Connecting to GAS Supply

DESA INTERNATIONAL

VENT-FREE NATURAL GAS STOVE HEATER

INSTALLATION

Continued

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

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

Installation Items Needed

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

• piping (check local codes)
• sealant (resistant to LP gas)
•	equipment shutoff valve *
•	test gauge connection *

The gas inlet connection for the stove heater is located on the lower right-hand side of the stove when viewed from the front of the unit. The gas connection can be made either through the bottom right side or through the lower back opening as illustrated in Figure

19.Make sure gas log heater is secured to the stove cavity assembly.

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

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 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 20, SVYD18NR and FSVYD18NR series, or Figure 21, SVYD18N and FSVYD18 series).

IMPORTANT: Install equipment shutoff valve in an accessible location. The equip- ment shutoff valve is for turning on or shutting off the gas to the appliances.

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.

CAUTION: Use pipe joint seal- ant that is resistant to liquid pe- troleum (LP) gas.

•	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. Pur- chase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, page 33.

Back View

Back Stove

Panel

CSA Design-Certified

Equipment Shutoff Valve

With 1/8" NPT Tap*

Gas Control

3" Minimum

Approved Flexible Gas Hose (if allowed by local codes)

From Gas Meter (5" W.C.** to 10.5" W.C. Pressure)

Tee Joint

Pipe Nipple SedimentTrap

Cap

Figure 20 - Gas Connection (SVYD18NR and FSVYD18NR Series)

Product

Identification

Label

	Side View
Front of	Gas Inlet	Gas
Front of	Gas Inlet	Log
Stove	Connection	Heater
Unit	Access

From Gas Meter (5" W.C.** to 10.5" W.C. Pressure)

Sediment Tee Joint
Trap	Pipe
	Nipple
		3" Minimum
	Cap

CSA Design-Certified

Equipment Shutoff Valve

With 1/8" NPT Tap*

Approved Flexible Gas Hose (if allowed by local codes)

Gas

Regulator

Figure 19 - Gas Regulator Location and Gas Line Access Into Stove Cabinet

Figure 21 - Gas Connection (SVYD18N and FSVYD18N Series)

*Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, page 33.

**Minimum inlet pressure for purpose of input adjustment.

104461

(F)SVYD18N, (F)SVYD18NR specifications

Desa (F)SVYD18NR and (F)SVYD18N are advanced models in the range of valves designed to serve various industrial and residential applications. Known for their reliability and efficiency, these valves are engineered to meet the demanding needs of modern fluid control systems.

One of the main features of the Desa (F)SVYD18NR and (F)SVYD18N is their robust construction. They are made from high-quality materials that ensure durability and longevity, even in harsh operating conditions. The valves are resistant to corrosion, making them suitable for handling aggressive fluids without compromising their integrity. This characteristic is essential for industries such as chemicals, oil and gas, and water treatment, where exposure to different substances is inevitable.

The valves are also equipped with advanced sealing technologies which prevent leaks and ensure optimal performance. The precision-engineered seals provide a barrier against contaminants while maintaining efficient fluid flow. This not only enhances the reliability of the system but also contributes to reduced maintenance costs and downtime.

Another significant advantage of the Desa (F)SVYD18NR and (F)SVYD18N is their versatility. They are designed to accommodate a wide range of fluid types, including gases, liquids, and slurries. This adaptability makes them ideal for various applications, from HVAC systems to industrial manufacturing processes.

In terms of operation, these valves utilize a user-friendly design that facilitates ease of installation and adjustment. They come with standardized connections that fit a variety of piping systems, simplifying the integration process. Additionally, the models have a responsive actuator mechanism that ensures precise control over fluid flow, enhancing operational efficiency.

Moreover, Desa (F)SVYD18NR and (F)SVYD18N are designed with energy efficiency in mind. Their advanced aerodynamic design minimizes pressure drops and energy consumption, making them an environmentally friendly choice. This aligns with the growing trend of sustainable practices in industrial operations.

Finally, both models are subject to rigorous testing to ensure they meet industry standards and regulations. This commitment to quality assurance guarantees that users can trust the performance and safety of these valves in their operations.

In conclusion, the Desa (F)SVYD18NR and (F)SVYD18N valves stand out for their durability, versatility, easy installation, and commitment to energy efficiency. These characteristics make them an excellent choice for anyone seeking reliable fluid control solutions in various applications.