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Desa MDVFST manual

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Table of contents for the manual

  • Page 1

    Save this manual for future reference. DIRECT -VENT GAS FIREPLACE OWNER’S OPERA TION AND INST ALLA TION MANUAL ® MDVFST (See Thru) fireplace with manual variable blower, ON/OFF hand-held remote control, electrical junction box, gas flex line and equipment shutoff valve. This appliance may be installed as an OEM installation in a manufactured (mo[...]

  • Page 2

    2 106442 MDVFST DIRECT -VENT GAS FIREPLACE ® FRONT VIEW 30 (76cm) (Opening) 23 5 / 8 (60cm) 25 (64cm) RIGHT SIDE 22 5 / 8 (57cm) 43 1 / 8 (110cm) 32 (81cm) (Opening) 1 7 / 8 (5cm) 1 1 / 4 (3cm) BA CK VIEW 39 3 / 4 (101cm) 26 3 / 8 (67cm) 3 (8cm) 1 (3cm) 2 (5cm) 3 (8cm) 22 5 / 8 (57cm) 34 3 / 4 (88cm) T OP VIEW (Left Side) (Right Side) (F ront) (Ba[...]

  • Page 3

    3 106442 OWNER’S MANUAL To determine the safest and most efficient location for your appliance, consider the following guidelines: 1. The location must allow for proper clearances (see Clearances ). 2. Consider a location where heat output would not be affected by drafts, air con- ditioning ducts, windows, or doors. 3. A location that avoids the [...]

  • Page 4

    4 106442 MDVFST DIRECT -VENT GAS FIREPLACE ® FRAMING Once the final location has been determined, observing height clearances for vent termi- nation, you may construct framing using dimensions shown in Figure 6, depending on your installation. If the appliance is to be installed directly on carpeting, tile (other than ceramic), or any combustible [...]

  • Page 5

    5 106442 OWNER’S MANUAL LOCATION OF VENT TERMINATION When locating vent termination, it is important to observe the minimum clearances shown in Figure 10. You will avoid extra framing by positioning your fireplace against an already existing framing member. The sides of the fireplace may be positioned directly against combustible walls. *Check wi[...]

  • Page 6

    6 106442 MDVFST DIRECT -VENT GAS FIREPLACE ® WARNING: Read all instruc- tions completely and thoroughly before attempting installation. Fail- ure to do so could result in serious injury, property damage or loss of life. Operation of improperly in- stalled and maintained venting sys- tem could result in serious injury, property damage or loss of li[...]

  • Page 7

    7 106442 OWNER’S MANUAL INSTALLATION FOR HORIZONTAL TERMINATION 1. Determine the route your horizontal venting will take. Note: The location of the horizontal vent termination on the exterior wall must meet all local and national building codes and must not be easily blocked or obstructed. Snorkel terminations are available for terminations requi[...]

  • Page 8

    8 106442 MDVFST DIRECT -VENT GAS FIREPLACE ® UP UP VENTING INST ALLA TION Continued (Framing Detail) 10" (254mm) 10" (254mm) 7 1 / 2 " (190mm) V ent Opening Combustible W all V ent Opening Noncombustible W all Figure 14 - Vent Opening Requirements 3. Attach vent pipe assembly to the fire- place. Set fireplace in front of it’ s per[...]

  • Page 9

    9 106442 OWNER’S MANUAL UP Continued VENTING INST ALLA TION Continued Figure 18 - Horizontal Termination Configuration for Rigid Venting Using One 90 ° Elbow Figure 19 - Horizontal Termination Using Flexible Venting (MD V GFK Kit Shown) Horizontal V enting V ertical (V) Horizontal (H) 49.5" min. 15" max. (45 ° elbow , 1' vertical[...]

  • Page 10

    10 106442 MDVFST DIRECT -VENT GAS FIREPLACE ® 4. Connect a section of pipe and extend up through the hole. Note: If an offset is needed to avoid ob- structions, you must support the vent pipe every 3 feet. Use wall straps for this pur- pose (see Figure 21). Whenever possible, use 45 ° elbows instead of 90 ° elbows. The 45 ° elbow offers less re[...]

  • Page 11

    11 106442 OWNER’S MANUAL VENTING INST ALLA TION Continued Continued Figure 23 - Cathedral Ceiling Support Box Installation Non-hardening Mastic under all edges of support box before nailing Figure 24 - Installed Cathedral Ceiling Support Box Vertical Termination Configurations Figures 25 through 28 show four different configurations for vertical [...]

  • Page 12

    12 106442 MDVFST DIRECT -VENT GAS FIREPLACE ® V er tical V enting V = 40' max. Figure 28 - Vertical Rigid Venting Configuration With No Horizontal Run VENTING INST ALLA TION Continued V enting with T wo 9 0 ° Elbo ws V ertical (V 1 ) Horizontal (H) 5' min. 6' max. 6' min. 12' max. 7' min. 18' max. 8' min. 2[...]

  • Page 13

    13 106442 OWNER’S MANUAL VENTING INST ALLA TION Continued HIGH ALTITUDE INSTALLATION Your Vanguard direct-vent fireplace has been CSA/AGA tested and approved for elevations from 0-2000 feet and CGA certi- fied for elevations from 0-4500 feet. When installing this fireplace at an elevation above 2000 feet (in the USA), you may need to decrease the[...]

  • Page 14

    14 106442 MDVFST DIRECT -VENT GAS FIREPLACE ® INST ALLA TION BLOWER ASSEMBLY NOTE: The blower is preinstalled in this fireplace. Verify blower assembly place- ment during installation. The blower may have shifted during shipping. 1. T o remove lower louver, pull both top spring latches toward the center of the appliance at the same time until they[...]

  • Page 15

    15 106442 OWNER’S MANUAL Figure 34 - Wall Switch Wiring Diagram WIRELESS HAND-HELD REMOTE CONTROL (GHRC SERIES) INSTALLATION Note: If using the wireless hand-held re- mote control, the wall switch is no longer operational. Figure 36 - Installing Remote Receiver (Shown from Rear of Mounting Bracket) Figure 37 - Installing Battery in Receiver INST [...]

  • Page 16

    16 106442 MDVFST DIRECT -VENT GAS FIREPLACE ® INST ALLA TION Continued GAS LINE HOOKUP Figure 39 - Typical Exterior Wall Gas Shut-Off Installation WARNING: Gas line hookup should be done by your gas sup- plier or a qualified service person. WARNING: Before you pro- ceed, make sure your gas supply is OFF. An equipment shutoff valve has been in- clu[...]

  • Page 17

    17 106442 OWNER’S MANUAL Continued INST ALLA TION Continued INSTALLING LOG SET Open Close Figure 42 - Removing Glass Door GAS SUPPLY TESTING Note: This section is intended as a guide for qualified service technicians installing gas to the appliance. CAUTION: Do not connect appliance before pressure test- ing gas piping. Damage to the gas valve ma[...]

  • Page 18

    18 106442 MDVFST DIRECT -VENT GAS FIREPLACE ® INST ALLA TION Continued BURNER REMOVAL CAUTION: Before proceeding, make sure the entire unit is cool. 1. Remove the top and bottom louvers and screen. Open the glass door (left or right side). 2. Carefully remove the log set. 3. Remove the screw that attaches the burner to the bracket. 4. Slide the bu[...]

  • Page 19

    19 106442 OWNER’S MANUAL CAUTION: If the glass breaks, be cautious of fragments on the floor. Keep children away from the area. Do not operate the unit. Use proper safety gloves to re- move the broken glass door. Dis- card safely. A glass door kit can be ordered through your local distributor. Do not substitute other material for the glass. WARNI[...]

  • Page 20

    20 106442 MDVFST DIRECT -VENT GAS FIREPLACE ® Thermocouple Incoming Main Gas Supply Piezo Ignitor Control V alve V ariable Speed Control Electrical Rating: 120v , 60Hz, 0.7A Pilot TH TP TH/TP Thermopile Piezo Ignitor Do Not Connect T o 120V N.O.SW (W all Switch) Remote Control Pilot Gas Line Wireway GND BLK WHT GRN Incoming 120V AC (Fuse Box or Br[...]

  • Page 21

    21 106442 OWNER’S MANUAL INST ALLA TION INSTRUCTIONS FOR CONVERSION NA TURAL TO PROP ANE/LP BEFORE YOU BEGIN The conversion parts are packaged with the unit. Please check the contents before be- ginning this conversion. Make sure the gas control valve is in the OFF position and all electrical power to the appliance of OFF. Wait five (5) minutes t[...]

  • Page 22

    22 106442 MDVFST DIRECT -VENT GAS FIREPLACE ® ADJUSTING AIR SHUTTER The air shutter, located at the underside of the main burner (see Figure 59 ), has been factory preset to the proper air-to-gas ratio which results in an even, clean burning flame across the burner (see Figure 60). If readjustment is necessary, you can restore the proper air-to- g[...]

  • Page 23

    23 106442 OWNER’S MANUAL TROUBLESHOOTING OBSERVED PROBLEM Pilot will not light No gas to burner, although wall switch and valve are set to the ON position Frequent pilot outage Burner goes off after a short time When ignitor button is pressed, there is no spark at pilot Remote does not function POSSIBLE CAUSE 1. No gas supply , or shutof f valve [...]

  • Page 24

    24 106442 MDVFST DIRECT -VENT GAS FIREPLACE ® TROUBLESHOOTING Continued POSSIBLE CAUSE 1 . Gas supply turned off or equipment shutoff valve closed 2. Control knob not in PILOT position 3. Control knob not pressed in while in PILOT position 4. Air in gas lines when installed 5 . Depleted gas supply (propane/LP models only) 6. Pilot is clogged 7. Ga[...]

  • Page 25

    25 106442 OWNER’S MANUAL OBSERVED PROBLEM Glass soots Fireplace produces a clicking/ticking noise just after burners are lit or shut off REMEDY 1. Adjust the log set so that the flame does not excessively impinge on it 2. Inspect the opening at the base of the burner to see that it is NOT packed with any type of material 1. This is common. If noi[...]

  • Page 26

    26 106442 MDVFST DIRECT -VENT GAS FIREPLACE ® ACCESSORIES RECEIVER AND HAND-HELD ON/OFF REMOTE CONTROL KIT - GHRC For all models. Allows the gas log heater to be turned on and off by using a hand-held remote control. LOG SET - 105891-01 (27237) Log Piece A - 105896-01 (27238) Log Piece B - 105895-01 (27239) Log Piece C - 105893-01 (27242) Log Piec[...]

  • Page 27

    27 106442 OWNER’S MANUAL PILOT ASSEMBLY Natural - 105883-01 (25701) Propane/LP - 105883-02 (25702) If in need of replacing, have a qualified technician replace it. GAS CONTROL VALVE Convertible Control 104496-03(14480) If in need of replacing, have a qualified technician replace it. REFRACTORY PIECES Front (Bottom) 105886-01 (25854) Left/Right (B[...]

  • Page 28

    LIMITED WARRANTY DIRECT-VENT FIREPLACE DESA International warrants this product to be free from defects in materials and components for four (4) years from the date of first purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions. To make a claim under this warranty the[...]