Desa VK42P SERIES Owner's Operation And Installation Manual

Also see for K42N SERIES: OWNER'S OPERATION AND INSTALLATION MANUAL OWNER'S OPERATION AND INSTALLATION MANUAL

www.desatech.com 111921-01E16FIREPLACE INSTALLATIONContinuedFigure 29 - Blower Wiring Diagram for Thermostat-ControlledModels4. Be certain that all wire terminals are securely attached to ter-minals on blower motor and thermal switch, and that the screwfor the thermodisc bracket and green ground wire is tight.5. Mount the speed control box against the mounting plate providedin the lower fireplace cavity by placing the plastic control shaftforward through the round hole (see Figure 26, page 15).6. While supporting speed control, secure control shaft with locknut by pushing and turning lock nut with pliers clockwise untilit is tight against mounting plate. Place control knob providedon shaft (see Figure 26, page 15).7. Check to make sure that the power cord is completely clear ofthe blower wheel and that there are no other foreign objects inblower wheel. Also double check all wire leads and make surewire routing is not pinched or in a precarious position. Correctaccordingly.8. Turn on power to duplex outlet if previously turned off per thewarning in column 2, page 14.9. Plug in blower power cord to duplex outlet.10. The blower will only run when the speed control knob is in theON position and the thermal switch senses temperature after thefireplace begins to heat up. The blower speed can be adjusted byrotating the control knob. To turn off, turn knob fully counterclock-wise until it clicks off. If the blower is ON and has been runningwith the fireplace operating, the blower will continue to run for ashort time after the fireplace has been turned off. As the thermalswitch cools down, the blower shuts down automatically.11. Peel off the backing paper and stick the supplied wiring diagramdecal on the firebox bottom approximately 12" in front of theblower (see Figure 27, page 15).blower Wiring DiagramCAUtION: Label all wires prior to disconnectionwhen servicing controls. Wiring errors can cause im-proper and dangerous operation. Verify proper opera-tion after servicing.INStALLING GAS PIPING tO FIREPLACELOCAtIONWARNING: A qualified service person must connectfireplace to gas supply. Follow all local codes.CAUtION: For propane/LP units, never connectfireplace directly to the propane/LP supply. this heaterrequires an external regulator (not supplied). Installthe external regulator between the fireplace and pro-pane/LP supply.Installation Items NeededBefore installing fireplace, make sure you have the items listed below.• external regulator (supplied by installer)• piping (check local codes)• sealant (resistant to propane/LP gas)• equipment shutoff valve *• test gauge connection *• sediment trap• tee joint• pipe wrench• approved flexible gas line with gas connector (if allowed by localcodes)* A CSA design-certified equipment shutoff valve with 1/8" NPT tapis an acceptable alternative to test gauge connection. Purchase theCSA design-certified equipment shutoff valve from your retailer.For propane/LP connection only, the installer must supply anexternal regulator. The external regulator will reduce incominggas pressure. You must reduce incoming gas pressure to between11" and 14" of water. If you do not reduce incoming gas pressure,fireplace regulator damage could occur. Install external regulatorwith the vent pointing down as shown in Figure 30. Pointing thevent down protects it from freezing rain or sleet.CAUtION: Use only new, black iron or steel pipe.Internally-tinned copper tubing may be used in certainareas. Check your local codes. Use pipe of 1/2" diameteror greater to allow proper gas volume to fireplace. Ifpipe is too small, undue loss of volume will occur.Figure 30 - External Regulator with Vent Pointing Down(Propane/LP Only)Propane/LPSupply TankExternalRegulatorVentPointingDownBlueVariableFan Switch Fan Switch(N.O.)GreenWhiteOn110/115V.A.C.BlowerMotorBlackOff 12 Black