Static Pressure Setting; Ventilation Mode - Hitachi KPI-252E4E Installations- Und Betriebshandbuch

KPI UNITS INSTALLATION
3.1.4 Optional functions and setting
1 Press and hold " " (menu) and " " (return) simultaneously
for at least 3 seconds during the normal mode (when unit is
not operated). The test run menu will be displayed.
Test Run Menu
Test Run
Function Selection
Thermistor Selection
Input/Output
Function 5
SEL. ADJ
2 Select "Function Selection" from the test run menu and press
"OK".
3 Select the indoor unit by pressing "
Function Selection
01-01
01-02
01-03
01-04
SEL.
(This screen is NOT displayed when the number of indoor
unit connected with the remote control switch is 1 (one). In
this case, (4) will be displayed.)
Press " " and select the item.
4
Function Selection:01-03
Item
b1
b2
b3
b4
b5
SEL. ADJ
5 Press " " and change the setting.
Function Selection:01-03
Item
b1
b2
b3
b4
b5
SEL. ADJ
6 Press "OK" so that the confirmation screen will be displayed.
7 Select "Yes" and press "OK". The test run menu will be
displayed after the setting is confirmed. If "No" is pressed,
the screen will return to (4).
Function Selection:01-03
Confirm function
selection setting?
Yes
SEL.
8 Press " " (return) on the test run menu to return to the
normal mode.
7 PMML0371A rev.1 - 08/2016
01
/
03
OK
ENT. RTN.
" and press "OK".
All
OK ENT. RTN.
Setting
00
01
00
/
00
00 18
00
OK ENT. RTN.
Setting
00
01
00
/
01
00 18
00
OK
ENT. RTN.
No
ENT. RTN.
OK
9 To set other units, press " " (return) at (4)(5) so that
the screen will return to (3). (If the number of indoor unit
connected with the remote control switch is 1 (one), the
screen will return to (1).)
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Static pressure setting

KPI units have been provided by three Static Pressure levels
regulation depending on the installation requirements.
High Static Pressure, Medium Static Pressure (Factory setting)
and Low Static Pressure conditions are available.
Static Pressure setting shall be made from the Remote Control
Switch. For changing to High and Low Static Pressure level,
refer to the Instalation and Operation Manual. Examples of
configuration with PC-ARFPE remote controler are show below.
Select item  and change the setting as follows:
• 00 Medium Static Pressure (Factory Setting)
• 01 High Static Pressure
• 02 Low Static Pressure
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Ventilation mode

This function is used to set the ventilation mode of the ventilation
unit with energy / heat recovery.
Select item E1 and change the setting as follows:
• 00 Automatic Ventilation: Selecting effective ventilation mode
(Total Heat Exchanging Ventilation or Bypass Ventilation)
for energy saving by detecting the temperature difference
between the outdoor temperature and the room temperature.
• 01 Total Heat Exchanging Ventilation: The heat exchanging
is performed continuously when the total heat exchanger is
operated.
• 02 Bypass Ventilation: The heat exchanging is not performed
continuously when the total heat exchanger is operated.
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Increased air supply volume
This function is used to increase the supply air volume with the
one-step high tap of the fan motor for supply air during operation
of the total heat exchanger, make the room pressure higher than
the surrounded room with the increased supply air volume and
prevent the polluted air and smell from entering into the room.
Select item e2 and change the setting as follows:
• 00 Not available
• 01 Available
The setting air flow mode by remote control switch and the
actual air flow of the total heat exchanger when setting this
function are as shown below.
Setting Air Flow Mode by
Remote Control Switch
LOW
MED
HIGH
Air Flow of Total Heat
Exchanger
MED
HIGH
HIGH