www.desatech.com
119426-01F
2
SAFETy INFORMATION
TAbLE OF CONTENTS
Safety Informa ion ............................................... 2
Unpacking............................................................ 4
Product Identification
........................................... 5
Local Codes......................................................... 5
Optional Remote Control Accessories ................. 5
Product Features ................................................. 5
Air For Combustion and Ventilation ..................... 6
Installation ........................................................... 8
Operating Heater ............................................... 20
Inspecting Burners............................................. 25
Cleaning and Maintenance ................................ 26
Wiring Diagram .................................................. 27
Troubleshooting ................................................. 28
Optional Positioning of Thermostat
Sensing Bulb ................................................ 32
Specifications
.................................................... 33
Illustrated Parts Breakdown and Parts List........ 38
Service Hints ..................................................... 41
Technical Service............................................... 41
Replacement Parts ............................................ 41
Accessories ....................................................... 41
WARNING: Improper
installation, adjustment,
alteration, service or
maintenance can cause
injury or property dam-
age. Refer to this manual
for correct installation
and operational proce-
dures. For assistance or
additional information
consult a qualified in-
staller, service agency or
the gas supplier.
WARNING: This ap-
pliance is for installation
only in a solid-fuel burning
masonry or UL127 fac-
tory-built fireplace or in a
listed ventless firebox en-
closure. It is design-certi-
fied for these installations
in accordance with ANSI
Z21.11.2. Exception: Do
not install this appliance
in a factory-built fireplace
that includes instructions
stating it has not been test-
ed or should not be used
with unvented gas logs.
WARNING: This is an
unvented gas-fired heat-
er. It uses air (oxygen)
from the room in which
it is installed. Provisions
for adequate combustion
and ventilation air must
be provided. Refer to
Air
for Combustion and Ven-
tilation
section on page 6
of this manual.
This appliance may be in-
stalled in an aftermarket,*
permanently located,
manufactured (mobile)
home, where not prohib-
ited by local codes.
This appliance is only for
use with the type of gas
indicated on the rating
plate. This appliance is
not convertible for use
with other gases.
* Aftermarket: Completion of sale, not for
purpose of resale, from the manufacturer
