Venmar PRO250 - Locating Exterior Ports; Connecting Insulated Ducts to E; Terior Ports

4. UNIT INSTALLATION (CONT’D)
4.8 LOCATING EXTERIOR PORTS
Choose an appropriate location for installing the exterior ports:
• At a distance of at least 6 feet (1.8 m) one from the other
• At a minimum distance of 18 inches (457 mm) from the ground
12
WARNING
Make sure the fresh air intake port is at least 6 feet (1.8 m) away (or more, as per
applicable building codes or standards) from sources of contamination such as:
• High efficiency furnace vent • Any exhaust from a combustion source
• Gas meter exhaust, gas barbecue-grill • Garbage bin
!
VD0203
STALE
AIR
EXHAUST
PORT
FRESH
AIR
INTAKE
PORT
6’
(1.8 M)
6’
(1.8 M)
18’’
(457 MM)
18’’
(457 MM)
6” Ø
(152 MM)
18’’ (457 MM)
OPTIONAL
LOCATION
4.9 CONNECTING INSULATED DUCTS TO EXTERIOR PORTS
•For each exter ior port,
using a jig saw, cut a 6’’
diameter hole in the
exterior wall.
•From the outside, slide the
exterior port in place and
attach it to the exter ior
wall, using 2 no. 8 x 1½”
provided screws. Seal the
outline with silicone.
•From the inside, pull back
the insulation to expose
the flexible duct and, using
a tie wrap, attach it to the
exter ior port r igid duct.
Carefully seal with duct
tape. Pull the insulation over the joint. Pull the vapor barrier over the insulation and
over the joint. Apply gently duct tape to the joint making an airtight seal. See above.
VR0028