S Implified I Nstallation (T-4) (T His Configuration Does Not Allow Recirculation Mode To Operate .) - Venmar A180H75RT Series User's And Installer's Manual

(T-3) (T
A
lTernATe insTAllATion
.)
mode To operATe
Unit should be synchronized with central forced-air system
operation to avoid condensation and mold growth in central forced-
air system distribution ducting if cooling mode of central forced-air
system is used.
This configuration is not recommended with high velocity
central forced-air system. High pressures produced by these
systems could affect unit proper operation and generate
errors.
NOTE: For this type of configuration, the T-3 option must be
selected on the LCD screen when auto-balancing the unit.
2.2.3 s i
implified nsTAllATion
The central forced-air system must be synchronized with the unit since fresh air evacuation and distribution
come from the same section. The central forced-air system must operate to avoid fresh air to be directly
drawn by the evacuation, which would reduce significantly fresh air supply to the building. See Section 3.3
for ducting.
Duct connection to the central forced-air system can be regulated by some codes and standards. It is your
responsibility to consider and comply with your local requirements to avoid any non-compliance.
Fresh air and exhaust air flow through the central forced-air
system ducts, which simplifies the installation.
The use of bathroom fans and a range hood is suggested to
exhaust stale air.
S :
tale air from building
Connect the stale air intake port of the unit to the central forced-
air system return duct at least 3 feet ahead of the fresh air
distribution from the unit.
f :
reSh air to building
Connect the fresh air distribution duct of the unit to the central
forced-air system return duct at least 10 feet away from the
central forced-air system (A+B)*.
* This 10-ft. distance applies only in areas where the outside
temperature falls below the freezing point 0°C (32°F).
NOTE: For this type of configuration, the T-4 option must be
selected on the LCD screen when auto-balancing the unit.
(T-5) (T
A
lTernATe insTAllATion
recirculATion mode To operATe
Unit should be synchronized with central forced-air system
operation to avoid condensation and mold growth in central
forced-air system distribution ducting if cooling mode of central
forced-air system is used.
This configuration is not recommended with high velocity
central forced-air system. High pressures produced by
these systems could affect unit proper operation and
generate errors.
NOTE: For this type of configuration, the T-5 option must be
selected on the LCD screen when auto-balancing the unit.
His confiGurATion Allows recirculATion
CAUTION
(T-4) (T
His confiGurATion does noT Allow recirculATion mode To operATe
His confiGurATion does noT Allow
.)
CAUTION
VH0166
CAUTION
!
WARNING
C
Stale air from
building
Fresh air from
outdoors
VH0167
Stale air from
building
Fresh air from
outdoors
VH0168
7
Stale air from
bathroom
Fresh air from Stale air to
outdoors outdoors
.)
A
Fresh air
to building
Stale air to
outdoors
Stale air to
outdoors
Fresh air to
building
B
A+b= 10'
min
c=3'
Fresh air to
building