Superior MNF24ONM Installation And Operation Instructions Manual page 8

Figure 10 - Attaching Base to Fireplace Floor
(Model Shown May Vary from Actual Model)
CONNECTING TO GAS SUPPLY
WARNING: This appliance requires a 1/2"
NPT (National Pipe Thread) inlet connection
to the pressure regulator.
WARNING: A qualifi ed service person must
connect appliance to gas supply. Follow all
local codes.
CAUTION: Never connect propane/LP ap-
pliance directly to the propane/LP supply.
This appliance requires an external regulator
(not supplied). Install the external regulator
between the appliance and propane/LP supply.
WARNING: Never connect natural gas ap-
pliance to private (non-utility) gas wells. This
gas is commonly known as wellhead gas.
Installation Items Needed
Before installing appliance, 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
• tee joint
• pipe wrench
• approved fl exible gas line with gas connector (if allowed by
local codes) (not provided
* An equipment shutoff valve with 1/8" NPT tap is an ac-
ceptable alternative to test gauge connection. Purchase the
optional equipment shutoff valve from your dealer.
8
INSTALLATION
Masonry Screw
)
SuperiorFireplaces.us.com
Continued
For propane/LP units, the installer must supply an external
regulator. The external regulator will reduce incoming gas
pressure. You must reduce incoming gas pressure to between
11" and 14" of water. If you do not reduce incoming gas pres-
sure, appliance regulator damage could occur. Install external
regulator with the vent pointing down as shown in Figure 11.
Pointing the vent down protects it from freezing rain or sleet.
CAUTION: Use only new, black iron or
steel pipe. Internally-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 appli-
ance. 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 appli-
ance (see Figure 12, Page 9).
IMPORTANT: Install equipment shutoff valve in an acces-
sible location. The equipment shutoff valve is for turning on
or shutting off the gas to the appliance.
Check your building codes for any special requirements for
locating equipment shutoff valve to appliances.
Apply pipe joint sealant lightly to male NPT threads. This will
prevent excess sealant from going into pipe. Excess sealant
in pipe could result in clogged appliance valves.
WARNING: Use pipe joint sealant that is
resistant to liquid petroleum (LP) gas.
We recommend that you install a sediment trap in supply
line as shown in Figure 12. Locate sediment trap where it is
within reach for cleaning. Install in piping system between fuel
supply and appliance. Locate sediment trap where trapped
matter is not likely to freeze. A sediment trap traps moisture
and contaminants. This keeps them from going into appliance
controls. If sediment trap is not installed or is installed wrong,
appliance may not run properly.
Propane/LP
Supply Tank
Figure 11 - External Regulator With Vent Pointing Down
External
Regulator
with Vent
Pointing
Down
900465-01A