Desa B, C, CFS24NVC VS30N installation manual Maintenance

Page 20

DESA INTERNATIONAL

UNVENTED NATURAL GAS LOG HEATER

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

One or both burners do not light after ODS/

1.

Inlet gas pressure is too low

1.

Contact local natural gas company

pilot is lit

2.

Burner orifice(s) clogged

2.

Clean burner(s) (see Cleaning and Main-

 

 

 

 

tenance, page 18) or replace burner

 

 

 

 

orifice(s)

 

3.

Mislocated crossover tube

3.

Contact qualified service person

 

4.

Burner orifice(s) diameter is too small

4.

Replace burner orifice(s)

 

 

 

 

 

 

Delayed ignition of one or both burners

1.

Manifold pressure is too low

1.

Contact local natural gas company

 

2.

Burner orifice(s) clogged

2.

Clean burner(s) (see Cleaning and Main-

 

 

 

 

tenance, page 18) or replace burner

 

 

 

 

orifice(s)

 

3.

Mislocated crossover tube

3.

Contact qualified service person

 

 

 

 

 

 

Burner backfiring during combustion

1.

Burner orifice is clogged or damaged

1.

Clean burner (see Cleaning and Main-

 

 

 

 

tenance, page 18) or replace burner

 

 

 

 

orifice

 

2.

Damaged burner

2.

Replace damaged burner

 

3.

Gas regulator defective

3.

Replace gas regulator

 

 

 

 

 

 

Yellow flame in front burner during burner

1.

Not enough air

1.

Check burner(s) for dirt and debris. If

combustion

 

 

 

found, clean burner(s) (see Cleaning and

 

 

 

 

Maintenance, page 18)

 

2.

Gas regulator defective

2.

Replace gas regulator

 

 

 

 

 

 

Slight smoke or odor during initial operation 1. Residues from manufacturing processes and logs curing

1.Problem will stop after a few hours of operation

Heater produces a whistling noise when

1.

Turning control knob to HI position

1.

Turn control knob to LO position and

burners are lit

 

when burners are cold

 

let warm up for a minute

 

2.

Air in gas line

2.

Operate burners until air is removed

 

 

 

 

from line. Have gas line checked by lo-

 

 

 

 

cal natural gas company

 

3.

Air passageways on heater blocked

3.

Observe minimum installation clear-

 

 

 

 

ances (see pages 7 through 9)

 

4.

Dirty or partially clogged burner

4.

Clean burners (see Cleaning and Main-

 

 

orifice(s)

 

tenance, page 18) or replace burner

 

 

 

 

orifice(s)

 

 

 

 

 

Moisture/condensation noticed on windows

1.

Not enough combustion/ventilation air

1.

Refer to Air for Combustion and Venti-

 

 

 

 

lation requirements (page 4)

White powder residue forming within burner box or on adjacent walls or furniture

1.When heated, vapors from furniture pol- ish, wax, carpet cleaners, etc. turn into white powder residue

1.Turn heater off when using furniture polish, wax, carpet cleaners, or similar products

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Contents Unvented VENT-FREE Natural GAS LOG Heater What to do if YOU Smell GASSafety Information Desa International Unvented Natural GAS LOG HeaterProduct Features Product IdentificationLocal Codes UnpackingAIR for Combustion and Ventilation Providing Adequate 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 Ventilation Air From InsideBuilding Ventilation Air From OutdoorsInstallation Installation ClearancesCheck GAS Type Vent-Free Operation OnlyIf 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 Attaching Flexible Gas Hose to Heater Gas RegulatorChecking GAS Connections Pressure Testing Gas Supply Piping SystemPressure Testing Heater Gas Connections Installing Logs Lighting Instructions For Your Safety Read Before LightingOperating Heater Manual Lighting Procedure To Turn OFF GAS To ApplianceThermostat Control Operation Shutting Off HeaterVariable Control Operation Front Burner Flame Pattern Inspecting BurnersPilot Flame Pattern Logs Cleaning and MaintenanceCleaning Burner Injector Holder and Pilot AIR Inlet Hole Troubleshooting Observed Problem Possible Cause RemedyMaintenance, Gas leak. See Warning statement at Optional Positioning of Thermostat Sensing Bulb For Masonry and FACTORY-BUILT Metal FireplaceSpecifications Replacement PartsService Hints Technical ServiceIllustrated Parts Breakdown Variable Manually Controlled Split OAK ModelsParts List Variable MANUALLY- Controlled Split OAK ModelsDesa International Unvented Natural GAS LOG Heater THERMOSTAT- Controlled Split OAK Models VS18NTB VS24NTB VS30NTBAccessories 104414 Warranty Information International

CFS24NVC VS30N, B, C specifications

Desa CFS24NVC VS30N, B, C is a sophisticated heating solution designed to deliver comfort and efficiency in various settings. This series is particularly noted for its advanced features and technologies that cater to user needs while ensuring optimal performance.

One of the standout characteristics of the CFS24NVC series is its versatility in operation. Whether it is a larger commercial space or a cozy residential area, these heaters can adapt their output to suit different environments. The VS30N model, for instance, provides a strong heating capacity, making it ideal for workshops or larger living spaces. The adjustable settings allow users to match the heater's performance with the current requirements, promoting energy efficiency and cost savings.

Furthermore, the CFS24NVC series employs advanced heating technologies that enhance performance. The inclusion of ceramic heating elements enables rapid heat distribution, ensuring that spaces are warmed up quickly. This technology not only improves efficiency but also enhances comfort by providing consistent warmth throughout the room without cold spots.

In terms of design, the CFS24NVC VS30N, B, C models prioritize user-friendliness. They come equipped with intuitive controls, allowing for easy adjustments to temperature and settings. Many users appreciate the digital displays which provide real-time feedback on performance and help monitor energy consumption.

Safety is also a core feature of the CFS24NVC series. The units are fitted with multiple safety mechanisms, including overheating protection and tip-over switches, which automatically power down the heater in case of accidents. This ensures peace of mind for users, making them suitable for use in families with children or pets.

Moreover, the CFS24NVC series is engineered with durability in mind. Constructed from high-quality materials, these heaters are built to withstand daily wear and tear, ensuring longevity in performance.

In conclusion, the Desa CFS24NVC VS30N, B, C series stands out in the heating market for its combination of versatility, advanced heating technologies, user-friendly design, and robust safety features. This series is an excellent choice for consumers looking for reliable, efficient heating solutions suitable for diverse applications.
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