General...................................................................................... 5
Certification.............................................................................. 5
Safety......................................................................................... 5
Inspection........................................................................... 9
Ductwork.................................................................................10
Duct flanges......................................................................11
Coil installation................................................................. 12
Filters....................................................................................... 16
Side return........................................................................ 16
Gas piping............................................................................... 17
Gas safety..........................................................................17
Electric power......................................................................... 19
Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low
Contents
Vent system............................................................................ 22
Vent connections..............................................................22
Venting.............................................................................. 23
...................................................................................... 25
procedure....................................................................26
............................................................................................29
rate.....................................................................................30
Airflow settings.................................................................31
Safety controls........................................................................34
Limit controls.................................................................... 35
Troubleshooting.....................................................................35
Wiring diagram...................................................................... 39
Start-up sheet.........................................................................41
Johnson Controls Ducted Systems
3
NOx)