallation Items Needed Area of Various Standard Round FluesConnecting to GAS Supply Gas supply. Follow all local codesPressure Testing Heater Gas Connections Pressure Testing gas Supply Piping systemChecking GAS Connections Installing Logs Installing Front Log #1Operating 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 Cleaning Burner Injector Holder and Pilot AIR Inlet HoleFront Burner Flame Pattern LogsTroubleshooting Observed Problem Possible Cause RemedySee Wiring Diagram, Gas leak. See Warning statement Specifications Wiring DiagramReplacement Parts Service HintsIllustrated Parts Breakdown VFN18R VFN24R VFN30RParts List KEY Part Numbers VFN18R VFN24R VFN30R Description QTYAccessories 105072 Warranty Information

VFN24R, VFN18R, VFN30R specifications

Desa VFN18R, VFN24R, and VFN30R are a series of innovative heating solutions designed to meet varying heating needs while offering efficiency and reliability. Each model in the VFN range has unique features tailored to residential and commercial applications, contributing to versatile heating solutions.

One of the main characteristics of the VFN series is their impressive heating capacities. The VFN18R model is designed to deliver up to 18,000 BTU/hour, making it suitable for medium-sized spaces. The VFN24R, with its 24,000 BTU/hour output, is ideal for larger areas where more substantial heating is required. Finally, the VFN30R boasts an output of 30,000 BTU/hour, making it a powerful option for substantial heating demands, whether in warehouses, workshops, or expansive living spaces.

These models incorporate advanced technologies to maximize efficiency and performance. Each unit features a high-efficiency heat exchanger designed to produce a more significant amount of heat with lower fuel consumption. This not only translates into cost savings for the user but also reduces environmental impact by minimizing emissions.

In addition, the VFN series is built with a user-friendly interface, making operation straightforward. The units often include programmable thermostats, allowing users to set desired temperatures and schedules, optimizing energy consumption based on specific heating needs. Some models also come with remote control capabilities, offering added convenience.

Safety is a top priority for the VFN models. They come equipped with safety features such as an automatic shut-off system, which activates in case of overheating or malfunction. This contributes to peace of mind, especially in environments with high activity levels or sensitive materials.

The design of the VFN series also enhances their usability and adaptability. These units are compact and can be easily mounted on walls or placed in corners without taking up excessive space. Their aesthetic design allows them to blend seamlessly into different settings, from modern homes to traditional establishments.

In summary, the Desa VFN18R, VFN24R, and VFN30R are versatile heating solutions combining efficiency, safety, and ease of use. With varied heating capacities tailored for different needs and advanced technologies that enhance performance, these models stand out as reliable options for anyone seeking effective heating solutions. Whether for residential comfort or commercial utility, the VFN series delivers on multiple fronts.
Top Page Image Contents