GAS Supply

Check all local codes for requirements, especially for the size and type of gas supply line required.

Recommended Gas Pipe Diameter

Pipe Length	Schedule 40 Pipe		Tubing, Type L
	Inside Diameter		Outside Diameter
	Nat.	L.P.	Nat.	L.P.
0-10 feet	1/2”	3/8”	1/2”	3/8”
0-3 meters	12.7mm	9.5mm	12.7mm	9.5mm
10-40 feet	1/2”	1/2”	5/8”	1/2”
4-12 meters	12.7mm	12.7mm	15.9mm	12.7mm
40-100 feet	1/2”	1/2”	3/4”	1/2”
13-30 meters	12.7mm	12.7mm	19mm	12.7mm
100-150 feet	3/4”	1/2”	7/8”	3/4”
31-46 meters	19mm	12.7mm	22.2mm	19mm

Note: Never use plastic pipe. Check to conﬁrm whether your local codes allow copper tubing or galvanized.

Note: Since some municipalities have additional local codes, it is always best to consult your local authority and installation code.

Installing a New Main Gas Cock

Each appliance should have its own manual gas cock.

A manual main gas cock should be located in the vicinity of the unit. Where none exists, or where its size or location is not ad- equate, contact your local authorized installer for installation or relocation.

Compounds used on threaded joints of gas piping shall be resistant to the action of liqueﬁed petroleum gases. The gas lines must be checked for leaks by the installer. This should be done with a soap solution watching for bubbles on all exposed connections, and if unexposed, a pressure test should be made.

Never use an exposed ﬂame to check for leaks. Appliance must be disconnected from piping at inlet of control valve and pipe capped or plugged for pressure test. Never pressure test with appliance connected; control valve will sustain damage!

A gas valve and ground joint union should be installed in the gas line upstream of the gas control to aid in servicing. It is required by the National Fuel Gas Code that a drip line be installed near the gas inlet. This should consist of a vertical length of pipe tee connected into the gas line that is capped on the bottom in which condensation and foreign particles may collect.

Figure 11

The use of the following gas connectors is recommended:

—ANS Z21.24Appliance Connectors of Corrugated MetalTubing and Fittings

—ANS Z21.45 Assembled Flexible Appliance Connectors of Other Than All-Metal Construction

The above connectors may be used if acceptable by the authority having jurisdiction.The state of Massachusetts requires that a ﬂexible appliance connector cannot exceed three feet in length.

Pressure Testing of the Gas Supply System

1.To check the inlet pressure to the gas valve, a 1/8" (3.175mm) N.P.T.pluggedtapping,accessiblefortestgaugeconnection,must be placed immediately upstream of the gas supply connection to the appliance.

2.The appliance and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.5 kPa).

3.The appliance must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psig (3.5 kPa).

Attention! If one of the procedures results in pressures in excess of 1/2 psig (14" w.c.) (3.5 kPa) on the appliance gas valve, it will result in a hazardous condition.

18954-2-0107

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VFSM-30-3 specifications

The Empire Comfort Systems VFSM-30-3 is a state-of-the-art vent-free gas fireplace that combines functionality with aesthetic appeal. Ideal for homes without traditional venting systems, this fireplace brings warmth and a cozy ambiance to any space while maintaining an efficient energy usage standard.

One of the main features of the VFSM-30-3 is its impressive heat output. With a heating capacity of up to 30,000 BTUs, it effectively warms areas up to 1,200 square feet, making it suitable for both small and large living spaces. The unit’s design incorporates a durable steel construction, ensuring longevity and resistance to wear over time.

The versatility of the Empire VFSM-30-3 is notable, as it can be powered by either natural gas or propane, allowing homeowners flexibility in fuel choice. It also features an adjustable flame height, giving users the option to create their desired level of warmth and ambiance. This is complemented by its realistic log set, which enhances the visual appeal, replicating the look of a traditional wood-burning fireplace.

Another significant characteristic of the VFSM-30-3 is its advanced vent-free technology. This innovative system allows for efficient combustion without the need for a chimney or flue, greatly reducing installation costs and complexities. The vent-free design also ensures that 100% of the heat generated is utilized within the room, providing exceptional energy efficiency.

Safety is a top priority with the Empire VFSM-30-3. The fireplace comes equipped with an oxygen depletion sensor, which automatically shuts off the gas supply if the oxygen levels fall below a safe threshold, providing peace of mind for users.

Installation of the VFSM-30-3 is straightforward, with options for wall mounting or placing it on a hearth. This flexibility allows homeowners to integrate the fireplace into their existing décor seamlessly. Its variety of trim options and finishes further empowers users to personalize their fireplace, ensuring it complements their home’s interior design.

In summary, the Empire Comfort Systems VFSM-30-3 offers a reliable and stylish heating solution for those seeking the charm of a gas fireplace without the challenges of traditional venting. Its combination of efficiency, safety features, and customizable options makes it a remarkable choice for any home.