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internal
Btower
(Not Included)
Strain Relief
:igure 1
iNTRODUCTiON
Step 1 PLAN THE INSTALLATION
GENERAL
DESCRIPTION
The complete downdraft system consists of the ventilator,
the intake and the blower (See Fig. 1 ). The blower can be
either integral
(mounted on the vent intake in the cabinet
under the cool<top) or a remote (mounted on the roof or
outside wall. When a remote blower is used, a duct transi-
tion is mounted on the ventilator intal<e in place of the
integral blower to connect the intake to the ductworL
The
duct transition must be purchased separately.
The integral blower or duct transition can be mounted in
different positions on the intake to route ductworl< to avoid
cabinet, building framing, utilities, etc.
The downdraft system is available in 30dnch and 36dnch
models, it is intended for use with all brands and models of
residential 30dnch or 36qnch gas or electric cool<tops
except professional
style cooktops.
Carefully follow the planning procedures listed below (See
Figure 2).
A.
Determine whether a remote or integral blower will be
used. Remote blower
Bnstammationrequires
4 wires
plus a ground wire to run from the downdraft
to the
blower.
B.
Make sure that adequate cabinet and counter space
has been provided and that the intake will be accessible
if service is required.
C. Consider that cross drafts created by adjacent open
windows, doors, air conditioning, old heating vents,
recessed ceiling lights, and traffic patterns may affect
performance.
D. For gas cool<top installations make sure that a mini-
mum 10 square inch opening is provided in the toe_l<icl<
or other cabinet area. Inadequate ventilation of the
cabinet below the cool<top may result in flame outage
when operating the vent system.
E. Provide for air supply or "mal<e_up air" to the room
where unit will be installed. If "mal<e_up air" is not
provided, then problems, such as fireplace chimney
downdrafts, could result.
Page 2
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