Connecting to GAS Supply

INSTALLATION

Continued

WARNING: This appliance requires a 1/2" NPT (National Pipe Thread) inlet connection to the pressure regulator.

WARNING: A qualiﬁed service personmustconnectheatertogas supply. Follow all local codes.

CAUTION:Neverconnectpro- pane/LP ﬁreplace directly to the propane/LP supply. This heater requires an external regulator (not supplied). Install the exter- nal regulator between the heater and propane/LP supply.

WARNING: Never connect natural gas ﬁreplace to private (non-utility) gas wells. This gas is commonly known as wellhead gas.

Installation Items Needed

Before installing heater, make sure you have the items listed below.

•external regulator (supplied by installer)

•piping (check local codes)

•sealant (resistant to propane/LP gas)

•equipment shutoff valve *

•test gauge connection *

•sediment trap

•tee joint

•pipe wrench

*A CSA design-certiﬁed equipment shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional CSA design-certiﬁed equipment shutoff valve from your dealer. See Accessories, page 27.

For propane/LP units, the installer must supply an external regulator. The external regulator will reduce incoming gas pressure. You must reduce incoming gas pressure to between 11 and 14 inches of water. If you do not reduce incoming gas pres- sure, heater regulator damage could occur. Install external regulator with the vent pointing down

as shown in Figure 13. Pointing the vent down protects it from freezing rain or sleet.

CAUTION:Useonlynew,black ironorsteelpipe.Internally-tinned copper tubing may be used in certain areas. Check your local codes.Usepipeof1/2"diameteror greatertoallowpropergasvolume toheater.Ifpipeistoosmall,undue loss of volume will occur.

Installation must include an 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, page 14).

IMPORTANT: Install equipment shutoff valve in an accessible location. The equipment shutoff 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 a sediment trap in supply line as shown in Figures 14, page 14. Locate sediment trap where it is within reach for clean- ing. 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.

	Propane/LP
External	Supply Tank
External
Regulator

Vent

Pointing

Down

Figure 13 - External Regulator With Vent

Pointing Down

111347-01E

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LSL3124P, CDL3924PT, CDL3924NT specifications

Desa CDL3924NT, LSL3124P, and CDL3924PT are notable choices in the realm of heating appliances, demonstrating advanced engineering and an array of user-friendly features. Each model has unique characteristics, making them suitable for diverse heating needs.

The Desa CDL3924NT is particularly distinguished by its dual-fuel capability, allowing users to switch between natural gas and propane. This flexibility ensures that homeowners can choose the energy source that best suits their preferences and availability. Moreover, the model boasts a heating capacity of up to 39,000 BTUs, providing substantial warmth for large spaces. Its compact design makes it ideal for installations in rooms with limited space, while an aesthetically pleasing finish ensures that it blends seamlessly with various home decors.

Meanwhile, the LSL3124P shines with its sleek design and powerful performance. This direct vent gas stove focuses on efficiency, delivering up to 26,000 BTUs of heating output. One of its standout features is the advanced airflow system, which ensures even heat distribution, reducing cold spots and providing consistent warmth. The LSL3124P is equipped with a straightforward digital thermostat that allows for precision temperature adjustments, enhancing user convenience. Additionally, the model is designed for quiet operation, making it an excellent choice for relaxation areas like living rooms or bedrooms.

The CDL3924PT, on the other hand, emphasizes versatility and efficiency. Equipped with a programmable timer, this appliance allows users to pre-set heating schedules according to their daily routines, ultimately conserving energy and reducing utility costs. With a maximum output of 39,000 BTUs, the CDL3924PT is capable of heating larger areas effectively. The unit boasts a built-in safety shut-off feature, ensuring peace of mind in household environments. Its stylish design complements modern interiors, and its easy installation process caters to both new and seasoned homeowners.

In summary, the Desa CDL3924NT, LSL3124P, and CDL3924PT models stand out for their innovative technologies and feature sets. Each unit addresses unique heating needs with efficiency and style, making them valuable additions to any home. Whether you prioritize flexibility in fuel options, quiet operation, or programmable settings, Desa's offerings cater to various lifestyles and heating requirements. Their robust heating capabilities, coupled with user-friendly designs, ensure that every homeowner can find a suitable option for comfort during colder months.

Desa CDL3924PT, CDL3924NT Connecting to GAS Supply, External Regulator With Vent Pointing Down

Models: LSL3124P CDL3924PT CDL3924NT

INSTALLATION