Vanguard B) Owner's Operation And Installation Manual - Fireplace

18

105539

DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)

®

Figure 36 - Gas Connection

* The A.G.A. design-certified manual shutoff valve may be supplied with the appliance

or you can purchase it from your dealer.

 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 fireplace. If

pipe is too small, undue loss of

pressure will occur.

Installation must include a manual 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

fireplace (see Figure 36).

For propane/LP connection only, the in-

staller must supply an external regulator.

The external regulator will reduce incoming

gas pressure. You must reduce incoming

gas pressure to between 11 and 14 inches of

water. If you do not reduce incoming gas

pressure, heater regulator damage could

occur. Install external regulator with the

vent pointing down as shown in Figure 35.

Pointing the vent down protects it from

freezing rain or sleet.

FIREPLACE

INSTALLATION

Continued

INSTALLING GAS PIPING TO

FIREPLACE LOCATION

Installation Items Needed

Before installing fireplace, make sure you

have the items listed below:

• external regulator (supplied by installer)

• piping (check local codes)

• sealant (resistant to propane/LP gas)

• manual shutoff valve *

• test gauge connection *

• sediment trap

• tee joint

• pipe wrench

• approved flexible gas line with gas con-

nector (if allowed by local codes) (not

provided)

*  An A.G.A. design-certified manual shutoff

valve with 1/8" NPT tap is an acceptable

alternative to test gauge connection. Pur-

chase the  A.G.A. design-certified manual

shutoff valve from your dealer.

 WARNING: A qualified ser-

vice person must connect fire-

place to gas supply. Follow all

local codes.

 CAUTION: For propane/LP

units, never connect heater di-

rectly to the propane/LP supply.

This heater requires an external

regulator (not supplied). Install the

external regulator between the

heater and propane/LP supply.

  CAUTION: Use pipe joint seal-

ant that is resistant to liquid pe-

troleum (LP) gas.

Figure 35 - External Regulator with Vent

Pointing Down (Propane/LP Only)

Propane/LP

Supply Tank

External

Regulator

Vent

Pointing

Down

We recommend that you install a sediment

trap/drip leg in supply line as shown in

Figure 36. Locate sediment trap/drip leg

where it is within reach for cleaning. Install

in piping system between fuel supply and

heater. Locate sediment trap/drip leg where

trapped matter is not likely to freeze. A

sediment trap traps moisture and contami-

nants. This keeps them from going into

fireplace gas controls. If sediment trap/drip

leg is not installed or is installed wrong,

fireplace may not run properly.

A.G.A. Design-Certified

Manual Shutoff Valve with

1/8" NPT Tap*

3" Minimum

Propane/LP - From External

Regulator (11" W.C. to 14"

W.C. Pressure)

Approved Flexible

Gas Line

Cap    Pipe Nipple    Tee Joint

Sediment Trap/Drip Leg

Natural - From Gas

Meter (5" W.C. to 10.5"

W.C. Pressure )

IMPORTANT:

 Install main gas valve

(manual shutoff valve) in an accessible lo-

cation. The main gas valve is for turning on

and shutting off the gas to the appliance.

Check your building codes for any special

requirements for locating manual shutoff

valve to fireplaces.

Apply pipe joint sealant lightly to male

threads. This will prevent excess sealant

from going into pipe. Excess sealant in pipe

could result in clogged fireplace valves.