Lennox DIRECT VENT MERIT LMDV-33 SERIES Care And Operation Instructions Manual

Direct vent merit lmdv-33/35/40 series gas fireplace heaters

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LMDV-3530 MODEL SHOWN

WARNING: IF THE INFORMATION IN THIS MANUAL

IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLO-

SION MAY RESULT CAUSING PROPERTY DAMAGE,

PERSONAL INJURY OR LOSS OF LIFE.

FOR YOUR SAFETY: Do not store or use gasoline

or other ﬂ ammables or liquids in the vicinity of

this or any other appliance.

FOR YOUR SAFETY: What to do if you smell gas:

• DO NOT light any appliance.

• DO NOT touch any electrical switches.

• Do not use any phone in your building.

• Immediately call your gas supplier from a

neighbor's phone. Follow your gas suppliers

instructions.

• If your gas supplier cannot be reached, call

the ﬁ re department.

Installation and service must be performed by

a qualiﬁ ed installer, service agency or the gas

supplier.

HOMEOWNER'S CARE AND

OPERATION INSTRUCTIONS

DIRECT VENT MERIT

LMDV-33/35/40 SERIES

DIRECT-VENT GAS FIREPLACE HEATERS

P/N 875,028M REV. C 06/2005

MODELS

Millivolt Models

LMDVT-3328CNM

LMDVT-3328CPM

LMDVR-3328CNM

LMDVR-3328CPM

LMDV-3530CNM

LMDV-3530CPM

LMDV-4035CNM

LMDV-4035CPM

RETAIN THESE INSTRUCTIONS

FOR FUTURE REFERENCE

A French manual is available upon request. Order P/N 875,028CF

Ce manuel d'installation est disponible en francais, simplement en

faire la demande. Numéro de la pièce 875,028CF

Listing Agency

Electronic Models

LMDVT-3328CNE

LMDVR-3328CNE

LMDV-3530CNE

LMDV-4035CNE

OTL Report No. 116-F-31-5

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Summary of Contents for Lennox DIRECT VENT MERIT LMDV-33 SERIES

Page 1: Operation Instructions
LMDV-3530 MODEL SHOWN WARNING: IF THE INFORMATION IN THIS MANUAL IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLO- SION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE. FOR YOUR SAFETY: Do not store or use gasoline or other ﬂ ammables or liquids in the vicinity of this or any other appliance.
Page 2: Table Of Contents
CONGRATULATIONS! In selecting this LENNOX Direct-Vent Gas Appliance you have chosen the ﬁ nest and most dependable ﬁ replace to be found anywhere. Its a beautiful, prestigious alternative to a wood burning ﬁ replace. Welcome to a Family of tens of thousands of satisﬁ ed LENNOX Fireplace Owners.
Page 3 Gas Pressure - Tables 4, 5 and 6 show the appliances' gas pressure requirements. Inlet Gas Supply Pressure (all models) Fuel # Minimum Maximum 5.0" WC 10.5" WC Natural Gas (1.24 kPa) (2.61 kPa) 11.0" WC 13.0" WC Propane (2.74 kPa) (3.23 kPa) Table 4 Manifold Gas Supply Pressure...
Page 4: Gas Controls Access
WARNING These fireplaces are vented heaters. Do not burn wood or other material in these appli- ances. WARNING This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases, unless a certiﬁ...
Page 5: Variable Flame Adjustment
Electronic Appliances - To light electronic appliances refer to the detailed lighting instructions found on Page 18 of these instructions. Electronic appliance lighting instructions may also be found on the pull out lighting instruction labels attached to the gas control valve. Honeywell Electronic Gas Valve Manifold Pressure ON / OFF Switch...
Page 6 Clean Lower Control Compartment Keep lower control compartment clean by vacuuming or brushing it out at least twice a year (also clean the air venturi with a brush or wire). More frequent cleaning may be required due to accumulation of lint from carpeting, bedding materials, pet hair, spider webs, etc.
Page 7: Front Glass Enclosure Panel, Removal And Installation
Top Flange on Glass Door Glass Door Bottom Vee-ﬂ ange Glass Door Firebox Floor Glass Door Latch Figure 6 - INSTALLING GLASS DOOR Removing Glass Enclosure Panels (see Figure 6) 1. Remove the top louver assembly by pulling it up and out. 2.
Page 8: Install Vermiculite, Volcanic Stone
INSTALL VERMICULITE, VOLCANIC STONE, GLOWING EMBERS AND LOGS 1. Remove the front glass enclosure panel (see Removing Glass Enclosure Panels on this page). 2. Carefully remove the old logs, embers volcanic stone and vermiculite from the ﬁ rebox. Handle logs carefully to prevent breakage.
Page 9: Embers & Logs
MODEL LMDV-3328 & LMDV-3530 Log Placement Instructions LOG SET Catalog Number H3366 * Item Description Log, Rear Log, Left Log, Left Center Log, Right Center Log, Right * Item "letters" above correspond to photos Install the Embers, Vermiculite, Volcanic Stone and Logs in the order shown here (1 through 6) and per the instructions on Page 8.
Page 10 MODEL LMDV-4035 Log Placement Instructions LOG SET Catalog Number * Item Description Log, Rear Log, Left Log, Center Log, Center Front Log, Right * Item "letters" above correspond to photos Install the Embers, Vermiculite, Volcanic Stone and Logs in the order shown here (1 through 6) and per the instructions on Page 8.
Page 11 BURNER ADJUSTMENTS (QUALIFIED TECHNICIANS ONLY) Flame Appearance and sooting Proper ﬂ ame appearance is a ﬂ ame which is blue at the base and becomes yellowish-orange in the body of the ﬂ ame. When the appliance is ﬁ rst lit, the entire ﬂ ame may be blue and will gradually turn yellowish-orange during the ﬁ...
Page 12: Burner Flame Adjustments
Burner Air Shutter Adjustment Procedure 1. Locate adjustment rod and adjust air shutter to the standard setting as shown in Figure 12 (adjustment rod is located in the lower control compartment). Note: Rotating the adjustment rod clockwise decreases air and counterclockwise increases air.
Page 13: Wiring Diagrams
WIRING DIAGRAMS Wiring diagrams are provided here for refer- ence purposes only. This information is also provided on schematics attached directly to the appliance on a pullout panel located within the control compartment. CAUTION Label all wires prior to discon- nection when servicing con- trols.
Page 14: Accessory Components
ACCESSORY COMPONENTS Product Reference Information Cat. Model Ship. Weight Volumn H3313 LMDVT-3328CNM 95 lb. 13.08 cu. ft. H3314 LMDVT-3328CPM 95 lb. 13.08 cu. ft. H3315 LMDVR-3328CNM 95 lb. 13.08 cu. ft. H3316 LMDVR-3328CPM 95 lb. 13.08 cu. ft. H3317 LMDVT-3328CNE 95 lb.
Page 15 ACCESSORY COMPONENTS (CONTINUED) Forced Air Blower Kits Cat. Model No. Description 80L84 FBK-100 Blower, Standard (single speed) 80L85 FBK-200 Blower, Variable Speed (w/wall-mounted switch) 80L86 FBK-250 Blower, Variable Speed (w/unit-mounted switch) 94L89 FBK-100-36 Blower, Standard, 36 Pack 94L90 FBK-200-36 Blower Kit - Variable Speed with Wall Switch 36 Pack H0543 FBK-250-36...
Page 16 ACCESSORY COMPONENTS (CONTINUED) Polished Brass 3- Piece Trim Kit This kit contains brass trim pieces used to ﬁ n- ish the gaps between the wall board and the fireplace, providing the appliance a brass perimeter highlight. This kit contains the trim pieces and these instructions. 3 Piece Trim Kit Cat.
Page 17: Lighting Instructions - Millivolt
LIGHTING INSTRUCTIONS – HONEYWELL AND SIT MILLIVOLT GAS VALVE WARNING: IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE. A. This appliance has a pilot which must be lighted with a piezo igniter.
Page 18: Lighting Instructions - Electronic
WARNING: IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE. A. When lighting the appliance, follow these instructions exactly. B. BEFORE OPERATING smell all around the appliance area for gas.
Page 19: Maintenance Schedule
MAINTENANCE SCHEDULE Annually (Before the onset of the Burning Season) MAINTENANCE TASK Inspecting/Cleaning Burner, Logs and Controls Check Flame Patterns and Flame Height Inspecting/Cleaning Pilot and Burner Checking Vent System Appliance Checkout Replacing Rockwool Ember Materials Periodically (After the Burning Season) MAINTENANCE TASK Cleaning Firebox Interior Check Flame Patterns and Flame...
Page 20: Troubleshooting Guide - Millivolt
TROUBLESHOOTING Note: Before troubleshooting the gas control system, Ensure external gas shut off valve, located at gas supply inlet, (and wall switch, iff applicable), is in the “ON” position. Important: Valve system troubleshooting should only be accomplished by a qualiﬁ ed service technician. SYMPTOM 1.
Page 21 TROUBLESHOOTING PROCEDURE - ELECTRONIC IGNITION SYSTEM START • Turn Off Gas Supply. • Ensure Valve Switch Is In ON Position. • Disconnect Control Harness. • Set Thermostat To Call For Heat. Insert A End View of Control Harness Connector 24 Volt 24 Volt Hot Common 24 Volt...
Page 22: Replacement Parts List
REPLACEMENT PARTS LIST Item # Description Hood Louver Assembly, Top, Charcoal *Louver Assembly, Bottom, Charcoal Enclosure, Glass Front (Complete) Nameplate, Lennox Latch Log Set (Complete) Burner Assembly Oriﬁ ce, Main Burner - Natural Gas Oriﬁ ce, Main Burner - Propane Gas Bag of Glowing Embers (Rockwool) Bag of Decorative Volcanic Stone Bag of Vermiculite...
Page 23 REPLACEMENT PARTS LMDV-4035 LMDVT-3328 & LMDVR-3530 NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Page 24 LENNOX reserves the right to make changes at any time, without notice, in design, materials, speciﬁ cations, prices and also to discontinue colors, styles and products. Consult your local distributor for ﬁ replace code information. Printed in U.S.A. © 2005 by LENNOX HEARTH PRODUCTS NOTE: DIAGRAMS &...

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Lennox DIRECT VENT MERIT LMDV-33 SERIES Care And Operation Instructions Manual

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