Reznor B Unit Installation Manual - Manual (Page 2)

Form I-F/B, P/N 98126 R21, Page 2
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. General 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
7. Electrical Supply and Wiring ................ 23-29
7.1 General .......................................................... 23
7.2 Supply Voltage and Wiring ........................... 23
7.3 Control Wiring ............................................... 24
7.4 Typical Wiring Diagrams .............................. 26
8. Controls .................................................. 30-31
8.1 Fan Control .................................................... 30
8.2 Blocked Vent Switch ..................................... 30
8.3 Limit Control ................................................. 30
8.4 Gas Valve ....................................................... 30
8.5 Pilot and Ignition Systems ........................... 31
8.6 Burner Air Adjustment.................................. 31
9. Commissioning and Start-Up .................... 32
9.1 Check the installation prior to start-up: ..... 32
9.2 Start-Up ......................................................... 32
9.3 Check installation after start-up: ................. 32
10. Maintenance and Service .................... 33-38
10.1 Maintenance Schedule .............................. 33
10.2 Maintenance Procedures ........................... 33
10.3 Troubleshooting .......................................... 38
INDEX ............................................................... 39
INSTALLATION RECORD ............................... 40
1. General ....................................................... 2-3
1.1 Hazard Labels and Notices ............................ 2
1.2 General Installation Information .................... 3
1.3 Warranty .......................................................... 3
1.4 Installation Codes ........................................... 3
2. Unit Heater Location .................................. 3-4
2.1 General Recommendations ........................... 3
2.2 Combustion Air Requirements for a Heater
Located in a Confined Space ......................... 4
3. Uncrating and Preparation ........................ 4-8
3.1 Uncrating and Inspecting ............................... 4
3.2 Preparing the Heater for Installation ............. 4
4. Clearances and Dimensions ................... 8-11
4.1 Clearances ....................................................... 8
4.2 Dimensions ..................................................... 9
5. Hanging the Heater ................................ 11-13
5.1 Weights ...........................................................11
5.2 Lifting and Suspending ................................11
6. Mechanical ............................................. 13-23
6.1 Gas Piping and Pressures ........................... 13
6.2 Venting ........................................................... 16
6.3 Inlet Air - Blower Model B ............................ 19
6.4 Unit Discharge .............................................. 20
6.5 Fan, Blower, and Drive ................................ 22
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