General; Cleaning; Maintenance; Hi-Lo Burner Adjustment: (Sit Nova 820) - Montigo L52DF-ST Installation & Maintenance Manual

L52DF*ST Indoor Gas Fireplace

Maintenance

General

Have the fireplace and installation inspected yearly. The inspec-
„
tion 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 pres-
„
sure 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.
„
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 smok-
ing 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 21. 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 30
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 21).
To raise the flame height, turn the black knob (located be-
„
hind the lower control compartment) counter-clockwise.
To lower the flame height, turn clockwise.
„
Inlet Pressure
Gas Control Knob (Shown in "Pilot" position)
Figure 21.

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

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 22).
To raise the flame height, turn the black knob (located be-
„
hind the lower control compartment) counter-clockwise.
To lower the flame height, turn clockwise.
„
Figure 22.

Pilot Burner Adjustment.

1. Locate Pilot Adjustment Screw. (See figure 21 or 22.)
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 indi-
cate 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 2 gas valve.
Power
Generator
Wall Switch
Hi Lo Adjustment
XG0811 - 151126