Valor 534AN, Инструкция по установке и эксплуатации

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4.9. Rear Vent Connection,Vertical Rise with Offset,
Through the Roof Termination
See figure 11.
For situations where offset is necessary in an attic to avoid
obstructions or allow useful space.
Adapter #817VAK, one 90º vent elbow #990B, two 45º vent
elbows #945B, Dura-vent pipe lengths, a vertical vent terminal and
roof flashing will be required. Various other ceiling or roof items
may be necessary depending on the particular installation (See
venting options section of this manual).
Note
1. The distance from the roof to the lowest terminal discharge
opening depends on the roof pitch and must be in accordance
with the Dura-vent instructions supplied with the termination
unit.
2. The venting system for these appliances is considered to be a
Special Venting System. The rule in the Installation Code
CAN/CGA–B149 requiring a minimum vent height of 2ft
above any portion of a building within 10ft does not, therefore,
apply.
Figure 11 Rear vent connection, vertical rise with
offset, through thru roof termination