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OPERATING HEATER (MANUALLY-CONTROLLED MODELS) 15 Lighting Instructions (Cont.) 15 Variable Control Operation OPERATING HEATER Continued Control Cover Log Note: Home owners generally prefer to operate their heater with the chimney damper closed. This will put all the heat into Control Knob the room. However, there may be times you will desire the full flames of the HI heat setting but will find the heat output excessive. You can open the chimney damper (if you have one) fully or partially to rele
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OPERATING HEATER (MANUALLY-CONTROLLED MODELS) To Turn Off Gas to Appliance 16 Manual Lighting Procedure OPERATING HEATER (THERMOSTAT MODELS) For Your Safety Read Before Lighting Lighting Instructions OPERATING HEATER Continued WHAT TO DO IF YOU SMELL GAS TO TURN OFF GAS • Do not try to light any appliance. TO APPLIANCE • Do not touch any electric switch; do not use any phone in your building. Shutting Off Heater • Immediately call your gas supplier from a neighbor’s 1. Remove control cover log (
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LO Pilot OPERATING HEATER (THERMOSTAT MODELS) 17 Lighting Instructions (Cont.) 17 To Turn Off Gas To Appliance Thermostat Control Operation Manual Lighting Procedure OPERATING HEATER Continued Ignitor Electrode 1. STOP! Read the safety information in column 2, page 16. Thermocouple Pilot Burner 2. Make sure equipment shutoff valve is fully open. Clockwise 3. Turn control knob clockwise to the OFF position. 4. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the fl
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INSPECTING BURNERS 18 Pilot Flame Pattern Burner Primary Air Holes Main Burner CLEANING AND MAINTENANCE Cleaning Burner Injector Holder and Pilot Air Inlet Hole INSPECTING BURNERS CLEANING AND Check pilot flame pattern and burner flame patterns often. MAINTENANCE PILOT FLAME PATTERN WARNING: Turn off heater and let cool before Figure 27 shows a correct pilot flame pattern. Figure 28 shows an cleaning. incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. Thi
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CLEANING AND MAINTENANCE 19 Cleaning Burner Injector Holder and Pilot Air Inlet Hole (Cont.) 19 Logs SPECIFICATIONS CLEANING AND SPECIFICATIONS Echo Valley Oak Log MAINTENANCE Variable Manually-Controlled Continued Btu (Variable) 16,000/31,500 Clean the pilot assembly also. A yellow tip on the pilot flame Type Gas Propane/LP - Natural indicates dust and dirt in the pilot assembly. There is a small pilot Ignition Piezo air inlet hole about two inches from where the pilot flame comes out Manifold
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TROUBLESHOOTING 20 TROUBLESHOOTING Note: For additional help, visit DESA CAUTION: Never use a wire, WARNING: Turn off heater Heating Products’ technical service web needle, or similar object to clean and let cool before servicing. Only site at www.desatech.com. ODS/pilot. This can damage ODS/ a qualified service person should pilot unit. service and repair heater. Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY When ignitor button is pre
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UNVENTED (VENT-FREE)
GAS LOG HEATER
OWNER’S OPERATION AND
INSTALLATION MANUAL
For more information, visit www.desatech.com
For more information, visit www.desatech.com
Variable Manually-Controlled Models Also Design-Certified As Vented Decorative Appliances
Echo Valley Oak Log Design Meadowbrook Oak Log Design
24" Variable Thermostatically-Controlled Models
24" Variable Manually-Controlled Models
CDL3924NT and CDL3924PT
LSL3124N and LSL3124P
WARNING: Improper installation, adjust-
WARNING: If th
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TABLE OF CONTENTS 2 SAFETY INFORMATION TABLE OF CONTENTS SAFETY INFORMATION ...................................................................2 SPECIFICATIONS ...........................................................................19 LOCAL CODES ..................................................................................3 TROUBLESHOOTING .....................................................................20 UNPACKING ....................................................................
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SAFETY INFORMATION 3 LOCAL CODES 3 UNPACKING SAFETY INFORMATION Continued 1. This appliance is only for use with the type of gas indicated on 15. Turn heater off and let cool before servicing, installing, or re- the rating plate. This appliance is not convertible for use with pairing. Only a qualified service person should install, service, other gases. or repair heater. 2. Do not place propane/LP supply tank(s) inside any structure. Lo- 16. Operating heater above elevations of 4,500 feet may ca
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PRODUCT IDENTIFICATION 4 PRODUCT FEATURES AIR FOR COMBUSTION AND VENTILATION PRODUCT IDENTIFICATION PRODUCT FEATURES OPERATION This heater is clean burning. It requires no outside venting. There is no heat loss out a vent or up a chimney. Heat is generated by realistic flames. This heater is designed for vent-free operation with flue damper closed. It has been tested and approved to ANSI Z21.11.2 standard for unvented heaters. State and local codes in some areas prohibit the use of vent-free hea
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AIR FOR COMBUSTION AND VENTILATION 5 Providing Adequate Ventilation 5 Determining Fresh-Air Flow for Heater Location AIR FOR COMBUSTION AND VENTILATION Continued PROVIDING ADEQUATE VENTILATION DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION The following are excerpts from National Fuel Gas Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation. Determining if You Have a Confined or All spaces in homes fall into one of the three following ventilation Unconfined Space classifica
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AIR FOR COMBUSTION AND VENTILATION Determining Fresh-Air Flow for Heater Location (Cont.) 6 Ventilation Air AIR FOR COMBUSTION AND VENTILATION Continued The space in the above example is a confined space because the actual Btu/ Hr used is more than the maximum Btu/Hr the space can support. You must 12" provide additional fresh air. Your options are as follows: A. Rework worksheet, adding the space of an adjoining room. If the extra space provides an unconfined space, remove door to adjoining Ven
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INSTALLATION 7 Check Gas Type 7 Installation and Clearances for Vent-Free Operation INSTALLATION NOTICE: This heater is intended for use as supple- CAUTION: This heater creates warm air currents. mental heat. Use this heater along with your primary These currents move heat to wall surfaces next to heating system. Do not install this heater as your heater. Installing heater next to vinyl or cloth wall primary heat source. If you have a central heating coverings or operating heater where impuriti
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INSTALLATION Installation and Clearances for Vent-Free Operation (Cont.) 8 INSTALLATION Continued Carefully follow the instructions below. This will ensure safe noncombustible material behind it. Noncombustible material must installation into a masonry, UL127-listed manufactured fireplace, extend at least 8" up (for all models). If noncombustible material is or listed vent-free firebox. less than 12", you must install the fireplace hood accessory. See Figure 5 for minimum clearances. Minimum Cle
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INSTALLATION 9 Mantel Clearances 9 Floor Clearances INSTALLATION Continued Mantel Shelf MANTEL CLEARANCES 12" Underside of 10" Mantel Shelf In addition to meeting noncombustible material clearances, you must 8" also meet required clearances between fireplace opening and mantel 6" shelf. If you do not meet the clearances listed below, you will need a hood. 1 2 /2" All minimum distances are Determining Minimum Mantel Clearance in inches Minimum Non- Combustible If you meet minimum clearance betw
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INSTALLATION Installing Damper Clamp Accessory for Vented Operation 10 Installing Heater Base Assembly INSTALLATION Continued INSTALLING DAMPER CLAMP ACCESSORY INSTALLING HEATER BASE ASSEMBLY FOR VENTED OPERATION WARNING: You must secure this heater to fire- Note: When used as a vented heater, appliance must be installed place floor. If not, heater will move when you adjust only in a solid-fuel burning fireplace with a working flue and controls. Moving heater may cause a gas leak or log constru
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INSTALLATION 11 Installing Heater Base Assembly (Cont.) 11 Connecting To Gas Supply INSTALLATION Continued 5. Center heater base and logs front-to-back and side-to-side the optional CSA design-certified equipment shutoff valve from in fireplace. your dealer. See Accessories, page 28. 6. Carefully remove logs without moving heater base. For propane/LP units, the installer must supply an external regula- 7. Mark screw locations through one hole on each side of the tor. The external regulator will
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INSTALLATION Connecting to Gas Supply (Cont.) 12 Checking Gas Connections INSTALLATION Continued 3. Pressurize supply piping system by either opening CAUTION: Avoid damage to regulator. Hold gas propane/LP supply tank valve for propane/LP gas or opening regulator with wrench when connecting it to gas main gas valve located on or near gas meter for natural gas, or piping and/or fittings. using compressed air. 4. Check all joints of gas supply piping system. Apply noncorrosive PROPANE/LP CSA Desi
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INSTALLATION 13 Checking Gas Connections (Cont.) 13 Installing Logs INSTALLATION Continued Equipment Shutoff Valve It is very important to install the logs exactly as instructed. Do not modify logs. Only use logs supplied with heater. Gas Control Propane/LP Valve Location Supply Tank Variable Manually-Controlled Models (LSL) 1. Place rear log onto rear brackets making sure brackets fit into recess on bottom of log (see Figure 18). 2. Place left front log on grate fingers as shown in Figure 19.
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INSTALLATION Installing Logs (Cont.) 14 OPERATING HEATER (MANUALLY-CONTROLLED MODELS) For Your Safety Read Before Lighting Lighting Instructions INSTALLATION OPERATING HEATER Continued MANUALLY-CONTROLLED MODELS Thermostat Models (CDL) 1. Place rear log on 2 pins on rear brackets (see Figure 21). FOR YOUR SAFETY 2. Place front log on grate fingers and over pins of rear log as READ BEFORE LIGHTING shown in see Figure 21. 3. Place control cover log onto two pins on front log assuring the WARNING:
