Toshiba VN-U00151SY-E Precauciones De Seguridad página 45

 Functions
About ventilation modes
* For details, see "About ventilation modes".
[Heat exchange mode], [Bypass mode] or
[Automatic mode] can be selected.
About unbalanced ventilation fan speed
( [SA>EA]/ [SA<EA])
For normal ventilation High, Medium and Low:
The volumes of the indoor air supply and outdoor air
exhaustion are set to the same level.
For unbalanced ventilation fan speed:
• When [SA>EA] is selected: the volume of the
indoor air supply is larger than that of the outdoor air
exhaustion.
(Inflow of humidity and smells from the toilet and
kitchen is reduced.)
• When [SA<EA] is selected: the volume of the
outdoor air exhaustion is larger than that of the
indoor air supply.
(Outflow of smells and floating bacteria into a
corridor or other places is reduced.
* Consult your dealer if the setting of the imbalanced
ventilation fan speed seems incorrect.
About 24-hour ventilation
• When the 24-hour ventilation setting is active,
push the [ ON/OFF] button while the
system is running and the operation lamp turns
off, " " appears on the display, and 24-hour
ventilation starts.
• From "Ventilation menu" of main screen or in the
menu "11. Ventilation", you can stop 24-hour
ventilation temporarily.
The " " indicator turns off and 24-hour
ventilation stops temporarily.
NOTE
• The setting of 24-hour ventilation is "OFF" As factory
default. Consult your dealer to change the setting to
"ON".
• The ventilation setting of fan speed or mode cannot be
changed during 24-hour ventilation. Their indicators
are not displayed.
* During 24-hour ventilation, the unit is running under the
settings [LOW] ventilation fan speed and [Heat
exchange mode].
• If interval 24-hour ventilation operation mode is set,
the " " indicator stays lit even during the intervals.
• The " " indicator stays lit or stops by the central
control mode. (Central 1, 2 and the external input of a
Heat recovery ventilation CN61 (2)-(3) or CN705 (1)-(2)
prohibition of remote controller operation)
87-EN
About nighttime heat purge operation
• Nighttime heat purge is a function to reduce the
room air conditioning load in the morning in
summer by exhausting the air indoor which has
become warm while the Air conditioner is
stopped in the night automatically in the Bypass
mode.
• Nighttime heat purge is compatible with the
following two systems.
1. Heat recovery ventilation unit system (one unit or
multiple units)
The nighttime heat purge operation functions if
night purge is activated and the Heat recovery
ventilation is stopped.
2. Heat recovery ventilation unit system linked with
Air conditioners.
• The nighttime heat purge operation functions if
night purge is activated and the last operation
mode of the Air conditioner before stopping is
, or in a Heat recovery ventilation
unit system linked with Air conditioners.
If the [ ON/OFF] button is pushed while the
system is running, the operation lamp turns off, "
appears on the display, and the nighttime heat purge
operation turns on-standby.
After the operation becomes on-standby, the unit
automatically starts ventilation in [Low] ventilation
fan speed and [Bypass mode] when the conditions to
start the nighttime heat purge operation below are
fulfilled.
The nighttime heat purge operation is paused for half
an hour if any of the conditions to pause the
operation are detected.
If the conditions to start the nighttime heat purge
operation are fulfilled half an hour after the pause,
the operation will start again. If not, the operation will
remain paused for once more half an hour.
This cycle is repeated until the conditions to stop
(end) the nighttime heat purge operation below are
fulfilled.
The conditions to start the nighttime heat purge
operation
The unit compares temperatures indoor and outdoor
using the monitoring operation (for about 5 minutes)
and will start the nighttime heat purge operation if the
following conditions are fulfilled.
1. A certain amount of time has passed between the
nighttime heat purge operation becoming on-
standby and the monitoring operation starting. (The
time is set between 1- 48 hours in 1 hour steps.)
2-1.Heat recovery ventilation unit system: The
outdoor temperature (TOA) is the same or more
higher than 24°C and the indoor temperature
(TRA) is higher than the supply air temperature
(TSA).
2-2.The indoor temperature is 3°C or more higher
than the outdoor temperature and the indoor
temperature is 2°C or more higher than the
temperature set for the operation.
The conditions to pause the nighttime heat purge
operation (the operation pauses for half an hour.)
1-1.Heat recovery ventilation unit system: The
"
outdoor temperature (TOA) is the same or lower
than 22°C or the indoor temperature (TRA) is the
same or lower than the supply air temperature
(TSA) .
1-2.Heat recovery ventilation unit system linked with
Air conditioners: The indoor temperature (TRA) is
the same or lower than the outdoor temperature
(TOA) or the indoor temperature (TRA) is the
same or lower than the temperature set for the
operation.
The conditions to stop (end) the nighttime heat
purge operation
The nighttime heat purge operation ends and the "
indicator disappears if any of the following conditions
are fulfilled.
1. The Air conditioner or Heat recovery ventilation unit
is started.
2. 48 hours has passed since the monitoring
operation started.
NOTE
• The setting of the nighttime heat purge operation is
"OFF" As factory default.
Consult your dealer to change the setting to "ON" or
the setting of the time until the monitoring operation
starts. Also consult your dealer to change the outdoor
temperature conditions (24°C) on a Heat recovery
ventilation unit system.
• The ventilation setting of fan speed or mode cannot be
changed during the nighttime heat purge operation.
Their indicators are not displayed.
• The " " indicator stays lit while the operation is on-
standby or paused.
• The nighttime heat purge operation cannot be
activated if 24-hour ventilation is activated.
– 44 –
CAUTION
• The nighttime heat purge operation is not executed if
the outdoor temperature becomes about 15°C or less
to prevent condensation in the Heat recovery
ventilation unit, but the " " indicator is still lit.
• The " " indicator stays lit or stops by the central
control mode. (Central 1, 2 and the external input of a
Heat recovery ventilation CN61 (2)-(3) or CN705 (1)-(2)
prohibition of remote controller operation)
"
88-EN