www.desatech.com
108660-01E
11
VENTING INSTALLATION
Continued
Some codes areas allow the use of existing B-
type vent systems if the system is at or above
the recommended diameter of the flue.
The flue connection must be made using
listed B-type connectors and the existing
system must be code inspected for damage
and proper installation.
It is not recommended that this appliance be
common vented with an existing gas burning
appliance. However, if it becomes necessary
to common vent this appliance, the venting
system must be sized and configured in ac
-
cordance with the common venting guides
Appendix G of the current
National Fuel
Gas Code NFPA No. 54/ANSI Z223.1
and in
Canada with
CAN/CSA B149
.
Note:
Before connecting this appliance to an
existing vent system or a common venting
system consult with your local architect, plan
-
ner, or building official.
WARNING: This appliance
must be properly connected
to a system and must not be
connected to a chimney flue
servicing a separate solid fuel
burning appliance.
CHECKING FOR PROPER VENTING
After completing and checking the electrical,
gas and vent connections, follow the lighting
instructions and allow the main burner to run
for approximately 5 minutes. Hold a lit match
or cigarette near top edge of fireplace opening
and play it along entire length of the opening
(see Figure 11). Proper venting should tend to
draw flame or smoke into appliance. Improper
venting or escaping of spillage of burned
gas, is indicated when match flickers or goes
out. Smoke from a cigarette will also tend to
disperse away from the appliance.
If appliance is found to be improperly venting,
shut it off and notify your installer or a qualified
service agency to inspect venting system.
NOTICE: This appliance is
equipped with a vent safety
shutoff switch which will shut
down appliance in case of a
venting problem. Do not bypass
vent safety switch. If appliance
should shut down, contact
a qualified installer, service
agency, or your gas supplier
to have vent inspected before
operating.
Check area along entire top edge of
fireplace opening. Smoke or flame should
be drawn into appliance opening.
Figure 11 - Checking for Spillage
INSTALLATION
WALL SWITCH INSTALLATION
Installation of a wall switch allows you to
activate gas control valve without normal
household electricity since the valve operates
on millivolt current supplied by heat generated
by thermopile. To install wall switch:
1. Remove front refractory access panel by
lifting up and angling out firebox opening
(see Figure 12, page 12).
2. Using wire and connectors provided, at
-
tach red wire to terminal marked TH/TP on
control valve. Attach white wire to blade
connector on open end of safety circuit
wiring (see Figure 13, page 12, and
Wiring
Diagram
, page 31).
Note:
If any of original wire from unit control
must be replaced, use the same type or a
higher rated wire (5 ft. maximum length).
