www.fmiproducts.com
124387-01D 17
INSTALLATION
Continued
3" Min.
(7.6 cm)
Side Wall
Of Appliance
Incoming
1/2" Gas Line
Permitted by
Local Codes
Sediment Trap
(Not Supplied)
Figure 24 - Sediment Trap
Figure 22 - Manual Shutoff Valve
Installation
Typical Exterior Wall Gas
Shutoff Installation
Key
Extension
Shutoff
Valve
For propane/LP connection only, the installer
must supply an external regulator. The exter-
nal regulator will reduce incoming gas pres-
sure. You must reduce incoming gas pressure
to between 11" and 14" of w.c. pressure. If
you do not reduce incoming gas pressure,
replace regulator damage could occur. Install
external regulator with the vent pointing down
as shown in Figure 23. Pointing the vent down
protects it from freezing rain or sleet.
Figure 23 - External Regulator with Vent
Pointing Down (Propane/LP Only)
Propane/LP
Supply Tank
External Regulator
with Vent Pointing
Down
IMPORTANT: Install main gas valve (equip-
ment shutoff valve) in an accessible location.
The main gas valve is for turning on or shutting
off the gas to the appliance.
CAUTION: Use only new,
black iron or steel pipe. Inter-
nally-tinnedcoppertubingmay
beusedincertainareas.Check
your local codes. Use pipe of
1/2"diameterorgreatertoallow
propergasvolumetoreplace.
Ifpipeistoosmall,undueloss
ofvolumewilloccur.
We recommend that you install a sediment
trap/drip leg in supply line as shown in Figure
24. Locate sediment trap/drip leg where it
is within reach for cleaning. Install in piping
system between fuel supply and replace.
Locate sediment trap/drip leg where trapped
matter is not likely to freeze. A sediment trap
traps moisture and contaminants. This keeps
them from going into replace gas controls. If
sediment trap/drip leg is not installed or is in-
stalled wrong, replace may not run properly.
Check your building codes for any special
requirements for locating equipment shutoff
valve to replace.
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 replace.
Natural - From
Gas Meter (5.5"
W.C. to 10.5" W.C.
Pressure)
Propane/LP From
External Regulator
(11" W.C. to 14"
W.C. Pressure)