DIRECT-VENT FIREPLACE OWNER’S OPERATION AND INSTALLATION MANUAL NATURAL GAS MODELs (V)K42EN SERIES PROPANE/LP GAS MODELs (V)K42EP SERIES 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. FOR YOUR SAFETY 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.
Table of Contents Safety Information.........................................................................2 Product Identification.....................................................................3 Local Codes..................................................................................3 Product Features...........................................................................3 Pre-Installation Preparation...........................................................4 Location of Termination Cap....
Safety information Continued 12. Do not use this fireplace to cook food or burn paper or other objects. 13. Do not use any solid fuels (wood, coal, paper, cardboard, etc.) in this fireplace. Use only the gas type indicated on fireplace nameplate. 14. This appliance, when installed, must be electrically grounded in accordance with local codes or, in the absence of local codes, with the National Electrical Code, ANSI/NFPA 70, or the Canadian Electrical Code, CSA C22.1. 15.
Pre-Installation Preparation Location and space requirements Flush with a wall Determine the safest and most efficient location for your DESA direct-vent fireplace. Make sure that rafters and wall studs are not in the way of the venting system. Choose a location where the heat output is not affected by drafts, air conditioning ducts, windows or doors. Figure 2 shows some common locations.
Pre-Installation Preparation 1 2 Continued 3 A framing and finishing 4 Figure 4 shows typical framing of this fireplace. Figure 5 shows framing for corner installation. All minimum clearances must be met. For available accessories for this fireplace, see Accessories on page 32. If you are using a separate combustible mantel piece, refer to Figure 6 for proper installation height. You can install noncombustible mantels at any height above the fireplace.
Location of Termination Cap N N D H V L E B C Fixed Closed F B Openable Fixed Closed V Openable V I V G B V B B J X V G G M A V K X V A V TERMINATION CAP G GAS METER RESTRICTED AREA (TERMINATION PROHIBITED) clearance to service regulator vent outlet [*72" (182.9 cm) minimum] clearance to non-mechanical air supply inlet to building or the combustion air inlet to any other fireplace [*12" (30.5 cm) minimum] clearance to a mechanical air supply inlet [*72" (182.
Venting Installation Instructions NOTICE: Read these instructions completely before attempting installation. These models are tested and approved for use with DESA (directvent) pipe components and terminations as well as Simpson-Duravent direct-vent pipe components and terminations. The venting system must terminate on the outside of the structure and can not be attached to a chimney or flue system serving a separate solid fuel or gas burning appliance.
Venting Installation instructions Female Locking Lugs Continued 2. 3. 4. 5. Direct vent pipe sections and components are designed with special twist-lock connections. Twist-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 approximately one-quarter turn until the sections are fully locked (see Figure 8).
Venting Installation instructions Minimum Pipe Overlap 11/4" Continued 7. Combustible Exterior Wall Only: Slide the wall firestop over the vent pipe before connecting horizontal run to vent cap (see Figure 12). 8. Carefully move fireplace, with vent assembly attached, toward wall and insert vent pipe into horizontal termination. The pipe overlap should be a minimum of 11/4". 9. Combustible Exterior Wall Only: Slide wall firestop against interior wall surface and attach with screws provided.
Venting Installation instructions Continued Horizontal Termination Configurations Figures 14 through 18 show different configurations and alternatives for venting with horizontal termination. Each figure includes a chart with critical minimum and maximum dimensions which MUST be met. IMPORTANT: If using a venting configuration of only horizontal venting with no vertical run, a 1/4" rise for every 12" of run toward the termination is required.
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 termination below grade, you must provide proper drainage to prevent water from entering snorkel termination (see Figure 16).
Venting Installation instructions Continued installation for vertical termination Note: Vertical restrictor must be installed in all vertical installations. 1. 2. Determine the route your vertical venting will take. If ceiling joists, roof rafters, or other framing will obstruct the venting system, consider an offset (see Figure 19) to avoid cutting load bearing members.
Venting Installation instructions Continued Venting with Two 90° Elbows Vertical (V1) Horizontal (H) 5' min. 6' max. 6' min. 12' max. 7' min. 18' max. 8' min. 20' max. Vertical Termination Configurations Figures 21 through 24 show four different configurations for vertical termination. Venting with Two 90° Elbows Vertical (V) Horizontal (H1) + Horizontal (H2) 5' min. 2' max. 6' min. 4' max. 7' min. 6' max. 8' min. 8' max. 20' max. 8' max.
Venting Installation instructions Continued High Altitude Installation Your DESA direct-vent fireplace has been CSA tested and approved for elevations from 0-2000 feet (USA) and elevations from 0-4500 feet (Canada). When installing this fireplace at an elevation above 2000 feet (in the USA), you may need to decrease the input rating by changing the existing burner orifice to a smaller size. Reduce input 4% for each 1000 feet above sea level.
Fireplace Installation Continued 2. kc B W al B 1 01 1/ .V 51 C.A . B al kc h W i et er G ne Wiring Diagram Decal 12" in Front of Blower Figure 27 - Location of Wiring Diagram Decal (Model May Vary From Illustration) Model BKT Installation Note: When installing the BKT thermostatically-controlled blower, you must first secure the thermal switch bracket to the blower if it has not already been factory installed. 1.
Fireplace Installation Continued Place the blower against the lower rear wall of the firebox outer wrapper with the exhaust port directed upward and the thermodisc positioned up near the fireplace bottom. The thermodisc must be oriented near the fireplace bottom as shown in Figure 28, page 15, in order to sense temperature and properly operate. The blower will be held in position against the back wall by the magnets incorporated onto the blower housing (see Figure 28, page 15). 4.
Fireplace Installation Continued CONNECTING FIREPLACE TO GAS SUPPLY Installation Items Needed Installation must include an equipment shutoff valve, union, and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from fireplace (see Figure 31). IMPORTANT: Install main gas valve (equipment shutoff valve) in an accessible location. The main gas valve is for turning on or shutting off the gas to the appliance.
Fireplace Installation Continued Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa) 1. 2. 3. Close equipment shutoff valve (see Figure 33). Pressurize supply piping system by either opening propane/LP supply tank valve for propane/LP gas fireplace or opening main gas valve located on or near gas meter for natural gas fireplace, or using compressed air. Check all joints from propane/LP supply tank or gas meter to equipment shutoff valve (see Figure 34 or 35).
Fireplace Installation Continued Removing Glass Door If replacement of glass is necessary, the entire assembly, glass and frame, must be replaced. If glass is broken, wear gloves and tape the remaining fragments onto the frame. 1. 2. 3. 4. 5. 6. 7. Remove screen assembly by pushing the rod either left or right and then down and forward to remove screen/rod assembly from the firebox. Set assembly aside. Lift up on latches to unlock.
Fireplace Installation 7. Continued Installing logs, lava rock and glowing embers Each log is marked with a number. These numbers will help you identify the log when installing. It is very important to install these logs exactly as instructed. Do not modify logs. Only use logs supplied with fireplace. Open louvers, remove screen, unlock door latches, and open glass door. See steps 1 and 2 of Removing/Replacing Glass Door, page 19. Install logs according to instructions for fireplace model numbers. 1. 2.
Fireplace Installation Battery Cover Continued 3. 4. 5. 12 Volt Battery Activate the remote handset battery by removing the insulating tab on the back of the handset (see Figure 46). The battery is included pre-installed. Once the battery is activated the unit is ready to use. Close lower louver panel.
Operating Fireplace for your safety read before lighting WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these instructions exactly. B. BEFORE LIGHTING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.
Inspecting Burners Cleaning and Maintenance Check pilot flame pattern and burner flame patterns often. pilot assembly The pilot assembly is factory preset for the proper flame. Alterations may have occurred during shipping and handling. The pilot is located on the back right hand side of the burner. The flame must envelope 1/4" of top of the ignitor/sensor and grounding stem.
Cleaning and Maintenance Venting system Continued pilot and burners • Remove ember material before cleaning burners and replace when cleaning is complete. • Burner and controls should be cleaned with compressed air to remove dust, dirt, or lint. • Use a vacuum cleaner or small, soft bristled brush to remove excess dust, dirt, or lint. logs • If you remove logs for cleaning, refer to Installing Logs, Lava Rock, and Glowing Embers, page 20, to properly replace logs.
Troubleshooting WARNING: Turn off 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 pilot. This can damage pilot unit. Note: All troubleshooting items are listed in order of operation. The two most common causes of a malfunctioning gas appliance are: 1. Loose wiring connections 2.
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. Follow the gas supplier’s instructions. • If you cannot reach your gas supplier, call the fire department. • • • • OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Fireplace produces a clicking/ticking noise just after burner is lit or shut off 1.
Replacement Parts Service Hints Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty. When Gas Pressure Is Too Low Parts Under Warranty • burners will have delayed ignition Contact authorized retailers of this product. If they can not supply original replacement part(s), call DESA’s Customer Service Department at 1-866-672-6040.
Illustrated Parts Breakdown MODELS (V)K42EN, (V)K42ENH, (V)k42ep and (v)k42eph 10-9 10-7 10-6 6 10-5 7 10-1 8 10-2 1 10-3 9 4 10-4 11 10-8 3 20 12 21 19 17 18 13 14 15 16 2 5 28 www.desatech.
Parts List MODELS (V)K42EN, (V)K42ENH, (V)k42ep and (v)k42eph This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 27 of this manual. KEY NO. PART NO.
illustrated parts breakdown Burner Assembly MODELS (V)K42EN, (V)K42ENH, (V)k42ep and (v)k42eph 1 12 12 7 6 2 8 9 3 10 12 18 4 19 5 20 17 5 21 12 22 23 16 24 30 25 11 14 15 13 28 27 29 26 30 www.desatech.
PARTS LIST Burner Assembly MODELS (V)K42EN, (V)K42ENH, (V)k42ep and (v)k42eph This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 27 of this manual. 111922-01D KEY NO. PART NO. DESCRIPTION 1 111920-01 Pan Assembly Burner 1 2 111311-02 Grate Base 1 3 111312-02 Burner Base Bottom 1 4 26808 Valve Bracket 1 5 11107 Screw, #10-32 x 1/4 PPH Zinc 4 6 104506-27 Burner Orifice (Natural Gas) 1 QTY.
Accessories NOTICE: All accessories may not be available for all fireplace models. Purchase these fireplace accessories from your local retailer. If they can not supply these accessories, call DESA’ at 1-866-672-6040. for information. You can also write to the address listed on the back page of this manual. Brick Liner KIT Manual blower Kit - BK Manual variable control blower accessory provides better heat distribution. Complete installation and operation instructions included in this manual.
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Warranty Information KEEP THIS WARRANT Model Serial No. Date Purchased 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.
