UDZ Venting Instructions
Table Of Contents
- VENTING INSTRUCTIONS FOR UNIT HEATERS (MODEL UBZ: SEPARATED-COMBUSTION BLOWER TYPE AND MODEL UDZ: SEPARATED-COMBUSTION FAN TYPE)
- GENERAL INFORMATION
- INSTALLATION
- APPENDIX: INSTRUCTIONS FOR ATTACHING DOUBLE-WALL TYPE B VENT PIPE TO SINGLE-WALL PIPE
- FIGURES
- Figure 1. Typical Combustion Air Inlet and Venter Outlet Connections
- Figure 2. Concentric Adapter Box
- Figure 3. Concentric Adapter Box Dimensions (Refer to Table 4)
- Figure 4. Concentric Adapter Box Connections (Refer to Table 4)
- Figure 5. Vent Terminal Options
- Figure 6. Option CC2 Components
- Figure 7. Option CC2 Installation
- Figure 8. Concentric Adapter Box Brackets
- Figure 9. Combustion Air Pipe Installation
- Figure 10. Combustion Air Pipe Through Roof
- Figure 11. Combustion Air Inlet and Vent Terminal
- Figure 12. Option CC6 Components
- Figure 13. Option CC6 Installation
- TABLES
- Table 1. Combustion Air Inlet and Venter Outlet Connection Sizes
- Table 2. Concentric (Outdoor) Pipe Sizes
- Table 3. Diameter and Length of Pipe from Heater to Concentric Adapter Box
- Table 4. Vent Pipe Opening Diameter
- Table 5. Concentric Adapter Box Vent Pipe Sizes
- Table 6. Vertical Vent Terminal/Combustion Air Package (Option CC2) Components
- Table 7. Minimum Spacing Between Center Lines of Vertical Vent Pipes
- Table 8. Horizontal Vent Terminal/Combustion Air Package (Option CC6) Components
- Table 9. Minimum Clearance Requirements for Horizontal Vent Termination Location
8
CP-UBZ-UDZ-VENT (02-21) 1034632-0
Table 4. Vent Pipe Opening Diameter
Vent Terminal Configuration Option
Unit Size
030–125 (5-Inch Vent Pipe)* 150–400 (5-Inch Vent Pipe)*
Diameter (Feet (Meters))
Vertical CC2 4-21/32
(
118
)
5-21/32
(
144
)
Horizontal CC6 4-1/16 (103) 5-1/16 (129)
*See Figure 3.
INSTALLATION—CONTINUED
Concentric Adapter Box Connections—Continued
Table 5. Concentric Adapter Box Vent Pipe Sizes
Unit Size
Dimension*
A B C D
Diameter (Inches (mm))
030, 045, 060**
4 (102) 6 (152) 4 (102)
075, 100, 125
4 (102) 6 (152) 4 (102)
150, 175, 200, 225, 250
5 (127)
8 (203)
6 (152)
*See Figure 4.
**Using 4-inch vent pipe for combustion air runs from heater to concentric adapter box.
Vent Terminal Options
Vent terminal options CC2 (vertical vent configuration) and CC6 (horizontal vent configuration) are shown in Figure
5. Both options are applicable to residential and commercial/industrial installations
Figure 5. Vent Terminal Options
Vertical Vent Terminal (Option CC2) Installation
• Field-supplied components required for installation of the vertical vent kit are as follows:
• Vent and combustion air piping in accordance with Table 3
• Tapered vent pipe diameter reducers and/or increasers, as required
• Thimble (not required if wall is of non-combustible construction)
• Flashing
• Sheet metal screws, tape, and sealant, as required
• Factory-supplied components for installation of the vertical vent kit are listed in Table 6 and shown in Figure 6.
VERTICAL (OPTION CC2)
HORIZONTAL (OPTION CC6)
Field-supplied
requirements: