Desa FBPS Unvented Vent-Freelogmate Firebox, Installation, Continued, Installing Gas Line

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UNVENTED (VENT-FREE) LOGMATE® FIREBOX

INSTALLATION

Continued

INSTALLING GAS LINE

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

IMPORTANT: See Connecting to Gas Sup- ply in your log set owner’s manual for details on gas hookup.

Figure 11 shows the typical installation for the gas line. When you have determined how the gas line will run, locate the recessed knockout in the firebrick floor (see Figure 12). Firmly tap the center of the knockout with a chisel until it is released. Carefully chisel the rough edges of the hole you have made to smooth edges. This hole will line up with the hole in the metal floor.

CAUTION: Do not use exces- sive force to remove the knock- out. Too much force may dam- age the firebrick concrete insert.

Gas Line Installed Through Access Hole on One Side of Firebox

A manual shutoff valve, AGA certified and complying with the National Fuel Gas code, ANS Z223.1-latest edition, must be included within (6') six feet of the vent-free firebox gas supply system. It may be convenient to install the gas shutoff outside the vent-free firebox enclosure where it can be accessed with a key through a wall as shown in Figure

13.Depending on the type of installation, some local codes may require you to install two (2) manual shutoff valves independently accessible from both rooms. Check your local codes for applicable installation re- quirements.

Firebrick Floor

Remove Knockout

3/4" Thick Liner

Figure 12 - Location of Knockout for Gas Line

A 36" long 1/2" NPT SCHD 40 flexible gas connector line complying with the National Fuel Gas code ANS Z223.1-latest edition, may be run from the regulator to the incom- ing 1/2" NPT black iron gas line. You may also route the incoming 1/2" NPT black iron gas line directly to the appliance regulator.

Remove the gas line cover plate from the vent-free firebox’s outer surround and route the gas line into the rear of the firebox (see Figure 11).

If a sediment trap is not incorporated as a part of the gas utilization equipment, one shall be installed as close to the inlet of the equipment as practical at the time of instal- lation, as per ANS Z223.1-latest edition. See Figure 14, page 11.

Prepare incoming black iron gas line with Teflon tape or pipe joint compound (check with local codes as to the use of Teflon tape). Compounds used on threaded joints of gas piping shall be resistant to the action of pro- pane/LP and should be applied lightly to en- sure excess sealant does not enter the gas line.

Complete your gas installation by connect- ing the incoming gas line to the appliance regulator. Secure all joints tightly with wrench but do not overtighten. If a flexible gas line is used, take care not to kink the connector.

Shut-Off Valve

Extension

Key

Manual Shutoff Valve is Located Under Firebox Floor on Either Side

Figure 13 - Typical Exterior Wall Gas Shut-Off Installation

Figure 11 - Installing Gas Line and Manual Shutoff Valve

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