Reznor RXH (Outdoor PreevA) Unit Installation Manual - Manual (Page 3)

Form I-RDH/REH/RHH/RXH (12-14), P/N 215210 R14, Page 3
WARNING
Model RDH and Model RHH 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, page 2.
1.3 General
Installation
Information
Model RDH and Model RHH are listed by ETL Testing Agency as conforming to ANSI
Standards and certified to CSA Standards. Models REH and RXH are listed by ETL
Testing Agency as conforming to CSA and UL Standards. All models are designed for
commercial/industrial use.
The type of gas, the firing rate, and the electrical characteristics are on the unit rating
plate. Check the rating plate to determine if the unit is appropriate for the intended
installation.
WARNING
Installation of this system 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 having
jurisdiction.
Control Manual - An installation of Model RDH, REH, RHH, or RXH with a digital
controller requires a control instruction manual. The manual is shipped in the literature
bag with this booklet.
•
Orders with control Option DG1, DG2, DG5, or DG6 require Form
CP-PREEVA-DG, P/N 254027.
•
Orders with control Option D12B, D12C, D12D, D12E, or D12G require Form
CP-PREEVA-D12 B/C/D/E/F/G, P/N 235267
NOTE: All systems with reheat Option AU7 have an Option D12 digital control.
1.4 Warranty Refer to the limited warranty information on the Warranty Form in the “Literature Bag”.
Warranty is void if ...
a. Heaters are used in atmospheres containing flammable vapors or atmospheres
containing chlorinated or halogenated hydrocarbons or any contaminant (silicone,
aluminum oxide, etc.) that adheres to the spark ignition flame sensing probe.
b. Wiring is not in accordance with the diagram furnished with the heater.
c. Unit is installed without proper clearance to combustible materials or without
proper ventilation and air for combustion.
d. Air throughput is not adjusted within the range specified on the rating plate.
e. Product is not installed in accordance with these instructions or local codes.
1.5 Installation Codes All installations must be in accordance with local building codes.
Gas-fired Models RDH and RHH - In the absence of local codes, in the United States
the unit must be installed in accordance with the National Fuel Gas Code NFPA54/
ANSI Z223.1 (latest edition). A Canadian installation must be in accordance with the
CSA B149.1 Natural Gas and Propane Installation Code. Both codes are available
from CSA Information Services, 1-800-463-6727. Local authorities having jurisdiction
should be consulted before installation is made to verify local codes and installation
procedure requirements.
Commercial Makeup Air Installations - These gas-fired products are certified by
ANSI Z83 family of standards governing the safe usage of heating equipment in the
industrial/commercial marketplace. This includes using the heaters in makeup air
applications to supply corridor pressurization in commercial buildings such as office
structures and apartment complexes.
This product may be used for all makeup air applications except one or two family
dwellings.
All Installations - Clearances from the heater and vent to combustible construction
or material in storage must conform with the National Fuel Gas Code NFPA54/ANSI
Z223.1 (latest edition) pertaining to gas-burning devices, and such material must not
attain a temperature over 160°F by continued operation of the heater.