Astria.us.com
126753-01M
12
INSTALLATION
Continued
GAS LINE HOOK-UP
WARNING: Gas line hookup should be done by your
gas supplier or a qualified service person.
WARNING: Before you proceed, make sure your
gas supply is OFF.
A manual shutoff valve has been included in the appliance’s gas sup-
ply system. You may consider installing an extra gas shutoff valve
outside appliance’s enclosure (check with local codes) where it can
be accessed more conveniently with a key through a wall as shown
in
Figure 15.
In conformance with local codes, route a 1/2" NPT gas line to appliance
through hole in left side of firebox or sub-floor as shown in
Figure 16.
CAUTION: Do not kink flexible gas line.
IMPORTANT NOTICE
NFPA 54 defines minimum space requirements for the
installation of this fireplace.
This fireplace must be installed in an unconfined space
with a minimum of 50 cubic feet per 1,000 BTUs of
gas output. Therefore 36” models require 2,650 cu-
bic feet, 42” models require 3,100 cubic feet.. If the
space you wish to install the fireplace does not meet
these requirements NFPA 54 details several actions
that may be taken.
Figure 15 - Manual Shutoff Valve Installation
Typical Exterior Wall Gas
Shutoff Installation
Key
Extension
Shutoff
Valve
Figure 16 - Routing Incoming Gas Line
A
B
1/2" NPT Incoming
Black Iron Gas Line
Flexible Gas Line
(1 Provided) Can
Be Extended Out
Either Side
7"
7"
Alternate Gas Supply
Through Sub-Floor
Mission36TMN
(F0859, F0861)
Mission42TMN
(F0865, F0867)
A
8
5
/
8
" (21.9 cm)
10
1
/
2
" (26.7 cm)
Figure 17 - Sediment Trap
Incoming
1/2" Gas Line
Permitted by
Local Codes
Sediment
Trap (Not
Supplied)
3" Min.
(7.6 cm)
IHP recommends that a black iron gas line be routed from the gas
source, through a sediment trap
(see
Figure 17
)
and into appliance.
Once connected through appliance, a flexible gas line may be used
for ease of installation to gas control valve
(see
Figure 18, Page 13
).
Before connecting black iron gas line to inside of appliance a sediment
trap must be included outside appliance between gas line and gas
shutoff valve. It must extend down 3" beyond center of pipe. Prepare
incoming black iron gas line with teflon tape or pipe joint compound
(Check with local building codes).
CAUTION: Compounds used on threaded joints of
gas piping shall be resistant to the action of Liquefied
Petroleum (LP or propane) and should be applied lightly
to ensure excess sealant does not enter the gas line.
WARNING: All gas piping and connections must be
tested for leaks after the installation is completed.
After ensuring that the gas valve is on, apply a commercial
leak detection solution to all connections and joints. If
bubbles appear, leaks can be detected and corrected.
Do not use an open flame for leak testing and do not
operate any appliance if a leak is detected.
