Desa CCL3924NR AIR for Combustion Ventilation, Determining FRESH-AIR Flow for Heater Location

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OWNER’S MANUAL

AIR FOR

COMBUSTION AND

VENTILATION

Continued

DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION

Determining if You Have a Confined or Unconfined Space

Use this work sheet to determine if you have a confined or unconfined space.

Space: Includes the room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms.

1.Determine the volume of the space (length x width x height).

Length x Width x Height = _________________ cu. ft. (volume of space)

Example: Space size 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) = 2560 cu. ft. (volume of space)

If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these rooms to the total volume of the space.

2.Divide the space volume by 50 cubic feet to determine the maximum Btu/Hr the space can support.

_________________ (volume of space) ÷ 50 cu. ft. = (Maximum Btu/Hr the space can support)

Example: 2560 cu. ft. (volume of space) ÷ 50 cu. ft. = 51.2 or 51,200 (maximum Btu/Hr the space can support)

3.Add the Btu/Hr of all fuel burning appliances in the space.

Vent-free heater

____________________ Btu/Hr

 

 

 

 

Gas water heater*

____________________ Btu/Hr

Example:

 

 

 

Gas furnace

____________________ Btu/Hr

Gas water heater

 

40,000

Btu/Hr

 

 

 

Vented gas heater

____________________ Btu/Hr

Vent-free heater

+

39,000

Btu/Hr

Gas fireplace logs

____________________ Btu/Hr

Total

=

79,000

Btu/Hr

Other gas appliances* + ____________________ Btu/Hr

 

 

 

 

Total

= ____________________ Btu/Hr

 

 

 

 

*Do not include direct-vent gas appliances. Direct-vent draws combustion air from the outdoors and vents to the outdoors.

4.Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.

_________________ Btu/Hr (maximum the space can support)

_________________ Btu/Hr (actual amount of Btu/Hr used)

Example: 51,200 Btu/Hr (maximum the space can support) 79,000 Btu/Hr (actual amount of Btu/Hr used)

The space in the above example is a confined space because the actual Btu/Hr used is more than the maximum Btu/Hr the space can support. You must provide additional fresh air. Your options are as follows:

A.Rework worksheet, adding the space of an adjoining room. If the extra space provides an unconfined space, remove door to adjoin- ing room or add ventilation grills between rooms. See Ventilation Air From Inside Building, page 6.

B.Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 6.

C.Install a lower Btu/Hr heater, if lower Btu/Hr size makes room unconfined.

If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the space is an unconfined space. You will need no additional fresh air ventilation.

WARNING: If the area in which the heater may be operated is smaller than that defined as an unconfined space or if the building is of unusually tight construction, provide adequate combustion and ventilation air by one of the methods described in the National Fuel Gas Code, ANS Z223.1, Section 5.3 or applicable local codes.

Continued

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Contents What to do if YOU Smell GAS Remote ReadyUnvented Natural GAS LOG Heater Safety Information Product Features Safety InformationLocal Codes UnpackingAIR for Combustion and Ventilation Unvented Natural GAS LOG Heater Remote Control AccessoriesProviding Adequate Ventilation Unusually Tight ConstructionDetermining if You Have a Confined or Unconfined Space AIR for Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Ventilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Check GAS Type InstallationLOG Sizing Requirements Minimum Fireplace Clearance to Combustible MaterialsMinimum Noncombustible Material Clearances Unvented Natural GAS LOG Heater InstallationMantel Clearances Determining Minimum Mantel Clearances When Using a HoodFloor Clearances Determining Minimum Mantel ClearancesInstallation Items Needed Installing Damper Clamp Accessory for Vented OperationInstalling Heater Base Assembly Attaching Flexible Gas Hose to Heater Connecting to GAS SupplyPressure Testing gas Supply Piping system Installing Remote Receiver UnitPressure Testing Heater Gas Connections Checking GAS ConnectionsInstalling 9-Volt Battery in Receiver Installing Wireless Remote Control AccessoryInstalling Logs CGD3924NRA Installing Crossover Log #4 Installing Logs CCL3924NR and CCL3930NRLighting Instructions For Your Safety Read Before LightingOperating Heater Unvented Natural GAS LOG Heater Operating Manual Lighting ProcedureTo Turn OFF GAS To Appliance Optional Remote OperationPilot Flame Pattern Inspecting BurnersMain Burner Cghrcta Series OperationService Hints Unvented Natural GAS LOG Heater Cleaning and MaintenanceTechnical Service Cleaning Burner Injector Holder and Pilot AIR Inlet HoleObserved Problem Possible Cause Remedy TroubleshootingMaintenance, Unvented Natural GAS LOG Heater TroubleshootingGas leak. See Warning statement at CGD3924NRA Unvented Natural GAS LOG Heater Illustrated Parts BreakdownKEY Part Number Description QTY Parts ListCCL3924NR CCL3930NR KEY CCL3924NR CCL3930NR Part Number Description QTY Parts not Under Warranty Parts Under WarrantyWiring Diagram AccessoriesSpecifications Warranty Information

CCL3924NR, CCL3930NR specifications

The Desa CCL3930NR and CCL3924NR are advanced heating solutions known for their efficiency and innovative features. These models stand out in the market due to their commitment to both performance and user convenience.

One of the defining characteristics of both models is their energy efficiency. They utilize cutting-edge technology that optimizes fuel consumption while delivering robust heating output. The CCL3930NR, in particular, is designed for larger spaces, providing up to 30,000 BTUs, making it an excellent choice for garages, workshops, or any sizable area requiring reliable warmth. On the other hand, the CCL3924NR is geared toward medium-sized spaces, offering a maximum of 24,000 BTUs, making it suitable for residential settings or smaller commercial environments.

Both units feature a user-friendly thermostat that enables easy temperature control, contributing to user comfort and convenience. This digital thermostat allows for precise temperature settings, ensuring the environment remains consistent and cozy. The programmable features also provide flexibility, allowing users to set schedules according to their needs.

Another significant aspect of these models is their safety technologies. Equipped with robust safety mechanisms, both the CCL3930NR and the CCL3924NR automatically shut off in case of overheating or if the flame goes out unexpectedly. This ensures peace of mind for users, especially in settings where safety is paramount.

The construction of these heaters reflects durability and intention. They are built with high-quality materials designed to withstand the test of time, ensuring longevity and consistent performance. The sleek design also offers aesthetic appeal, allowing them to fit seamlessly into various environments.

In terms of fuel types, both models are versatile, accommodating a variety of fuels such as propane and kerosene, making them adaptable to different user preferences and availability of fuel sources. This flexibility is further enhanced by the portability of the units, enabling easy relocation as spaces or heating needs change.

In conclusion, the Desa CCL3930NR and CCL3924NR represent cutting-edge heating solutions that combine efficiency, safety, and user-friendly features. Whether for personal or professional use, these models offer an effective way to ensure comfort in various environments.
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