Lifebreath RNC120D - Manual (Page 20)

Intake Weatherhood Requirements
• Should be located upstream (if there are prevailing winds) from the
exhaust outlet.
• At least 6' (2m) from the exhaust weatherhood.
• At least 6' (2m) away from dryer vents and air handler exhaust.
• A minimum of 6' (2m) from driveways, oil fill pipes, gas meters,
swimming pools or garbage containers.
• At least 18" (460mm) above the ground, or above the depth of expected
snow accumulation.
• At least 3' (1m) from the inside/outside corner of the building.
• Do not locate in a garage, attic, or crawl space.
Exhaust Weatherhood Requirements
• At least 6' (2m) from the ventilation air intake.
• At least 18" (460mm) above ground or above the depth of snow
accumulation.
• At lease 3' (1m) away from the corner of the building.
• At least 3' away from gas meter, electric meter or a walkway where fog
or ice could create a hazard.
• not into a garage, workshop or other unheated space.
When installing the weatherhood, its outside perimeter must be sealed
with exterior caulking.
Grilles
Adjustable grilles should be used to balance the flow rates into and out of
various rooms.
Grilles or diffusers should be positioned high on the wall or in the ceiling.
Kitchen exhaust grilles must never be connected to a range hood. They
should be installed at least 4 feet (1.2m) horizontally away from the stove.
This grille includes a removable grease filter. Canadian building codes
require that kitchen grilles be equipped with washable filters.
Field-supplied balancing dampers should be installed external to the unit to
balance the amount of stale air being exhausted with the amount of fresh air
being brought into the house. Refer to Air flow Balancing section.
20
Grilles and Weatherhoods
36" (1m)
recommended min.
36" (1m)
recommended min.
6' (2m)
recommended min.
18" (460mm) min. 18" (460mm) min.
OUTSIDE CORNER
INTAKE EXHAUST
INSIDE CORNER
Weatherhood arrangement - requires a minimum of 6'
(2m) separation and a minimum of 18" (460mm)
clearance above the higher of the grade or anticipated
snow level.
CAUTION
Weatherhood Clearances
1. Thermal Collar slides over galvanized
sleeve of Weatherhood.
2. Fasten Thermal Collar to Belt.
3. Slide the Insulated Flexible Ducting over
the Weatherhood's galvanized sleeve and
fasten it to the Thermal Collar.
4. Hood is hinged to allow for easy access
for cleaning of bird screen.
1/4" (6 mm) SCREEN
(front view)
EXTERIOR
WALL
SCREEN
(side view)
COLLAR IS SUPPLIED TO
ENSURE VAPOUR BARRIER
IS 100% SEALED TO
WALL PLATE
12" galvanized
pipe supplied
CAUTION
Lifebreath Techgrille
4" (100mm) Part No. 99-140
5" (125mm) Part No. 99-145
6" (150mm) Part No. 99-141
8" (200mm) Part No. 99-148
Lifebreath Weatherhoods
5" (125mm) Part No. 99-185
6" (150mm) Part No. 99-186
7" (200mm) Part No. 99-187
Lifebreath
Kitchen Grille
6” x 10” Kitchen Grille
Part No. 10-002
Replacement Grease Filter
Part No. 10-002-2
REMOVABLE
FILTER
Weatherhood Installation
Local codes may require greater distances.