www.desatech.com 108117-01K1412. Reattach fireplace floor assembly with screwsremoved in step 3 of Removing FireplaceScreen and Floor Assembly, page 9.Note: Dis-card the remaining hardware items. After as-sembly, make sure all wires are completelyclear of blower wheel.13. Install logs (see Installing Logs, pages 23through 25) and fireplace screen (see Install-ing Screen, page 25).WARNING: Failure to positionthe parts in accordance with sup-plied diagrams or failure to useonly parts specifically approvedwith this heater may result in dam-age or personal injury.WARNING: A qualified ser-vice person must connect fire-place to gas supply. Follow alllocal codes.Operating the BlowerLight your gas appliance with the blower off. Af-ter about 15 minutes, turn the blower on to deliverheated air at the top louvers. The blower featuresa variable control which allows you to select thespeed you desire.Note: Periodically check the lou-vers of the firebox and remove any dust, dirt, orother obstructions.INSTALLING THERMOSTATICBLOWER ACCESSORYNOTICE: Shut off gas supplyand disconnect heater from gassupply if installing blower in pre-viously installed fireplace. Con-tact a qualified service personto do this.1. If fireplace screen and floor are still installed,see Removing Fireplace Screen and FloorAssembly, page 9.2. Using screw provided, attach green groundwire from speed control cord to blower hous-ing. Tighten screw securely (see Figure 18).INSTALLATIONContinued3. Place the blower against lower rear wall offirebox outer wrapper with the exhaust portdirected upward. Align the holes in top mount-ing tabs of blower with holes in wall of wrap-per (see Figure 19, page 15). Using two #8screws provided, mount blower and tightenscrews firmly.4. Remove the three screws (do not discard) andcover plate from center of firebox wrapper rearwall. Discard this cover plate (see Figure 18).5. Mount the supplied thermostatic switch andcover assembly into firebox wrapper wall. Dothis by feeding terminal ends of wire harnessinto the hole. Allow wires to fall to bottom offirebox cavity (see Figure 18).6. Using three screws from step 7, attach switchand cover assembly to firebox wrapper rearwall. Tighten screws firmly (see Figure 18).7. Firmly attach red wire from the thermostaticswitch and cover assembly to either of the ter-minals on the blower motor (see Figure 18).8. Firmly attach black wire from speed controlcord to blue wire from thermostatic switch andcover assembly (see Figure 18).9. Firmly attach white wire from speed controlcord to remaining terminal on blower motor(see Figure 18).Figure 18 - Installing Switch and CoverAssembly, and Speed ControlThermostatic Switchand Cover AssemblyBlueWireBlackWireGreenWireWhiteWireSpeed ControlRedWire