Reznor X Unit Installation Manual - Manual (Page 2)

Form I-X, P/N 150491 R10, Page 2
1.2 General
Installation
Information
Definitions of HAZARD INTENSITY LEVELS used in this Manual
1. DANGER: Failure to comply will result in severe personal injury or
death and/or property damage.
2. WARNING: Failure to comply could result in severe personal injury
or death and/or property damage.
3. CAUTION: Failure to comply could result in minor personal injury
and/or property damage.
WARNING
Gas-fired appliances are not designed for use in hazardous
atmospheres containing flammable vapors or combustible dust, in
atmospheres containing chlorinated or halogenated hydrocarbons,
or in applications with airborne silicone substances. See Hazard
Levels, above.
1.1 Hazard Labels and Notices
There are warning labels on the unit and throughout this manual. For your safety, read
the definitions below and comply with all boxes labeled CAUTION, WARNING, and
DANGER during installation, operation, maintenance, and service of this heater.
1.0 General
Installation should be done by a qualified agency in accordance with the instructions
in this manual and in compliance with all codes and requirements of authorities having
jurisdiction.
The instructions in this manual apply to a Model X duct furnace.
1.0 General ................................................................ 2
1.1 Hazard Labels and Notices .................................. 2
1.2 General Installation Information ........................... 2
1.3 Warranty ............................................................... 3
1.4 Installation Codes ................................................. 3
2.0 Furnace Location ................................................ 3
2.1 General Recommendations.................................. 3
2.2 Combustion Air Requirements for a Heater
Located in a Confined Space .............................. 4
3.0 Uncrating and Preparation ................................. 4
3.1 Uncrating and Inspecting...................................... 4
3.2 Preparing the Furnace for Installation .................. 5
4.0 Dimensions and Clearances .............................. 6
4.1 Dimensions........................................................... 6
4.2 Clearances .......................................................... 6
5.0 Suspending or Mounting the Furnace .............. 7
5.1 Weight .................................................................. 7
5.2 Suspending the Furnace ...................................... 7
5.3 Mounting the Furnace .......................................... 7
6.0 Mechanical .......................................................... 7
6.1 Gas Piping and Pressures.................................... 7
6.2 Venting ................................................................ 9
6.3 Duct Furnace Airflow .......................................... 11
7.0 Electrical Supply and Wiring ........................... 16
7.1 General .............................................................. 16
7.2 Supply Voltage and Wiring ................................. 16
7.3 Thermostat and Control Wiring .......................... 16
7.4 Typical Wiring Diagrams ..................................... 17
8.0 Controls ............................................................. 19
8.1 Fan Control......................................................... 19
8.2 Limit Control ....................................................... 19
8.3 Blocked Vent Switch ........................................... 19
8.4 Gas Controls ...................................................... 19
8.5 Pilot and Ignition Systems .................................. 21
8.6 Burner Carryover System and Air Adjustment .... 22
9.0 Commissioning and Startup ............................ 23
9.1 Check the installation prior to startup ................. 23
9.2 Startup ............................................................... 23
9.3 Check installation after startup ........................... 23
10.0 Maintenance and Service ............................... 24
10.1 Maintenance Schedule .................................... 24
10.2 Maintenance Procedures ................................. 25
10.3 Troubleshooting ................................................ 27
APPENDIX ............................................................... 28
Converting Model X Duct Furnace for Lower
Temperature Rise / Higher CFM Application ...... 28
Wiring Diagrams for Match-Lit Pilot Discontinued
in 2003 ............................................................... 30
INDEX ....................................................................... 31
INSTALLATION RECORD ...................................... 32
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