Installation manual

Weatherhood Installation (ERV)
Lifebreath Weatherhoods
Fixed, covered weatherhoods include a 1/4” (6mm) screen
to prevent foreign objects from entering the duct work.
Hoods are labelled Supply and Exhaust. The kit also
includes 2 sleeve of pipe and 2 collars.
Available Parts
5” (125 mm) Part No. 99-185
6” (150 mm) Part No. 99-186
7” (200 mm) Part No. 99-187
1. Thermal Collar slides over galvanized
sleeve of Weatherhood.
2
. Fasten Thermal Collar to Belt.
3. Slide the Insulated Flexible Ducting over
th e Weatherhood's galvanized sleeve and
fa sten it to the Thermal Collar.
4. Hood is hinged to allow for easy access
for cleaning of bird screen.
W
EATHERHOOD INSTALLATION
T
1
/4" (6 mm) SCREEN
(
front view)
EXTERIOR
WALL
SCREEN
(side view)
C
OLLAR IS SUPPLIED TO
E
NSURE VAPOUR BARRIER
I
S 100% SEALED TO
W
ALL PLATE
12" galvanized
pipe supplied
36" (1m)
recommended min.
36" (1m)
recommended min.
6' (2m)
recommended min.
18" (460mm) min.
18" (460mm) min.
OUTSIDE CORNER
INTAKE
EXHAUST
INSIDE CORNER
Note: Always check the local codes for the exact
recommendations.
Weatherhood Clearances
Dual Hood Part # 99-190
The Dual Hood offers the benefit of requiring
only one 6” hole in the exterior wall to complete the
connections for fresh air intake and stale air exhaust.
The pressure drop/airflow charts should be
referred to when matching the Dual Hood to
the HRV / ERV.
Component Rating
All plastic components are rated UL 94V-0.
Foam components are rated 5/50 Flame
spread/smoke development.
Note: Contact the local building authority before installing the
Dual Hood to verify compliance with the local building codes.
0
0.05
0.10
0.15
.20
.25
.30
.35
20 40 60 80 100 120 140
Static Pressure (in w.g.)
Air Flow (cfm)
.40
Intake Airflow Chart
0
0.05
0.10
0.15
.20
.25
.30
.35
20 40 60 80 100 120 140
Static Pressure (in w.g.)
Air Flow (cfm)
.40
Exhaust Airflow Chart
Side View of the Hood
and Backplate
Stale Air
Exhaust
Fresh Air
Intake
20