Lucent Technologies MPB-33

8NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

To install the front glass enclosure panel,

proceed as follows:

1. Retrieve the glass door frame. Visually

inspect the gasket on the backside of the

panel. The gasket surface must be clean,

free of irregularities and seated ﬁ rmly.

2. Position the door frame in front of the ﬁ rebox

opening and engage the top ﬂ ange over the

lip at the top of the ﬁ rebox opening.

3. Swing the door down and back. Ensure the

gasket seats evenly as the door draws shut.

Engage the Vee-ﬂ ange at the bottom of the

door with the latch and close the latch to

secure the door.

4. Reinstall the top louver assembly or radiant

panel.

These appliances are designed to operate only

with the front glass enclosure panel properly

installed. Generally, the glass enclosure panel

should not be removed except to gain access

to the components within the ﬁ rebox, and the

appliance may only be operated without the

front glass enclosure panel in place for very

brief periods of time during initial appliance

checkout and adjustment.

During this appliance checkout and adjust-

ment period, a potential safety hazard exists

- EXERCISE EXTREME CAUTION to prevent

the occurrence of any burn injuries from the

exposed ﬂ ames or hot surfaces. Also note,

that while the front glass enclosure panel is

removed, the ﬂ ame appearance will appear to

be smaller than normal.

Refer to Figure 6 and remove the front glass

enclosure panel as follows:

1. Remove the top louver assembly or radiant

panel.

2. Open the hinged drop-down control compart-

ment access panel.

3. Locate the latch at the top of the control

compartment and disengage it from the door

frame bottom Vee-ﬂ ange, pulling down on its

handle to open it.

4. Swing the bottom of the door out and raise

it slightly to lift the top ﬂ ange of the door frame

away from the appliance.

Figure 6

Maintenance

The appliance and venting system should be

thoroughly inspected before initial use and at

least annually by a qualiﬁ ed service technician.

However, more frequent periodic inspections

and cleanings should be performed by the ho-

meowner. Homeowner must contact a qualiﬁ ed

service technician at once if any abnormal

condition is observed.

Refer to the maintenance schedule for main-

tenance tasks, procedures, periodicity and

by whom they should be performed. Always

verify proper operation of the appliance after

servicing.

IMPORTANT: TURN OFF GAS AND ANY

ELECTRICAL POWER BEFORE SERVICING

THE APPLIANCE.

Front Glass Enclosure Panel, Removal

and Installation.

Figure 5

Blocked Flue Safety Limit Location

Inside View of Firebox -

Top/Right Side Intersection

Detail A

Detail C

Detail B

Scoop

Scoop Securing Screws

Fire Box Top

Lintel Securing Screw

Hole in Cabinet Top

Fire Box Top

Limit

Limit/Bracket

Securing Screws

Lintel Securing-Scre

Hole in Cabinet Top

Wire

Termianls

Back Of

Limit

Switch

Cabinet

Corner

Door

Frame

Latch Glass Door

Firebox Floor

Bottom Vee-flange

Door Frame

Top Flange

Door Frame

IMPORTANT

The glass door of this appliance must

only be replaced as a complete unit as

provided by the manufacturer. Do not

attempt to replace broken, cracked

or chipped glass separately.

WARNING

Never operate the appliance with-

out the glass enclosure panel in

place and secure. Do not operate

appliance with the FRONT glass

panel cracked, broken or missing.

Replacement panels are available

through your local LENNOX Dealer

and must be installed by a licensed

or qualiﬁ ed service technician.

WARNING

Handle the glass with extreme care!

Tempered glass is susceptible to

damage (scratches, for example)

– Handle glass door (glass enclosure

panel) gently while reinstalling it.

WARNING

Do not attempt to substitute the mate-

rials used on this door, or replace

cracked or broken glass with any

materials other than those provided

by the appliance manufacturer.

WARNING

Turn off gas and electrical power

before servicing the appliance.