Maintenance; Hi-Lo Burner Adjustment: (Sit Nova 820); Hi-Lo Burner Adjustment: (Sit Proflame 2); Pilot Burner Adjustment - Montigo L42DF ST Installation & Maintenance Manual

L42DF-ST* Indoor Gas Fireplace

Maintenance

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
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.
• 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.
Inspection of glass doors and screens for damage and proper
„
installation.
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 25. 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",
„
leaving 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
„
compartment, burner, and firebox free from dust and lint.
Clean the primary air openings from lint, embers, dust, etc.
„
Page 34
Maintenance

Hi-Lo Burner Adjustment: (SIT Nova 820).

The L42DF-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 26).
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 26. 'Hi-Lo' Adjustment on the SIT Nova 820 gas valve,

Hi-Lo Burner Adjustment: (SIT Proflame 2).

The L42DF-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 27).
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 27. 'Hi-Lo' Adjustment on the SIT Proflame 2 gas valve.

Pilot Burner Adjustment.

1. Locate Pilot Adjustment Screw. (See figure 26 or 27.)
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.
'Hi-Lo' Adjustment Knob Pilot Adjustment Screw
Manifold Pressure
Test Connection
Manifold Pressure
Test Connection
Inlet Pressure
Pilot Adjustment Screw
Test Connection
Power
Generator
Wall Switch
Hi Lo Adjustment
XG0182 - 151126