Reznor UEAS Unit Installation Manual User Manual
Page 2
1.0 General ...................................................2-4
1.1 Hazard Labels and Notices ........................ 2
1.2 General Information ................................... 3
1.3 Warranty..................................................... 3
1.4 Installation Codes ...................................... 3
2.0 Unit Heater Location ............................4-5
3.0 Receiving, Uncrating, and Preparing
for Installation .......................................5-6
4.0 Dimensions and Clearances ................6-7
4.1 Dimensions ................................................ 6
4.2 Clearances ................................................. 7
5.0 High Altitude Operation ...........................7
6.0 Hanging the Heater...................................7
7.0 Mechanical ...........................................8-26
7.1 Gas Piping and Pressure ........................... 8
7.2 Venting and Combustion Air .................... 12
7.3 Condensate Drain System ....................... 25
8.0 Electrical and Wiring .........................26-28
8.1 Electrical Supply ...................................... 26
8.2 24V Control Wiring Connections .............. 27
8.3 Typical Wiring Diagram ............................ 28
9.0 Controls ..............................................29-30
10.0 Ignition System ................................30-33
11.0 Commissioning and Startup ...........33-35
11.1 Check the Installation Prior to Startup .... 33
11.2 Heater Startup ........................................ 33
11.3 Check Installation After Startup .............. 34
12.0 Maintenance and Service................35-42
12.1 Maintenance Schedule .......................... 35
12.2 Maintenance Procedures ....................... 35
12.3 Troubleshooting .................................... 40
APPENDIX ................................................42-43
INDEX.............................................................43
INSTALLATION RECORD ............................44
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, WARN-
ING, 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.
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.
WARNING
Should overheating occur, or the gas supply fail to shut
off, shut off the manual gas valve to the appliance before
shutting off the electrical supply.
1.0 General
Table of Contents
Form I-UEAS, Page 2