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                        UNVENTED (VENT-FREE) UNIVERSAL FIREBOX
OWNER’S OPERATION AND INSTALLATION MANUAL
PFS
®
US
NON-CIRCULATINg MODELS
V32S, VFB32NC, V36S, V36SH, VFB36NC1, V42S, V42SH AND VFB42NC1
CIRCULATINg MODELS
V32, V36, V42, CUVF36C, VFB32C, VFB36C1, VFB42C1, V36H AND V42H
OUTSIDE AIR MODELS 
V32A, V32AS, VFB32AC, VFB32ANC, V36A, V36AS, V36ASH, 
V36AH, VFB36AC, VFB36ANC, V42A, V42AS, V42ASH, V42AH, 
VFB42AC, VFB42ANC
 WARNING: If the information in this manual is not 
followed exactly, a fire or explosion may 
                    
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                        TABLE OF CONTENTS Safety .................................................................. 2 Installation ........................................................... 9 Local Codes......................................................... 3 Replacement Parts ............................................ 18 Product Features ................................................. 4 Technical Service............................................... 18 Locating Firebox ........................................
                    
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                        SAFETy Continued 1. Do not use this firebox as a wood-burning  f irebox front and screen become  fireplace. Use only decorative unvented  very hot when running heater.  room heaters (log sets). Keep children and adults away  2. Do not add extra logs or ornaments such  from hot surface to avoid burns  as pine cones, vermiculite or rock wool.  Using these added items can cause  or clothing ignition. f irebox  sooting. will remain hot for a time after  3. Do not use blower accessory with model  shu
                    
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                        PRODUCT FEATURES opeRA tIoN ReFRActoR y bRIck lINeR  This firebox is designed for use with approved Your firebox may feature a concrete refrac- ANSI Z21.11.2 decorative type unvented room tory brick liner. As with all concrete liners,  heaters. (Physical size limitations apply. Refer this liner may develop slight cracks when  to minimum firebox requirements supplied exposed to heat. These cracks will not affect  with log heater.) It requires no outside vent- the performance of the fireplace or v
                    
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                        PRODUCT SPECIFICATIONS 32" models Outside Air  Kit Location  (Optional) 1 22 /2" 4" 1 8 / " 8 1 10 /2" 1 8 /8" 9 2 /16" 5/8" 7 3 /16" 1 15 25 /8" 8 /16" 1 29 /2" 7 34 /16" 1 3 19 /2" 36 /8" 11 16 /16" 13 2 / " 16 1 12 /4" Standoffs 1 4 /4" 5 8 /8" 1 36 /2" 1 Built-In 3 /2" Side 1 Nailing 32 /4" Flanges 7 18 /16" 15 3 14 /16" 16 /4" 9 1 1 / " 29 /2" 16 Square Gas Line 3 3 /8" 1 Access 8 /8" Holes 9 5 2 /16" 6 / " 16 1 2 /4" Electrical 6" 15 8 / " Front View  16 Access Hole 3 9 /4" Right Side View
                    
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                        PRODUCT SPECIFICATIONS Continued 36" ANd 42" models Note: If only one dimension is shown, the dimension is the same for both 36" and 42" mod- els. Outside Air  Firebox Top View  Kit Location  (Optional) Right Side  View  6 www.fmiproducts.com 108662-01L                                                                                                                                                                                                                                                       
                    
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                        AIR FOR COMBUSTION AND VENTILATION unusually t ight 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  and ventilation. However, in buildings of un- space unless the required vol- usually tight construction, you must provide  ume of indoor combustion air  additional fresh air. is provided by the method de- unusually tight construction is defined as  scribed in the National Fuel Gas  con
                    
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                        AIR FOR COMBUSTION AND VENTILATION Continued 4. Compare the maximum Btu/Hr the space  deteRmINING FResh-AIR FloW  can support with the actual amount of Btu/ FoR heA teR locA tIoN Hr used. Determining if You Have a Confined or    _________ Btu/Hr (maximum the space  unconfined space can support)  Use this work sheet to determine if you have    _________ Btu/Hr (actual amount of  a confined or unconfined space.   Btu/Hr used) space: Includes the room in which you will   Example: 63,360 Btu/Hr (max
                    
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                        AIR FOR COMBUSTION AND VENTILATION ventilation Air From outdoors veNtIlA tIoN AIR Provide extra fresh air by using ventilation  Ventilation air from inside Building  grills or ducts. You must provide two perma- This fresh air would come from an adjoining  nent openings: one within 12" of the ceiling  unconfined space. When ventilating to an  and one within 12" of the floor. Connect these  adjoining unconfined space, you must provide  items directly to the outdoors or spaces open  two permanent o
                    
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                        INSTALLATION Continued IMPORTANT: Vent-free gas log heaters add optional cabinet mantels (see Accessories,  moisture to the air. Although this is beneficial, page 18) or as a built-in unit. Clearances are the  installing firebox in rooms without enough same for either installation method.  ventilation air may cause mildew to form from  too much moisture. See Air for Combustion  c Aut Io N: do not install  and Ventilation, page 7.  the firebox directly on carpet  IMPORTANT: Make sure firebox is l
                    
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                        INSTALLATION t able 1 Not Ice : If your installation does  rough opening Dimensions for  not meet the minimum clear- built-in Installation ances shown, you must do one  Front Width Depth Model (Inside to Inside) Height (Min.) of the following: 7 3 1 32" 34 /8" 36 /4" 16 / " 4 • raise the mantel to an accept- 1 1 3 2 2 4 36" 41 / " 40 / " 20 / " able height 5 1 5 8 2 8 42" 48 / " 44 / " 22 / " • remove the mantel u b Ilt-IN FIRebox INst AllA tIoN Built-in installation of this firebox involves  Fi
                    
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                        INSTALLATION Continued IMPORTANT: If installing blower accessory IMPORTANT: Noncombustible materials such  (circulating models with louvers only), see as brick, tile, etc. may overlap the front facing,  Hard-Wiring Firebox, page 16. but should never cover any necessary open- ings like louvered slots. 3. Carefully set firebox in front of rough open- ing with back of firebox inside wall open-  WARNING: do not allow  ing. IMPORTANT: If installing a perimeter  trim kit, see instructions included wit
                    
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                        INSTALLATION Continued INst AllING GAs lINe INst AllING optIoNAl bloWeR  AccessoRIes notiCe: a qualified service per- son must connect heater to gas NotIce: the firebox identifica- supply. follow all local codes. tion label (including model num- ber, serial number, clearances,  IMPORTANT: See Connecting to Gas Supply  etc.) is located in the right side  in your log set owner’s manual for details on  screen pocket area on the front  gas hookup. of the firebox. see figure 21,  You may run the gas 
                    
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                        INSTALLATION Continued  Decide which way you intend to gain access model bk Installation into the bottom rear of the firebox to install 1. Attach the power cord to blower motor by  the blower accessory. The lower front panel firmly pushing two female terminals at end  can be removed easily by snapping out the of power cord onto two spade terminals  front with a flat blade screwdriver. Use cau- on blower motor (see Figure 13). tion not to scratch any surfaces. Models with  2. Attach green ground 
                    
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                        INSTALLATION Continued  bracket (see Figure 14). Secure speed 14. Turn blower on and check for operation.  control to bracket with lock nut by pushing Turn blower off by turning knob fully coun- and turning lock nut with pliers clockwise terclockwise before continuing.  until it is tight against bracket. 15. Peel off backing paper and stick supplied  7. Remove knockout plug from louver panel wiring diagram decal on firebox bottom  by pressing top and bottom retaining clips approximately 12" in f
                    
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                        INSTALLATION Continued  3. Using screws provided, fasten upper 12. Replace all panels and/or brick bottom  flange of blower bracket to hearth pan and panel if previously removed. end flanges to leg stands (see Figure 16, ON/OFF 110/115   Panel Switch V .A.C.  page 15). Black   Hot   Note: The wire assembly must be ar- Blower Blower Blower Motor Motor Motor Nuetral   ranged in front of and away from fan No. 1 Black No. 2 No. 3 blades to reach power receptacle plug. 4. Remove 2 connectors from ON/
                    
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                        INSTALLATION Continued  combustIoN AIR kIt model Ak4 INst AllING FIReplAce hood  (oPtional) ANd scReeN The outside air kit may be installed on the 1. Attach hood to firebox using screws pro- left side of the fireplace only. The vent can be vided (see Figure 21). installed through any outside wall a minimum  2. Insert each rod through all rings located  of three feet below fireplace termination cap.  at top of screen. The handle to operate the damper door for the  3. Insert first rod into rear ho
                    
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                        REPLACEMENT PARTS Note: Use only original replacement parts. When calling, have ready: This will protect your warranty coverage for  • your name parts replaced under warranty. • your address Contact authorized dealers of this product.  • model and serial numbers of your heater If they can’t supply original replacement  • how heater was malfunctioning part(s), call FMI PRODUCTS, LLC at 1-866- • purchase date 672-6040. Usually, we will ask you to return the part to  the factory. TECHNICAL SERVICE 
                    
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                        ACCESSORIES Continued mANtels FAce/louveR AN p el kIts 32" WAll mANtels smooth Faced - black W32tu - 32" Unfinished, Traditional sp32 - 32" Model, sp36 - 36" Model, W32to - 32" Oak Stain, Traditional sp42 - 42" Model W32co - 32" Oak Stain, Classic stamped louver - Black W32do - 32" Oak Stain, Dentil sl32 - 32" Model, sl36 - 36" Model, W32Go - 32" Oak Stain, Georgian sl42 - 42" Model 32" coRNeR mANtels Rolled - black c32tu - 32" Unfinished, Traditional Rl32 - 32" Model, Rl36 - 36" Model, c32to - 
                    
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                        PARTS models v32, v32A, v32s, v32As, vF32 b c, vFb32Ac, vFb32Nc,  vF32AN b c 22  21  20  23  18  19  17  16  28  15  29  10  25  9  7  26  5  24  27  4  11  14  3  12  6  13  2  8  1  20 www.fmiproducts.com 108662-01L