Installation and operation manual
28
HXY48TAVJU
VRV System indoor unit
3P616151-1A – 2021.12
14
DEFROST/START UP MODE ICON
d
This icon indicates that the defrost/start up mode is active.
15
COMPRESSOR ICON
ç
This icon indicates that the compressor in the outdoor unit of the
system is active.
16
PUMP ICON
é
This icon indicates that the circulation pump is active.
17
OUTDOOR TEMPERATURE DISPLAY
u
When this icon is flashing, the outdoor ambient temperature is
displayed. Refer to "10.3.7. Temperature read-out mode" on
page 31 for more information.
18
WEATHER DEPENDENT SET POINT ICON
a
This icon indicates that the controller will adapt the leaving water
temperature set point automatically, based on the outdoor
ambient temperature (during heating operation).
19
TEMPERATURE ICON
b
This icon is displayed when the actual room temperature or
room temperature set point is shown.
The icon is also displayed when the temperature set point is set
in
schedule
timer
programming
mode.
Refer
to
"10.3.7. Temperature read-out mode" on page 31 for more
information.
20
TEST OPERATION ICON
t
This icon indicates that the unit runs in test mode.
21
FIELD SET CODE
;
This code represents the code from the field set list. Refer to the
"8.3. Field settings" on page 18.
22
MALFUNCTION CODE
:
This code refers to the malfunction code list and is for service
purposes only. Refer to the malfunction code list
"8.6.2. Malfunction codes list" on page 25.
23
BUTTON
w
This button has no function.
24
WEATHER DEPENDENT SET POINT BUTTON
ba
This button enables or disables the weather dependent set point
function which is available in space heating operation.
If the controller is set to permission level 3 (refer to "Field
settings" in the installation manual), the weather dependent set
point button will not be operable.
25
INSPECTION/TEST OPERATION BUTTON
z
This button is used for installation purposes and changing field
settings. Refer to "8.3. Field settings" on page 18.
26
PROGRAMMING BUTTON
<
This multi-purpose button is used to program the controller. The
function of the button depends on the actual status of the
controller or on previous actions carried out by the operator.
27
SCHEDULE TIMER BUTTON
r
/
p
The main function of this multi-purpose button is to
enable/disable the schedule timer.
The button is also used to set the clock and to program the
controller. The function of the button depends on the actual
status of the controller or on previous actions carried out by the
operator.
28
TIME ADJUST BUTTONS
pi
and
pj
These multi-purpose buttons are used to adjust the clock, to
toggle between temperatures (water inlet/outlet temperature of
the unit, outdoor ambient temperature, actual room temperature)
and in schedule timer programming mode.
29
LEAVING WATER TEMPERATURE ADJUST BUTTONS
ébi
and
ébj
These buttons are used to adjust the leaving water temperature
set point in normal operation mode or in schedule timer
programming mode.
If the controller is set to permission level 3 (refer to "Field
settings" in the installation manual), the leaving water
temperature adjust button will not be operable.
In case the weather dependent set point operation is selected,
the unit has a floating set point. In this case, the
a
icon as well
as the shift value (in case not zero) will display.
30
ROOM TEMPERATURE ADJUST BUTTONS
bi
and
bj
These multi-purpose buttons are used to adjust the current room
temperature set point in normal operation mode or in schedule
timer programming mode.
When changing the room temperature set point, the set point
value on the display will be flashing. After 5 seconds the display
will show to the actual room temperature.
31
BUTTON
S
This button has no function.
32
BUTTON
h
/
c
This button has no function.
10.3.3. Setting up the controller
After initial installation, the user can set the clock and day of the
week.
The controller is equipped with a schedule timer that enables the user
to schedule operations. Setting the clock and day of the week is
required to be able to use the schedule timer.
Setting the clock
1
Hold down the
pr
button for 5 seconds.
The clock read-out and the day of week indicator start flashing.
2
Use the
pi
and
pj
buttons to adjust the clock.
Each time the
pi
or
pj
button is pressed, the time will
increase/decrease by 1 minute. Keeping the
pi
or
pj
button pressed will increase/decrease the time by 10 minutes.
3
Use the
ébi
or
ébj
button to adjust the day of the week.
Each time the
ébi
or
ébj
button is pressed the next or
previous day is displayed.
4
Press the
<
button to confirm the current set time and day of the
week.
To leave this procedure without saving, press the
pr
button.
If no button is pressed for 5 minutes the clock and day of the
week will return to their previous setting.
Setting the schedule timer
To set the schedule timer, refer to chapter "10.3.10. Programming
and consulting the schedule timer" on page 33.
Main
Sub
Permission
level 2
level 3
Operation ON/OFF
Setting the leaving water temperature
—
Setting the room temperature
Weather dependent set point operation
ON/OFF
—
Setting the clock
—
—
Programming the schedule timer
—
—
—
Schedule timer operation ON/OFF
—
Field settings
—
—
—
malfunction code display
Test operation
—
—
= operable
INFORMATION
The clock needs to be set manually. Adjust the setting
when switching from summertime to wintertime and
vice versa.
If the controller is set to permission level 2 or 3 (refer
to "Field settings" in the installation manual), setting
the clock will not be possible.
A power failure exceeding 2 hours will reset the clock
and the day of the week. The schedule timer will
continue operation, but with a disordered clock.
Therefor it will be needed to correct the clock and the
day of the week.
01_EN_3P616151-1A.fm 28 ページ ２０２１年１２月１４日 火曜日 午後１時２９分