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Vented Gas Log Set
Models: VWF18ST, VWF24ST
Installation & Operating Instructions
WARNINGS
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.
• Immediately call your gas supplier from
a neighbor's phone. Follow the gas
supplier's instructions.
• If you cannot reach your gas supplier,
call the fire department.
–
Installation and service must be performed
by a qualified installer, service agency or
the gas supplier.
This gas log set is to be installed only in a
solid-fuel burning fireplace with a working flue
constructed of noncombustible material.
Approved to ANSI Z21.60
8850
VWFST cover
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future refer-
ence.
27D8850 10/10 Rev. 4
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Related Manuals for MHSC VWF18ST
Summary of Contents for MHSC VWF18ST
- Page 1 Vented Gas Log Set Models: VWF18ST, VWF24ST Installation & Operating Instructions WARNINGS 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.
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Page 2: Table Of Contents
CONTENTS VWF18/24ST Vented Gas Log Set 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. -
Page 3: Important Safety Information
2. Installation and repair should be done by a qualified water. Immediately call a qualified service technician service person. MHSC Vented Gas Logs must be to inspect the gas logs and replace any part of the installed only in a masonry or a UL 127 solid-fuel... -
Page 4: Product Specifications
VWF24P 60,000 NOTE: Actual performance, flame height, BTU/Hr will vary with specific installation, gas pressure, shutoff valve position (fully open), valve type, and firebox draft conditions. Model VWF18ST 28" 28" 18" 16" (711 mm) (711 mm) (457 mm) (406 mm) -
Page 5: Getting Started
GETTING STARTED VWF18/24ST Vented Gas Log Set MINIMUM FREE OPENING AREA OF CHIM- MAkE SURE YOU HAVE RECEIVED ALL NEY DAMPER FOR VENTING PARTS Check your packing list to verify that all listed parts The fireplace and gas logs function as have been received. -
Page 6: Placement In A Fireplace With A Restrictive Barrier
PLACEMENT IN A FIREPLACE WITH A RESTRICTIVE BARRIER VWF18/24ST Vented Gas Log Set IMPORTANT INFORMATION FOR THE INSTALLATION OF THIS GAS LOG The following are guidelines for placing a VWFST log set in a fireplace that has a restrictive bar- rier along the bottom front opening of the fireplace. -
Page 7: Installation
INSTALLATION VWF18/24ST Vented Gas Log Set INSTALL AND OPERATE THE APPLIANCE BEFORE INSTALLING THE APPLIANCE AS DIRECTED IN THIS MANUAL • Turn off gas supply to fireplace or firebox. DAMPER STOP INSTALLATION • Clean the fireplace floor and chimney before installing the log set. -
Page 8: Install Valve Cover
INSTALLATION VWF18/24ST Vented Gas Log Set INSTALL VALVE COVER Covers must be installed prior to operation Grate bar must not touch the gas to prevent overheating. valve. Valve Cover FP291 Grate Bar Millivolt Gas Figure 5 - Valve Place Valve Cover on Millivolt Gas Valve FP2913 valve cover 27D8850... -
Page 9: Wiring - Millivolt
WIRING - MILLIVOLT VWF18/24ST Vented Gas Log Set Label all wires prior to disconnection when Do not connect to 110 Volt supply servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing THTP Millivolt Valve Pilot FP278 Figure 6 -... -
Page 10: Connecting The Gas
VWF18/24ST Vented Gas Log Set CONNECT THE GAS NOTICE: A qualified gas appliance installer Connecting directly to an unregulated must connect the appliance to the gas propane/LPG tank can cause an explo- supply. Consult all local codes before instal- sion. lation. -
Page 11: Log Placement
Sprinkle volcanic rock around burner. Bottom Left Front Log #1 Bottom Right Front Log #2 VWF18ST AND VWF24ST LOG PLACEMENT 1. Place bottom left front log (#1) and bottom right front log (#2) on front of grate. Figure 9 LG2914... - Page 12 LOG PLACEMENT VWF18/24ST Vented Gas Log Set Left/Right Curved Logs # 4. Place left/right curved log (#) on top of front and back bottom left logs. Figure 11 5. Place left/right curved log (#) on top of front and back bottom right logs. Figure 11 Left/Right Split Charred Logs Figure11...
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Page 13: Operating Instructions
OPERATING INSTRUCTIONS VWF18/24ST Vented Gas Log Set FOR YOUR SAFETY READ BEFORE LIGHTING A. 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: •... -
Page 14: Millivolt Control Lighting Instructions
OPERATING INSTRUCTIONS VWF18/24ST Vented Gas Log Set MILLIVOLT CONTROL LIGHTING INSTRUCTIONS The Millivolt control does not come preassembled with an on/off switch so that it may be customized for the specific application with a wall switch, remote, etc. A switch/remote must be connected to enable the burner to light. 1. -
Page 15: Flame Appearance
FLAME APPEARANCE VWF18/24ST Vented Gas Log Set CHECk BURNER FLAMES Flame should be yellow and extend vertically (not curling toward fireplace screen). Ember bed should have a yellow/orange glow Figure 14 - Flame Appearance LG1039 VWFST flame height PILOT FLAME APPEARANCE Thermocouple/ Thermopile Tip The pilot flame must always be present when appliance is... -
Page 16: Fireplace Draft Test
Turn off gas logs and allow to cool before because the fireplace and gas logs function as a system. cleaning. Disconnect electrical power if Although MHSC goes to great lengths to design vented applicable before cleaning or servicing. gas log sets that minimize sooting, all vented log sets will soot over time. -
Page 17: Replacement Parts Lists
REPLACEMENT PARTS VWF18/24ST Vented Gas Log Set 7,8,10 Naturel Propane Ref. Description VWFST18 VWFST24 VWFST18 VWFST24 Injector 27D7022 27D7022 27D0406 27D0406 Millivolt Control Valve 27D8006 27D8006 27D8005 27D8005 Switch 2D022 2D022 2D022 2D022 278850 Pilot 27D7027 27D7027 27D7027 27D7027 VWFST parts Burner Pan Assembly 27D5200 27D5201... - Page 18 VWF18/24ST Vented Gas Log Set REPLACEMENT PARTS 278850 VWFST log parts Ref. Description Qty. VWFST18 VWFST24 Bottom Left Front Log #1 27D7501 27D7507 Bottom Right Front Log #2 27D7502 27D7508 Left/Right Curved Log # 27D880 27D8589 Top Left/Right Split/Char Log 27D881 27D884 Curved Center Top Log #5...
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Page 19: Massachusetts Residents Only
Massachusetts Residents Only — Please read and follow these special requirements VWF18/24ST Vented Gas Log Set 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 204 when installed within the Commonwealth of Massachusetts. -
Page 20: Lifetime Warranty
After installation, if any of the components manufactured by 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. - Page 21 MHSC 149 Cleveland Drive • Paris, Kentucky 4061 www.mhsc.com...