26
20306748
MLDV Series Gas Fireplace
FIREPLACE INSTALLATION
CHECK GAS TYPE
Use proper gas type for the
fi
replace you are installing.
If you have con
fl
icting gas type, do not install
fi
replace.
See dealer where you purchased the
fi
replace for proper
fi
replace for your gas type or conversion kit.
INSTALLING GAS PIPING TO FIREPLACE /
BURNER SYSTEM LOCATION
INSTALLATION ITEMS NEEDED
Before installing
fi
replace and burner system, make sure
you have the items listed below.
•
Tee
joint
•
Pipe wrench
•
Equipment shutoff valve*
•
Test gauge connection*
•
Sediment trap (recommended)
•
External regulator (supplied by installer)
•
Piping (check local codes)
•
Sealant (resistant to propane/LP gas)
•
approved
fl
exible gas line with gas connector (if
allowed by local codes — not provided)
* A CSA design-certi
fi
ed equipment shutoff valve with
1/8" NPT tap is an acceptable alternative to test gauge
connection. Purchase the CSA design-certi
fi
ed equip-
ment shutoff valve from your dealer.
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 45.
Pointing the vent
down protects it from freezing rain or sleet.
When using copper of
fl
ex connectors use only
fi
ttings
approved for gas connections. The gas control inlet is
3/8" NPT.
W
ARNING
A quali
fi
ed installer or service person must
connect appliance to gas supply. Follow
all local codes.
CAUTION
For propane/LP units, never connect
fi
replace 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.
External
Regulator
100 gallon (min)
Propane/LP Supply
Tank
Vent Pointing
Down
Figure 45 -
External Regulator with Vent Pointing Down
(Propane/LP Only)
CAUTION
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 sul
fi
de
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
fl
ow rate (BTU/hr). Undue
pressure loss will occur if the pipe is too
small.
NOTE :
The gas line connection may be made using 1/2"
rigid tubing or an approved
fl
ex connector. Since some
municipalities have additional local codes it is always best
to consult your local authorities and the current edition of
the National Fuel Gas Code ANSI.Z223.1, NFPA54. In
Canada CSA-B149 (1 or 2) Installation Code.
A listed manual shutoff valve must be installed upstream of
the appliance. Union tee and plugged 1/8" NPT pressure
tapping point should be installed upstream of the appliance.
Figure 46
IMPORTANT:
Install main gas valve (equipment shutoff
valve) in an accessible location. The main gas valve is for
turning on or shutting off the gas to the
fi
replace.
W
ARNING
Only persons licensed to work with gas
piping may make the necessary gas
connections to this appliance.
