Desa VSGF28NTE User Manual download pdf (Page 13)

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113135-01A

INSTALLATION

Continued

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)

• equipment shutoff valve *

• test gauge connection *

• sediment trap (optional)

• tee joint

• pipe wrench

* A CSA design-certified equipment shutoff valve

with 1/8" NPT tap is an acceptable alternative to

test gauge connection. Purchase the optional CSA

design-certified equipment shutoff valve from your

dealer. See Accessories, pages 30 and 31.

For propane/LP units, the installer must supply an

external regulator. The external regulator will re-

duce incoming gas pressure. You must reduce in-

coming gas pressure to between 11 and 14 inches

of water. If you do not reduce incoming gas pres-

sure, heater regulator damage could occur. Install

external regulator with the vent pointing down as

shown in Figure 17. Pointing the vent down pro-

tects it from freezing rain or sleet.

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 volume will occur.

Installation must include an 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 fireplace (see Figure 18).

IMPORTANT:

Install equipment shutoff valve in

an accessible location. The equipment shutoff

valve is for turning on or shutting off the gas to

the appliance.

Check your building codes for any special require-

ments for locating equipment shutoff valve to fire-

places.

Apply pipe joint sealant lightly to male NPT

threads. This will prevent excess sealant from

going into pipe. Excess sealant in pipe could re-

sult in clogged fireplace valves.

WARNING: Use pipe joint

sealant that is resistant to liq-

uid petroleum (LP) gas.

We recommend that you install a sediment trap

in supply line as shown in Figure 18. Locate sedi-

ment trap where it is within reach for cleaning.

Install in piping system between fuel supply and

fireplace. Locate sediment trap where trapped

matter is not likely to freeze. A sediment trap traps

moisture and contaminants. This keeps them from

going into fireplace gas controls. If sediment trap

is not installed or is installed wrong, fireplace may

not run properly.

Pipe Tee

Nipple Cap Joint

Figure 17 - External Regulator with Vent

Pointing Down

Propane/LP

Supply Tank

External

Regulator

Vent

Pointing

Down

Figure 18 - Gas Connection

* Purchase the optional CSA design-certified

equipment shutoff valve from your dealer. See Ac-

cessories, pages 30 and 31.

** Minimum inlet pressure for purpose of input

adjustment.

Natural Gas

From Gas Meter

(5" w.c. to 10.5"

w.c. Pressure

Propane/LP

From External

Regulator

(11"w.c.** to

14"w.c.

Pressure)

3" Minimum

Sediment Trap

CSA Design-Certified

Equipment Shutoff Valve

With 1/8" NPT Tap*

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 31 32

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