Installation - Venting Instructions Owner manual

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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

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 certied 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 efciently with either a

horizontal or vertical vent. Comply with the specic 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 qualied agency in accordance with these instructions.

The qualied 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,

• 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,

• 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

Summary of content (8 pages)

PAGE 1
Form I-PDH-V Applies to: M TY N P General T UA E RO LITY SYST RA DU CT WA R Q C U S TO M E R CQS STA RT-UP AG C S PROC CY E EN VERGE S N ON Power-Vent Indoor Model PDH 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 installation.
PAGE 2
Venting Requirements (cont’d) 2. Vent Pipe Diameter and Length Vent pipe diameters and maximum vent lengths in TABLE 1 apply to either a horizontal or a vertical vent. Add all straight sections and equivalent lengths for elbows. The total combined length must not exceed the Maximum Vent Length. TABLE 1 - Vent Pipe Diameter and Length for Horizontal or Vertical Vent • Use only one diameter of vent pipe on an installation. • Minimum vent length is 3 feet (1M).
PAGE 3
4. Vent System Joints and Sealing Vent system joints depend on the type of pipe being used (See “Type of Vent Pipe”, Requirement No. 1, page 2). • If using single wall, 26-gauge or heavier galvanized pipe, secure slip-fit connections using sheetmetal screws or rivets. Seal all joints and seams of singlewall vent pipe inside the building with aluminum tape or silicone sealant. • If using Category III vent pipe, follow the pipe manufacturer’s instructions for joining pipe sections.
PAGE 4
Venting Requirements (cont’d) FIGURE 2 - Horizontal Vent Terminal (NOTE: Read all measurements; drawing is not proportional.
PAGE 5
ADDENDUM FIGURE 4 - Attaching Double-Wall (Type B) Pipe to Single-Wall Pipe Instructions for Attaching Double-Wall Vent Pipe (Type B) FIGURE 4 - STEP 1 On the single-wall pipe (where illustrated), place a continual 1/4 inch bead of silicone sealant around the circumference). Do STEP 2 immediately following STEP 1.
PAGE 6
ADDENDUM (cont’d) FIGURE 5 - Attaching Double-Wall (Type B) Pipe to a Vent Cap Instructions for Attaching Double-Wall Vent Pipe (Type B) (cont’d) FIGURE 5 - STEP 1 Place a continual 3/8” bead of silicone sealant around the circumference of the vent cap collar. This will prevent any water inside the vent cap from running down the double-wall pipe. Do STEP 2 immediately following STEP 1. FIGURE 5 - STEP 2 Insert the collar on the vent cap inside the inner wall of the double-wall pipe.
PAGE 7
FIGURE 6 - Attaching Double-Wall (Type B) Vent Pipe to the Heater NOTE: Double-wall (Type B) vent pipe may only be used if at least 75% of the equivalent length of the vent run is vertical. See vent pipe length on page 2. FIGURE 6 - STEP 1 Place a continual 1/4” bead of silicone sealant around the circumference of the venter outlet collar. Do STEP 2 immediately after STEP 1. FIGURE 6 - STEP 2 Slide the double-wall pipe over the collar so that the collar is inside the inner pipe.
PAGE 8
www.RezSpec.com (800) 695-1901 © 201 Reznor, LLC. All rights reserved. Trademark Notes: Reznor®, PREEVA® and TCORE2® are registered in at least the Untied States. All other trademarks are the property of their respective owners. Form I-PDH-V, PN 211409R2, Page 8 05/14 (Serial No. Date Code BNE) Form I-PDH-V (Version .