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Desa CFS18PRA manual

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Table of contents for the manual

  • Page 1

    Save this manual for future reference. WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, per- sonal 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 [...]

  • Page 2

    2 104417 UNVENTED PROP ANE/LP GAS LOG HEA TER DESA INTERNA TIONAL SAFETY INFORMA TION DANGER: Carbon monoxide poisoning may lead to death! Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning re- semble the flu, with headaches, dizziness, or nausea. If you have these signs, the heater may not be working properly. Get fresh air at onc[...]

  • Page 3

    3 104417 OWNER’S MANUAL Figure 1 - VS24PR Shown PRODUCT IDENTIFICA TION LOCAL CODES Install and use heater with care. Follow all local codes. In the absence of local codes, use the latest edition of The National Fuel Gas Code ANS Z223.1 , also known as NFPA 54*. *Available from: American National Standards Institute, Inc. Batterymarch Park New Yo[...]

  • Page 4

    4 104417 UNVENTED PROP ANE/LP GAS LOG HEA TER DESA INTERNA TIONAL Today’s homes are built more energy effi- cient than ever. New materials, increased insulation, and new construction methods help reduce heat loss in homes. Home owners weather strip and caulk around windows and doors to keep the cold air out and the warm air in. During heating mon[...]

  • Page 5

    5 104417 OWNER’S MANUAL DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION Determining if You Have a Confined or Unconfined Space Use this work sheet to determine if you have a confined or unconfined space. Space: Includes the room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between the ro[...]

  • Page 6

    6 104417 UNVENTED PROP ANE/LP GAS LOG HEA TER DESA INTERNA TIONAL AIR FOR COMBUSTION AND VENTILA TION Continued Outlet Air Ventilated Attic Outlet Air Inlet Air Inlet Air Ventilated Crawl Space To Crawl Space To Attic Or Remove Door into Adjoining Room, Option 3 Ventilation Grills Into Adjoining Room, Option 2 Ventilation Grills Into Adjoining Room[...]

  • Page 7

    7 104417 OWNER’S MANUAL LOG SIZING REQUIREMENTS Minimum Firebox Size Log Front Rear* Size Height Depth Width Width 18" 17" 14" 20" 14" 24" 17" 14" 26" 18" 30" 17" 14" 32" 22" INSTALLATION AND CLEARANCES (Vent-Free Operation Only) WARNING: Maintain the mini- mum clearances.[...]

  • Page 8

    8 104417 UNVENTED PROP ANE/LP GAS LOG HEA TER DESA INTERNA TIONAL Heat Resistant Material (A) Figure 5 - Heat Resistant Material (Slate, Marble, Tile, etc.) Above Fireplace Noncombustible Material Distance (A) Requirements for Safe Installation 12" or more Noncombustible material OK. Between 8" and 12" Install fireplace hood accessor[...]

  • Page 9

    9 104417 OWNER’S MANUAL 14" Min. Combustible Material Noncombustible Material Hearth 5" Min. Combustible Material Figure 8 - Minimum Fireplace Clearances If Installed at Floor Level Figure 9 - Minimum Fireplace Clearances Above Combustible Flooring Figure 6 - Minimum Mantel Clearances Without Using Hood Figure 7 - Minimum Mantel Clearan[...]

  • Page 10

    10 104417 UNVENTED PROP ANE/LP GAS LOG HEA TER DESA INTERNA TIONAL Installation Items Needed • hardware package (provided with heater) • approved flexible gas hose (not provided) (if allowed by local codes) • sealant (resistant to propane/LP gas, not provided) • electric drill with 3/16" drill bit Note: Install optional GHRCT Receiver [...]

  • Page 11

    11 104417 OWNER’S MANUAL CONNECTING TO GAS SUPPLY NOTICE: A qualified service per- son must connect heater to gas supply. Follow all local codes. CAUTION: Never connect heater directly to the propane supply. This heater requires an external regulator (not supplied). Install the external regulator be- tween the heater and propane supply. Installat[...]

  • Page 12

    12 104417 UNVENTED PROP ANE/LP GAS LOG HEA TER DESA INTERNA TIONAL ON POSITI O POS I Open Closed Manual Shutoff Valve Pressure Testing gas Supply Piping system Test Pressures In Excess Of 1/2 PSIG 1. Disconnect heater and its individual manual shutof f v alve from gas supply piping system. Pressures in excess of 1/2 psig will damage heater regula t[...]

  • Page 13

    13 104417 OWNER’S MANUAL 4 4 Figure 18 - Installing Middle Log (#2) Figure 19 - Installing Rear Log (#3) INST ALLA TION Continued Crossover Log (#4) Hole Peg Cutout Figure 20 - Installing Crossover Log (#4) INSTALLING LOGS Each log is marked with a number. These numbers will help you identify the log when installing. It is very important to insta[...]

  • Page 14

    14 104417 UNVENTED PROP ANE/LP GAS LOG HEA TER DESA INTERNA TIONAL O F F P I L O T O N L O I H AUTO OFF ON 5. W ait f ive (5) minutes to c lear out any gas. Then smell f or gas, including near the floor . If you smell gas, STOP! F ollow “B” in the safety in- for mation above. If y ou don’t smell gas, go to the next step. 6. Press in and tur n[...]

  • Page 15

    15 104417 OWNER’S MANUAL TO TURN OFF GAS TO APPLIANCE Shutting Off Heater 1. T urn contr ol knob clockwise to the OFF position. 2a. Set selector switch in the OFF position. 2b . If Using Optional Hand-Held Re- mote: Set selector switch in the OFF position to pre vent draining battery . Shutting Off Burners Only (pilot stays lit) You may shut off [...]

  • Page 16

    16 104417 UNVENTED PROP ANE/LP GAS LOG HEA TER DESA INTERNA TIONAL The log heater will automatically cycle between pilot and the heat setting that has been selected. Shows Temperature Setting Allows Burners to be Turned On and Off with the Hand- Held Remote Unit. O F F P I L O T O N L O I H ON OFF REMOTE OPTIONAL REMOTE OPERATION OPERA TING HEA TER[...]

  • Page 17

    17 104417 OWNER’S MANUAL Figure 25 - Correct Pilot Flame Pattern Pilot Burner Thermocouple Figure 26 - Incorrect Pilot Flame Pattern WARNING: If yellow tipping occurs, your heater could pro- duce increased levels of carbon monoxide. If front burner flame pattern shows yellow tipping, follow instructions at bottom of this page. Yellow flame on rea[...]

  • Page 18

    18 104417 UNVENTED PROP ANE/LP GAS LOG HEA TER DESA INTERNA TIONAL CLEANING AND MAINTENANCE WARNING: Turn off heater and let cool before cleaning. CAUTION: You must keep control areas, burners, and cir- culating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a quali- fied service pers[...]

  • Page 19

    19 104417 OWNER’S MANUAL WARNING: Turn off and un- plug heater and let cool before servicing. Only a qualified ser- vice 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. POSSIBLE CAUSE 1. Ignitor electrode not connected to igni- tor cable 2. Ignitor [...]

  • Page 20

    20 104417 UNVENTED PROP ANE/LP GAS LOG HEA TER DESA INTERNA TIONAL REMEDY 1. Contact local propane gas company 2. Clean burner(s) (see Cleaning and Main- tenance , page 18) or replace burner orifice(s) 3. Contact qualified service person 4. Replace burner orifice(s) 5. Put selector in ON position 6. See W iring Diagram , pa ge 24 1. Contact local p[...]

  • Page 21

    21 104417 OWNER’S MANUAL REMEDY 1. This is common with most heaters. If noise is excessi ve, contact qualified ser - vice person 1. Open window to ventilate room. Stop us- ing odor causing products while heater is running 2. Refill supply tank 3. Locate and correct all leaks (see Check- ing Gas Connections , page 12) 1. Open window and/or door fo[...]

  • Page 22

    22 104417 UNVENTED PROP ANE/LP GAS LOG HEA TER DESA INTERNA TIONAL ILLUSTRA TED PA R T S BREAKDOWN VARIABLE CONTROL CFS18PRA, VS18PRA VS24PRA, VS30PRA 5 6 7 8 9 10 7 7 24 12 11 12 22 13 25 26 5 5 15 18 20 21 28 23 16 19 14 27 17 9-1 9-2 4 3 2 1[...]

  • Page 23

    23 104417 OWNER’S MANUAL P AR TS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 18 of this manual. KEY PART NUMBERS NO. VS18PRA/CFS18PRA VS24PRA VS30PRA DESCRIPTION QTY. 1 104388-01 104388-02 104388-03 Front Log (#1) 1 2 104390-01 104390-02 104390-[...]

  • Page 24

    24 104417 UNVENTED PROP ANE/LP GAS LOG HEA TER DESA INTERNA TIONAL 18" Variable 24" Variable 30" Variable Btu (Variable) 16,000/26,000 20,000/33,000 21,500/36,000 Type Gas Propane/LP Only Propane/LP Only Propane/LP Only Ignition Piezo Piezo Piezo Pressure Manifold 7.9" W.C. 7.9" W.C. 7.9" W.C. Inlet Gas Pressure (in. o[...]

  • Page 25

    25 104417 OWNER’S MANUAL Purchase these heater accessories from your local dealer. If they can not supply these accessories, call DESA International’s Parts Department at 1-800-972-7879 for referral information. You can also write to the ad- dress listed on the back page of this manual. FIREPLACE HOOD Black - GA6050 Brass - GA6052 Antique Brass[...]

  • Page 26

    KEEP THIS WARRANTY W ARRANTY INFORMA TION Always specify model and serial numbers when communicating with the factory. We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written warranty. We make no other warranty, expressed or implied. Model Serial No. Date Purchased LIMITED [...]