Installation

Continued

CONNECTING TO GAS SUPPLY

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

WARNING: A qualified ser- vice person must connect heater to gas supply. Follow all local codes.

CAUTION: Never connect propane/LPheater 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 heater 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.

•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 34.

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" 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: Use only new, black iron or steel pipe. Inter- nally-tinned copper tubing may be used in certain areas. Check your local codes. Use pipe of 1/2" diameter or greater to allow proper gas volume to heater. If pipe is too small, 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 re- quirements 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.

Propane/LP

Supply Tank

External

Regulator

Vent

Pointing

Down

Figure 13 - External Regulator With Vent

Pointing Down

111161-01H

www.desatech.com

13

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Page 13
Image 13
Desa CHL3924NR installation manual Connecting to GAS Supply, External Regulator With Vent Pointing Down
Page 12 Page 14

CHL3924NR specifications

Desa CHL3924NR is an innovative and versatile heating solution designed to meet the demands of modern living. This unit is particularly favored for its combination of efficiency, performance, and advanced technology, making it an ideal choice for homeowners looking for effective heating options.

One of the standout features of the Desa CHL3924NR is its impressive heating capacity. With a powerful design, it can deliver substantial warmth to medium to large spaces while maintaining a user-friendly operation. The unit boasts a range of heating settings, allowing users to customize the temperature according to their preferences and comfort. This flexibility not only enhances user experience but also optimizes energy consumption, contributing to lower utility bills.

Furthermore, the CHL3924NR incorporates cutting-edge technology to ensure reliable and efficient performance. The unit comes with a state-of-the-art digital thermostat that provides precise temperature control. This feature allows for easy monitoring and adjustment, ensuring that a comfortable environment is maintained effortlessly.

Energy efficiency is a hallmark of the Desa CHL3924NR. It is designed to minimize energy waste while maximizing output, making it an environmentally conscious choice. The unit's efficient fuel consumption means it operates with lower emissions compared to traditional heating systems, aligning with the growing trend towards sustainable living.

Durability is another significant characteristic of the Desa CHL3924NR. Constructed with high-quality materials, this heating unit is built to last, and its robust design can withstand the rigors of daily use. Coupled with a sleek, modern aesthetic, it seamlessly integrates into various home décors.

Safety features are paramount in the design of the CHL3924NR, ensuring peace of mind during operation. The unit is equipped with safety shut-off mechanisms, preventing overheating and potential hazards.

In conclusion, the Desa CHL3924NR stands out as a reliable, efficient, and stylish heating solution, perfect for contemporary homes. Its combination of advanced technology, user-friendly features, energy efficiency, and safety make it an excellent choice for anyone looking to enhance their heating experience. Whether for a cozy night in or providing warmth during colder months, the Desa CHL3924NR delivers exceptional performance that meets the needs of today’s consumers.
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