Desa CF26NRA, CF26PRA installation manual Inspecting Burners, Cleaning Maintenance

Page 23

INSPECTING BURNERS

Check pilot flame pattern and burner flame pat- terns often.

PILOT FLAME PATTERN

Figure 39 shows a correct pilot flame pattern. Figure 40 shows an incorrect pilot flame pattern. The incorrect pilot flame is not properly heating the thermocouple. When the thermocouple cools, the heater will shut down.

If pilot flame pattern is incorrect, as shown in Figure 40

•turn heater off (see To Turn Off Gas to Appli- ance, page 21)

•see Troubleshooting, page 25

Note: The correct pilot flame on natural gas units will have a slight curve, but flame should be blue and have no yellow or orange color.

Pilot Burner

Thermocouple

 

Figure 39 - Correct Pilot Flame Pattern

(propane/LP ignitor shown)

Pilot Burner

Thermocouple

Figure 40 - Incorrect Pilot Flame Pattern

(propane/LP ignitor shown)

BURNER FLAME PATTERN

Figure 41 shows a correct burner flame pattern. Figure 42 shows an incorrect burner flame pattern. If burner flame pattern is incorrect,

•turn heater off (see To Turn Off Gas to Appli- ance, page 21)

•see Troubleshooting, page 25

Approx. 3-6"

Above Top

of Logs

Figure 41 - Correct Flame Pattern with Control Knob Set to High Flame

More Than

8" Above

Top of Logs

Figure 42 - Incorrect Flame Pattern with Control Knob Set to High Flame

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 become 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.

CLEANING AND

MAINTENANCE

WARNING: Turn off heater and let cool before cleaning.

CAUTION: You must keep control areas, burner, and circu- lating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a qualified service person. Heater may need more frequent clean- ing due to excessive lint from carpeting, bedding material, pet hair, etc.

113897-01A

www.desatech.com

23

Page 22 Page 24
Image 23
Page 22 Page 24
Contents What to do if YOU Smell GAS Table of Contents Safety Information Unpacking Local CodesProduct Identification Product FeaturesRemote Control Accessories Confined and Unconfined Space AIR for Combustion VentilationDetermining FRESH-AIR Flow for Fireplace Location Unusually Tight ConstructionVentilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Locating Fireplace InstallationCheck GAS Type Minimum Clearance for Combustible to Wall BUILT-IN Fireplace InstallationAttaching Fireplace to Wall Studs Mantel Clearances for Built-In InstallationTrim shipped with mantel Optional Mantel InstallationRemoving Brick Liner Retainer Assembling TrimRemoving Hood Installing Blower Assembly GA3450TInstalling Blower Bracket Assembly For Built-In Installation Installation Items Needed Connecting to GAS SupplyNatural From Connecting Fireplace to GAS SupplyPropane/LP KPa Checking GAS ConnectionsTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Test Pressures In Excess Of 1/2 PsigPressure Testing Heater GAS Connections Installing LogsInstalling 9-Volt Battery in Receiver Installing Wireless Remote Control AccessoryLighting Instructions For Your Safety Read Before LightingSelector Switch Flame Operating FireplaceOptional HAND-HELD Remote Operation Manual Lighting ProcedureTo Turn OFF GAS To Appliance Thermostat Series Model Cghrctb ON/OFF Series Model CghrcbInspecting Burners Cleaning MaintenanceExterior Burner Injector Holder and Pilot AIR Inlet HoleCabinet Air PassagewaysObserved Problem Possible Cause Remedy TroubleshootingSee Cleaning and Mainte On windows Tilation air Gas leak. See Warning Wiring Diagram SpecificationsModels CF26PRA and CF26NRA Illustrated Parts BreakdownParts List 20-1 11-1 20-3 11-2 KEY Part Number Description QTY Parts Central Replacement PartsService Hints Technical ServiceThermostatically Controlled Blower KIT GA3450T Receiver and HAND-HELD Remote Control KIT CghrcbCleaning KIT GCK Equipment Shutoff Valve GA5010Limited Warranty VENT-FREE GAS BAY Front Fireplace Warranty InformationKeep this Warranty

CF26NRA, CF26PRA specifications

Desa CF26PRA and CF26NRA are highly regarded heating appliances designed for efficient and reliable home heating solutions. These units are part of Desa's comprehensive lineup, known for their innovative technology and user-friendly features. Both models are distinct yet share a common commitment to optimizing warmth and comfort in residential spaces.

One of the main features of the CF26PRA and CF26NRA is their impressive heating capacity. These heaters are engineered to deliver significant BTUs, ensuring that even large rooms are heated rapidly and evenly. Both models utilize a forced air distribution system that effectively circulates warmth throughout the living area, eliminating cold spots and providing a consistent, cozy environment.

In terms of design, the CF26PRA and CF26NRA are visually appealing with modern aesthetics that blend seamlessly into various décors. Their compact size allows for flexible placement, whether freestanding or wall-mounted, making them an ideal choice for any room in the home, including living rooms, basements, or even workshops.

Incorporating advanced technologies, these models are equipped with electronic ignition systems, which eliminate the need for manual lighting, ensuring ease of use. Their adjustable thermostat allows homeowners to set the preferred temperature, automatically regulating heat output to maintain comfort while optimizing energy efficiency.

Both the CF26PRA and CF26NRA are constructed with durable materials that enhance their longevity and performance. This robust build is paired with safety features like automatic shut-off and flame failure protection, providing peace of mind for users, particularly in homes with children or pets.

Energy efficiency is another hallmark of these models. They are designed to consume minimal fuel while maximizing output, which helps in reducing monthly heating costs without sacrificing comfort. The CF26NRA, specifically, features an enhanced combustion system, further improving fuel efficiency and lowering emissions.

In conclusion, Desa CF26PRA and CF26NRA are excellent choices for anyone seeking reliable, efficient, and stylish heating solutions. With their user-friendly features, advanced technology, and strong performance characteristics, both models represent a solid investment for maintaining a warm and inviting home during cold weather months. Whether you're upgrading your heating system or looking for a supplemental heater, these models will meet and exceed expectations, keeping every corner of your home comfortably warm.
Top Page Image Contents