X
X
Ratings
Model
NG
LPG
Gas
Natural
Propane
Altitude (Ft.)*
0-4,500 feet*
Input Maximum (Btu/h)
30,000
28,000
Input Minimum (Btu/h)
6,500
14,500
Manifold Pressure (in w.c.)
4.0
10.5
Minimum Supply Pressure
(in w.c.)
5.0
11.0
Maximum Supply Pressure
(in w.c.)
10.0
14.0
Main Burner Injector
Marking
850
300
Pilot Injector Marking
51
30
Min. Rate By-Pass Screw
125
125
Speci
fi
cations
Approval & Codes
This appliance is certi
fi
ed to ANSI Z21.88-2014 / CSA
2.33-2014 American National Standard / CSA Standard
for
Vented Gas Fireplace Heaters
for use in Canada
and USA, and to CGA 2.17-91
High Altitude Standard
in Canada
. This appliance is for direct vent insert
installations.
This appliance complies with CSA P4.1-09
Testing
method for measuring annual fi replace effi ciencies
.
The installation must conform to local codes or, in the
absence of local codes, with the
National Fuel Gas
Code, ANSI Z223.1
or the
Natural Gas and Propane
Installation Code CAN/CGA-B149
. Only quali
fi
ed
licensed or trained personnel should install this
appliance.
This appliance must be electrically grounded in
accordance with local codes, or, in the absence of local
codes, with the
National Electrical Code, ANSI/NFPA
70
or the
Canadian Electrical Code, CSA C22.1
.
*High Altitude Installations
Input ratings are shown in BTU per hour and are
certi
fi
ed without deration for elevations up to 4,500 feet
(1,370 m) above sea level.
For elevations above 4,500 feet (1,370 m) in USA,
installations must be in accordance with the current
ANSI Z223.1 and/or local codes having jurisdiction.
Heating value of gas in some areas is reduced to
compensate for elevation—consult your local gas utility
to con
fi
rm.
For installations at elevations above 4,500 feet
(1,370 m) in Canada, please consult provincial and/or
local authorities having jurisdiction.
Supply Gas
Heater engine 780JN is used with natural gas.
Heater engine 780JP is used with propane gas.
The supply pressure must be between the limits shown
in the Ratings section above.
The supply connection is 1/2” NPT female and located
on the left hand side of the control valve. The gas
line entry point is on the upper left hand side on the
fi
replace.
Conversion Kits
The 780 Legend G4 is supplied as natural gas or
propane gas and is
fi
eld convertible between fuels. See
instructions packaged with the conversion kit for further
information.
Electrical
The 780 does not require an electrical power source to
operate as a heater. However, if the appliance is
fi
tted
with a fan, a grounded power source is required.
17
QUALIFIED
INSTALLER
Summary of Contents for LEGEND G4 780JN (NG)
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