Blodgett XR8-E - Manual (Page 8)

6
Installation
Ventilation (XR8-G only)
Direct Flue Arrangement
When the installation of a mechanically driven exhaust
hood is impractical the oven may be vented by a direct
flue arrangement.
WARNING!!
It is essential that the direct flue be installed
as follows. Incorrect installation will result in
unsatisfactory baking and oven damage.
The flue must be 6” (15 cm) diameter, class B or better.
The height of the flue should be compliant with the cur-
rent revision of NFPA 54, Ansi Z223.1. Never direct vent
the oven into a hood. The flue should be capped with a
UL Listed type vent cap to isolate the unit from external
environmental conditions.
The direct vent cannot replace air consumed and vented
by the oven. Provisions must be made to supply the room
with sufficient make-up air. Total make-up air require-
ments for each oven section should be approximately 35
CFM (.99 m3/min). To increase the supply air entering the
room, a ventilation expert should be consulted.
Installing the draft hood
Ovens ordered for direct venting are supplied with a draft
hood. Install the draft hood as follows:
1. Disconnect power to the oven.
2. Remove the two screws holding the exhaust guard.
See Figure 2.
3. Install the draft hood using the screws removed in
step 2. See Figure 3.
4. Reconnect power to the oven.
Figure 2 Figure 3