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Specifications
Approval & Codes
This appliance is certifi ed to ANSI Z21.88/CSA 2.33
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 installations.
This appliance complies with CSA P.4.1-15 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/NFPA 54 or the Natural Gas
and Propane Installation Code CAN/CGA-B149.1. Only
qualifi 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.
Ratings
Model
Gas
Altitude (Ft.)*
Input Maximum (Btu/h)
Input Minimum (Btu/h)
Manifold Pressure (in w.c.)
Minimum Supply Pressure (in w.c.)
Maximum Supply Pressure (in w.c.)
Main Burner Injector Marking
Pilot Injector Marking
Min. Rate By-Pass Screw
*High Altitude Installations
Input ratings are shown in BTU per hour and are
certifi 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 confi rm.
For installations at elevations above 4,500 feet (1,370 m)
in Canada, please consult provincial and/or local
authorities having jurisdiction.
6
780MN
780MP
Natural
Propane
0-4,500 feet*
28,000
28,000
14,000
14,000
3.2"
10.5"
5"
11"
10"
14"
850
300
51
30
185
125
Supply Gas
Heater engine 780MN is used with natural gas.
Heater engine 780MP is used with propane gas.
The supply pressure must be between the limits shown
in the Ratings section.
The supply connection is 1/2" NPT female and located
on the left side of the control valve. The gas line entry
point is on the the upper left hand side of the fi replace.
See page 19 for connection details.
X
X
Electrical
The 780M is designed to run on battery power and
does not require an electrical source to operate as a
heater. However, if the appliance is fi tted with a fan, a
grounded power source is required.
Conversion Kits
The 780M is supplied as natural gas or propane gas
and is fi eld convertible between fuels. See instructions
packaged with the conversion kits for further
information.
Floor/Hearth
This appliance is approved for installation into existing
solid-fuel burning fi replaces only. Combustible material
such as plywood and so on may be used for leveling
and shimming beneath the unit. This appliance does
not require a hearth other than to support the weight
of certain fronts.
Outdoor Conversion Kit
The 780M models are supplied standard for indoor
applications and may be adapted for installation in
specifi c "outdoor" applications protected from weather
as defi ned in the GV60CKO outdoor conversion kit
manual.
Note: This appliance is designed and approved as a
supplemental heater and provides the potential for
most energy conservation when used while attended.
The use of an alternate primary heat source is
advisable.
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