Cold Draft Control During Cooling Operation; Automatic Heating/Cooling Operation - Hitachi RPC-5.0FSR Operation Manual

• Different Operation Mode
When the operation mode set by the wired
controller is different from the outdoor unit
operation mode, the actual operation mode
flashes on the LCD.
(except for the heat recovery system models)
The current operation mode and the message
"Other remote are in HEAT setting" will be
flashing.
Flashing
The above display shows the case that
the cooling mode is set from the wired
controller while actual operation mode
of the outdoor unit is heating.
10.1.5 Cold Draft Control during Cooling Operation
(1) Function
This function controls the overcooling airflow
to prevent of cold draft.
(2) Setting Items
* OFF : This function is not available.
* LOW : The over-cooling airflow
temperature is controlled low degree.
* MID : The over-cooling airflow
temperature is controlled medium
degree.
* HIGH : The over-cooling airflow
temperature is controlled high
degree.
(The default setting is "OFF")
(3) Supplement of Function
• The discharge air temperature is elevated
higher in "HIGH" > "MID" > "LOW" order.
• The recommended discharge air
temperature setting is "LOW".
(When feeling cold at "LOW", change the
setting to "MID" or "HIGH".)
* This function also reduces the formation of
dew condensation on the indoor unit when
the discharge air temperature is lower than
the inlet air temperature in a very humid
room.
(The recommended discharge air
temperature setting is "LOW".)
14
● The "Control Cool Air" function may not have
much effect depending on the operating
conditions of the outdoor unit.
● In case one outdoor unit is connected to multiple
indoor units and the rate of these indoor units
which are equipped with the "Control Cool Air"
function is low, this function may not have much
of an effect.
● When this function is set, it may take a few
minutes to cool the entire room.
● While this function is activated, "Cold draft rest."
is displayed on the LCD control panel of the
wired controller.
Meeting Room
A/C
MODE SPEED
AUTO
Cold draft rest.
LOUV. Adj.
An automatic heating/cooling operation requires
extra settings.
Refer to the "Installation & Maintenance Manual"
for the wired controller and the "Service Manual"
for details.
10.1.6 Automatic Heating/Cooling Operation
In case dual setpoint is selected in automatic
heating/cooling operation, during auto mode both
cooling setpoint and heating setpoint can be
selected.
By default, temperature when the heating/cooling
mode changes are as follows.
Cooling mode changes to heating mode when the
indoor temperature is heating setpoint -1
Heating mode changes to cooling mode when the
indoor temperature is cooling setpoint +1
If the temperature for changing modes requires
to be changed, refer to the "Installation &
Maintenance Manual" for the wired controller and
the "Service Manual" for details.
A/C Meeting Room
MODE SPEED
AUTO
LOUV. HEAT TEMP
LOUV. TEMP
28
Avoid
.0
o
C.
o
C.
LOUV. TEMP
COOL HEAT
Avoid
28 26
.5 .5
Adj.
A10762290A