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Shown with
Log Set
VDY30D3R
Shown with
Log Set
VDY24/18D4
MODELS:
VDY24/18 - VDY30
Natural Gas or Propane/LPG
Control Type: Manual and Millivolt
Approved to ANSI Z21.60
This gas log set is to be installed only
in a solid-fuel burning fireplace with a
working flue constructed of noncom-
bustible material.
INSTALLATION AND OPERATING INSTRUCTIONS
Shown with
Log Set
VDY24/18D2A
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
• Immediately call your gas supplier from a neighbor's
• If you cannot reach your gas supplier, call the
–
Installation and service must be performed
by a qualified installer, service agency or the
gas supplier.
READ AND SAVE THESE INSTRUCTIONS
Shown with
Log Set
VDY24/18D5
WARNINGS
phone in your building.
phone. Follow the gas supplier's instructions.
fire department.
32D1999 2/10 Rev. 9
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Table of Contents
Related Manuals for MHSC VDY24/18D5
Summary of Contents for MHSC VDY24/18D5
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Page 1: Installation And Operating Instructions
INSTALLATION AND OPERATING INSTRUCTIONS Shown with Log Set VDY24/18D5 Shown with Log Set VDY30D3R Shown with Shown with Log Set Log Set VDY24/18D2A VDY24/18D4 WARNINGS MODELS: VDY24/18 - VDY30 Natural Gas or Propane/LPG If the information in this manual is not followed exactly,... -
Page 2: Table Of Contents
VDY24/18D4 Log Installation ......13 VDY24/18D3R Log Installation ....14 VDY30D4 Log Installation ......14 VDY30D3, VDY30D3R and 30VDYD3A Log Installation ...........15 VDY24/18D4 Log Installation ......17 VDY30D4 Log Installation ......18 DUZY 5 Log VDY24/18D5 Log Installation .19 30VDYD5 and VDY30D5 Log Installation ..21 32D1999... -
Page 3: Important Safety Information
3. Installation and repair should be done by a qualified ser- system and any gas control which has been under vice person. MHSC Vented Gas Logs must be installed water. only in a solid-fuel (wood) burning fireplace which can only be constructed of non-combustible material, with 14. -
Page 4: Getting Started
GETTING STARTED MAkE SURE YOU HAVE RECEIVED ALL PARTS: Check your packing list to verify that all listed parts have been received. You should have the following: BURNER - GRATE ASSEMBLY 24/18, 30 • Burner and Grate Weldment Assembly • Lava Rocks (2) •... -
Page 5: Product Specifications
PRODUCT SPECIFICATIONS NATURAL GAS Manual Pressure Millivolt Pressure Regulator Pressure Setting: 4" w.c. Regulator Pressure Setting: 4 . 0 " w.c. Gas Inlet Pressure: Max. 10 1/2" w.c. Gas Inlet Pressure: Max. 10 1/2" w. c. • Min. 6" w.c. Min. -
Page 6: Product/Features Specifications
PRODUCT / FEATURES SPECIFICATIONS * MANUAL SERIES * MILLIVOLT SERIES Model Model VDY 24/18 VDY 24/18 VDY 30 VDY 30 In compliance with ANS Z21.60 • CSA 2.26 and National Fuel Gas Code, Section 6.6 Figure 1 - Minimum Hearth Dimensions BEFORE INSTALLING THE APPLIANCE: •... -
Page 7: Placement In A Fireplace With A Restrictive Barrier
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. -
Page 8: Installation
INSTALLATION PLACING AND SECURING APPLIANCE 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. -
Page 9: Connecting The Gas
CONNECTING THE GAS A qualified gas appliance installer must connect the appliance to the gas supply. Consult all local codes before installation. Use new black iron pipe, steel pipe, copper tubing, or internally tinned copper tubing. Copper or internally tinned copper tubing can only be used according to the National Fuel Gas Code, section 2.6.3, providing gas meets sulfide limits, and where permitted by local codes. - Page 10 CONNECTING THE GAS 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.
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Page 11: Electrical Wiring (Millivolt)
ELECTRICAL WIRING (MILLIVOLT) Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. THTP Millivolt Pilot Valve Switch Figure 8 - wiring Diagram Optional Wall Switch or Remote Receiver The Millivolt (thermopile) is a self powered combination gas control that does not require 110VAC to operate. -
Page 12: Log Placement
LOG PLACEMENT 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. DUzY II VDY24/18D2A LOG INSTALLATION SEQUENCE: 1. -
Page 13: D2A Log Installation
LOG PLACEMENT DUzY II VDY30D2A LOG INSTALLATION Locator Pins SEQUENCE: 1. Install the rear log (#1) on the two locating pins of base. See Figure 14. Visually check to verify the log is securely placed on the pins and in contact with the grate. -
Page 14: Vdy24/18D3R Log Installation
LOG PLACEMENT VDY24/18D3R LOG INSTALLATION Pins SEQUENCE: 1. Line up pins on bottom of Rear Log #1 with pins on grate bar and place on grate. See Figures 19 and 2. Place Front Left Log #2 on left front of grate bar lining up cutout in bottom of log with grate bar. - Page 15 LOG PLACEMENT VDY24/18D3R LOG INSTALLATION SEQUENCE (Continued) 5. Rest Top Right Log #5 on Log #3. See Figure 24. 6. Line up Top Left Log #6 with notches on Log #2 and Log #4. See Figure 25. Top Right Log (#5) Top Left Log (#6) Figure 24 - Placing Top Right Log (#5) Figure 25 - Placing Top Left Log (#6) VDY30D3R LOG INSTALLATION SEQUENCE:...
- Page 16 LOG PLACEMENT VDY30D3R LOG INSTALLATION SEQUENCE (Continued) 2. Place Front Left Log #2 on left front of grate bar lining up cutout in bottom of log with grate bar. See Figure Front Left Log (#2) 28. 3. Place Front Right Log #3 on right front of grate bar lining up cutout in bottom of log with grate bar.
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Page 17: Vdy24/18D4 Log Installation
LOG PLACEMENT Bottom Front Log (#2) VDY24/18D4 LOG INSTALLATION SEQUENCE: 1. Place Bottom Front Log (#2) on front of grate. See Figure 2. Place Back Log (#1) on back of grate lining up two (2) pins on grate with holes in bottom of log. See Figures 34 and 3. -
Page 18: Vdy30D4 Log Installation
LOG PLACEMENT Bottom Front Log (#2) VDY30D4 LOG INSTALLATION SEQUENCE: 1. Place Bottom Front Log (#2) on front of grate. See Figure 40. 2. Place Back Log (#1) on back of base lining up two (2) pins on base with holes in bottom of log. See Figures 41 and 42. 3. - Page 19 LOG PLACEMENT Locator Pins DUzY5 LOG VDY24/18D5 INSTALLATION SEQUENCE: 1. Place Back Log (#1) on back of base lining up two (2) pins on base with holes in bottom of log. See Figures 48 and 49. 2. Placed Bottom Right Log (#2) on right side of grate. See Figure 50.
- Page 20 LOG PLACEMENT DUzY5 LOG VDY24/18D5 INSTALLATION SEQUENCE (continued): 5. Place Middle Right Log (#5) on top of Bottom Right Log. See Figure 53. 6. Rest Top Right Log (#6) on Back Log and Bottom Right Log. See Figure 54. 7. Place Top Left Log (#7) on Bottom Left Log. See Figure 55.
- Page 21 LOG PLACEMENT VDY30D5 LOG INSTALLATION SEQUENCE: 1. Place Back Log (#1) on back of base lining up two (2) Locator pins on base with holes in bottom of log. See Figures Pins 57 and 58. 2. Place Bottom Right Log (#2) on right side of grate in front of back log.
- Page 22 LOG PLACEMENT VDY30D5 LOG INSTALLATION SEQUENCE (Continued) 5. Place Middle Right Log (#5) on top of bottom right log. See Figure 62. 6. Place Top Right Log (#6) on middle right log and back log. See Figure 63. 7. Place Top Left Log (#7) on bottom left log and middle left log. See Figure 64. 8.
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Page 23: Installation
Although MHSC goes to great lengths to design vented gas log sets that minimize sooting, all vented log sets will soot over time. Sooting normally appears as areas of a black powder-like substance on the logs. It is important to periodically clean and inspect the logs per the cleaning and servicing section of the manual. -
Page 24: Flame Appearance
FLAME APPEARANCE CHECkING BURNER FLAMES In normal operation at full rate after approximately 15 minutes, the following flame appearance should be ob- served. Rear flame should be yellow and extend vertically. Maximize spacing on top logs. Burner flame should become yellow as they contact embers on the face of the log. -
Page 25: Operating Instructions
OPERATING INSTRUCTIONS SAFETY INSTRUCTION FOR MANUAL AND MILLIVOLT CONTROL WITH PILOT FOR YOUR SAFETY READ BEFORE LIGHTING 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. -
Page 26: Millivolt Control Lighting Instructions
OPERATING INSTRUCTIONS MILLIVOLT CONTROL LIGHTING INSTRUCTIONS 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. -
Page 27: Optional Remote Receiver (Millivolt)
OPTIONAL REMOTE RECEIVER (MILLIVOLT) 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 7. • The fireplace has glass doors which when open reduces the opening width to 1 "... -
Page 28: Cleaning And Servicing
CLEANING AND SERVICING 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 irri- tation from ceramic fibers. If skin becomes irritated, wash gently with soap and water. See manual for correct log placement. -
Page 29: Illustrated Parts List
ILLUSTRATED PARTS LIST DUzY (II) LOGS SERIES DUzY (III) LOGS SERIES Item Description Qty. VDY24/18D2 VDY30D2 Item Description Qty. VDY24/18D3R VDY30D3R Rear Log 32D0400 32D0410 Rear Log 32D2118 32D2124 Right Log 32D0401 32D0411 Front Left Log 32D2117 32D2123 Left Log 32D0402 32D0412 Front Right Log... - Page 30 ILLUSTRATED PARTS LIST DUzY (IV) LOGS SERIES Item Description VDY24/18D4 VDY30D4 Back Log 32D3101 32D3111 Bottom Front Log 32D3102 32D3112 Top Left Log 32D3103 32D3113 Center Crossover Log 32D3104 32D3114 Left Top Crossover Log 32D3105 32D3115 Right Top Log 32D3106 32D3116 Small Front Log —...
- Page 31 ILLUSTRATED PARTS LIST DUzY (V) LOGS SERIES Item Description VDY24/18D5 Back Log 32D3121 Bottom Right Log 32D3122 Bottom Left Log 32D3123 Middle Left Log 32D3124 Middle Right Log 32D3125 Top Right Log 32D3126 Top Left Log 32D3127 Front Middle Log...
- Page 32 ILLUSTRATED PARTS LIST 24/18 Model Item Description VDY24/18 VDY24/18 VDY24/18 VDY24/18 Main Injector 32D0100 32D0118 32D0100 32D0507 Control Knob 27D0602 27D0602 18D0603 18D0603 Manual Control Valve 27D8951 27D8951 with Pilot Millivolt Control Valve 27D8006 27D8005 with Pilot Pilot 27D8972 27D8971 27D8974 27D8973 Thermocouple/...
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Page 33: Troubleshooting
TROUBLESHOOTING Turn appliance OFF and allow to cool before servicing. Only a qualified service person should service and repair the heater. Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY When ignitor button Ignitor electrode positioned 1 Replace ignitor. - Page 34 TROUBLESHOOTING OBSERVED PROBLEM POSSIBLE CAUSE REMEDY One or both burners do 1. Burner orifice is clogged or dam- 1. Clean burner or replace burner orifice. not light after pilot is lit. aged. 2. Replace burner orifice. 2. Burner is damaged. 3.
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Page 35: Massachusetts Requirements
Massachusetts Residents Only — Please read and follow these special requirements 2. Approved Carbon Monoxide Detectors. Each carbon NOTE REGARDING VENTED PRODUCTS monoxide detector as required in accordance with the above This product must be installed by a licensed plumber or gas fitter provisions shall comply with NFPA 720 and be ANSI/UL 2034 when installed within the Commonwealth of Massachusetts. -
Page 36: Warranty
MHSC in the appliance are found to be defective in materials or workmanship, MHSC will, at its option, replace or repair the defective components at no charge to the original owner. MHSC will also pay for reasonable labor costs incurred in replacing or repairing such components for a period of two years from the date of installation.