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NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

Front Glass Enclosure Panel, Removal
and Installation.

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 firmly.

2. 

Position the door frame in front of the

firebox opening and engage the top flange
over the lip at the top of the firebox opening.

3. 

 Swing the door down and back.  Ensure the

gasket seats evenly as the door draws shut.
Engage the Vee-flange at the bottom of the
door with the latches and close the latches to
secure the door.

4. 

 Reinstall the top louver assembly or radiant

panel.

Burner Adjustments

The following paragraphs address burner ad-
justment concerns and procedures.

Flame Appearance and Sooting

Proper flame appearance is a matter of taste.
Generally most people prefer the warm glow of
a yellow to orange flame. Appliances operated
with air shutter openings that are too large will
exhibit flames that are blue and transparent.
These weak, blue and transparent flames are
termed anemic. If the air shutter opening is too
small sooting may develop.

These are direct-vent appliances. They are
designed to operate only with the front glass
enclosure panel properly installed. Generally,
the glass enclosure panel should not be re-
moved except to gain access to the compo-
nents within the firebox, 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.

See 

Figure 5

 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 com-

partment access panel.

3.

 Locate the two (2) latches at the top of the

control compartment and disengage them from
the floor frame bottom Vee-flange, pulling
down on their handles to open them.

Figure 5

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 flames or hot surfaces.

Also note, that while the front glass enclosure
panel is removed, the flame appearance will
appear to be smaller than normal.

CAUTION: DO NOT ATTEMPT TO TOUCH THE
FRONT ENCLOSURE GLASS WITH YOUR
HANDS WHILE THE FIREPLACE IS IN USE.

Note: 

 Clean glass after first two weeks of

operation.

Glass Cleaning

It will be necessary to clean the glass periodi-
cally.  During start-up it is normal for conden-
sation to form on the inside of the glass.  This
can cause lint, dust and other airborne par-
ticles to cling to the glass surface. Also initial
paint curing may deposit a slight film on the
glass.  It is therefore recommended that the
glass be cleaned two or three times with a non-
ammonia household cleaner and warm water
(a gas fireplace glass cleaner is recommended).
After that the glass should be cleaned two or
three times during each heating season, de-
pending on the circumstances present.

WARNING: DO NOT USE ABRASIVE
CLEANERS. NEVER CLEAN THE GLASS
WHEN IT IS HOT.

WARNING:  NEVER OPERATE THE AP-
PLIANCE WITHOUT THE  GLASS EN-
CLOSURE PANEL IN PLACE AND SE-
CURE. DO NOT OPERATE APPLIANCE
WITH THE FRONT GLASS PANEL
CRACKED, BROKEN OR MISSING. RE-
PLACEMENT PANELS ARE AVAILABLE
THROUGH YOUR LOCAL LENNOX
DEALER AND MUST BE INSTALLED BY A
LICENSED OR QUALIFIED SERVICE
TECHNICIAN.

WARNING:  HANDLE THE GLASS
WITH EXTREME CARE!  DO NOT
STRIKE  DOOR.  TEMPERED GLASS
I S   S U S C E P T I B L E   T O   D A M A G E
(SCRATCHES, FOR EXAMPLE) –
HANDLE GLASS DOOR (GLASS EN-
CLOSURE PANEL) GENTLY WHILE
REINSTALLING IT.

WARNING: NO NOT ATTEMPT TO SUB-
STITUTE THE MATERIALS USED ON
THIS DOOR, OR REPLACE CRACKED
OR BROKEN GLASS WITH ANY MATE-
RIALS OTHER THAN THOSE PROVIDED
BY THE APPLIANCE MANUFACTURER.

THE GLASS DOOR OF THIS APPLIANCE
MUST ONLY BE REPLACED AS A COM-
PLETE UNIT AS PROVIDED BY THE
MANUFACTURER.  DO NOT ATTEMPT
TO REPLACE BROKEN, CRACKED OR
CHIPPED GLASS SEPARATELY.

Latch

Latch

Glass Door

Firebox Floor

Bottom Vee-flange

Door Frame

Top Flange
Door Frame

4. 

 Swing the bottom of the door out and raise

it slightly to lift the top flange of the door frame
away from the appliance.

Maintenance

The appliance and venting system should be
thoroughly inspected before initial use and at
least annually by a qualified service techni-
cian. However, more frequent periodic inspec-
tions and cleanings should be performed by
the homeowner. 

Homeowner must contact a

qualified service technician at once if any
abnormal condition is observed.

Refer to the maintenance schedule for mainte-
nance 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.

Summary of Contents for MPD-33 Series

Page 1: ...t treex cut parunqualifi installeur agence de service ou le fournisseur de gaz DIRECT VENT MPD 33 35 40 45 SERIES MODELS OTL Report No 116 F 13 4 s l e d o M t l o v i l l i M s l e d o M c i n o r t...

Page 2: ...ired to operate these units These appliances comply with National Safety Standards and are tested and listed by Omni Test Laboratories Report No 116 F 13 4 to ANSI Z21 88 2000 in Canada CSA 2 33 2000...

Page 3: ...7 2 o t 0 0 5 1 2 0 4 5 4 D P M 0 0 0 9 2 o t 0 0 5 2 2 e v l a V s a G e t a R d e x i F h t i w s l e d o M c i n o r t c e l E s a G e n a p o r P d n a l a r u t a N s e i r e S l e d o M H U T B...

Page 4: ...FF P I L OT L O H I Manifold Pressure Port Inlet Pressure Port Optional ON OFF Rocker Switch Location One of Two Places Piezo Ignitor Optional Burner ON OFF Rocker Switch Location SIT Millivolt Gas Va...

Page 5: ...page 7 and verify the flame pattern and height displayed by the appliance conforms to the picture Flames must not impinge on the logs Refer to Figure 10 SIT Millivolt Figure 11 Honeywell Millivolt or...

Page 6: ...TEMPT TO TOUCH THE FRONT ENCLOSURE GLASS WITH YOUR HANDS WHILE THE FIREPLACE IS IN USE Note Clean glass after first two weeks of operation Glass Cleaning It will be necessary to clean the glass period...

Page 7: ...ith traces of orange at the outer edge The top 10 mm at the pilot generator thermopile and the top min tip of the quick drop out thermocouple should be en gulfed in the pilot flame The flame should pr...

Page 8: ...c fiber logs and twigs over the burner as shown in Figures 7 MPD 3328 8 MPD 3530 or 9 MPD 4035 MPD 4540 For more detailed placement instructions refer to the LOG PLACEMENT GUIDE accompanying this docu...

Page 9: ...e of the appliance SIT And Honeywell Millivolt Wiring Diagram If any of the original wire as supplied must be replaced it must be replaced with Type AWM105 C 18 GA wire Thermopile TH TP TH TP TWIST WI...

Page 10: ...10 NOTE DIAGRAMS ILLUSTRATIONS NOT TO SCALE NOTES...

Page 11: ...ttery power level in dicator timer mode of operation thermostatic display including room temperature in either metric of English units flame indicator and clock Fully programmable the Model RCL T allo...

Page 12: ...L 1 8 B P C 5 4 K D A d e h s u r B s s e l n i a t S h s i n i F 2 6 L 8 9 S B C 3 3 K D A 4 4 M 6 2 S B M C 5 3 K D A 9 6 L 8 9 S B C 0 4 K D A 0 7 L 8 9 S B C 5 4 K D A s t i K l e n a P n e e r c...

Page 13: ...are designed to replace the standard radiant panels that are provided with the fireplace or they may be used to replace the charcoal colored louvers also available with this fireplace They include a t...

Page 14: ...5 H0935 APD40TI 40 Arch Pane Doors Textured Iron H0936 APD40SP 40 Arch Pane Doors Satin Pewter H0937 APD40AB 40 Arch Pane Doors Antique Brass H0938 APD45C 45 Arch Pane Doors Charcoal MPD4540 H0939 APD...

Page 15: ...3571 35 Sunrise Lower Grille Kit Satin Pewter SLGK35SP H3573 SUGK40C 40 Sunrise Upper Grille Kit Charcoal H3575 40 Sunrise Upper Grille Kit Satin Pewter SUGK40SP H3577 SLGK40C 40 Sunrise Lower Grille...

Page 16: ...triggering the spark ignitor pushing the button until pilot lights Continue to hold the control knob in for about 1 minutes after the pilot is lit Release knob and it will pop back up Pilot should rem...

Page 17: ...z le service des incendies C N utilisez que votre main pour manipuler le bouton de r glage du gaz N utilisez jamais d outils Si le bouton refuse de tourner ou de bouger n essayez pas de le r parer Com...

Page 18: ...part of the control system and any gas control which has been under water LIGHTING INSTRUCTIONS ELECTRONIC 1 For complete shut down turn remote wall switch to OFF 2 Open lower control compartment doo...

Page 19: ...sition d arr t OFF 3 Ouvrez la porte du compartiment de contr le du bas 4 Assurez vousquelasoupaped arr tdelacanalisationprincipale est ouverte 5 Tournezlamanetteder glagedugaz lapositiond arr t OFF 6...

Page 20: ...t pilot flame for maximum flame im pingement on thermocouple Figure 10 page 8 SIT and Figure 11 page 8 Honeywell Check burner orifice for stoppage and remove Checkthermopilewithmillivoltmeter Takeread...

Page 21: ...NO Plug Control Harness Into Valve Wait For Internal Check Delay YES Igniter Warms Up And Glows Red With Pilot Burner Cable Connected Measure Voltage At Valve HSI Element Output 24V Nominal See Insert...

Page 22: ...5 2 M 4 2 1 5 2 M 4 2 1 9 y l b m e s s A r e n r u B 8 5 M 4 2 1 8 5 M 4 2 1 9 5 M 4 2 1 9 5 M 4 2 1 0 1 y l b m e s s A e t a r G 3 8 5 4 H 1 3 8 5 4 H 1 3 8 5 4 H 1 3 8 5 4 H 1 1 1 r e n r u B n i...

Page 23: ...TE DIAGRAMS ILLUSTRATIONS NOT TO SCALE REPLACEMENT PARTS 4 7 1 11 5 40 13 12 6 42 3 8 9 30 31 32 33 34 35 40 45 40 45 14 36 37 15 9 33 35 33 35 8 20 21 10 40 45 33 35 10 23 22 24 26 25 27 41 43 44 2 R...

Page 24: ...5 014M REV K 03 2007 Lennox Hearth Products reserves the right to make changes at any time without notice in design materials specifications prices and also to discontinue colors styles and products C...

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