Euroclima ZHK NANO User manual

=+.1$12
,16758&7,210$18$/

instruction and operation manual ZHK NANO
V04-18 1 / 116
In addition to the instructions in this guide,
subject-specific standards, as well as local, national and
international regulations must be observed.
!
Please give this instruction manual after com-
pletion of the work to the operating staff of the
AHU. Please keep the complete instruction and
operating manual at your documents.
!
ĞƚƌŝĞďƐĂŶůĞŝƚƵŶŐ
/ŶƐƚƌƵĐƚŝŽŶŵĂŶƵĂů
DĂŶƵĂůĞĚŝƐƚƌƵnjŝŽŶĞ
ET 174-0

instruction and operation manual ZHK NANO
V04-18 61 / 116
User manual
NANO V0.03
April 2018
+RWOLQH










instruction and operation manual ZHK NANO
62 / 116 V04-18
12 Display
12.1 Push buttons, rotary button
Figure 95: Display
The operation takes place via the elements described below:
xInfo-button return to the main / start page or application info page
off AHU off
green AHU on
green flashing AHU is starting (preheating) or stopping
orange only one fan is running
xAlarm-button show alarms (see chapter 11)
off no alarm
red flashing not acknowledged alarm is active
red alarms are active
xESC-button return to the previous menu page
cancel a value change
push long display service page (contrast, color, backlight, brightness)
xOk-button multifunctional push and rotary button
rotate select a menu / line, select / change value
push ok, go to a submenu, confirm a changed value
push long go to the password page, log in / log out
possible at any time in any menu

instruction and operation manual ZHK NANO
V04-18 63 / 116
12.2 Display
The display is divided into several areas:
6WRS$ODUP
Ÿ $OOVHWWLQJV Ź
2SHUDWLQJPRGH 2II
2 WGRRUWHPS &
6 SSO\WHPS &
5HW UQWHPS &
6 SSO\IORZ PK
ź 5HW UQIORZ PK

Figure 96: Start page


xHeadline on the main / start page: date, time and AHU state
in a submenu: the current selected submenu
xFurther lines arrows indicate additional lines above/below
xCurrent line / total lines current selected line / total number of lines
xSubmenu submenu, press Ok to go into the submenu
xValues, states display the current values, states and the setpoints / settings
The language can be selected via All settings ĺ/DQJXDJH.
Depending on the configuration of the AHU, more or less lines are displayed.
12.3 Password
For every entry a password is needed (except language selection); the current access level is dis-
played in the left top corner:
xNo key level 253 no change of settings possible, only a few parts
of the menus are visible
(language selection is always possible)
x1 key level 6 user level, change of setpoints / settings
level 5 extra user level, special settings
Password for user level
1000
(for OHYHOWKHSDVVZRUGLV VHUSDVVZRUGĺ
After 10 minutes the display makes an automatic logout and returns to the main / start page.
12.4 Operation, value entry
For the operation of the display, the rotary button and the ESC-button are primarily used. The ro-
tary button is used to select the desired line. Depending on the type of line a value / state is dis-
played, a setpoint is entered, a setting is made or a submenu is selected.
Line
current / total
Submenu
Values, states
Headline
Further lines
Password level

instruction and operation manual ZHK NANO
64 / 116 V04-18
12.4.1 Line with submenu
An arrow right next to the line indicates a submenu; the line can be selected with the rotary button
and the submenu can be entered with Ok.
12.4.2 Value, setpoint
Select the line of the setpoint to be changed and confirm with Ok; a new page displays the setpoint
with the limits and the location of the setpoint within the limits with an arrow on the bar.
Keep turning the rotary button until the desired value is set to change a value; after prolonged turn-
ing the active position will automatically switch to the next higher (once 10 numbers have been run
through); if the rotary button is not turned for some seconds, the active position will switch back to
the next lower. For better orientation this is illustrated by an arrow above the number. Thus, large
numerical ranges are adjusted quickly.
ź
Ŋņņņŏņņņŏņņņŏņņņŏņņņŏņņņŏņņņŋ
PKPK
Ļ
 PK

Figure 97: Set value, setpoint
12.4.3 Selection, setting, function
Select the line of the setting / selection / function to be changed with the rotary button and confirm
with Ok; A new page displays a list of possible settings with a ¥QH[WWRWKHF UUHQWVHWWLQJ6HOHFWD
new setting with the rotary button and confirm with Ok.
ϭϱ
¥5HW&DVF
6 SSO\
5HW UQ
5RRP&DVF
5RRP

Figure 98: Selection (e.g. supply air control)

12.4.4 ESC-button
The ESC-button has different functions:
xDuring the change of a setpoint or setting, this will be cancelled and the old value is
retained
xWithin a menu to return to the next higher menu
xBy pressing and holding the button, the system page of the display is called up; there the
color, contrast and brightness of the backlighting can be changed

instruction and operation manual ZHK NANO
V04-18 65 / 116
12.4.5 Adjustability
If a line is selected, the text appears on the left white on a black background. Is also the value
white on black background, then the value is adjustable, otherwise not. An adjustment is not possi-
ble without registration.
7HPSHUDW UHVHWSRLQWV
Ÿ 6 SSO\WHPSPLQ &
6 SSO\WHPSPD[ &
6DW UDWLRQWHPS &
6 PPHUFRPSHQVDWLRQ & Ź
+HDWVHW &
&RROVHW &
&RQWUROOHGWHPS &

Figure 99: Value adjustable
7HPSHUDW UHVHWSRLQWV
Ÿ 6 SSO\WHPSPLQ &
6 SSO\WHPSPD[ &
6DW UDWLRQWHPS &
6 PPHUFRPSHQVDWLRQ & Ź
+HDWVHW &
&RROVHW &
&RQWUROOHGWHPS &

Figure 100: Value not adjustable
13 Main / start page
The main / start page with the most important values and settings of the AHU is displayed after
powering on the controller:
6WRS$ODUP
Ÿ $OOVHWWLQJV Ź
2SHUDWLQJPRGH 2II
2 WGRRUWHPS &
6 SSO\WHPS &
5HW UQWHPS &
6 SSO\IORZ PK
ź 5HW UQIORZ PK

Figure 101: Main / start page
xDate, time and AHU state / operating mode source
xSubmenu for all settings
xOperating mode (switch on / off the AHU)
xTemperatures (outdoor, supply air, return air, ...)
xHumidity (supply air, return air)
xAir flow rate, duct pressure and fan speed

instruction and operation manual ZHK NANO
66 / 116 V04-18
xPower of the recovery
xValve positions and pumps for heating and cooling batteries
xHumidifier
The state display shows the current operating mode / operating mode source of the AHU:
x- no request
xStart start phase, initialization
xConfig configuration changed; AHU blocked
xStop / alarm AHU blocked (Alarm emergency stop)
xDisplay command from operating display
xBMS command from BMS
xRoom unit command from room unit
xScheduler command from scheduler
The different possibilities of the request (switching AHU on / off or operating mode) have different
priorities; so the AHU is switched off when the command from the display is Off, even if the sched-
OHURUWKH%06UHT HVWLVHFRQRP\RUFRPIRUW7KHSULRULW\FRUUHVSRQGVWRWKHDERYHOLVW³&RQILJ´
KDVWKHKLJKHVWDQG³6FKHG OHU´WKHORZHVWSULRULW\$SSHDUVLQWKHGLVSOD\-, then there is no re-
quest active (display, BMS and room unit have the state Auto, the scheduler is not active).
13.1 All settings
By the line All settings, the submenu All settings can be entered; by several submenus the display
pages for setpoints, operation mode, alarm state, password handling and language setting can be
entered.
$OOVHWWLQJV
6HWSRLQWVVHWWLQJV Ź
2SHUDWLRQPRGHVFKHG OHU Ź
$ODUPVWDWH Ź
3DVVZRUGKDQGOLQJ Ź
/DQJ DJH (QJOLVK

Figure 102: All settings
xSetpoints / settings VHWSRLQWVIRUWHPSHUDW UHK PLGLW\DLUT DOLW\«
xOperation mode / scheduler operation mode, scheduler, date / time setting
xAlarm states alarm states
xPassword handling enter passwords, change passwords
xLanguage language selection (English, Italian, German)
14 Setpoints / settings
The setting of the setpoints is performed separately for the airflow rate, temperature, humidity, air
quality and night setback.

instruction and operation manual ZHK NANO
V04-18 67 / 116
6HWSRLQWVVHWWLQJV
)ORZUDWH Ź
7HPSHUDW UH Ź
+ PLGLW\ Ź
$LUT DOLW\ Ź
1LJKWVHWEDFN

Figure 103: Setpoints/settings
14.1 Fan setpoints
The air flow rate, duct pressure, fan stage or fan speed is set via this page of the display; depend-
ing on the operating mode, more or less or no settings can be changed.
14.1.1 Operating mode of the fan control
The fan control has 3 possible operating modes; the operating mode is set during the commission-
ing and cannot be changed.
Airflow rate control
)DQVHWSRLQWV
6 SSO\(FR PK
6 SSO\&RPIRUW PK
5HW UQ(FR PK
5HW UQ&RPIRUW PK
1LJKWVHWEDFN Ź

6 SSO\VHW PK
Figure 104: Airflow rate control
At the airflow rate control, one setpoint for economy, comfort mode and night setback will be set
separately for supply and return air. Thus, it can be adjusted as desired overpressure (supply air-
flow > return airflow) or a negative pressure (supply airflow < return airflow). The setting is made in
m³ / h. The last 2 lines show the current setpoints for the fan control.
If an air quality control by means of the airflow rate is active, the maximum airflow rate for poor air
quality can also be set. The resulting airflow rate is then the maximum of the setpoint for economy /
comfort mode and air quality control. Thus, the selected airflow rate is always adhered and in-
creases due to poor air quality. The setting is made in the menu Air quality, which can be entered
directly.
If the dehumidification by means of the airflow rate is active, the maximum airflow rate for high hu-
midity can also be set. The resulting airflow rate is then the maximum of the setpoint for economy /
comfort mode and the dehumidification control. Thus, the selected flow rate is always adhered and
increases due to high room humidity. The setting is made in the menu Humidity, which can be en-
tered directly.

instruction and operation manual ZHK NANO
68 / 116 V04-18
In the night setback mode, the rooms can be cooled with the cool outdoor air outside normal work-
ing hours; all heating batteries, cooling batteries, recovery systems, humidity and air quality control
are disabled. The setting is made in the menu Night setback, which can be entered directly.
If a room unit or remote switch is connected, the airflow can be changed via this with a correspond-
ing configuration (offset).
6HWSRLQW
'HVFULSWLRQ
'HIDXOW
6 SSO\(FR
6 SSO\DLUIORZUDWHIRUHFRQRP\PRGH
+DOIQRPLQDODLUIORZ
UDWH
6 SSO\&RPIRUW
6 SSO\DLUIORZUDWHIRUFRPIRUWPRGH
1RPLQDODLUIORZUDWH
5HW UQ(FR
5HW UQDLUIORZUDWHIRUHFRQRP\PRGH
+DOIQRPLQDODLUIORZ
UDWH
5HW UQ&RPIRUW
5HW UQDLUIORZUDWHIRUFRPIRUWPRGH
1RPLQDODLUIORZUDWH
6 SSO\VHW
& UUHQWV SSO\DLUIORZUDWHVHWSRLQW
«PñK
5HW UQVHW
& UUHQWUHW UQDLUIORZUDWHVHWSRLQW
«PñK
Table 8: Airflow rate setpoints
The setpoints for night setback, air quality and humidity control can be found in the chapters night
setback (14.5 Night setback), air quality control (14.4.1.3 Fan speed) and humidity control
(14.4.1.1 CO2 sensor).
Pressure control
When the fans are controlled by the duct pressure, the required pressure setpoint is set at commis-
sioning separately for supply and return air and is equal for economy and comfort mode. This is
visible, but can be changed only by service personnel. The current air flow rate is always visible on
the main page.
An air quality control or dehumidification is not possible, because the amount of air cannot be
changed and depends only on the external duct pressure.
If air quality control is provided by means of duct pressure, the maximum duct pressure can also
be set at poor air quality. The resulting duct pressure is then the maximum of the setpoint for econ-
omy / comfort mode and air quality control. Thus, the selected duct pressure is always maintained
and increased due to poor air quality. The setting is made in the menu "air quality", which can be
entered directly.
If the dehumidification is activated by means of duct pressure, the maximum duct pressure can
also be set at high humidity. The resulting duct pressure is then the maximum of the setpoint for
economy / comfort mode and dehumidification control. Thus, the selected duct pressure is always
maintained and increased due to high room humidity. The setting is made in the menu "humidity",
which can be entered directly.
6HWSRLQW
'HVFULSWLRQ
'HIDXOW
6 SSO\G FWSUHVV
6 SSO\DLUG FWSUHVV UHVHWSRLQW
6HHGDWDVKHHW
5HW UQG FWSUHVV
5HW UQDLUG FWSUHVV UHVHWSRLQW
6HHGDWDVKHHW
Table 9: Duct pressure setpoints