Desa CHDV34(N/P)(A) Owner's Operation And Installation Manual

Contents

16105456DIRECT-VENT FIREPLACE (NATURAL/PROPANE)CHDV34(N/P)(A)INSTALLING OPTIONALBLOWER ACCESSORYIMPORTANT: For clarity, gas valve assem-bly and grate/burner assembly are not shownin Figures 30 through 33, page 17. They will,however, be in your fireplace when you areinstalling the blower. Also for clarity thefirebox is shown with dotted lines.1. Open lower louver panel or remove foreasier access.2. Place the blower against the lower rearwall of firebox outer wrapper with theexhaust port directed upward. Align theholes in the top mounting tabs ofblower with holes in wall of wrapper(see Figure 30, page 17). Using the twoscrews provided, mount blower andtighten screws securely.Note: For CDA3620T, make sure thethermal switch is comfortably betweenthe back of the firebox and the bloweras shown in Figure 31, page 17.3. Be sure to securely attach all wire ter-minals to terminals on blower motor(and thermal switch where applicable)and that the screw retaining the greenground wire is tight.4. Remove screws securing the switchplate to the bottom of the firebox andset aside.5. Place speed control against back of thisplate and push the plastic control shaftthrough opening (see Figure 32, page 17).6. While supporting speed control, secure con-trol shaft with lock nut by pushing and turn-ing lock nut with pliers clockwise until tightagainst the plate. Place control knob pro-vided onto shaft (see Figure 32, page 17).7. Replace plate containing the switch andtighten screws securely.NOTICE: If installing blower in anexisting fireplace with gas con-nections, shut off gas supply anddisconnect heater from gas sup-ply. Contact a qualified serviceperson to do this.CHECK GAS TYPEUse proper gas type for the fireplace unityou are installing. If you have conflictinggas types, do not install fireplace. See re-tailer where you purchased the fireplace forproper fireplace according to your gas type.FIREPLACEINSTALLATIONNOTICE: This heater is intendedfor use as supplemental heat. Usethis heater along with your pri-mary heating system. Do not in-stall this heater as your primaryheat source. If you have a centralheating system, you may runsystem’s circulating blower whileusing heater. This will help circu-late the heat throughout thehouse. In the event of a poweroutage, you can use this heateras your primary heat source.NOTICE: A qualified service per-son must install fireplace. Followall local codes.CAUTION: This fireplace cre-ates warm air currents. These cur-rents move heat to wall surfacesnext to fireplace. Installing fire-place next to vinyl or cloth wallcoverings or operating fireplacewhere impurities (such as to-bacco smoke, aromatic candles,cleaning fluids, oil or kerosenelamps, etc.) in the air exist, maydiscolor walls.Note: Your fireplace is designed to be usedin zero clearance installations. Wall or fram-ing material can be placed directly againstany exterior surface on the rear, sides, or topof your fireplace, except where stand-offspacers are integrally attached. If stand-offspacers are attached to your fireplace, thesespacers can be placed directly against wallor framing material. See framing details onpage 4.Place the fireplace into position and shimwith noncombustible material if needed.Nail the side flanges to the framing to securethe unit in place. There are two floor brack-ets included with each unit. Use these as analternative method of securing the fireplace.IMPORTANT: Make sure fireplace is levelbefore securing. If fireplace is not level itwill not work properly.Attaching Thermal Switch toCDA3620T ThermostaticallyControlled BlowerWhen installing the CDA3620T thermo-statically controlled blower accessory, youmust first secure the thermal switch to theblower.1. Remove the two hex head screws on theblower assembly as shown in Figure 29.2. Place the green wire between the bot-tom hole on the thermal switch bracketand the bottom hole on the blower as-sembly. Insert one of the hex screwsinto all three pieces and tighten.3. Insert the top screw through the ther-mal switch bracket and into the blowerassembly. Tighten screw.4. Connect the blue wire on the blowerassembly to the right side of the ther-mal switch.5. Connect the black wire to the left sideof the thermal switch.Installing GA3750/CDA3620TBlowersFigure 29 - Attaching Thermal Switch to CDA3620T Thermostatically ControlledBlower AccessoryBlower AssemblyBlue WireGreen WireBlack WireWhite WireHex HeadScrewsThermal Switchwith Bracket