www.desatech.com
110021-01N
2
SAFETy INFORMATION
TABLE OF CONTENTS
Safety Informa ion ............................................... 2
Product Identification ........................................... 5
Optional Remote Control Accessories ................. 5
Local Codes......................................................... 5
Unpacking............................................................ 6
Product Features ................................................. 6
Air For Combustion and Ventilation ..................... 6
Installation ........................................................... 8
Operating Heater ............................................... 20
Inspecting Burners............................................. 25
Cleaning and Maintenance ................................ 26
Troubleshooting ................................................. 28
Optional Positioning of Thermostat Sensing Bulb....32
Wiring Diagram .................................................. 33
Specifications .................................................... 34
Illustrated Parts Breakdown and Parts List........ 35
Replacement Parts ............................................ 40
Technical Service............................................... 40
Service Hints ..................................................... 40
Accessories ....................................................... 41
WARNING: Improper in-
stallation, adjustment, al-
teration, service or main-
tenance can cause in-
jury or property damage.
Refer to this manual for
correct installation and
operational procedures.
For assistance or addi-
tional information con-
sult a qualified installer,
service agency or the gas
supplier.
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.
WARNING: This appliance
is for installation only in a
solid-fuel burning mason-
ry or UL127 factory-built
fireplace or in a listed vent-
less firebox enclosure. It is
design-certified for these
installations in accordance
with ANSI Z21.11.2. Excep-
tion: Do not install this
appliance in a factory-built
fireplace that includes
instructions stating it has
not been tested or should
not be used with unvented
gas logs.
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
