Desa (F)SVYD18NR Inspecting Burners, Pilot Flame Pattern, Burner Primary AIR Holes, Main Burner

Page 17

OWNER’S MANUAL

OPERATING

HEATER

Continued

MANUAL LIGHTING

PROCEDURE

1.Follow steps 1 through 5 under Light- ing Instructions, page 16.

2.Pilot is located inside stove cavity at- tached to burner. Lift off top grate to allow access to pilot.

3.Depress control knob and light pilot with match.

4.Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob.

5.Place top grate back into position. Now follow step 8 under Lighting Instructions., page 16.

INSPECTING

BURNERS

Check pilot flame pattern and burner flame patterns often.

PILOT FLAME PATTERN

(Remote-Ready Models)

Figure 30 shows a correct pilot flame pat- tern. Figure 31 shows an incorrect pilot flame pattern. The incorrect pilot flame is not heat- 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 31

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

•see Troubleshooting, pages 19 through 21

Pilot Burner

Thermocouple

Figure 30 - Correct Pilot Flame Pattern

Pilot Burner

Thermocouple

 

Figure 31 - Incorrect Pilot Flame Pattern

PILOT FLAME PATTERN

(Variable-Manual Control Models)

Figure 32 shows a correct pilot flame pattern. Figure 33 shows an incorrect pilot flame pattern. The incorrect pilot flame is not heat- 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 33

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

•see Troubleshooting, pages 19 through 21

Thermocouple

Pilot Burner

Figure 32 - Correct Pilot Flame Pattern

Thermocouple

Pilot Burner

Figure 33 - 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 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. Remove blockage. Blocked burner flame holes will create soot.

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Contents What to do if YOU Smell GAS VENT-FREE Natural GAS Stove HeaterDesa International VENT-FREE Natural GAS Stove Heater Safety InformationLocal Codes Product FeaturesProduct Identification Providing 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 OutdoorsCheck GAS Type InstallationClearances to Combustibles Vent-Free Operation OnlyUse an adjustable wrench or Stove Cavity AssemblySheraton Models Amity and Townsend ModelsAttaching Stove Door Appearance May Vary Depending on Model Fastening Heater Base to Stove Drop Bottom Installing GAS LOG Heater Into StoveInstallation Items Needed Connecting to GAS SupplyChecking GAS Connections Pressure Testing Heater Gas ConnectionsPressure Testing Gas Supply Piping System Operating Heater For Your Safety Read Before LightingLighting Instructions SVYD18NR and FSVYD18NR Remote-Ready ModelsOptional Remote Operation Manual Lighting ProcedureTo Turn OFF GAS To Appliance SVYD18N and FSVYD18N Manual-Variable Control Models Variable Control OperationPilot Flame Pattern Inspecting BurnersBurner Primary AIR Holes Main BurnerSpecifications Cleaning and MaintenanceTechnical Service Cleaning Burner Injector Holder and Pilot AIR Inlet HoleObserved Problem Possible Cause TroubleshootingObserved Problem Possible Cause Remedy Top SVYD18NR FSVYD18NR Illustrated Parts BreakdownKEY Part Number Description QTY Parts ListSVYD18N FSVYD18N KEY Part Description QTY Indicates Color Suffix Designation Amity SCIVF* Series PSCIVF* SeriesTouch-up Paint Bottle with Brush Porcelain Enamel Teal Green Sheraton NSCIVF* Series Parts List Series TownsendFC* and PFC* Series *Indicates Color Suffix Designation Service Hints Replacement PartsWiring Diagram Parts Under WarrantyAccessories Warranty Information

(F)SVYD18N, (F)SVYD18NR specifications

Desa (F)SVYD18NR and (F)SVYD18N are advanced models in the range of valves designed to serve various industrial and residential applications. Known for their reliability and efficiency, these valves are engineered to meet the demanding needs of modern fluid control systems.

One of the main features of the Desa (F)SVYD18NR and (F)SVYD18N is their robust construction. They are made from high-quality materials that ensure durability and longevity, even in harsh operating conditions. The valves are resistant to corrosion, making them suitable for handling aggressive fluids without compromising their integrity. This characteristic is essential for industries such as chemicals, oil and gas, and water treatment, where exposure to different substances is inevitable.

The valves are also equipped with advanced sealing technologies which prevent leaks and ensure optimal performance. The precision-engineered seals provide a barrier against contaminants while maintaining efficient fluid flow. This not only enhances the reliability of the system but also contributes to reduced maintenance costs and downtime.

Another significant advantage of the Desa (F)SVYD18NR and (F)SVYD18N is their versatility. They are designed to accommodate a wide range of fluid types, including gases, liquids, and slurries. This adaptability makes them ideal for various applications, from HVAC systems to industrial manufacturing processes.

In terms of operation, these valves utilize a user-friendly design that facilitates ease of installation and adjustment. They come with standardized connections that fit a variety of piping systems, simplifying the integration process. Additionally, the models have a responsive actuator mechanism that ensures precise control over fluid flow, enhancing operational efficiency.

Moreover, Desa (F)SVYD18NR and (F)SVYD18N are designed with energy efficiency in mind. Their advanced aerodynamic design minimizes pressure drops and energy consumption, making them an environmentally friendly choice. This aligns with the growing trend of sustainable practices in industrial operations.

Finally, both models are subject to rigorous testing to ensure they meet industry standards and regulations. This commitment to quality assurance guarantees that users can trust the performance and safety of these valves in their operations.

In conclusion, the Desa (F)SVYD18NR and (F)SVYD18N valves stand out for their durability, versatility, easy installation, and commitment to energy efficiency. These characteristics make them an excellent choice for anyone seeking reliable fluid control solutions in various applications.
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