Installation, Installing High Pressure Regulator

MODEL TC250RNG

NATURAL GAS CONSTRUCTION HEATER

INSTALLATION

WARNING: Review and un- derstand the warnings in the Safety Information Section, page

2.They are needed to safely op- erate this heater. Follow all local codes when using this heater.

WARNING: Test all gas pip- ing and connections for leaks after installation or servicing. Never use an open flame to check for a leak. Apply a mixture of liquid soap and water to all joints. Bubbles forming show a leak. Correct all leaks at once.

1.Provide natural gas supply system.

2.Install plumbing from natural gas sup- ply system to heater. Provide 4 psi gas pressure to heater. If gas supply pres- sure is over 4 psi, use high pressure regulator (provided).

3.Connect gas supply to heater using minimum 3/8" i.d. hose. Maximum hose length is 10 feet.

4.Connect hose or plumbing to 1/2" SAE flare fitting at the valve inlet. Tighten all fittings with a wrench.

5.Open natural gas supply valve slowly. Check all connections for leaks. Never use an open flame to check for a leak. Apply mixture of liquid soap and wa- ter to gas joints. Bubbles forming show a leak that must be corrected. Correct all leaks at once.

6.Close natural gas supply valve.

Installing High Pressure

Regulator

If the inlet supply pressure is above 4 psi, you must use the high pressure regulator (supplied). Follow the instructions below to install regulator.

1.Install pipe or flexible connector (not supplied) from gas supply to high pres- sure regulator. Pipe or flexible connec- tor must be a minimum of 3/8" i.d. with a maximum lenth of 10 feet. Attach pipe or flexible connector to inlet of regula- tor. The female threads of the regulator are 1/2 npt. Note: The natural gas sup- ply must deliver 250 CFH of natural

gas at 4 psi pressure for each heater connected to the system.

2.Mount regulator to heater base below piezo ignitor button (see Figure 2). Use 1/4-20 screws from hardware bag to at- tach regulator to heater. Mount regula- tor so the outlet with male connector points toward the heater inlet .

3.Attach the 1/2" copper fuel tube (sup- plied) to male connector on regulator. Attach other end of fuel tube to heater inlet. Firmly tighten fuel tube flare nuts onto each fitting.

4.Open natural gas supply valve slowly. Check all connections for leaks. Never use an open flame to check for a leak. Apply mixture of liquid soap and wa- ter to gas joints. Bubbles forming show a leak that must be corrected. Correct all leaks at once.

5.Close natural gas supply valve.

6.Follow steps under To Start Heater in the OPERATION section (page 5) of this manual.

Figure 2 - Installing Regulator

Regulator

Screws

Copper Fuel Tube

104133

TC250RNG specifications

The Desa TC250RNG is a versatile and efficient piece of equipment engineered for modern outdoor tasks. Designed with the user in mind, this high-performance machine integrates cutting-edge technology and robust features to ensure optimal productivity and ease of use.

One of the standout features of the TC250RNG is its powerful engine. The unit is powered by a reliable engine that ensures a smooth and efficient operation across various terrains. This allows users to tackle challenging outdoor projects, whether it's landscaping, gardening, or maintenance tasks. The engine's efficient fuel consumption not only reduces operating costs but also minimizes environmental impact, making it a responsible choice for eco-conscious consumers.

The TC250RNG incorporates advanced technology that enhances user experience and functionality. With an easy-start mechanism, users can effortlessly fire up the machine, saving time and reducing frustration. Additionally, the ergonomic design of the handle provides optimal comfort during extended usage, minimizing fatigue and increasing productivity. The intuitive control panel allows users to operate functions with precision and ease, further streamlining their workflow.

Durability is another key characteristic of the Desa TC250RNG. Constructed from high-quality materials, this machine is built to withstand the rigors of outdoor work. Its robust design ensures longevity, making it a reliable investment for both professional and hobbyist use. The all-weather construction also allows for year-round operation, regardless of changing environmental conditions.

Safety features are paramount in the TC250RNG design. It comes equipped with safety guards and an automatic shutoff system that activates in case of a malfunction or overload, ensuring the user's protection. This safety-first approach makes it suitable for users of all skill levels.

In terms of versatility, the TC250RNG is compatible with a range of attachments and accessories, enhancing its functionality even further. Whether users need to add a mulching kit, a snowblower, or other attachments, this machine can adapt to meet various requirements, making it suitable for diverse tasks.

Overall, the Desa TC250RNG stands out as a reliable and efficient machine that combines power, durability, and user-friendly technology. Whether for professional landscaping companies or private homeowners, its innovative features and robust characteristics make it a top choice for anyone looking to enhance their outdoor productivity.