Reznor UBXC - Category I Residential Installations with Dedicated Vent (Model UDXC)

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UBXC-UDXC-IOM (01-24) 1042980-0
INSTALLATION—CONTINUED
Vent Connections for Standard Units—Continued
Category I Residential Installations with Common Vent (Model UDXC)—Continued
Table 16. Maximum Length of Category I Horizontal Connector Pipe
Vertical Vent Height
(Feet (Meters))
With Single-Wall Connector With Double-Wall Connector
Unit Size (MBTUh)
30 45 60 75 100 30 45 60 75 100
Vent Connector Diameter (Inches (mm))
4 (102) 5 (127) 4 (102) 5 (127)
Pipe Length (Feet (Meters))
6 (1.8)
0 (0) 2 (0.6) 3 (0.9) 2 (0.6) 3 (0.9)
7 (2.1)
2 (0.6) 3 (0.9) 3 (0.9) 4 (1.2)
8 (2.4)
3 (0.9) 4 (1.2) 5 (1.5)
10 (3.0)
3 (0.9) 4 (1.2) 5 (1.5) 6 (1.8)
15 (4.6)
3 (0.9) 4 (1.2) 5 (1.5) 6 (1.8) 5 (1.5) 6 (1.8) 7.5 (2.3)
20 (6.1)
3 (0.9) 4 (1.2) 5 (1.5) 6 (1.8) 5 (1.5) 6 (1.8) 7.5 (2.3)
30 (9.1)
3 (0.9) 4 (1.2) 5 (1.5) 6 (1.8) 5 (1.5) 6 (1.8) 7.5 (2.3)
NOTE: For the proper vent connector length and diameter of other appliances connected in common with the unit, refer to the appliance
manufacturer’s instructions or to the National Fuel Gas Code.
Category I Residential Installations with Dedicated Vent (Model UDXC)
Residential installations of model UDXC unit sizes 30–100 may use a Category I dedicated vent. Install the vent as
follows:
1. Select vent pipe and vent connector for Category I vent (see Figure 16). Note that unit sizes 60–100 may use
single- or double-wall vent connector.
2. Determine vent pipe diameter and length in accordance with Table 17.
3. Determine venter (flue) outlet diameter (refer to Venter (Flue) Outlet Diameter section).
4. Make all vent pipe joint connections in accordance with Vent System Sealing section.
5. Properly support all vent pipe runs in accordance with Vent System Support Requirements section.
6. Take appropriate steps to mitigate condensation in accordance with Condensation Mitigation section.
7. Terminate vent with option CC1 vent cap. Ensure that vent terminal is installed in accordance with Vent Terminal
Requirements section.
UNIT SIZES 30–100
UNIT SIZES 60–100
UNIT
UNIT
Figure 16. Typical Category I Dedicated Vent (Refer to Table 17)