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UNVENTED (VENT-FREE) GAS LOG HEATER
OWNER'S OPERATION AND INSTALLATION MANUAL
Also Design Certified As
Vented Decorative Appliances
18" AND 24" REMOTE cONTROL READy MODELS
HD18NRA, HD18PRA, HD24NRA AND HD24PRA
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
Patent Pending
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Table of Contents
Related Manuals for Desa HD18NRA
Summary of Contents for Desa HD18NRA
- Page 1 Also Design Certified As Vented Decorative Appliances 18" AND 24" REMOTE cONTROL READy MODELS HD18NRA, HD18PRA, HD24NRA AND HD24PRA 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 Specifications ............ 23 Product Identification ........... 5 Troubleshooting ..........24 Local Codes............5 Technical Service..........28 Unpacking............5 Service Hints ............. 28 Product Features ..........5 Replacement Parts ..........28 Air For Combustion and Ventilation ..... 6 Accessories ............ - Page 3 SAFETy Continued WARNING: Do not use a WARNING: This product blower insert, heat exchanger contains and/or generates insert or other accessory not ap- chemicals known to the State proved for use with this heater. of California to cause cancer or birth defects or other reproduc- tive harm.
- Page 4 SAFETy Continued 1. This appliance is only for use with the type 11. 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 is defined as WARNING: This heater shall construction where: not be installed in a room or space a. walls and ceilings exposed to the out- unless the required volume of in- side atmosphere have a continuous door combustion air is provided water vapor retarder with a rating of one perm (6x10... - Page 7 AIR FOR cOMBUSTION AND VENTILATION Continued 1. Determine the volume of the space (length room or add ventilation grills between rooms. See Ventilation Air From Inside Building. x width x height). B. Vent room directly to the outdoors. See Length x Width x Height =__________cu. ft. Ventilation Air From Outdoors, page 8.
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Page 8: Installation
AIR FOR cOMBUSTION WARNING: A qualified ser- AND VENTILATION vice person must install heater. Continued Follow all local codes. Ventilation Air From Outdoors Provide extra fresh air by using ventilation NOTICE: State or local codes grills or ducts. You must provide two perma- may only allow operation of this nent openings: one within 12"... - Page 9 INSTALLATION Continued Carefully follow the instructions below. This CAUTION: This heater cre- will ensure safe installation into a masonry, UL127-listed manufactured fireplace or certi- ates warm air currents. These fied vent-free firebox. currents move heat to wall sur- faces next to heater. Installing MINIMUM CLEARANCES FOR SIDE COMBUSTIBLE MATERIAL, SIDE WALL heater next to vinyl or cloth wall...
- Page 10 INSTALLATION Continued MINIMUM NONCOMBUSTIBLE If Using Mantel MATERIAL CLEARANCES You must have noncombustible material(s) above the fireplace opening. Noncombustible If Not Using Mantel materials (such as slate, marble, tile, etc.) must Note: If using a mantel, proceed to If Using be at least 1/2"...
- Page 11 INSTALLATION Continued INSTALLING DAMpER CLAMp NOTICE: If your installation does ACCESSORY FOR VENTED not meet the minimum clear- OpERATION ances shown, you must do one Note: When used as a vented heater, ap- of the following: pliance must be installed only in a solid-fuel •...
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Page 12: Safety Information
INSTALLATION Continued See chart below for minimum permanent flue CAUTION: Do not pick up opening you must provide. Attach damper clamp so the minimum permanent flue open- heater base assembly by the ing will be maintained at all times. burner. This could damage heat- er. - Page 13 INSTALLATION Continued 7. Mark screw locations through holes in WARNING: For natural gas mounting brackets (see Figure 11). If installing in a brick-bottom fireplace, mark units, never connect heater to screw locations in mortar joint of bricks. private (non-utility) gas wells. 8.
- Page 14 INSTALLATION Continued CSA Design-Certified Natural CAUTION: Use only new, Equipment Shutoff Valve From Gas Meter With 1/8" NPT Tap* black iron or steel pipe. Inter- (5" W.C.** to nally-tinned copper tubing may 10.5" W.C. be used in certain areas. Check Pressure) Regulator your local codes.
- Page 15 INSTALLATION Continued pRESSURE TESTING GAS SUppLY pRESSURE TESTING HEATER GAS pIpING SYSTEM CONNECTIONS Test Pressures In Excess Of 1/2 PSIG 1. Open equipment shutoff valve (see Fig- (3.5 kPa) ure 14). 1. Disconnect appliance with its appliance 2. Open main gas valve located on or near main gas valve (control valve) and equip- gas meter for natural gas or open pro- ment shutoff valve from gas supply piping.
- Page 16 INSTALLATION Continued INSTALLING OpTIONAL REMOTE 9. Connect remote wires to control valve as shown in Figure 18. ACCESSORIES Note: Make sure excess wire does not Installing Remote Receiver interfere with burner or pilot. Remote control accessories are available 10. If heater was removed from fireplace be- separately (see Accessories, page 28).
- Page 17 INSTALLATION Continued Battery Cover Remote Control Unit INSTALLING LOGS WARNING: Failure to position the parts in accordance with these diagrams or failure to use only Terminal Wires parts specifically approved with this heater may result in property damage or personal injury. Battery Housing 9-Volt Battery...
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Page 18: Operation
INSTALLATION Continued 3. Place front log (#3) onto grate as shown log (#4). Match round peg on top of middle in Figure 22. log (#2) with round hole on bottom of left top log (#4). 4. Place left top log (#4) as shown in Figure 23. - Page 19 OPERATION Continued LIGHTING 5. Press in control knob and turn counter- clockwise to the PILOT position INSTRUCTIONS (see Figure 24). The ignitor will spark once. Keep control knob pressed in for 5 WARNING seconds. If control knob does not pop up •...
- Page 20 OPERATION Continued MANUAL LIGHTING CAUTION: Do not try to ad- pROCEDURE just heating levels by using the 1. Follow steps 1 through 5 under Lighting equipment shutoff valve. Instructions beginning on page 19. 2. Press control knob and light pilot with If Using Optional Remote Control match.
- Page 21 OPERATION Continued TO LOCK press both buttons on hand-held Auto (Thermostatic) Mode remote control until light stops flashing. Hand- 1. Press POWER and LOCK buttons togeth- held remote control is now locked. If fire is on er to turn on hand-held remote control. it will be turned off automatically.
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Page 22: Inspecting Burners
INSPEcTING BURNERS Check pilot flame pattern and burner flame Thermocouple patterns often. Pilot Burner pILOT FLAME pATTERN Figure 30 shows a correct pilot flame pattern. Figure 31 shows an incorrect pilot flame pat- tern. Incorrect pilot flame is not touching ther- mocouple. -
Page 23: Specifications
Burner Tube venting system of the fireplace. SPEcIFIcATIONS HD18PRA, HD24PRA HD18NRA, HD24NRA • Rating (Variable): 20,000/36,000 Btu/Hr • Rating (Variable): 23,000/37,000 Btu/Hr • Type Gas: Propane/LP • Type Gas : Natural Gas • Ignition: Piezo •... -
Page 24: Troubleshooting
TROUBLESHOOTING WARNING: Turn off and unplug 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 25 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 26 TROUBLESHOOTING Continued OBSERVED pROBLEM pOSSIBLE CAUSE REMEDY Slight smoke or odor during 1. Not enough air 1. Check burner for dirt and initial operation debris. If found, clean burner (see Cleaning and Maintenance, page 22) 2. Gas regulator defective 2. Replace gas regulator 3.
- Page 27 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 28: Technical Service
Contact authorized dealers of this product. If either contact your nearest Parts Central they can’t supply original replacement part(s), (see page 29) or call DESA Heating, LLC at call DESA Heating, LLC at 1-866-672-6040. 1-866-672-6040 for referral information. A list... -
Page 29: Parts Central
PARTS cENTRAL These Parts Centrals are privately owned businesses. They have agreed to support our customer’s needs by providing original replacement parts and accessories. Those Heater Guys Washer Equipment Co. 255 E. Stowell Street 1715 Main Street Upland, CA 91786 Kansas City, MO 64108 909-928-3011 KS, MO, AR... -
Page 30: Parts
PARTS MODELS HD18NRA, HD18PRA, HD24NRA AND HD24PRA www.desatech.com 123167-01D... - Page 31 PARTS REMOTE READY MODELS This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 28 of this manual. NO. PART NO. DESCRIpTION QTY. Log Base • • • • 120783-01 Cast Iron Grate •...
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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 one (1) year on new products and 30 days on factory reconditioned products from the date of first purchase.