Reznor PDH Option - Installation - Venting Instructions - Manual

Form I-PDH-V, P/N 211409R2, Page 1
Applies to: PREEVA ® Indoor, Power-Vented
Heater Model PDH
Venting Instructions
Form I-PDH-V
General
Venting
Requirements
Verify that the label near the
vent outlet on the heater
matches this label.
Power-Vent
Indoor
Model PDH
AG
EN
CY PROCE
SS
ST
A
R
T-
U
P
PR
ODUCT
C
U
ST
O
M
ER
WAR
RA
NT
Y
CO
NVERGENT
QU
ALITY SYSTE
M
CQS CQS
This manual applies only to venting instructions and must be used with the Model PDH
installation manual, Form I-PDH/SDH/PEH/SHH/PXH. Both manuals are shipped with
the heater. If either manual is missing, contact your distributor before beginning instal-
lation. The venting instructions in this manual apply only to PREEVA ® Model PDH.
Model PDH heaters are certified as Category III appliances.
WARNING
Each heater requires its own individual vent pipe run and vent cap.
Manifolding of vent runs can cause recirculation of combustion
products into the building. Failure to comply could result in severe
personal injury or death and/or property damage.
Venting must be in accordance with local codes and the National Fuel Gas Code NFPA
54 / ANSI Z223.1 or CAN/CSA B149.1 Natural Gas and Propane Installation Code.
Local requirements supersede national requirements.
This power-vented heater is designed to operate safely and efficiently with either a
horizontal or vertical vent. Comply with the specific requirements and instructions.
If this heater is replacing an existing heater, be sure that the vent is sized properly for
the heater being installed and that the existing vent is in good condition. A properly
sized vent system is required for safe operation of the heater. An improperly sized vent
system can cause unsafe conditions and/or create condensation. Do not vent into an
existing gravity vent or chimney.
Installation should be done by a qualified agency in accordance with these instructions.
The qualified service agency installing this system is responsible for the installation.
1. Type of Vent Pipe A commercial/industrial installation may have either a horizontal or a vertical vent run
using one of the types of vent pipe listed.
Horizontal
Vent Run
•
Vent pipe approved to UL Std 1738 for a Category III appliance,
OR
•
Appropriately sealed 26-gauge or heavier galvanized steel or
equivalent single-wall pipe
Vertical
Vent Run
•
Vent pipe approved to UL Std 1738 for a Category III appliance,
OR
•
Appropriately sealed 26-gauge or heavier galvanized steel or
equivalent single-wall pipe
OR, if at least 75% of the equivalent length of the vent run is vertical
Vent Terminal
Section
•
Both horizontal and vertical vent terminal section must be
double-wall (Type B) vent pipe
201214
POWER
VENT