Unvented Gas Log Heater or Vented Decorative Appliance Installation and Operating Instructions 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.
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. Important Safety Information.......................................3 Getting Started.................................................
EYF Series Unvented Gas Log Set IMPORTANT SAFETY INFORMATION OWNER Please leave these instructions with the appliance. Please retain these instructions for future reference. WARNING INSTALLER • 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. • Do not allow fans to blow directly into the fireplace. Avoid any drafts that alter burner flame patterns.
IMPORTANT SAFETY INFORMATION EYF Series Unvented Gas Log Set 16. Keep room area clear and free from combustible materials, gasoline and other flammable vapors and liquids. 17. Unvented gas heaters are a supplemental zone heater. They are not intended to be a primary heating appliance. Water vapor produced by an unvented heater can create moisture problems in a home when operated for extended periods of time. 18.
WARNING GETTING STARTED - FEATURES and SPECIFICATIONS • Gloves are recommended when handling ceramic fiber logs to prevent skin irritation from loose fibers. • Logs are fragile - handle with care. Make sure you have received all parts: Check your packing list to verify that all listed parts have been received.
INSTALLATION INFORMATION EYF Series Unvented Gas Log Set ADEQUATE COMBUSTION AND VENTILATION AIR This heater shall not be installed in a confined space or 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.
EYF Series Unvented Gas Log Set WARNING FIREPLACE and HEARTH DIMENSIONS This appliance has been specifically tested and design certified for installation only in a solid-fuel burning fireplace including factory-built UL127 fireplaces and masonry fireplaces, or in a listed ventless firebox (see below). Exception: DO NOT install this appliance in a factory-built fireplace that includes instructions stating that it has not been tested or should not be used with unvented gas logs.
EYF Series Unvented Gas Log Set INSTALLATION WARNING CLEARANCE and HEIGHT REQUIREMENTS The dimensions shown in Figures 4 through 10 and defined in the fireplace manufacturer's instructions are minimum clearances to maintain when installing this heater. Left and right clearances are determined when facing the front of the heater. When heater is installed into a ventless firebox, minimum clearances, as specified by the ventless firebox manufacturer, must be met.
EYF Series Unvented Gas Log Set INSTALLATION Heat resistant material (minimum requirements) with wooden mantel or other combustible projection: To install the heater with a wooden mantel, shelf or other combustible projection above, first measure the heat resistant material shown in Figure 6, then refer to Table B.
INSTALLATION EYF Series Unvented Gas Log Set FLOOR CLEARANCE OR, The gas log heater may be installed nearer to the floor if a minimum of 14" of noncombustible material such as slate or marble is installed between the base of the fireplace and the combustible flooring. Figure 10 Heater in Fireplace or firebox 5” Min.
EYF Series Unvented Gas Log Set INSTALLATION A damper stop must be provided with the unit. Contact your dealer to obtain one. The damper stop must be installed as shown in Figure 11 to prevent full closure of the fireplace damper blade and provide a minimum 29 square inch flue opening. Damper Stop WARNING Damper stop installation: You must secure the gas log heater to the fireplace floor. If not, the entire unit may move when you adjust the controls.
WARNING EYF Series Unvented Gas Log Set GAS LINE CONNECTION Use new black iron or steel pipe. Internally tinned copper or copper tubing can be used per National Fuel Code, section 2.6.3, providing gas meets hydrogen sulfide limits, and where permitted by local codes. Gas piping system must be sized to provide minimum inlet pressure (Listed on Data Plate) at the maximum flow rate (BTU/Hr). Undue pressure loss will occur if the pipe is too small.
EYF Series Unvented Gas Log Set WARNING 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.
ELECTRICAL WIRING - MILLIVOLT EYF Series Unvented Gas Log Set Connecting optional Remote Receiver Follow instructions supplied with the remote 1. Connect the wires to the two .25" male connectors located on the left side of the valve when facing the unit. Page 19, Figure 16. Do not let wire touch grate or burner. 2. Stick velcro pads with self-adhesive backing to the right side of remote receiver and to the left side of the unit. Figure 17 3. Attach remote receiver with velcro pads.
WARNING 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, vermiculite or rock wool to the heater. Only use the logs supplied with the unit.
EYF Series Unvented Gas Log Set LOG PLACEMENT PLACE EYF18-R LOGS 1. Place Rear Log (#1) on rear support. Figure 19 2. Place Middle Log (#2) on middle support. Figure 20 3. Place Front Log (#3) in between burner and grate. Figure 21 4. Rest Top Log (#4) in front and middle log cutouts. Figure 22 NOTE: Logs #1, #2 and #3 have ridges on the bottom which secure the logs to burner frame. After installing each log, check to be sure it is stable.
EYF Series Unvented Gas Log Set LOG PLACEMENT 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. Place Top Right Log (#4) in bottom log cutouts. Figure 27 5. Rest Top Left Log (#5) in front and middle log cutouts. Figure 28 NOTE: Logs #1, #2 and #3 have ridges on the bottom which secure the logs to burner frame.
FLAME APPEARANCE EYF Series Unvented Gas Log Set Flames from the pilot, front and rear burner should be visually checked as soon as the heater is installed. In addition, periodically check the flames visually during operation. Check the pilot flame The pilot flame must always be present when the heater is in operation. It should just touch the top of the thermocouple tip for natural. Refer to Figures 29 & 30 for correct pilot flame.
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. Figure 31 Correct Burner Flame Appearance LO ON HI I G F N OF LG717 OPERATING INSTRUCTIONS LG717 EYF flame height Avoid any drafts that alter burner flame patterns.
OPERATING INSTRUCTIONS EYF Series Unvented Gas Log Set WARNING 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. B. BEFORE OPERATING smell all around the appliance area for gas.
OPERATING INSTRUCTIONS EYF Series Unvented Gas Log Set MANUAL control lighting instructions WARNING 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 Rotate lights the pilot. 4. Refer to Page 22, Figure 37 for the location of the piezo ignitor and control knob. Push in gas control knob slightly and turn control knob clockwise to the OFF position.
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 26. 4.
OPERATING INSTRUCTIONS and MAINTENANCE EYF Series Unvented Gas Log Set MATCH lighting instructions WARNING 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. 3.
TROUBLESHOOTING WARNING EYF Series Unvented Gas Log Set 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 not spark at ODS/pilot. Appliance produces unwanted odors. Appliance shuts off during use. NOTE: All troubleshooting items are listed in order of operation. Possible Cause 1. Ignitor electrode positioned wrong. 2. Ignitor electrode is broken. 3.
EYF Series Unvented Gas Log Set TROUBLESHOOTING Problem Possible Cause ODS/pilot lights, but flame goes out when control knob is released. Logs appear to smoke after initial operation. 1. Control knob not fully pressed in. 2. Control knob not pressed in long enough. 3. Manual shutoff valve not fully open. 4. Thermocouple connection loose at control valve. 5. Pilot flame not touching thermocouple, which allows thermocouple to cool, causing pilot flame to go out.
REPLACEMENT PARTS WARNING EYF Series Unvented Gas Log Set Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this appliance may result in property damage or personal injury. 1 6 4 9 10 3 7 - Millivolt 8 11 7 - Manual 2 Ref. Description 1. Burner 2. Piezo Ignitor Manual Control 3. Injector 4. ODS Pilot Assy. 5. Piezo Wire 6. Knob Control 7. Control Valve 8.
EYF Series Unvented Gas Log Set REPLACEMENT PARTS 1 3 7 2 2 5 6 4 EYF24-F Logs EYF18-R Logs 6 5 4 3 EYF24-R & EYF30-R Logs WARNING Ref. 1. 2. 3. 4. 5. 6. 7. Description Main Log Front Log Top Left Log Top Right Log Rear Log Middle Log Top Log 2 Qty.
EYF Series Unvented Gas Log Set 28 65D1009
EYF Series Unvented Gas Log Set 65D1009 29
Massachusetts EYF Series UnventedResidents Gas Log Set 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.
Gas Logs Limited Warranty What is covered and for How Long MHSC will make available replacement parts for parts that are defective according to the following terms. Logs - A free replacement will be made available at our factory for any logs if they fail due to deterioration within two (2) years of the verified purchase. Steel Burner - A free replacement will be made available at our factory for the burner if it fails to deterioration within 10 years of the verified purchase date.
MHSC 149 Cleveland Drive • Paris, Kentucky 40361 www.mhsc.
