Operating Guide

30
31
Foundation Ventilation
Foundation Vents
Master Flow
®
Foundation Vents
help to remove damaging
moisture, which can lead to
mold growth and structural
decay in the foundation area
of the home. They can even help
lower the risk of frozen pipes
by providing ventilation in the
crawl space area.
• Removes damaging moisture – helps prevent structural decay
and mold growth
• Fits in traditional foundation vent openings, with simple
plug-and-go operation
• Up to 330 CFM/airflow to eliminate moisture during peak times
• Tested and approved by independent laboratories
• Positive open/close
damper action
• Lintel for foundation block
construction
• Lowers risk of frozen pipes
• Saves energy
• Helps prevent foundation
decay
• Designed for nailing to floor
joists or as a foundation
block replacement
•
Automatically opens at 70°F, closes at 40°F
•
Helps prevent foundation decay
•
Lowers risk of frozen pipes
•
Replaces manual vent
•
Snap-in installation
•
Saves energy
• Aluminum vanes; lintel
not required
• For block, brick, or frame
construction
• Recommended for high-level
ventilation
• Easy to mount over most
16" x 8" foundation vents
Power Foundation Vent
PFV1
Grate Style
500
Grill Style
LW1/LW1L
Automatic Foundation Vent
FVRABL
Block Style
BVSII
Cover
FVC168
PRODUCT SPECIFICATIONS
Power
Model
Number
Style Color Construction Description
N.F.V.A.
(Sq. In.)
PFV1 Power Black
High-Density
Polyethylene
16" x 8"
330CFM
(1yr. ltd. warranty*)
57
Automatic
Model
Number
Style Color Construction Description
N.F.V.A.
(Sq. In.)
FVRABL Automatic Black
High-Density
Polyethylene
16" x 8" 57
Grate Style
Model
Number
Style Color Construction Description
N.F.V.A.
(Sq. In.)
500 Grate Mill
Die-Cast
Aluminum
16" x 8"
With Lintel &
Slide Action
28
Block Style
Model
Number
Style Color Construction Description
N.F.V.A.
(Sq. In.)
BVSII Block Mill
Galvanized
Steel/
Aluminum
15
3
/
8
" x 8" x 2
3
/
4
"
With Moveable
Louvers
73
Grill Style
Model
Number
Style Color Construction Description
N.F.V.A.
(Sq. In.)
LW1 Grill Mill
Die-Cast
Aluminum
16" x 8"
With Damper
50
LW1L Grill Mill
Die-Cast
Aluminum
16" x 8"
With 1
3
/
8
"
Lintel & Damper
50
Cover
Model
Number
Style Color Construction Description
N.F.V.A.
(Sq. In.)
FVC168 Cover Mill Aluminum Fits Most Sizes –
*See Master Flow
®
Powered Ventilation Products Ltd. Warranty for complete coverage and restrictions.