Vented Gas Log Set Models: VDY24/18, VDY30 WARNINGS Installation and Operating Instructions If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life. – Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. – WHAT TO DO IF YOU SMELL GAS • Do not try to light any appliance. • Do not touch any electrical switch; do not use any phone in your building.
"Duzy" Series Vented Gas Log Sets contents Thank you and congratulations on your purchase of an MHSC Log Set. PLEASE READ THE INSTALLATION AND OPERATION INSTRUCTIONS BEFORE USING THE APPLIANCE! IMPORTANT: Read all instructions and warnings carefully before starting installation. Failure to follow these instructions may result in a possible fire hazard and will void the warranty. Important Safety Information ..................................... 3 Fireplace Draft Test ....................................
IMPORTANT SAFETY INFORMATION "Duzy" Series Vented Gas Log Sets OWNER Please leave these instructions with the appliance. Please retain these instructions for future reference. 1. The installation, combustion and ventilation air must conform with local codes or, in the absence of local codes, with the National Fuel Gas Code, ANSI Z223.1. 2. This unit complies with ANSI Z21.60 • CSA 2.26 Decorative Gas Appliance for Installation in Solid-Fuel Burning Fireplace. 3.
"Duzy" Series Vented Gas Log Sets GETTING STARTED - FEATURES & SPECIFICATIONS Make sure you have received all parts: Check your packing list to verify that all listed parts have been received.
"Duzy" Series Vented Gas Log Sets PRODUCT SPECIFICATIONS Install and operate the appliance as directed in this manual Damper stop installation MINIMUM HEARTH DIMENSIONS A A damper stop is provided with the unit. The damper stop must be installed as shown in Figure 2 to prevent full closure of the fireplace damper blade and provide a minimum flue opening, per table below.
"Duzy" Series Vented Gas Log Sets Placement in a fireplace with a restrictive barrier Important information for the installation of this gas log set The following are guidelines for placing a gas log set in a fireplace that has a restrictive barrier along the bottom front opening of the fireplace. Some examples of barriers are glass/screen door frames and sunken/ recessed fireplaces.
installation "Duzy" Series Vented Gas Log Sets GAS LINE CONNECTION You must secure the gas log heater to the fireplace floor. Properly securing the grate prevents movement of the entire unit when you adjust the controls. Grate movement could cause a gas leak. Assembly procedure 1. Center the gas log unit in the fireplace or firebox. Make certain the front feet of the grate sit inside the front edge of the fireplace or firebox. 2. Refer to Figure 4 for hole locations.
GAS LINE CONNECTION "Duzy" Series Vented Gas Log Sets The heater gas inlet connection is 3/8" NPT at the regulator, inlet on the right side facing the gas log. If a left side connection is required, the connecting pipe may be led under the rear of the gas logs or behind the grate for connection to the inlet. NOTE: The millivolt valve has an internal regulator, thus the incoming gas line connects directly to the valve.
WARNING ELECTRICAL WIRING - MILLIVOLT "Duzy" Series Vented Gas Log Sets Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. THTP Millivolt Valve TP TH Pilot FP2857 Figure 8 Wiring Diagram Optional Wall Switch or Remote Receiver Switch The Millivolt (thermopile) is a self powered combination A. Complete Millivolt System Check gas control that does not require 110VAC to FP2857 operate.
LOG PLACEMENT "Duzy" Series Vented Gas Log Sets LOG PLACEMENT IMPORTANT: Remove logs, handling carefully by holding gently at each end. Gloves are recommended to prevent skin irritation from ceramic fibers. If skin becomes irritated, wash gently with soap and water. Right Log #2 DUZY II VDY24/18D2A 1. Install the rear log (#1) on the two locating pins of base. Figure 9. Visually check to verify the log is securely placed on the pins and in contact with the grate.
LOG PLACEMENT "Duzy" Series Vented Gas Log Sets Right Log #2 Duzy II VDY30D2A Log PLACEMENT 1. Install the rear log (#1) on the two locating pins of base. Figure 14. Visually check to verify the log is securely placed on the pins and in contact with the grate. Figure 15 Locator Pins LG978 LG976 Figure 16 Left Log #3 LG978 VDY30D2 right log Control Cover Figure 14 Rear Log #1 LG976 VDY30D2A base Bottom Groove LG979 Figure 17 Top Log #4 LG979 VDY30D2 left log LG977 Figure 15 2.
"Duzy" Series Vented Gas Log Sets LOG PLACEMENT DUZY III VDY24/18D3R Log PLACEMENT 1. Align pins on bottom of rear log #1 with pins on grate bar and place on grate. Figures 19 and 20 Front Right Log #3 Front Left Log #2 Locator Pins LG983 Cutout Figure 21 LG983 VDY2418D3R front right log Top Middle LG972 Log #4 Figure 19 Control Cover Rear Log #1 LG972 VDY24_18D2 base LG984 Figure 22 Notch Top Right Log #5 Figure 20 LG981 Top Left Log #6LG984 VDY2418D3R top mid log 2.
"Duzy" Series Vented Gas Log Sets LOG PLACEMENT DUZY III VDY30D3R LOG PLACEMENT Front Right Log #3 Front Left Log #2 1. Align pins on bottom of rear log #1 with pins on grate bar and place on grate. Figures 24 and 25 Locator Pins LG976 LG987 Figure 26 Top Mid Log #4 LG987 VDY30D3R front logs Control Cover Figure 24 Rear Log #1 LG976 VDY30D2A base LG988 Figure 27 Figure 25 LG986 Top Left Log #6 2.
LOG PLACEMENT "Duzy" Series Vented Gas Log Sets DUZY IV VDY24/18D4 Log PLACEMENT Bottom Front Log #2 1. Place bottom front log (#2) on front of grate. Figure 29 2. Place back log (#1) on back of grate aligning two (2) pins on grate with holes in bottom of log. Figure 30 Locator Pins LG990 Figure 29 Back Log #1 LG990 VDY2418D4 bottom front log LG972 Control Cover LG972 Figure 30 VDY24_18D2 base LG991 Top Left Log #3 Center Crossover Log #4 LG991 VDY2418D4 back log 3.
LOG PLACEMENT "Duzy" Series Vented Gas Log Sets 5. Place left top crossover log (#5) against left top log. Figure 32 LG993 Left Crossover Log #5 Figure 32 Right Top Log #6 LG993 VDY2418D4 left cross log 6. Rest right top log (#6) on center crossover log and front of grate.
LOG PLACEMENT "Duzy" Series Vented Gas Log Sets Bottom Front Log #2 DUZY IV VDY30D4 Log placement 1. Place bottom front log (#2) on front of grate. Figure 34 2. Place back log (#1) on back of base aligning two (2) pins on base with holes in bottom of log. Figure 35 Locator Pins LG995 Figure 34 LG976 LG995 VDY30D4 bottom log Back Log #1 Control Cover Figure 35 LG976 VDY30D2A base LG996 LG996 VDY30D4 back log Center Crossover Log #4 Top Left Log #3 3.
"Duzy" Series Vented Gas Log Sets LOG PLACEMENT Right Top Log #6 5. Place left top crossover log (#5) up against left top log. Figure 37 6. Rest right top log (#6) on center crossover log and front of grate. Figure 37 LG998 Left Crossover Top Log #5 Figure 37 LG998 VDY30D4 lt cross top rt logs 7. Place small front log (#7) between center crossover log and top left log.
LOG PLACEMENT "Duzy" Series Vented Gas Log Sets DUZY V LOG VDY24/18D5 Locator Pins 1. Place back log (#1) on back of base aligning two (2) pins on base with holes in bottom of log. Figures 39 and 40 Back Log #1 LG972 Figure 39 Control Cover LG972 VDY24_18D2 base LG1000 Figure 40 LG1000 VDY2418D5 BACK LOG Bottom Left Log #3 Bottom Right Log #2 2. Placed bottom right log (#2) on right side of grate. Figure 41 3. Place bottom left log (#3) on left side of grate.
LOG PLACEMENT "Duzy" Series Vented Gas Log Sets Middle Right Log #5 Middle Left Log #4 4. Place one end of middle left log (#4) on bottom left log. Rest other end of middle left log (#4) behind middle right log. Figure 42 5. Place middle right log (#5) on top of bottom right log. Figure 42 LG1002 Figure 42 Top Right Log #6 Top Left Log #7 LG1002 VDY2418D5 top rt lt logs 6. Rest top right log (#6) on back log and bottom right log. Figure 43 7. Place top left log (#7) on bottom left log.
"Duzy" Series Vented Gas Log Sets LOG PLACEMENT DUZY V VDY30D5 Log PLACEMENT Locator Pins 1. Place back log (#1) on back of base aligning two (2) pins on base with holes in bottom of log. Figures 45 and 46 LG976 Back Log #1 Figure 45 Control Cover LG976 VDY30D2A base LG1005 Figure 46 Bottom Left Log #3 LG1005 VDY30D5 back log 2. Place bottom right log (#2) on right side of grate in front of back log. Figure 47 3. Place bottom left log (#3) on left side of grate in front of back log.
"Duzy" Series Vented Gas Log Sets LOG PLACEMENT Middle Right Log #5 5. Place middle right log (#5) on top of bottom right log. Figure 49 LG1008 Figure 49 LG1008 Top Left Log #7 VDY30D5 mid right log Top Right Log #6 6. Place top right log (#6) on middle right log and back log. Figure 50 7. Place top left log (#7) on bottom left log and middle left log. Figure 50 LG1009 Figure 50 LG1009 VDY30D5 top logs 8. Place middle front log (#8) between second and third grate bars.
"Duzy" Series Vented Gas Log Sets Fireplace draft test Cover the burner pan with glowing embers (rock wool) provided. Tear pieces approximately 1/2" in size (roughly the size of a nickel) and cover the burner evenly. DO NOT… 1. Pile the rock wool too thickly on pan. 2. Place rock wool higher than the top of the front grate bar. 3. Cover the pilot with rock wool. Placement of Decorative Volcanic Rock Sprinkle volcanic rock in front of front glowing embers and to both sides.
"Duzy" Series Vented Gas Log Sets FLAME APPEARANCE Checking Burner Flames In normal operation at full rate after approximately 15 minutes, the following flame appearance should be observed. Rear flame should be yellow and extend vertically. Maximize spacing on top logs. Burner flames should become yellow as they contact embers on the face of the log. The log face will glow a bright reddish orange. Ember bed should have a yellow/orange glow.
OPERATING INSTRUCTIONS "Duzy" Series Vented Gas Log Sets SAFETY INSTRUCTION FOR MANUAL AND Millivolt CONTROL WITH PILOT for your safety read before lighting WARNING A. This appliance is equipped with an ignition device which automatically lights the pilot. B. BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor. WHAT TO DO IF YOU SMELL GAS: • Do not attempt to light any appliance.
OPERATING INSTRUCTIONS "Duzy" Series Vented Gas Log Sets Millivolt CONTROL LIGHTING INSTRUCTIONS WARNING 1. STOP! Read the safety information label. 2. Make sure the manual shutoff valve is fully open. 3. This gas log set is equipped with an ignition device (piezo) which automatically lights the pilot. If piezo ignitor does not light the pilot, see instructions for Match Lighting below. 4. Turn gas control knob clockwise to the “OFF” position, and turn ON/OFF switch to “OFF” position. 5.
optional remote receiver - millivolt "Duzy" Series Vented Gas Log Sets remote receiver installation Do not place the remote in the fireplace if any of the following conditions apply: • The floor of the fireplace is recessed below the fireplace opening. See Warnings on Page 6. • The fireplace has glass doors which when open reduces the opening width to 1Z\x" or more below • • the stated minimum dimensions within the homeowner’s manual. The floor of the fireplace is sheet metal without a brick covering.
WARNING CLEANING and SERVICING "Duzy" Series Vented Gas Log Sets Turn off gas logs and allow to cool before cleaning. Disconnect electrical power if applicable before cleaning or servicing. Remove logs, handling carefully by holding gently at each end. Gloves are recommended to prevent skin irritation from ceramic fibers. If skin becomes irritated, wash gently with soap and water. See manual for correct log placement. Periodic Cleaning - See parts diagram for location of items discussed below.
TROUBLESHOOTING WARNING "Duzy" Series Vented Gas Log Sets Turn off appliance and allow to cool before cleaning. Only a qualified service person should service and repair the heater. Problem When ignitor button is pressed, there is no spark at pilot. Appliance produces unwanted odors. Appliance shuts off during use. Gas odor even when control knob is in OFF position. When ignitor button is pressed, there is spark at pilot, but no ignition.
"Duzy" Series Vented Gas Log Sets TROUBLESHOOTING Problem Possible Cause Pilot lights, but flame goes out when control knob is released. 1. Control knob not fully pressed in. 2. Control knob not pressed in long enough. 3. Manual shutoff valve not fully open. 1. Burner orifice is clogged or damaged 2. Burner is damaged. 3. Gas regulator defective. 1. Manifold Pressure is too low. 2. Burner orifice is clogged. 1. Burner orifice is clogged or damaged. 2. Burner is damaged. 3. Gas regulator is defective. 1.
REPLACEMENT PARTS "Duzy" Series Vented Gas Log Sets 1 3 2 7 4 6 5 24/18 MODELS Ref. 1. 2. 3. 4. 5. 6. 7.
REPLACEMENT PARTS "Duzy" Series Vented Gas Log Sets 4 6 4 3 5 2 2 3 1 1 LG1012 VDY24/18D2 logs LG1013 VDYD3R logs DUZY (III) LOG SERIES DUZY (II) LOG SERIES Ref. 1. 2. 3. 4. Description Rear Log Right Log Left Log Top Log 32D1999 Qty. 1 1 1 1 VDY24/18D2 32D0400 32D0401 32D0402 32D0403 VDY30D2 32D0410 32D0411 32D0412 32D0413 Ref. 1. 2. 3. 4. 5. 6. Description Qty.
REPLACEMENT PARTS "Duzy" Series Vented Gas Log Sets 7 3 4 1 6 2 5 DUZY (IV) LOG SERIES Ref. 1. 2. 3. 4. 5. 6. 7. 32 Description Qty.
REPLACEMENT PARTS "Duzy" Series Vented Gas Log Sets 1 7 6 2 3 8 4 5 DUZY (V) LOG SERIES Ref. 1. 2. 3. 4. 5. 6. 7. 8. Description Back Log Bottom Right Log Bottom Left Log Middle Left Log Middle Right Log Top Right Log Top Left Log Front Middle Log 32D1999 Qty.
REPLACEMENT PARTS "Duzy" Series Vented Gas Log Sets 7 6 1 5 4 2 3 8 DUZY (V) LOG SERIES Ref. 1. 2. 3. 4. 5. 6. 7. 8. 34 Description Back Log Bottom Right Log Bottom Left Log Middle Left Log Middle Right Log Top Right Log Top Left Log Middle Front Log Qty.
"Duzy" Series Vented Gas Log Sets Massachusetts Residents Only — Please read and follow these special requirements NOTE REGARDING VENTED PRODUCTS This product must be installed by a licensed plumber or gas fitter when installed within the Commonwealth of Massachusetts. Any residence with a direct vent product must have a CO detector installed in the residence.
Limited Lifetime Warranty Policy Lifetime Warranty The following components are warranted for life to the original owner, subject to proof of purchase: Firebox, Combustion Chamber, Heat Exchanger, Grate and Stainless Steel Burners. Five Year Warranty The following components are warranted for 5 years to the original owner, subject of proof of purchase: Ceramic Fiber Logs, Catalytic Filter and Aluminized Burners.