Reznor RDF Unit Installation Manual User Manual
Page 2
I-RDF, PN148384R5, Page 2
WARNING: On makeup air heaters which also recirculate room air, outside ventilation
air must be provided in accordance with the information shown on the heater
nameplate.
Recirculation of room air may be hazardous in the presence of:
(a) Flammable solids, liquids, and gases;
(b) Explosive materials; or
(c) Substances which may become toxic when exposed to heat.
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/Requirements 3
4.1 Clearances ................................... 4
4.2 Dimensions ................................. 5
5.0 Mounting ...........................................5
Supports ...................................... 6
5.4 Mounting on a Roof Curb ............. 6
6.0 Mechanical ........................................9
6.1 Gas Piping and Pressures ........... 9
6.2 Unit Inlet Air .................................11
6.3 Supply Air Discharge .................. 15
6.4 Blowers, Drives, and Motors ...... 16
7.0 Electrical Supply and Wiring .........17
8.0 Controls ...........................................19
9.0 Check-Test Start .............................22
Before Startup ................................. 22
Startup ............................................. 23
After Startup ..................................... 25
APPENDIX .............................................26
Technical Data ................................. 26
REFERENCES .......................................26
INDEX .....................................................27
INSTALLATION RECORD ....................28
TABLE OF CONTENTS