Maintenance; General; Cleaning; Sit Hi-Lo Burner Adjustment - Montigo L52DF-ST Installation And Maintenance Manual

L52DF-ST* Indoor Gas Fireplace

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
gaskets to ensure a proper seal.
• An inspection of the burner, vent run, and primary air open-
ings.
• 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.
•
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 pres-
„
sure 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. Imme-
„
diately 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. Film
can easily be removed by removing the door, as shown on Page
19. Handle the door carefully, and clean it 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", leav-
„
ing a visual deposit of a white substance on combustion chamber
walls. This can easily be removed from the chamber walls using
normal household products.
Use a vacuum cleaner or whisk broom to keep the control com-
„
partment, burner, and firebox free from dust and lint.
Clean the primary air openings from lint, embers, dust, etc.
„
Page 22

Maintenance

Hi-Lo Burner Adjustment: (SIT Nova 820).
The L52DF-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 centre of the gas control valve (See
Figure 19).
To raise the flame height, turn the black knob (located behind
„
the lower control compartment) counter-clockwise.
To lower the flame height, turn clockwise.
„
Inlet Pressure
Gas Control Knob (Shown in "Pilot" position)
Figure 19.
Hi-Lo Burner Adjustment: (SIT Proflame).
The L52DF-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 centre of the gas control valve (See
Figure 20).
To raise the flame height, turn the black knob (located behind
„
the lower control compartment) counter-clockwise.
To lower the flame height, turn clockwise.
„
Figure 20.
Pilot Burner Adjustment.
1. Locate Pilot Adjustment Screw. (See figure 19 or 20.)
2. Adjust pilot screw to provide properly sized flame as shown.
3. After installing or servicing, leak test with a soap solution with
main burner on. Coat pipe and tubing joints, gasket etc. with soap
solution. Bubbles indicate leaks. Tighten any areas where the
bubbles appear until the bubbling stops completely.
Pilot Adjustment Screw
'Hi-Lo' Adjustment Knob
Manifold Pressure
Test Connection
'Hi-Lo' Adjustment on the SIT Nova 820 gas valve,
Manifold Pressure
Test Connection
Inlet Pressure
Test Connection Pilot Adjustment Screw
'Hi-Lo' Adjustment on the SIT Proflame gas valve.
Power
Generator
Wall Switch
Hi Lo Adjustment
XG0811 -100511.1