Desa VUL18 - Manual (Page 2)

www.desatech.com 119426-01A 2
SAFETy INFORMATION
TAbLE OF CONTENTS
Safety Information ............................................... 2
Product Identification ........................................... 5
Local Codes......................................................... 5
Optional Remote Control Accessories ................. 5
Unpacking............................................................ 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........ 34
Service Hints ..................................................... 42
Technical Service............................................... 42
Replacement Parts ............................................ 42
Accessories ....................................................... 42
Warranty Information ...........................Back Cover
WARNING: Improper in-
stallation, adjustment, al-
teration, service or main-
tenance can cause injury
or property damage. Refer
to this manual for correct
installation and operation-
al procedures. For assis-
tance or additional infor-
mation consult a qualified
installer, service agency
or the gas supplier.
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.
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