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1 hazard labels and notices – Reznor ADFH Unit Installation Manual User Manual

Page 2

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Form I-ADF, Page 2

WARNING: Improper installation, adjustment, alteration,

service, or maintenance can cause property damage,

injury or death. Read the installation, operation, and

maintenance instructions thoroughly before installing

or servicing this equipment.

WARNING: Gas-fired appliances are not designed for

use in hazardous atmospheres containing flammable

vapors or combustible dust, or atmospheres containing

chlorinated or halogenated hydrocarbons. See Hazard

Levels above.

1.0 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.

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.

Hazard Intensity

Levels Apply to

Warnings throughout

this Manual

1.0 General ......................................................... 2

1.1 Hazard Labels and Notices .............................2

1.2 General Description ........................................3

1.3 Warranty ...........................................................3

1.4 Installation Codes ............................................3

2.0 Location ....................................................... 3
3.0 Uncrating and Preparation ......................... 4

3.1 Uncrating and Inspecting ................................4

3.2 Preparing for Installation ................................4

4.0. Clearances and Dimensions .................... 4

4.1 Clearances to Combustibles ..........................4

4.2 Dimensions ......................................................4

5. Mounting ....................................................... 7

5.1 Weights .............................................................7

5.2 Rigging .............................................................7

5.3 Mounting on Field-Supplied Supports ..........7

5.4 Mounting on a Roof Curb ................................8

6.0 Mechanical ................................................... 9

6.1 Gas Piping and Pressures ..............................9

6.2 Unit Inlet Air ...................................................11

6.3 Supply Air Discharge ....................................18

6.4 Blowers, Drives, and Blower Motors ...........19

7.0 Electrical and Wiring................................. 19

7.1 General ...........................................................19

7.2 Supply Wiring .................................................19

7.3 Control Wiring ...............................................20

8.0 Controls ..................................................... 21
9.0 Commissioning and Startup .................... 22

9.1 Checks Before Startup .................................22

9.2 Startup ............................................................24

9.3 Startup for Continuous Operation ...............26

Index ................................................................. 27

References ....................................................... 27

INSTALLATION RECORD ................................ 28

Table of Contents

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