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UNVENTED (VENT-FREE) GAS LOG HEATER
OWNER'S OPERATION AND INSTALLATION MANUAL
18", 24" AND 30" REMOTE-READy MODELS
EZ18NR/PR, EZ24NR/PR AND EZ30NR/PR
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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Related Manuals for Desa EZ18NR
Summary of Contents for Desa EZ18NR
- Page 1 UNVENTED (VENT-FREE) GAS LOG HEATER OWNER’S OPERATION AND INSTALLATION MANUAL 18", 24" AND 30" REMOTE-READy MODELS EZ18NR/PR, EZ24NR/PR AND EZ30NR/PR 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 and Maintenance ........ 24 Product Identification ........... 5 Troubleshooting ..........25 Optional Remote Control Accessories ....5 Specifications ............ 29 Local Codes............5 Wiring Diagram ..........29 Unpacking............5 Parts ..............30 Air For Combustion and Ventilation ..... 6 Replacement Parts .......... - 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 8. To prevent the creation of soot, follow the Keep the appliance area clear instructions in Cleaning and Maintenance, and free from combustible ma- page 24. terials, gasoline and other flam- 9. Before using furniture polish, wax, carpet mable vapors and liquids.
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Page 5: Product Identification
3. Check heater for any shipping damage. If heater is damaged call DESA Heating, LLC 1. Remove logs and heater base assembly at 1-866-672-6040 for replacement parts from carton. Note: Do not pick up heater before returning to dealer. -
Page 6: Air For Combustion And Ventilation
PRODUCT FEATURES OPERATION SAFETY DEVICE This heater is clean burning. It requires no This heater has a pilot with an Oxygen Deple- outside venting. There is no heat loss out a tion Sensing (ODS) safety shutoff system. The vent or up a chimney. Heat is generated by ODS/pilot is a required feature for vent-free both realistic flames and glowing coals. - Page 7 AIR FOR COMbUSTION AND VENTILATION Continued Confined and Unconfined Space Vent-free fireplace ___________ Btu/Hr The National Fuel Gas Code, ANSI Z223.1/ Gas water heater* ___________ Btu/Hr NFPA 54 defines a confined space as a space Gas furnace ___________ Btu/Hr whose volume is less than 50 cubic feet per Vented gas heater ___________ Btu/Hr 1,000 Btu/hr (4.8 m...
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Page 8: Installation
AIR FOR COMbUSTION AND VENTILATION Continued ceiling and one within 12" of the floor on the WARNING: If the area in which wall connecting the two spaces (see options the heater may be operated does 1 and 2, Figure 2). You can also remove door not meet the required volume for into adjoining room (see option 3, Figure 2). - Page 9 INSTALLATION Continued IMPORTANT: Vent-free heaters add moisture WARNING: Before installing in to the air. Although this is beneficial, installing a solid fuel burning fireplace, the heater in rooms without enough ventilation air may cause mildew to form from too much chimney flue and firebox must be moisture.
- Page 10 INSTALLATION Continued Carefully follow the instructions below. This Minimum Noncombustible Material will ensure safe installation into a masonry, Clearances UL127-listed manufactured fireplace or listed If Not Using Mantel vent-free firebox. Note: If using a mantel proceed to If Using Minimum Clearances For Side Mantel, page 11.
- Page 11 INSTALLATION Continued If Using Mantel IMPORTANT: If you cannot meet these mini- You must have noncombustible material(s) mum clearances, you must operate heater above the fireplace opening. Noncombustible with chimney flue damper open. Go to Install- materials (such as slate, marble, tile, etc.) ing Damper Clamp Accessory for Vented must be at least 1/2"...
- Page 12 INSTALLATION Continued FLOOR CLEARANCES If your heater is a manually-controlled model, you may use this heater as a vented product. A. If installing appliance on the floor level, There are three reasons for operating your you must maintain the minimum distance heater in the vented mode.
- Page 13 INSTALLATION Continued INSTALLING HEATER BASE 1. Apply pipe joint sealant lightly to male threads of gas fitting (not provided). Con- ASSEMBLY nect approved flexible gas hose to inlet side of gas control (see Figure 11). WARNING: You must secure 2. Position heater base assembly in fire- this heater to fireplace floor.
- Page 14 INSTALLATION Continued CONNECTING TO GAS SUPPLY For propane/LP units, the installer must supply an external regulator. The external WARNING: This appliance regulator will reduce incoming gas pressure. You must reduce incoming gas pressure to requires a 1/2" NPT (National between 11" and 14" of water. If you do not re- Pipe Thread) inlet connection to duce incoming gas pressure, heater regulator the pressure regulator.
- Page 15 INSTALLATION Continued CHECKING GAS CONNECTIONS WARNING: Use pipe joint WARNING: Test all gas piping sealant that is resistant to liquid and connections, internal and petroleum (LP) gas. external to unit, for leaks after We recommend that you install a sediment installing or servicing.
- Page 16 INSTALLATION Continued Test Pressures Equal To or Less Than PRESSURE TESTING HEATER GAS 1/2 PSIG (3.5 kPa) CONNECTIONS 1. Close equipment shutoff valve (see Fig- 1. Open equipment shutoff valve (see Fig- ure 15). ure 15). 2. Pressurize supply piping system by either 2.
- Page 17 INSTALLATION Continued 6. Install receiver bracket to base with phil- 11. If logs were removed from heater for in- lips screws provided in hardware kit as stall remote accessory, replace logs (see shown in Figure 18. Installing Logs, page 18). 7.
- Page 18 INSTALLATION Continued INSTALLING LOGS 2. Rest rear log in back corner sections of base assembly as shown in Figure 24. WARNING: Failure to position Make sure log is completely vertical and not leaning in toward burner where the the parts in accordance with these flame will touch the log.
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Page 19: Operation
OPERATION FOR YOUR SAFETY READ LIGHTING BEFORE LIGHTING INSTRUCTIONS WARNING: If you do not fol- WARNING: low these instructions exactly, • If fireplace has glass doors, a fire or explosion may result never operate this heater with causing property damage, per- glass doors closed. - Page 20 OPERATION Continued • If control knob does not pop out when 4. Press in and turn control knob clock- released, contact a qualified service wise to the OFF position (see person or gas supplier for repairs. Figure 27). Note: If pilot goes out, repeat steps 4 WARNING: Burners will through 8.
- Page 21 OPERATION Continued TO TURN OFF GAS IMPORTANT: Do not leave the selector switch TO APPLIANCE in the REMOTE or ON position when the pilot is not lit. This will drain the battery. 1. Turn control knob clockwise to the OFF position. ON/OFF SERIES (MODEL HRC100) 2a.
- Page 22 OPERATION Continued Digital Display Shows Note: Do not hold the hand-held remote for Locks Temperature and Settings a long time. Body temperature will affect its System to operation in the AUTO mode. Prevent Turns Accidental Hand-Held Safety Features Ignition Remote On AUTO When away from home for an extended period ROOM...
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Page 23: Inspecting Burners
INSPECTING bURNERS Check pilot flame pattern and burner flame FRONT BURNER FLAME PATTERN patterns often. Figure 35 shows correct front burner flame pattern. Figure 36 shows incorrect front PILOT FLAME PATTERN burner flame pattern. The incorrect burner Figure 33 shows a correct pilot flame pattern. flame pattern shows yellow tipping at top of Figure 34 shows an incorrect pilot flame pat- blue flame. -
Page 24: Cleaning And Maintenance
CLEANING AND MAINTENANCE 5. Blow air into the primary air holes on the WARNING: Turn off heater injector holder. and let cool before cleaning. 6. In case any large clumps of dust have now been pushed into the burner repeat steps 3 and 4. -
Page 25: 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 26 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 27 TROUbLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Yellow flame in front burner 1. Not enough air 1. Check burner(s) for dirt during burner combustion and debris. If found, clean burner(s) (see Cleaning and Maintenance, page 24) 2. Gas regulator defective 2.
- Page 28 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 29: Specifications
SPECIFICATIONS EZ18NR EZ24PR, EZ30PR • Rating (Variable): 19,000/30,000 Btu/hr • Rating (Variable): 25,000/36,000Btu/hr • Gas Type: Propane/LP • Gas Type: Propane/LP • Ignition: Electronic • Ignition: Electronic • Manifold Pressure: 7.9" W.C. • Manifold Pressure: 7.9" W.C. • Inlet Gas Pressure (in. of water): •... -
Page 30: Parts
PARTS MODELS EZ18NR, EZ18PR, EZ24NR, EZ24PR, EZ30NR AND EZ30PR www.desatech.com 114668-01F... -
Page 31: Parts List
PARTS LIST REMOTE-READY VARIABLE CONTROL MODELS This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 33 of this manual. NO. PART NO. DESCRIPTION Ramp Burner Assembly • • •... - Page 32 PARTS LOG MODELS This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 33 of this manual. NO. PART NO. DESCRIPTION 114984-01 Middle Log • • 114984-08 Middle Log •...
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Page 33: 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 34: Accessories
Purchase these accessories from your local dealer. If they can not supply these accessories SWITCH - GWMT1 call DESA Heating, LLC at 1-866-672-6040 for For all Remote-Ready Models. The desired information. You can also write to the address comfort setting can be selected on the wall listed on the back page of this manual. - Page 35 NOTES __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ 114668-01F www.desatech.com...
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Page 36: 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.