Desa CDV34NA Inspecting Burners, Optional Remote Operation, Operating Optional Blower Accessory

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OWNER’S MANUAL

OPERATING

FIREPLACE

Continued

OPTIONAL REMOTE

OPERATION

NOTICE: You must light the pilot before using the hand-held re- mote control unit. See Lighting Instructions, page 24.

1.After lighting, let pilot flame burn for about one minute. Turn gas control knob on the control valve to ON posi- tion. Turn variable control knob any- where between HI and LO. Slide the selector switch to the REMOTE po- sition. Note: The burners may light if hand-held remote ON button was on when selector switch was last turned off. You can now turn the burners on and off with the hand-held remote con- trol unit.

IMPORTANT: Do not leave the se- lector switch in the REMOTE posi- tion when the pilot is not lit. This will drain the battery.

IMPORTANT: Be sure to press the ON/OFF buttons on the hand-held remote control unit for up to 3 sec- onds to assure proper operation.

2.Press the ON/OFF button to turn the burners on and off. When turning burners off, the pilot will remain lit. IMPORTANT: To turn the pilot off, manually turn the gas control knob on the heater to the OFF position.

OPERATING

OPTIONAL BLOWER

ACCESSORY

Locate the blower controls by opening the lower louver panel on the fireplace. Blower controls are located on the left side of the switch bracket to the left just inside the louver panel.

Both the GA3750 manual blower and the CDA3620T thermostatically-controlled blower have an ON setting and an OFF setting. The blower will only run when the switch is in the ON position. In the OFF position, the blower will not operate.

Note for CDA3620T Only: If you are using CDA3620T blower, your fireplace and blower will not turn on and off at the same time. The fireplace may run for several minutes before the blower turns on. After the heater modulates to the pilot position, the blower will continue to run. The blower will shut off after the firebox temperature decreases.

The blower helps distribute heated air from the fireplace. Periodically check the louvers of the firebox and remove any dust, dirt, or other obstructions that will hinder the flow of air.

INSPECTING

BURNERS

Check pilot flame pattern and burner flame patterns often.

PILOT ASSEMBLY

The pilot assembly is factory preset for the proper flame height. Alterations may have occurred during shipping and handling. Call

Thermopile

3/8" to 1/2"

Pilot Burner

1/8"

Thermocouple

Piezo

Ignitor

Figure 54 - Pilot Assembly

BURNER FLAME PATTERN

Burner flames will be steady; not lifting or floating. Flame patterns will be different from unit to unit and will vary depending on installation type and weather conditions.

If the vent configuration is installed incor- rectly, the flames will lift or "ghost". This can be dangerous. Inspect the flames after installation to ensure proper installation and performance.

Figure 55 shows a typical flame pattern for CDV34(N/P)(A).

If burner flame pattern differs from that described:

turn fireplace off (seeTo Turn Off Gas to Appliance, page 24)

seeTroubleshooting, pages 27 through 29

Blower Control Knob (Optional Accessory)

OFF

ON

REMOTE

OFF

ON

Selector Switch in Remote Position

Variable Control Knob

N

 

L

 

O

 

O

I

T

F

O

H

O

F

 

 

LIP

 

 

 

 

 

 

 

Gas Control

Knob in On

Position

a qualified service person to readjust the pilot if necessary.

The height of the thermopile must be 3/8" to 1/2" above the pilot flame as shown in Figure

54.The thermocouple must be at a height of about 1/8" above the pilot flame. The flame from the pilot burner must extend beyond both the thermocouple and thermopile.

If your pilot assembly does not meet these requirements:

Figure 55 - Typical Flame Pattern for CDV34NA, PA

Figure 53 - Setting the Selector Switch, Gas Control Knob, and Variable Control Knob for Remote Operation

turn fireplace off (seeTo Turn Off Gas to Appliance, page 24)

seeTroubleshooting, pages 27 through 29

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Contents For Your Safety What to do if YOU Smell GAS For Your SafetyNatural GAS Model CDV34NA PROPANE/LP GAS Model CDV34PA DIRECT-VENT Fireplace NATURAL/PROPANE/LP Safety InformationProduct Identification Product FeaturesLocal Codes Glossary TermsClearances PRE-INSTALLATION PreparationLocation and Space Requirements Framing and FinishingLocation of Vent Termination General VentingGeneral Venting Installation Precautions Venting InstallationInstallation Planning Installing Vent System in a ChaseSnorkel Termination Installation for Horizontal TerminationVent Pipe Connections Horizontal Venting Horizontal Termination ConfigurationsVenting with Two 90 Elbows Flat Ceiling Installation Installation for Vertical TerminationCathedral Ceiling Installation Venting with One 90 Elbow Vertical Termination ConfigurationsVertical Venting Parts Lists for Venting Kits and Components High Altitude InstallationComfort Glow Rigid Venting Comfort Glow Flexible VentingInstalling Optional Blower Accessory Fireplace InstallationInstalling GA3750/CDA3620T Blowers Check GAS TypeIf your fireplace system is installed Installation Items Needed Installing GAS Piping to Fireplace LocationPressure Testing Gas Supply Piping System Connecting Fireplace to GAS SupplyChecking GAS Connections Close manual shutoff valve see Fig- ure Pressure Testing Fireplace Gas ConnectionsInstalling 9-Volt Alkaline Battery into Receiver Installing Optional Wireless HAND-HELD Remote ControlREMOVING/REPLACING Glass Door Attaching Magnetic Decorative Brass Strips Installing Optional Brick Liner CD8037AInstalling Log No Installing LOGS, Lava Rock and Glowing EmbersManual Lighting Procedure For Your Safety Read Before LightingOperating Fireplace Lighting InstructionsPilot Assembly Operating Optional Blower AccessoryInspecting Burners Optional Remote OperationGlass Door Cleaning and MaintenancePilot and Burners LogsObserved Problem Possible Cause TroubleshootingObserved Problem Possible Cause Remedy Gas leak. See Warning statement Service Hints Replacement PartsWiring Diagram Technical ServiceAccessories CDV34NA CDV34PA33 Illustrated Parts BreakdownDIRECT-VENT Fireplace CDV34NA CDV34PA Parts ListWarranty Information

CDV34PA, CDV34NA specifications

Desa CDV34NA and CDV34PA are two prominent models in the Desa vent-free gas fireplace series, renowned for their efficiency, craftsmanship, and modern design. These fireplaces offer an ambient warmth while combining style with practicality, making them a popular choice for homeowners looking to enhance their living spaces.

One of the key features of the CDV34NA and CDV34PA is the vent-free technology. This innovative design allows for the direct burning of gas without the necessity of a chimney or venting system. As a result, these fireplaces can be installed in various locations within the home, providing flexibility that traditional fireplaces cannot match. The absence of a flue system also means that no heat is lost during the exhaust process, allowing for maximum energy efficiency.

Both models are equipped with advanced safety features. They include an Oxygen Depletion Sensor (ODS) that automatically shuts off the unit if oxygen levels fall below a safe threshold. This technology not only ensures the safety of users but also enhances peace of mind while operating the fireplace. Additionally, the CDV34 series features a built-in thermocouple that regulates the temperature, providing an added layer of safety by preventing overheating.

When it comes to aesthetics, the CDV34NA and CDV34PA do not disappoint. They feature a modern, sleek design that complements a variety of interior decors. Available in stylish finishes, these units can seamlessly blend into contemporary homes or traditional settings. The large viewing windows provide a captivating view of the flames, creating an inviting ambiance ideal for any gathering.

Performance-wise, both models deliver impressive heating capabilities. With adjustable heat output settings, users can customize the warmth to suit their preferences. The units operate quietly, enhancing the overall comfort of the environment without disruptive fan noise. Additionally, the CDV34NA model runs on natural gas, while the CDV34PA uses propane, providing options based on the homeowner's available gas supply.

In conclusion, the Desa CDV34NA and CDV34PA are exceptional options for those seeking a versatile and stylish heating solution. With their vent-free technology, enhanced safety features, and elegant design, these fireplaces are perfect for adding warmth and character to any indoor space. Whether for new constructions or renovations, these models offer the right blend of function and form for today's discerning homeowners.