VENTED GAS FIREPLACE INSTALLATION AND OWNER’S OPERATION MANUAL 4" B-VENT DECORATIVE GAS FIREPLACES MODELS (V)CB36N(E) and (V)CB36P(E) 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. — 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................................................................... 2 Product Identification............................................ 4 Local Codes......................................................... 4 Product Features.................................................. 5 Pre-Installation Preparation.................................. 5 Installation Precautions........................................ 9 Venting Installation...............................................
Safety Continued This fireplace is a vented product. This fireplace will not produce any gas leakage into your home if properly installed. This fireplace must be installed by a qualified (certified or licensed) service person. If this unit is not properly installed by a qualified service person gas and/or carbon monoxide leakage (spillage) can occur. Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning resemble the flu, with headaches, dizziness or nausea.
Safety Continued 3. 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 4.
Product Features These are a few facts that can help you understand and enjoy your vented decorative fireplace: • The (V)CB36N(E) and (V)CB36P(E) series of vented decorative fireplaces may be recessed into an exterior chase, an interior flush wall enclosure or a framed-in corner installation. • Models (V)CB36N and (V)CB36P are equipped with a millivolt gas control system that does not require electricity to operate. A piezo ignitor is provided to light the pilot without using matches or lighters.
Pre-Installation Preparation Continued • Your fireplace is designed to be used in zero clearance installations. Wall or framing material can be placed directly against any exterior surface on the back, sides or top of your fireplace, except when clearances are required from flue vent pipe, see Clearances. • If recessed into a wall, you can avoid extra framing by positioning your fireplace against an already existing framing member. • A hearth extension is not required with this appliance.
Pre-Installation Preparation Continued 14 3/4" (37.5 cm) 21" (53.3 cm) To Center of Top Vent 28 5/8" (72.7 cm) ** 14 3/4" (37.5 cm) to Nailing Flanges 12 1/4" (31 cm) to Opening 56 3/4" (144 cm) 36" (91.4 cm) **These dimensions allow for 1" clearance at sides and back of fireplace. However, 0" clearance is also permitted at all sides when framed. 36 1/4" (92.1 cm) 14 3/4" (37.
Pre-Installation Preparation Continued MANTEL CLEARANCES 1 Figure 8 shows projected mantel depths at various heights above top of louver opening. Figure 7, page 7, shows minimum allowable distances from various mantel components in relation to both sides of fireplace opening. 2 3 A 4 B C D WARNING: When finishing appliance do not overlap combustible materials onto the black front face.
Installation Precautions NOTICE: Failure to follow these instructions will void the warranty.
VENTING INSTALLATION Continued In each case the offsets must be supported and firestops must be positioned wherever the vent must pass through a sub-floor, ceiling joist or an attic overhang. The vent pipe must terminate vertically into a listed type vent cap and extend a sufficient height through an approved roof flashing, roof jack or a roof thimble. At all points the listed clearances must be maintained. Vent terminations must be located in accordance with height and proximity rules of NFPA No.
Venting Installation Continued Checking for Proper Venting After completing and checking electrical, gas and vent connections, follow lighting instructions and allow main burner to run for approximately 5 minutes. Hold a match or butane lighter flame, near opening between glass and fireplace face and play it along entire length of opening (Smoke may also be used). Proper venting will tend to draw flame or smoke into appliance.
Venting Installation Continued WARNING: This appliance, when installed must be electrically grounded in accordance with local code or in the absence of local code, with the current National Electric Code, ANSI/NFPA 70, or the Canadian Electric Code, CSA C22.1. HIGH ALTITUDE INSTALLATION Your DESA Heating, LLC direct-vent fireplace has been tested and approved in the USA for elevations from 0-2,000 feet (610 m) and in Canada at elevations from 0-4,500 feet (1,372 m).
INSTALLING OPTIONAL CONTROLS Continued 4. Connect one wire from receiver to male connector on high limit harness and one to “TH” on control valve (see Figure 14, page 12). 5. Locate two plastic mounting clips provided with kit. 6. Use clips to mount receiver on remote mounting bracket as shown in Figure 16. Plastic Mounting Clips REMOTE ON OFF Towards Front Remote Receiver Figure 16 - Mounting Remote Receiver to Bracket Installing 9-Volt Alkaline Battery in HandHeld Remote Control Unit 1.
INSTALLING OPTIONAL CONTROLS Continued WIRING DIAGRAMS NOTICE: This appliance is equipped with a vent safety shutoff switch which will shut down the appliance in case of a venting problem. Do not bypass the vent safety shutoff switch. If the appliance should shut down, have a qualified installer, service agency, or your gas supplier inspect the vent before operating. CAUTION: label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation.
Fireplace Installation CHECK GAS TYPE Use only the correct type of gas (natural or propane/LP). If your gas supply is not the correct gas type, do not install fireplace. See dealer where you purchased your fireplace for proper gas type fireplace or tro purchase gas conversion kit (see Accessories, page 31). Installing Gas Piping to Fireplace Location WARNING: A qualified service person must connect fireplace to gas supply. Follow all local codes.
Fireplace Installation Continued IMPORTANT: Install main gas valve (equipment shutoff valve) in an accessible location. The main gas valve is for turning on or shutting off gas to appliance. Check your building codes for any special requirements for locating equipment shutoff valve to fireplaces. Apply pipe joint sealant lightly to male NPT threads. This will prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged fireplace valves.
Fireplace Installation Continued Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa) 1. Close equipment shutoff valve (see Figure 25). 2. 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. 3. Check all joints from propane/LP supply tank or gas meter to equipment shutoff valve (see Figure 26, for propane/LP or Figure 27, for natural gas).
Fireplace Installation Continued Removing Louver Panels Remove top and bottom louver panels by simultaneously pulling both top end spring latches toward center of appliance until they are disengaged from locating holes (see Figure 28). Repeat for bottom spring latches and pull louvers outward. To install or replace items removed, simply reverse procedures above. Spring Clips 1.
Fireplace Installation Continued INSTALLING LOGS AND GLOWING EMBERS A 4 piece ceramic log set comes packed inside the unit firebox. Removal of glass door is necessary to unpack and assemble logs and add hearth treatments. Follow steps under Removing/Replacing Glass Door, page 18 to access logs and burner. Assemble logs and add burner treatments as follows: 1. Position base log onto burner log mounts (see Figure 31). Top Left Log Top Right Log Rear Log 2. 3. 4. 5.
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. lighting instructions 1. STOP! Read the safety information above. 2. Open lower louver panel. 3. Turn off all electric power to the fireplace. 4. Push in gas control knob slightly and turn clockwise to OFF (see Figure 33). 5. Wait five (5) minutes to clear out any gas.
Operating Fireplace Continued Manual Lighting Procedure 1. Remove glass door (see Removing/Replacing Glass Door, page 18). 2. Follow steps 1 through 8 under Lighting Instructions, page 20). 3. Press gas control knob and light pilot with match. 4. Keep gas control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release gas control knob. Follow steps 10 through 11 under Lighting Instructions, page 20). 5. Replace glass door (see Removing/Replacing Glass Door, page 18).
Operating Fireplace Continued IMPORTANT: Be sure to press the ON/ OFF buttons on hand-held remote control unit for up to 3 seconds to assure proper operation. 2. Press ON/OFF button to turn the burner on and off. To Lock press both buttons on hand-held remote control until light stops flashing. Handheld remote control is now locked. If fire is on it will be turned off automatically. In locked state, light will not light up when any button is pressed.
Inspecting Burners Check pilot flame pattern and burner flame patterns often. PILOT ASSEMBLY The pilot assembly is factory preset for proper flame height. Alterations may have occurred during shipping and handling. Call a qualified service person to readjust the pilot if necessary. The position and pattern of pilot flames in relation to sensing devices should be as shown in Figures 38 and 39 respectively.
Cleaning and Maintenance WARNING: Turn off fireplace and let cool before cleaning. CAUTION: You must keep control areas, burners, and circulating air passages of fireplace clean. Inspect these areas of fireplace before each use. Have fireplace inspected yearly by a qualified service person. Fireplace may need more frequent cleaning due to excessive lint from carpeting, bedding mate rial, pet hair, etc. GLASS DOOR WARNING: Handle glass door panel with care. Do not strike, slam, or otherwise abuse glass.
Cleaning and Maintenance Continued LOGS • If you remove logs for cleaning, refer to Installing Logs and Glowing Embers, page 19, to properly replace logs. • Use a vacuum cleaner to remove any carbon buildup on logs. • Replace log(s) if broken. See Replacement Parts, page 31. • Replace ember material periodically as needed. See Replacement Parts, page 31. VENTING SYSTEM Conduct annual inspection of the venting system following these guidelines: 1.
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 ODS/pilot. This can damage ODS/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 OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Manual Ignition System Only Pilot lights but flame goes out when control knob is released 1. Gas control knob not fully pressed in 2. Gas control knob not pressed in long enough 1. Press in gas control knob fully 2. After pilot lights, keep gas control knob pressed in 30 seconds 3. Fully open equipment shutoff valve 4.
Troubleshooting Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Heat produces a whistling noise when burner is lit 1. Turning gas control knob to HI position when burner is cold 2. Air in gas line 1. Turn gas control knob to LO position and let warm up for a minute 2. Operate burner until air is removed from line. Have gas line checked by pro pane/LP or natural gas company 3. Clean burner (see Cleaning and Maintenance, page 24) or replace burner orifice 3.
Troubleshooting Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Electronic Ignition Models Only Ignitor will not spark or pilot will not light 1. No gas supply, or shutoff valve is OFF 1. Check to see if you have gas supply and that equipment shutoff valve is opened 2. Repeat lighting procedure several times to purge all air out of lines. If after repeated attempts appliance does not light, call for qualified service and repair 3.
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. IMPORTANT: Operating heater where impurities in air exist may create odors.
Replacement Parts Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty. Usually, we will ask you to return the part to the factory. Parts Under Warranty Contact authorized dealers of this product. If they can’t supply original replacement part(s), call DESA Heating, LLC at 1-866-672-6040 for referral information. A list of authorized dealers can be found by visiting www.desatech.com.
Parts FIREPLACE ASSEMBLY FOR MODELS (V)CB36N, (V)CB36P, (V)CB36NE and (V)CB36PE 5 6 13 26 10 7 27 11 18 9 16 15 19 26 8 4 23 26 22 3 2 24 21 17 12 20 25 14 1-4 1-3 1-1 1-2 32 www.desatech.
Parts 25580 27253 117700-01 117701-01 Ember Bag Notice Label Wiring Diagram Label Wiring Diagram Label B36 NE B36 PE Log Set Burner Base Log Rear Log Right Top Log Left Top Log Burner Assembly Complete (See pages 30 and 32) Junction Box Duplex Plug Damper Assembly Vent Baffle Diverter Panel Heat Deflector Fireplace Surround Wire Harness Assembly Fireplace Top Fireplace Top Insulation Louver Assembly Hanger Bracket Glass Door Assembly Face Assembly Firebox Assembly (see pages 32 and 33 for details) Cover
Parts Burner ASSEMBLY FOR MODELS (V)CB36N (V)CB36P, (V)CB36NE and (V)CB36PE 3 7 4 8 9 5 Piezo Ignition Models Only 6 1 2 24 23 H HIG AG LT VO E 10 25 12 11 26 13 14 17 16 15 21 20 29 22 15 28 27 30 31 Electric Ignition Models Only 18 34 19 www.desatech.
Parts 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 117437-01D Remote Ignitor Bracket Ignitor Piezo Pilot Orifice #51(Natural Gas) Pilot Orifice #30 (Propane/LP Gas) Pilot Orifice BL14LP (Propane/LP Gas) Pilot Orifice BL22N (Natural Gas) Burner Orifice #45 (Natural Gas) Burner Orifice #55 (Propane/LP Gas) Fitting Bulkead w/ Nut Brass Washer, Flat 7/8" ID x 2" OD x 1/8" Thick Screw, #8 x 3/8" PPH F Zinc.
Warranty KEEP THIS WARRANTY Model __________________________ (located on product or identification tag) Serial No. _______________________ (located on product or identification tag) Date Purchased __________________ Keep receipt for warranty verification. Always specify model and serial numbers when communicating with the factory. The only warranty applicable is our standard written warranty. We make no other warranty, expressed or implied.