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UHD STANDARD DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL
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Figure 9: Concentric Vertical and Horizontal Vent Termination - Separated Combustion Heater
Description Part Number Qty.
Concentric Vent Kit (150 - 250) UHVK1
Concentric Vent Box Top & Side Assembly 90504113 1
Concentric Vent Box Bottom Assembly 90504112 1
Screw #6 x 3/8 Self Drilling 91119100 14
4" (10 cm) Vent Terminal with Baffle Plate 90502102R 1
6" (15 cm) Combustion Air Terminal 90502103 1
Description Part Number Qty.
Concentric Vent Kit (300 - 400) UHVK2
Concentric Vent Box Top & Side Assembly 90504013 1
Concentric Vent Box Bottom Assembly 90504012 1
Screw #6 x 3/8 Self Drilling 91119100 14
4" (10 cm) Vent Terminal with Baffle Plate 90502102R 1
8" (20 cm) Combustion Air Terminal 90502104 1
Model Vent Diameter
UHD[X]S[R] 150 - 400 4" (10 cm)
Model *Air Intake Diameter
UHD[X]S[R] 150 - 250 4" (10 cm)
UHD[X]S[R] 300 - 400 5" (13 cm)