Owner`s manual
You must read and understand this manual prior to installation, operation or
troubleshooting this appliance. Please retain this owner’s manual for future reference
and maintenance.
NOTICE
Table of Contents
L42DF* Indoor Gas Fireplace
XG0181 - 112811.1
.................................................................................3
Before you Start .................................................................................4
Installation Checklist ...............................................................................4
Installation Overview and Product Dimensions .....................5
Framing the Fireplace .......................................................6 - 8
Clearances ............................................................................7
Installing the Standoffs ..........................................................7
Installing the Nailing Flange Extension ..................................7
Framing the Heat Shield ........................................................8
The Direct Vent System ..................................................9 - 17
Converting from Top Vent to Rear Vent .............................9
Installing a Roof mounted Termination .....................10 - 11
▪ Section 3-2-1: Venting Layout .................................................10 - 11
▪ Roof mounted Terminations
Standard Top Vent (no elbows or offsets) ....................................10
Top Vent (two elbows one offset) ................................................10
Top Vent (multi-elbows and offsets) ............................................10
Standard Roof Vent (one elbows no offsets) .............................. 11
Installing a Wall mounted Termination ......................12 - 17
▪ Standard PTO Installation ........................................................12
▪ Pre-installed MSR Frame .........................................................12
▪ Pre-installed BSR Frame ..........................................................12
▪ Installing MOSR Frame ............................................................12
▪ Installing VSS Termination Shield .............................................12
▪ Installing PTKOG Heat Guard ..................................................12
▪ Section 3-3-1: Venting Layout .................................................13- 16
▪ Top Vent, Wall mounted Graph, L42DF* ...................................13
▪ Top Vent, Wall mounted termination (one elbow) .....................13
▪ Top Vent, Wall mounted termination (multi elbow) ...................13
Top Vent, Wall mounted termination (retracted) ......................14
▪ Top Vent, Wall mounted termination (45° corner) ....................15
▪ Top Vent, Wall mounted termination (-45° corner) ..................15
▪ Rear Vent, Wall mounted Termination Graph ...........................16
▪ Standard Rear Vent, (no elbows or offsets) ..............................16
▪ Rear Vent, Wall mounted termination (two elbows) ..................16
▪ Section 3-3-2: Venting Components .....................................................17
▪ Section 3-3-3: Heat Shields ..............................................................18
▪ Installing a RHS8 Wall Mounted Heat Shield ...........................18
▪ Installing a RHS101 Wall Mounted Heat Shield .......................18
Wiring ........................................................................19 - 20
▪ SIT - Nova 820 gas control and pilot .....................................19
▪ SIT - Proame gas control and pilot ......................................19
▪ Installing remote On/Off wall switch ......................................20
▪ Installing HFK Fan Kit ............................................................20
▪ Top / Rear Intake Air Adjustment ...........................................20
Installing the Gas Line .........................................................21
Fuel Conversion ...............................................................21
Gas Pressure ...................................................................21
Gas Connection ...............................................................21
Finishing ..............................................................................22
▪ Finishing around the replace ......................................................22
▪ Mantels and Surrounds ................................................................22
Installing and Removing the Door .......................................23
Installing the Accessories ....................................................24
▪ Installing the Firestones ................................................................24
▪ Installing the Optional Burner Cover Kit .......................................24
Operation ......................................................................25 - 26
▪ Start-up Sequence with SIT Nova 820 Continuous Pilot ..............25
▪ Start-up Sequence SIT Proame Gas valve .................................26
........................................................................27 - 29
▪ General ...............................................................................27
▪ Cleaning ...............................................................................27
▪ SIT Nova 820 Hi-Lo Burner Adjustment........................................27
▪ SIT Proame Pilot Burner Adjustment ..........................................27
▪ Troubleshooting ...........................................................................28
SIT- Nova 820 Gas Control Valve .............................................28
SIT Proame Gas Control Valve ...............................................28
▪ Replacement Parts List .................................................................29
A. Termination Locations ...............................................................30
B. Warranty ...............................................................................31
C. State of Massachusetts. ...........................................................32










