Reznor OH Unit Installation Manual - Manual (Page 2)

Form I-OH, PN 120390 R5, Page 2
WARNING: This appliance is not designed for use in hazard-
ous atmospheres containing flammable vapors or combus-
tible dust, or atmospheres containing chlorinated or haloge-
nated hydrocarbons.
1. 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 hav-
ing jurisdiction. The instructions in this manual apply to Reznor Model OH, Oil-Fired
Unit Heater. Model OH has a propeller fan for air delivery and requires a vent with a
barometric draft regulator.
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.
Definitions of Hazard Intensity Levels in this Manual
HAZARD INTENSITY LEVELS
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.
1. General .......................................................... 2
1.1 Hazard Labels and Notices ............................ 2
1.2 General Information ........................................ 3
1.3 Warranty .......................................................... 3
1.4 Installation Codes ........................................... 3
2. Location ........................................................ 3
2.1 Arrangement .................................................... 3
2.2 Throw ............................................................... 4
3. Receiving, Uncrating, and Moving .............. 4
4. Clearances and Dimensions ........................ 4
4.1 Clearances ....................................................... 4
4.2 Dimensions ..................................................... 5
5. Suspension or Mounting .............................. 5
5.1 Weight .............................................................. 5
5.2 Hanging the Heater ......................................... 5
5.3 Mounting the Heater ....................................... 6
6. Mechanical .................................................... 6
6.1 Fuel Tank and Supply Lines........................... 6
6.2 Venting and Combustion Air .........................11
7. Electrical Supply and Connections ........... 13
7.1 General .......................................................... 13
7.2 Supply and Line Wiring ................................ 13
7.3 Wiring Diagrams ........................................... 14
7.4 Major Components ....................................... 15
7.5 Control Wiring ............................................... 17
8. Commissioning and Startup ..................... 17
8.1 Checklist Prior to Startup ............................ 17
8.2 Check-Test-Start (Operating Procedure) .... 18
9. Maintenance and Service ........................... 20
9.1 Maintenance Requirements ......................... 20
9.2 Maintenance Procedures ............................. 20
9.3 Troubleshooting ............................................ 24
INDEX ............................................................... 27
Table of Contents