Desa CLD3924PTA, CLD3924NTA Checking GAS Connections, Pressure Testing Gas Supply Piping System

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INSTALLATION

Connecting To Gas Supply (Cont.) Checking Gas Connections

INSTALLATION

Continued

Installation must include a equipment shutoff valve, union, and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from heater (see Figure 14).

IMPORTANT: Install equipment shutoff valve in an accessible location. The main gas valve is for turning on or shutting off the gas to the appliance.

Check your building codes for any special requirements for locating equipment shutoff valve to fireplaces.

Apply pipe joint sealant lightly to male NPT threads. This will prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged heater valves.

WARNING: Use pipe joint sealant that is resistant to liquid petroleum (LP) gas.

We recommend that you install sediment trap in supply line as shown in Figure 14. Locate sediment trap where it is within reach for cleaning. Install in piping system between fuel supply and heater. Locate sediment trap where trapped matter is not likely to freeze. A sediment trap traps moisture and contaminants. This keeps them from going into heater controls. If sediment trap is not installed or is installed wrong, heater may not run properly.

CAUTION: Avoid damage to regulator. Hold gas regulator with wrench when connecting it to gas piping and/or fittings.

Natural

CSA Design-Certified

 

From Gas Meter

Equipment Shutoff Valve

Approved

(5" W.C.** to

With 1/8" NPT Tap*

10.5" W.C.

 

Flexible Gas

Pressure)

 

Hose (if allowed

 

 

by local codes)

Propane/LP

 

 

From External

 

 

Regulator

 

 

(11" W.C.** to

 

 

14 " W.C.

3" Minimum

 

Pressure

 

Tee Joint Cap Pipe Nipple

Gas Regulator

 

 

 

Sediment Trap

 

Figure 14 - Gas Connection

*Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, page 32.

**Minimum inlet pressure for purpose of input adjustment.

CHECKING GAS CONNECTIONS

WARNING: Test all gas piping and connections for leaks after installing or servicing. Correct all leaks at once.

WARNING: Never use an open flame to check for a leak. Apply a commercial leak detection solution to all joints. Bubbles forming show a leak. Correct all leaks at once.

CAUTION: For propane/LP units, make sure ex- ternal regulator has been installed between propane/ LP supply and heater. See guidelines under Connect- ing to Gas Supply, page 11.

Pressure Testing Gas Supply Piping System

Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)

1.Disconnect appliance with its appliance main gas valve (control valve) and equipment shutoff valve from gas supply piping. Pres- sures in excess of 1/2 psig will damage heater regulator.

2.Cap off open end of gas pipe where equipment shutoff valve was connected.

3.Pressurize supply piping system by either opening propane/LP supply tank valve for propane/LP gas or opening main gas valve located on or near gas meter for natural gas, or using com- pressed air.

4.Check all joints of gas supply piping system. Apply a com- mercial leak detection solution to all joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Reconnect heater and equipment shutoff valve to gas supply. Check reconnected fittings for leaks.

Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)

1.Close equipment shutoff valve (see Figure 15, page 13).

2.Pressurize supply piping system by either opening propane/LP supply tank valve for propane/LP gas or opening main gas valve located on or near gas meter for natural gas, or using com- pressed air.

3.Check all joints from gas meter (natural gas) or propane/LP supply to equipment shutoff valve (see Figure 16 or 17, page 13). Apply a commercial leak detection solution to all joints. Bubbles forming show a leak.

4.Correct all leaks at once.

For..com

107068

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Contents OWNER’S Operation and Installation Manual CLD3924PTA, CLD3924NTAWhat to do if YOU Smell GAS Winchester Oak Model ShownTable of Contents Safety InformationProduct Identification Product Features Local CodesUnpacking AIR for Combustion and VentilationDetermining FRESH-AIR Flow for Heater Location Confined Space and Unconfined SpaceDetermining if You Have a Confined or Unconfined Space Installation Ventilation AIRVentilation Air From Inside Building Ventilation Air From OutdoorsCheck GAS Type Minimum Fireplace Clearance to Combustible MaterialsMinimum Firebox Size If Not 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 RegulatorPressure Testing Gas Supply Piping System Checking GAS ConnectionsPressure Testing Heater Gas Connections Equipment Shutoff ValveFit over the burner see . Make sure the front Operating Heater What to do if YOU Smell GASLighting Instructions Variable Control OperationManual Lighting Procedure To Turn OFF GAS to ApplianceShutting Off Heater Shutting Off Burners Only pilot stays litThermostat Control Operation Cleaning Maintenance Inspecting BurnersTechnical Service Service HintsReplacement Parts 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 Model CGS2718P CLD3018PA CGS3124P CLD3924PTAIllustrated Parts Breakdown Parts List Variable Manually-Controlled Winchester Oak ModelsCLD3018NA CLD3018PA KEY Part Number CLD3018NA CLD3018PA Description QTY CLD3924NTA CLD3924PTA KEY Part Number CLD3924NTA CLD3924PTA Description QTY Accessories Parts CentralOwners Registration Form Postage Required 107068 Warranty Information

CLD3018NA 24, CLD3924NTA, CLD3924PTA specifications

The Desa CLD3018NA, CLD3924PTA, and CLD3924NTA are advanced heating solutions designed to provide efficient warmth for residential and commercial spaces. These models stand out for their innovative features, reliable performance, and cutting-edge technologies.

The CLD3018NA is renowned for its compact design and powerful heating capabilities. With a heat output of up to 30,000 BTUs, it efficiently warms areas up to 1,200 square feet. Its dual-fuel capability allows it to operate on either natural gas or propane, making it versatile for different settings. The adjustable thermostat provides precise temperature control, ensuring optimal comfort. Additionally, the CLD3018NA features an easy-to-use ignition system for quick startups and a blower fan to enhance heat circulation.

Moving on to the CLD3924PTA, this model offers a larger heating capacity, capable of delivering up to 35,000 BTUs. It is ideal for medium to large spaces, effectively heating areas of up to 1,500 square feet. One notable characteristic of the CLD3924PTA is its aesthetic appeal, with a sleek design that can complement various interior styles. The unit comes equipped with an automatic shut-off feature for safety, ensuring that users can enjoy peace of mind while using it. Furthermore, the adjustable heat output allows for customized comfort in changing weather conditions.

The CLD3924NTA variant takes efficiency to the next level. With similar heating capabilities as the CLD3924PTA, it boasts enhanced energy efficiency ratings. It incorporates advanced insulation technology to minimize heat loss, making it an eco-friendly choice for conscientious consumers. The built-in air filter helps maintain indoor air quality by reducing dust and allergens, which is particularly beneficial for households with allergy sufferers. Additionally, the CLD3924NTA is designed for quiet operation, ensuring that users can enjoy warmth without the distraction of noisy machinery.

All three models benefit from Desa's commitment to quality and reliability. Built using durable materials and subjected to rigorous testing, they are engineered for longevity and consistent performance. Easy installation and maintenance further enhance their appeal, making these heaters a practical choice for any homeowner or business owner in need of a dependable heating solution. In summary, the Desa CLD3018NA, CLD3924PTA, and CLD3924NTA represent the pinnacle of heating technology, combining efficiency, safety, and aesthetic value to enhance any environment.
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