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Unvented Gas Log Heater
or
Vented Decorative Appliance
Models: EYF18, EYF24
Natural Gas or Propane/LPG
Control Type: Manual or Millivolt
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.
Monessen • EYF18/24 Gas Log Heater Installation/Owner's Manual • 65D1009 • Rev G • 01/2020
Installation and
Operating Instructions
651009
EYF cover
This is an unvented gas-fired heater. It uses
air (oxygen) from the room in which it is
installed. Provisions for adequate combustion
and ventilation air must be provided.
Refer to Page 5.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
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Summary of Contents for Monessen Hearth EYF18-R
- Page 1 Unvented Gas Log Heater Vented Decorative Appliance Models: EYF18, EYF24 Natural Gas or Propane/LPG Control Type: Manual or Millivolt 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.
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Page 2: Table Of Contents
CONTENTS EYF Series Unvented Gas Log Set Thank you and congratulations on your purchase of a Gas 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
IMPORTANT SAFETY INFORMATION EYF Series Unvented Gas Log Set INSTALLER OWNER Please leave these instructions with the appliance. Please retain these instructions for future reference. • Any change to this heater or its controls can be dangerous. • Improper installation or use of the heater can cause serious injury or death from fire, burns, explosion or carbon monoxide poisoning. - Page 4 IMPORTANT SAFETY INFORMATION EYF Series Unvented Gas Log Set as they are burned off during the initial operation of the This appliance may be installed in an after- appliance; possibly causing headaches or eye or lung irritation. This is a normal and temporary occurrence. market, permanently located, manufactured (mobile) home, where not prohibited by local The initial break-in operation should last two to three...
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Page 5: Getting Started
GETTING STARTED - FEATURES and SPECIFICATIONS EYF Series Unvented Gas Log Set GAS PRESSURES • Gloves are recommended when Control Fuel Manual Millivolt handling ceramic fiber logs to prevent Regulator Pressure Nat. 4.0” w.c. 3.5” w.c. skin irritation from loose fibers. Pilot Regulator Nat. -
Page 6: Fireplace And Hearth Dimensions
FIREPLACE and HEARTH DIMENSIONS EYF Series Unvented Gas Log Set This appliance has been specifically tested Barriers such as the bottom of a glass door and design certified for installation only frame placed in front of a gas log set can in a solid-fuel burning fireplace including change the air flow characteristics of the factory-built UL127 fireplaces and masonry... -
Page 7: Adequate Combustion Ventilation Air
EYF Series Unvented Gas Log Set ADEQUATE COMBUSTION VENTILATION Counter This heater shall not be installed in a confined space or Fireplace unusually tight construction unless provisions are provided for adequate combustion and ventilation air. The National Fuel Gas Code, (ANSI Z223.1/NFPA54), defines a confined space as a space whose volume is less than 50 cubic feet per 1,000 BTU per hour (4.8m per kw) -
Page 8: Clearances And Height Requirements
INSTALLATION EYF Series Unvented Gas Log Set CLEARANCE and HEIGHT REQUIREMENTS Heat resistant material (minimum requirements) with no wooden mantel or other combustible projection: The dimensions shown in Figures 4 through 10 and defined in the fireplace To install the gas logs into a fireplace with no wooden manufacturer's instructions are minimum mantel, shelf or other combustible projection above the fireplace opening, measure the heat resistant material... - Page 9 EYF Series Unvented Gas Log Set INSTALLATION 12" Heat resistant material (minimum requirements) with 10" wooden mantel or other combustible projection: To 8" install the heater with a wooden mantel, shelf or other 6" combustible projection above, first measure the heat Heat resistant material shown in Figure 6, then refer to Table B.
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Page 10: Floor Clearance
EYF Series Unvented Gas Log Set INSTALLATION FLOOR CLEARANCE FIREPLACE PREPARATION The gas log heater must be installed at least 5" above any Before installing in a solid fuel burning combustible flooring material, such as carpeting or tile, fireplace, The chimney flue and firebox must which is closer than 14"... - Page 11 EYF Series Unvented Gas Log Set INSTALLATION PLACE and SECURE APPLIANCE • Seal any fresh air vents or ash clean-out doors located on floor or wall of fireplace. If not, drafting may cause ASSEMBLY PROCEDURE: pilot outage or sooting. Use a heat-resistant sealant. Figure 12 Do not seal chimney flue damper.
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Page 12: Gas Line Connection
EYF Series Unvented Gas Log Set GAS LINE CONNECTION Use new black iron or steel pipe. Internally Connecting directly to an unregulated tinned copper or copper tubing can be propane/LPG tank can cause an explo- used per National Fuel Code, section 2.6.3, sion. -
Page 13: Electrical Wiring (Millivolt)
EYF Series Unvented Gas Log Set 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. ODS Pilot On/Off Switch ODS Pilot Wall Switch Millivolt Valve On/Off Switch... -
Page 14: Connect Optional Remote Receiver
ELECTRICAL WIRING - MILLIVOLT EYF Series Unvented Gas Log Set CONNECTING OPTIONAL REMOTE RE- CHECKING SYSTEM OPERATION CEIVER The millivolt system and individual components may be checked with a millivolt meter having a 1-1000 mV range. FOLLOW INSTRUCTIONS SUPPLIED WITH Conduct each check shown in chart by connecting meter THE REMOTE test leads to terminals as indicated. -
Page 15: Log Placement
LOG PLACEMENT EYF Series Unvented Gas Log Set The positioning of the logs is critical to the safe and clean operation of this heater. Sooting and other problems may result if the logs are not properly and firmly positioned in the appliance. Never add additional logs or embellishments such as pine cones, Top Left Log vermiculite or rock wool to the heater. - Page 16 EYF18 top log LG708 Figure 20 - Place Middle Log LG711 Figure 23 - EYF18-R Logs Set Complete LG708 Monessen • EYF18/24 Gas Log Heater Installation/Owner's Manual • 65D1009 • Rev G • 01/2020 EYF18 Mid log LG711 EYF18 logs...
- Page 17 LOG PLACEMENT EYF Series Unvented Gas Log Set PLACE EYF24-R and EYF30-R LOG SETS Front Log #3 1. Place Rear Log (#1) on rear support. Figure 24 2. Place Middle Log (#2) on middle support. Figure 25 3. Place Front Log (#3) in between burner and grate. Figure 26 4.
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Page 18: Flame Appearance
FLAME APPEARANCE EYF Series Unvented Gas Log Set CHECK THE PILOT FLAME Flames from the pilot, front and rear burner should be The pilot flame must always be present when the visually checked as soon as the heater is installed. heater is in operation. -
Page 19: Burner Flame Appearance
FLAME APPEARANCE EYF Series Unvented Gas Log Set In normal operation at full rate after 15 minutes, the following flame appearances should be observed: The left and right flames should be yellow and extend 1" to 2" above the log top surfaces. The yellow flames should not contact the logs. -
Page 20: For Your Safety Read Before Lighting
OPERATING INSTRUCTIONS EYF Series Unvented Gas Log Set FOR YOUR SAFETY, READ BEFORE LIGHTING If you do not follow these instruction exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance is equipped with an ignition device which automatically lights the pilot. Do not try to light the pilot by hand. -
Page 21: Manual Control Lighting Instructions
OPERATING INSTRUCTIONS EYF Series Unvented Gas Log Set MANUAL CONTROL LIGHTING INSTRUCTIONS 1. STOP! Read the safety information. 2. Make sure the manual shutoff valve is fully open. 3. This heater is equipped with an ignition device (piezo) which automatically lights the pilot. -
Page 22: Millivolt Control Lighting Instructions
EYF Series Unvented Gas Log Set 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, refer to instructions for Match Lighting Instructions, Page 23. -
Page 23: Match Lighting Instructions
EYF Series Unvented Gas Log Set OPERATING INSTRUCTIONS and MAINTENANCE MATCH LIGHTING INSTRUCTIONS 1. Remove any items necessary for easy access to the pilot (for example: logs, screens, etc.). 2. Follow appropriate lighting instructions found previously. Instead of pushing and releasing the piezo button, light a match and hold the flame to the end of the pilot and ignite the pilot. -
Page 24: Troubleshooting
TROUBLESHOOTING EYF Series Unvented Gas Log Set Turn off appliance and allow to cool before NOTE: All troubleshooting items are listed in order of operation. cleaning. Only a qualified service person should service and repair the heater. Problem Possible Cause Solution When ignitor button is 1. - Page 25 TROUBLESHOOTING EYF Series Unvented Gas Log Set Problem Possible Cause Solution 1. Press in control knob fully. ODS/pilot lights, but flame 1. Control knob not fully pressed in. goes out when control 2. After ODS/pilot lights, keep control knob 2. Control knob not pressed in long knob is released.
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Page 26: Service Parts
SERVICE PARTS EYF Series Unvented Gas Log Set EYF18 Service Parts Beginning Manufacturing Date: NA 18” Hearth Kit Ending Manufacturing Date: Active EYF18NM (Natural Gas Manual Control) EYF18PM (Propane Manual Control) EYF18NV (Natural Gas Millivolt Control) EYF18PV (Propane Millivolt Control) Part number list on following page. - Page 27 SERVICE PARTS EYF Series Unvented Gas Log Set EYF18 Service Parts Beginning Manufacturing Date: NA Ending Manufacturing Date: Active IMPORTANT: THIS IS DATED INFORMATION . Parts must be ordered from a dealer or Stocked Hearth and Home Technologies does not sell directly to consumers distributor.
- Page 28 Depot ITEM DESCRIPTION COMMENTS PART NUMBER Log Assembly EYF18-R 18” Mountain Oak (Required to complete burner assembly, Sold seperately) 13.1 Front Log 65D1038K 13.2 Rear Log 65D1036K 13.3...
- Page 29 SERVICE PARTS EYF Series Unvented Gas Log Set EYF24 Service Parts Beginning Manufacturing Date: NA 24” Hearth Kit Ending Manufacturing Date: Active EYF24PM (Propane Manual Control) EYF24NM (Natural Gas Manual Control) EYF24PV (Propane Millivolt Control) EYF24NV (Natural Gas Millivolt Control) Part number list on following page.
- Page 30 EYF Series Unvented Gas Log Set SERVICE PARTS EYF24 ► Service Parts Beginning Manufacturing Date: NA Ending Manufacturing Date: Active IMPORTANT: THIS IS DATED INFORMATION . Parts must be ordered from a dealer or Stocked Hearth and Home Technologies does not sell directly to consumers distributor.
- Page 31 SERVICE PARTS EYF Series Unvented Gas Log Set EYF24 Service Parts Beginning Manufacturing Date: NA Ending Manufacturing Date: Active IMPORTANT: THIS IS DATED INFORMATION. Parts must be ordered from a dealer or distributor. Hearth and Stocked Home Technologies does not sell directly to consumers. Provide model number and serial number when requesting service parts from your dealer or distributor.
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Page 32: Massachusetts Only
Massachusetts Residents Only — Please read and follow these special requirements EYF Series Unvented 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 2034 when installed within the Commonwealth of Massachusetts. -
Page 33: Warranty
EYF Series Unvented Gas Log Set ► Hearth & Home Technologies LIMITED LIFETIME WARRANTY Hearth & Home Technologies, on behalf of its hearth brands (“HHT”), extends the following warranty for HHT gas, wood, pellet and electric hearth appliances that are purchased from an HHT authorized dealer. WARRANTY COVERAGE: HHT warrants to the original owner of the HHT appliance at the site of installa on, and to any transferee taking ownership of the appliance at the site of installa on within two years following the date of original purchase, that the HHT appliance will be free from... - Page 34 EYF Series Unvented Gas Log Set WARRANTY CONDITIONS: • This warranty only covers HHT appliances that are purchased through an HHT authorized dealer or distributor. A list of HHT authorized dealers is available on the HHT branded websites. • This warranty is only valid while the HHT appliance remains at the site of original installa� on. •...
- Page 35 EYF Series Unvented Gas Log Set Monessen, a brand of Hearth & Home Technologies 7571 215th Street West, Lakeville, MN 50044 www.monessenhearth.com Monessen • EYF18/24 Gas Log Heater Installation/Owner's Manual • 65D1009 • Rev G • 01/2020...
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