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UNVENTED (VENT-FREE) GAS LOG HEATER
OWNER'S OPERATION AND INSTALLATION MANUAL
MODELS EZ18N, EZ18P, EZ24N AND EZ24P
18" and 24" Variable Manually-Controlled
Design-Certified As Vented Decorative Appliances
WARNING: 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 quali-
fied installer, service agency or the gas supplier.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
For more information, visit www.desatech.com
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Table of Contents
Troubleshooting
Related Manuals for Desa EZ18N
Summary of Contents for Desa EZ18N
- Page 1 UNVENTED (VENT-FREE) GAS LOG HEATER OWNER’S OPERATION AND INSTALLATION MANUAL MODELS EZ18N, EZ18P, EZ24N AND EZ24P 18" and 24" Variable Manually-Controlled Design-Certified As Vented Decorative Appliances WARNING: 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
TAbLE OF CONTENTS Safety ..............2 Cleaning ............20 Product Identification ........... 5 Specifications ............ 21 Local Codes............5 Troubleshooting ..........22 Unpacking............5 Parts ..............26 Product Features ..........5 Replacement Parts ..........29 Air For Combustion and Ventilation ..... 6 Service Hints ............. - Page 3 SAFETy Continued WARNING: This product WARNING: Do not use a contains and/or generates blower insert, heat exchanger chemicals known to the state insert or other accessory not ap- of California to cause cancer or proved for use with this heater. birth defects or other reproduc- tive harm.
- Page 4 SAFETy Continued 1. This appliance is only for use with the type 9. Before using furniture polish, wax, carpet of gas indicated on the rating plate. This cleaner or similar products, turn heater off. If appliance is not convertible for use with heated, the vapors from these products may other gases.
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Page 5: Product Identification
3. Check heater for any shipping damage. If information. heater is damaged call DESA Heating, LLC at 1-866-672-6040 for replacement parts 1. Remove logs and heater base assembly before returning to dealer. -
Page 6: Air For Combustion And Ventilation
AIR FOR COMbUSTION AND VENTILATION Unusually Tight Construction WARNING: This heater shall The air that leaks around doors and windows not be installed in a room or may provide enough fresh air for combustion space unless the required vol- and ventilation. However, in buildings of un- usually tight construction, you must provide ume of indoor combustion air additional fresh air. - Page 7 AIR FOR COMbUSTION AND VENTILATION Continued DETERMINING FRESH-AIR FLOW Example: 51,200 Btu/Hr (maximum the space can support) FOR HEATER LOCATION 73,000 Btu/Hr (actual amount of Determining if You Have a Confined or Btu/Hr used) Unconfined Space The space in the above example is a confined Use this work sheet to determine if you have space because the actual Btu/Hr used is more a confined or unconfined space.
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Page 8: Installation
AIR FOR COMbUSTION AND VENTILATION Continued ventilation Air From Outdoors to the outdoors. These spaces include attics Provide extra fresh air by using ventilation and crawl spaces. Follow the National Fuel grills or ducts. You must provide two perma- Gas Code, ANSI Z223.1/NFPA 54, Air for nent openings: one within 12"... - Page 9 INSTALLATION Continued INSTALLATION AND CLEARANCES WARNING: Never install the FOR VENT-FREE OPERATION heater WARNING: Maintain the • in a bedroom or bathroom minimum clearances. If you can, unless installed as a vented provide greater clearances from appliance, see page 12 floor, ceiling and adjoining wall.
- Page 10 INSTALLATION Continued Noncombustible NOTICE: Manual control heaters Material Distance Requirements for Safe may be used as a vented product. Installation If so, you must always run heater 12" or more Noncombustible mate- with chimney flue damper open. rial OK. If running heater with damper Between 8"...
- Page 11 INSTALLATION Continued Mantel Shelf NOTICE: Surface temperatures 12" 10" of adjacent walls and mantels Underside 8" of Mantel become hot during operation. Shelf 6" Walls and mantels above the 2½" Minimum firebox may become hot to Noncombustible Material the touch. If installed properly, 8"...
- Page 12 INSTALLATION Continued INSTALLING DAMPER CLAMP Damper Clamp ACCESSORY FOR vENTED Damper OPERATION Note: When used as a vented heater, ap- pliance must be installed only in a solid-fuel Damper Clamp burning fireplace with a working flue and con- structed of noncombustible material. If your heater is a manually-controlled model, Damper Damper...
- Page 13 INSTALLATION Continued Installation Items Needed CONNECTING TO GAS SUPPLY • hardware package (provided with heater) WARNING: This appliance • approved flexible gas hose and fittings (not requires a 1/2" NPT (National provided) (if allowed by local codes) Pipe Thread) inlet connection to •...
- Page 14 INSTALLATION Continued For propane/LP units, the installer must WARNING: Use pipe joint supply an external regulator. The external regulator will reduce incoming gas pressure. sealant that is resistant to liquid You must reduce incoming gas pressure to petroleum (LP) gas. between 11"...
- Page 15 INSTALLATION Continued CHECKING GAS CONNECTIONS Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa) WARNING: Test all gas piping 1. Close equipment shutoff valve (see Fig- ure 15). and connections, internal and 2. Pressurize supply piping system by either external to unit, for leaks after opening propane/LP supply tank valve installing or servicing.
- Page 16 INSTALLATION Continued PRESSURE TESTING HEATER GAS CONNECTIONS 1. Open equipment shutoff valve (see Figure Ember 15, page 15). 2. Open main gas valve located on or near gas meter for natural gas or open pro- pane/LP supply tank valve. 3. Make sure control knob of heater is in the Metal Stop OFF position.
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Page 17: Operation
INSTALLATION Continued 4. Place top right log onto pins of middle 5. Place top left log on middle log as shown log (see Figure 20). Bottom of top log will in Figure 20. rest on middle log as shown in Figures 6. - Page 18 OPERATION Continued LIGHTING 5. Press in control knob and turn counter- clockwise to the PILOT position. INSTRUCTIONS Keep control knob pressed in for five (5) seconds (see Figure 22). WARNING: Note: You may be running this heater for • If fireplace has glass doors, the first time after hooking up to gas sup- never operate this heater with ply.
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Page 19: Inspecting Burners
OPERATION Continued vARIABLE CONTROL TO TURN OFF GAS OPERATION TO APPLIANCE The variable control valve can be set to any Shutting Off Heater heat setting and flame height desired, by sim- 1. Press in and turn control knob clockwise ply turning the control knob until that setting to the HI position. -
Page 20: Cleaning
INSPECTING bURNERS Continued FRONT BURNER FLAME PATTERN If front burner flame pattern is incorrect, as shown in Figure 27 Figure 26 shows correct front burner flame • turn heater off (see To Turn Off Gas to Ap- pattern. Figure 27 shows incorrect front pliance, page 19) burner flame pattern. -
Page 21: Specifications
• Inlet Gas Pressure (in. of water): Maximum 14" W.C., Minimum 11" * W.C. Maximum 14" W.C., Minimum 11" * W.C. • Shipping Weight: 32 lbs. • Shipping Weight: 34 lbs. EZ18N EZ24N • Rating (Variable): 22,000/29,000 • Rating (Variable): 24,000/35,000 • Gas Type: Natural •... -
Page 22: Troubleshooting
TROUbLESHOOTING WARNING: Turn off heater and let cool before servicing. Only a qualified service person should service and repair heater. CAUTION: Never use a wire, needle or similar object to clean ODS/pilot. This can damage ODS/pilot unit. Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY... -
Page 23: Troubleshooting
TROUbLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY ODS/pilot lights but flame 1. Control knob not fully 1. Press in control knob fully goes out when control knob pressed in is released 2. Control knob not pressed in 2. After ODS/pilot lights, keep long enough control knob pressed in 30 seconds... - Page 24 TROUbLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Slight smoke or odor during 1. Residues from manufac- 1. Problem will stop after a few initial operation turing processes and logs hours of operation curing Heater produces a whistling 1. Turning control knob to HI 1.
- Page 25 TROUbLESHOOTING Continued WARNING: If you smell gas • Shut off gas supply. • 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. Fol- low the gas supplier’s instructions.
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Page 26: Parts
PARTS MODELS EZ18N, EZ18P, EZ24N AND EZ24P www.desatech.com 119678-01C... - Page 27 PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 29 of this manual. NO. PART NO. DESCRIPTION QTY. Ramp Burner Assembly • • • • 123651-01 Electronic Ignitor •...
- Page 28 PARTS This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 29 of this manual. NO. PART NO. DESCRIPTION 114984-01 Middle Log • • 114984-12 Middle Log • • 114984-02 Left Top Log •...
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Page 29: Replacement Parts
• propane/LP gas supply may be low TECHNICAL SERVICE You may have further questions about installa- You can also visit DESA Heating, LLC’s web tion, operation, or troubleshooting. If so, con- site at www.desatech.com. tact DESA Heating, LLC at 1-866-672-6040. -
Page 30: Accessories
FB32C (CIRCULATING), FB32NC Purchase these accessories from your local dealer. If they can not supply these accessories (NON-CIRCULATING) SERIES call DESA Heating, LLC at 1-866-672-6040 for FIREBOxES information. You can also write to the address For 18" and 24" log models. - Page 31 NOTES __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ 119678-01C www.desatech.com...
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Page 32: Warranty
This is DESA Heating, LLC’s exclusive warranty, and to the full extent allowed by law; this express warranty excludes any and all other warranties, express or implied, written or verbal and limits the duration of any and all implied warranties, including warranties of merchantability and fitness for a particular purpose to four (4) years on new products and 30 days on factory reconditioned products from the date of first purchase.