Monessen Hearth Natural Vent Gas Fireplace SBV400 - Manual (Page 18)

18 62D4036
Figure 16 - External Regulator with Vent Pointing
Down (Propane/LP Only)
Use only new black iron or steel pipe.
Internally tinned copper or copper
tubing can be used per National Fuel
Code, section 2.6.3, providing gas
meets hydrogen sulfide limits, and
where permitted by local codes. Gas
piping system must be sized to provide
minimum inlet pressure (listed on data
plate) at the maximum flow rate (BTU/
hr). Undue pressure loss will occur if
the pipe is too small.
CAUTION
For propane/LP units, never connect
fireplace directly to the propane/LP
supply. This burner system requires
an external regulator (not supplied).
Install the external regulator between
the burner system and propane/LP
supply.
CAUTION
FIREPLACE INSTALLATION
CHECK GAS TYPE
Use proper gas type for the fireplace you are installing. If you have conflicting gas type, do not install fireplace. See dealer
where you purchased the fireplace for proper fireplace according to your gas type.
INSTALLING GAS PIPING TO FIREPLACE LOCATION
A qualified installer or service person
must connect appliance to gas supply.
Follow all local codes.
W
ARNING
INSTALLATION ITEMS NEEDED
Before installing, make sure you have the items listed below.
• External regulator (supplied by installer) • Tee joint
• Piping (check local codes)
• Pipe wrench
• Sealant (resistant to propane/LP gas)
• Test gauge connection*
• Sediment trap (optional but recomended)
• approved flexible gas line with gas connector (if allowed
by local codes — not provided)
* A CSA design-certified equipment shutoff valve with 1 /
8
"
NPT tap is an acceptable alternative to test gauge connection.
Purchase the CSA design-certified equipment shutoff valve
from your dealer.
External
Regulator
100 gal. (min)
Propane/LP
Supply Tank
Vent
Pointing
Down
When using copper or flex connectors use only fittings
approved for gas connections. The gas control inlet is
3 /
8
" NPT.
For propane/LP connections only, 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 13 inches of water. If you do not reduce incoming
gas pressure, burner system regulator damage could occur. Install external regulator with the vent pointing down as shown
in Figure 16. Pointing the vent down protects it from freezing rain or sleet.
External regulators may be necessary
for natural gas. One- or two-pound
systems will damage this appliance
and may cause fire hazzard.
W
ARNING