Page 16
Vista 42 ST See-thru Gas Fireplace
rev.110404
Maintenance
Operation
Lighting Instructions
See page 15.
General
Have the fireplace and installation inspected yearly
. The inspection must
include, but is not limited to, the following:
•
A visual check of the entire vent system and termination.
•
An inspection of the explosion relief flappers and the door gasketing to
ensure a proper seal.
•
An inspection of the burner, venturi, and primary air openings.
•
An inspection of the gas valve, gas components, and pilot flame. For your
convenience a 1/8" manifold pressure tap is supplied on the gas valve for a
test gauge connection. See Figure 26.
•
Ensure proper fire media placement as per this manual.
•
Inspection of all optional equipment; fans, thermostats, etc.
For
Natural Gas
this appliance requires a minimum inlet pressure of 5.5" w.c.
and a manifold pressure of 3.5" w.c.
For
Propane Gas
this appliance requires a minimum inlet pressure of 11" w.c.
and a manifold pressure of 10" w.c.
Always keep the fireplace area clear and free of combustible materials, as well
as gasoline and other flammable vapors and liquids.
Do not use this appliance if any part has been under water
. Immediately call a
qualified service technician to inspect the appliance and to replace any part of
the control system and any gas control which has been under water.
Cleaning
When the fireplace is first activated, there may be some smoking and a visible film
may be left on the glass. This is a normal condition, and is the result of burning of
protective coatings on new metal.
Glass must be cleaned periodically to remove any film (which is a normal by-
product of combustion) which may be visible. Remove the doors, as previously
shown, and clean them with non-abrasive glass cleaners. One of the most effective
products is Kel Kem.
Silicone seals on inner door during initial firing will "off gas", leaving a visual
deposit of a white substance on combustion chamber walls. This can easily be
removed using normal household products.
Use a vacuum cleaner or whisk broom to keep the control compartment, burner,
and firebox free from dust and lint.
Burner Adjustment
The
Vista 42 ST
is equipped with an adjustable burner, allowing you to raise or
lower the flames. To adjust the flames, locate the black knob marked 'Hi-Lo', in the
center of the gas control valve (See Figure 25). The front burners are not adjustable.
To raise the flame height, turn the black knob (located behind the lower trim)
counterclockwise
.
To lower the flame height, turn
clockwise
.
Figure 25.
Hi-Lo' Adjustment on the Vista 42 ST's gas valve.
