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                        DIREcT-VENT FIREPLAcE
OWNER’S OPERATION AND INSTALLATION MANUAL
NATURAL GAS MODELS V42V-A, VV42NB(1) AND chDV42NR-B
PROPANE/LP GAS MODELS V42P-A AND VV42PB(1)
WARNING: If the information in this manual is 
WARNING: Improper installation, adjust-
not followed exactly, a fire or explosion may 
ment, alteration, service, or maintenance 
result causing property damage, personal 
can cause injury or property damage. Refer 
injury, or loss of life.
to this manual for correct installation and 
operatio
                    
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                        TABLE OF cONTENTS Safety Information ........................................................................ Cleaning and Maintenance ......................................................... 4 Product Identification ....................................................................3 Troubleshooting .......................................................................... 5 Local Codes..................................................................................3 Replacement Parts ...
                    
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                        SAFETy INFORMATION LOcAL cODES Install and use fireplace with care. Follow all local codes. In the  Continued absence to local codes, use the current National Fuel Gas Code  12. Do not use this fireplace to cook food or burn paper or other  ANSI Z223.1/NFPA 54* (USA) or the current CSA-B149.1 Instal- objects. lation Code (Canada). 13. Do not use any solid fuels (wood, coal, paper, cardboard, etc.)  *Available from: in this fireplace. Use only the gas type indicated on fireplace  American Nationa
                    
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                        PRE-INSTALLATION  PREPARATION LOCAtION AND SPACE REqUIREMENtS Flush with a wall Determine the safest and most efficient location for your DESA  Corner  direct-vent fireplace. Make sure that rafters and wall studs are not  installation in the way of the venting system. Choose a location where the heat  Through exterior wall  output is not affected by drafts, air conditioning ducts, windows  enclosed in a chase or doors. Figure 2 shows some common locations. Be aware of all  restrictions and preca
                    
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                        PRE-INSTALLATION  1 2 PREPARATION Continued 3 A Wall FRAMING AND FINISHING 4 Figure 4 shows typical framing of this fireplace. Figure 5 shows fram- B 5 ing for corner installation. All minimum clearances must be met. C 6 For available accessories for this fireplace, see Accessories on page  D 29. If you are using a separate combustible mantel piece, refer to  E 7 Figure 6 for proper installation height. You can install noncombustible  F G mantels at any height above the fireplace. Note: Noncombu
                    
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                        V G G V A D E V B L LOcATION OF TERMINATION cAP N N H C I B Fixed V V Fixed Closed Openable Closed Openable B F V G V J X B B M A V K X V TERMINATION CAP AIR SUPPLY INLET G GAS METER RESTRICTED AREA X (TERMINATION PROHIBITED) A = clearance above grade, veranda, porch, deck, or balcony I = clearance to service regulator vent outlet [*72" (182.9 cm)   [*12" (30.5 cm) minimum]  minimum] B =  clearance to window or door that may be opened J = clearance to non-mechanical air supply inlet to building 
                    
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                        INSt ALLAtION PRECAUtIONS VENTING INSTALLATION  • Wear gloves and safety glasses for protection INSTRUcTIONS • Use extreme caution when using ladders or when on roof tops • Be aware of electrical wiring locations in walls and ceilings NOtICE: Read these instructions completely before  attempting installation. The following actions will void the warranty on your venting system: These models are tested and approved for use with DESA (direct- • Installation of any damaged venting component vent) pi
                    
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                        VENTING INSTALLATION  Female  Locking Lugs INSTRUcTIONS Continued 2. Direct vent pipe sections and components are designed with  Male  special twist-lock connections. Slots 	 t wist-Lock Procedure: The female ends of the pipes have  locking lugs (indentations). These lugs will slide straight into  matching slots on the male ends of adjacent pipes. Push pipe  sections together and twist one section clockwise approxi- Figure 8 - Vent Pipe Connections mately one-quarter turn until the sections are 
                    
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                        VENTING INSTALLATION  INSTRUcTIONS Minimum Pipe  Siding Standoff Continued 1 Overlap 1 / " 4 7. Combustible Exterior Wall Only: Slide the wall firestop over  the vent pipe before connecting horizontal run to vent cap (see  Screws Figure 12). Direct Vent  8. Carefully move fireplace, with vent assembly attached, toward Pipe wall and insert vent pipe into horizontal termination. The pipe  Wall  1 overlap should be a minimum of 1 /4". Firestop 9. Combustible Exterior Wall Only: Slide wall firestop 
                    
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                        CORNER INSTALLATION VENTING INSTALLATION  Recommended Applications: INSTRUcTIONS • Corner ground floor installation Continued • Ground floor installation where pipe vents horizontally through  wall (over 12" horizontal pipe) Horizontal t ermination Configurations Figures 14 through 18 show different configurations and alterna- • Basement installation where one foot clearance from ground to  tives for venting with horizontal termination. Each figure includes  termination is possible a chart with 
                    
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                        VENTING INSTALLATION INSTRUcTIONS Continued SNORKEL TERMINATION INSTALLATION Recommended Applications: • Installations requiring a vertical rise on building exterior • Any installation using snorkel termination to achieve one foot above ground Snorkel terminations are available for installations requiring a vertical rise on the exterior of the building. If installing snorkel termina- tion below grade, you must provide proper drainage to prevent water from entering snorkel termination (see Figure
                    
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                        2. Assemble the desired lengths of pipe and elbows necessary to  VENTING INSTALLATION  reach from the fireplace flue up through the firestop. Be sure all  INSTRUcTIONS pipe and elbow connections are fully twist-locked (see Figure  8, page 8). Continued 3. Cut a hole in the roof using the locating hole as a center point.  INSt ALLAt ION FOR vERt ICAL t ERMINAt ION (Cover any exposed open vent pipes before cutting hole in roof.)  Note: Vertical restrictor must be installed in all vertical installa
                    
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                        VENTING INSTALLATION  INSTRUcTIONS Continued Venting with Two 90° Elbows vertical t ermination Configurations  Vertical (V ) Horizontal (H) 1 Figures 21 through 24 show four different configurations for verti-  5' min. 6' max. cal termination.  6' min. 1' max.  7' min. 18' max. Venting with Two 90° Elbows  8' min. 0' max.  Vertical (V) Horizontal (H ) + 1   Horizontal (H ) 2  5' min. ' max. Note: Install restrictor   6' min. 4' max. into inner collar of  fireplace as shown.  7' min. 6' max.  
                    
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                        Number Description VENTING INSTALLATION  VR-58 Vertical Restrictor - Galvanized INSTRUcTIONS S-58 Vinyl Siding Standoff - Galvanized WS-58 Wall Strap Continued CS-58 Cathedral Ceiling Support HIGH ALTITUDE INSTALLATION FP-58 Firestop Plate Your DESA direct-vent fireplace has been CSA tested and approved  SF-58 Stucco Flashing - For use with HTS-5 for elevations from 0-2000 feet (USA) and elevations from 0-4500  FIREPLAcE INSTALLATION feet (Canada). When installing this fireplace at an elevation 
                    
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                        FIREPLAcE INSTALLATION Continued 3.  Place the blower against the lower rear wall of the firebox outer  wrapper with the exhaust port directed upward. The blower will  fit inside the back opening and be held in position against the  back wall by the magnets (see Figure 25, page 14). 4.  Be certain that all wire terminals are securely attached to ter- minals on blower motor and that the screw retaining the green Wiring Diagram Decal  1" in Front of Blower ground wire is tight. 5.  Mount speed co
                    
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                        INSt ALLING GAS PIPING t O FIREPLACE  FIREPLAcE INSTALLATION LOCAtION Continued  WARNING: A qualified service person must connect  4. Be certain that all wire terminals are securely attached to ter- fireplace to gas supply. Follow all local codes. minals on blower motor and thermal switch, and that the screw  for the thermodisc bracket and green ground wire is tight.  5. Mount the speed control box against the mounting plate provided  CAUtION: For propane/LP units, never connect  in the lower fi
                    
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                        FIREPLAcE INSTALLATION To Gas Supply Equipment  Continued (Natural) Shutoff Valve Installation must include an equipment shutoff valve, union, and  To External  plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge  Regulator  hook up. NPT tap must be upstream from fireplace (see Figure 31). (Propane/LP) Control  IMPORTANT: Install main gas valve (equipment shutoff valve) Valve in an accessible location. The main gas valve is for turning on or  Flexible Gas Line  shutting off the gas 
                    
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                        INSTALLING OPTIONAL WIRELESS HAND- FIREPLAcE INSTALLATION HELD REMOtE CONtROL - HRC100 AND  Continued HRC200 SERIES 3. Check all joints from propane/LP supply tank or gas meter to  NOtICE: Use only alkaline batteries (not included). equipment shutoff valve (see Figure 34 or 35). Apply noncor- rosive leak detection fluid to all joints. Bubbles forming show  Installing Remote Receiver a leak. Correct all leaks at once. 1. Open bottom louver and locate the switch bracket on the left. 2. Unscrew the
                    
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                        2. Lift up on latches to unlock. There are two on top of firebox and  FIREPLAcE INSTALLATION two below firebox that hold glass door in place (see Figure 41). Continued 3. While holding glass door to prevent it from falling and causing  Remote Control Unit injury, remove the five screws from the hinge located on the  Battery Cover left side of door frame assembly (see Figure 41).  4. Remount the new frame at the hinge with five new screws  before closing door. This will ensure seating of the gask
                    
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                        1 1 2 4 5 3 INSt ALLING LOGS, LAvA ROCK AND  FIREPLAcE INSTALLATION GLOWING EMbERS Continued Each log is marked with a number. These numbers will help you  identify the log when installing. It is very important to install these  6. Install left side brick panel by sliding it between burner as- sembly and side of fireplace (see Figure 43). logs exactly as instructed. Do not modify logs. Only use logs sup- plied with fireplace. 7. Install the right brick panel using the same method described  Open