4 | Regency ® P33-10 Zero Clearance Direct Vent Gas Fireplace|4table of contentsGas Pipe Pressure Testing ........................................ 33Conversion from NG to LP......................................... 34Optional Brick Panels ................................................ 35Log Set Installation .................................................... 35Standard Flush Door ................................................. 36Optional Wall Thermostat ......................................... 37Wiring Diagrams ....................................................... 38Optional Wall Thermostat Installation ........................ 39Installing the Optional Fan ......................................... 40Vignette faceplate and safety screen Install .............. 41Optional vignette finishing trim .................................. 42Optional Vignette inlay installation ............................. 43Optional finishing trim ................................................ 44Safety screen installation - must be used withOptional louvers......................................................... 45Optional Flush Louvers installation -Used with safety screen # 439-929 ........................... 45Copy of the Lighting Plate Instructions ...................... 46Operating Instructions ............................................... 47Lighting Procedure .................................................... 47Shutdown Procedure ................................................. 47First Fire .................................................................... 47Aeration Adjustment .................................................. 48Normal Operating Sounds of Gas Appliances ........... 48Maintenance Instructions .......................................... 48General Vent Maintenance ........................................ 49Log Replacement ...................................................... 49Thermopile/Thermocouple ........................................ 49Glass Gasket ............................................................. 49Removing Valve ......................................................... 50Installing Valve ........................................................... 50Main Assembly .......................................................... 51Burner & Log Assembly ............................................. 53Vignette faceplate and finishing trim......................... 54Safety screen and louvers ......................................... 55Warranty .................................................................... 59Safety Label ................................................................. 5Unit Dimensions with vignette faceplate andfinishing trim ............................................................... 7Unit Dimensions with vignette andVignette finishing trim .................................................. 8Unit Dimensions with safety screen (#439-929)and Optional louvers.................................................... 8Important Message .................................................... 9Before You Start ........................................................... 9General Safety Information .......................................... 9Installation Checklist .................................................. 10Locating Your Fireplace ............................................. 10Duct System Option................................................... 10Manufactured Mobile Home AdditionalRequirements ............................................................ 10Clearances with vignette faceplate ............................ 11Mantel Leg Clearances with Flush glass ................... 11Combustible Mantels ................................................. 12wall mount On / Off Switch installation ...................... 13Framing and Finishing ............................................... 14Unit Assembly Prior to Installation ............................. 16Venting Introduction ................................................... 16Exterior Vent Termination Locations .......................... 17Regency® Direct Vent flex System ............................ 18Installation Procedures .............................................. 19Rigid Pipe Venting Systems....................................... 204” x 6-5/8” Rigid Pipe Cross Reference Chart ........... 21Rigid Pipe Venting Arrangements ............................. 23Vertical Terminationwith Co-Linear Flex System in a masonry chimney ... 29Venting Arrangements - Vertical Terminations .......... 30Unit installation with Horizontal termination ............... 31Unit installation with Vertical Termination................... 32Gas Line Installation .................................................. 32Pilot Adjustment......................................................... 33High Elevation............................................................ 33