Central Draw Point System - Supply Side; Central Draw Point System - Return Side - Venmar K7 HRV User's And Installer's Manual

For the Installer
5.2 I
NSTALLING THE DUCTWORK AND REGISTERS
5.2.2 C
ENTRAL DRAW POINT SYSTEM
When performing duct connections to the furnace supply duct,
use metal ducts appropriately sized to support the additional
airflow produced by the unit.
Stale air exhaust ductwork
• Same as for fully ducted system (see section 5.2.1)
Fresh air distribution ductwork
• Cut an opening into the furnace supply duct at least 18 inches (0.5 m) away
from the furnace/air handler
• Connect this opening to the Fresh air distribution port of the unit (use a
metal duct, see figure aside)
• Make sure the unit duct forms an elbow inside the furnace/air handler
ductwork.
NOTE : For this type of installation, it is recommended, however not essential, that
the furnace blower be synchronized with the unit.
5.2.3 C
ENTRAL DRAW POINT SYSTEM
Stale air exhaust ductwork
• Same as for fully ducted system (see section 5.2.1)
Fresh air distribution ductwork
• Cut an opening into the furnace return duct not less than 10 feet (3.1 m) from
the furnace/air handler (A+B)
• Connect this opening to the Fresh air distribution port of the unit (see figure
beside)
NOTE : For this type of installation, it is recommended, however not essential, that
the furnace blower be synchronized with the unit.
( ' )
CONT D
- S S
UPPLY IDE
CAUTION
- R S
ETURN IDE
VH0126
VH0127
8
18" (0.5 )
M
MINIMUM
B
A
A + B =
AT LEAST
10' (3.1 )
M