HXY48TAVJU
VRV System indoor unit
3P616151-1A – 2021.12
Installation and operation manual
19
By default no level is defined so all buttons and functions are
operable.
The actual permission level is determined by field setting. For
permission level 2, set field setting [0-00] to 2, for permission
level 3, set field setting [0-00] to 3.
Once the field setting is set, the chosen permission level is not
yet active. Enabling the selected permission level is done by
simultaneously pressing buttons
pi
and
pj
immediately
followed by simultaneously pressing buttons
s
and
ba
, and
keeping all 4 buttons pressed for at least 5 seconds. Note that
no indication on the user interface is given. After the procedure
the blocked buttons will not be available anymore.
Deactivating the selected permission level is done in the same
way.
[0-01]
Room temperature compensation value
If needed, it is possible to adjust some thermistor value of the
unit by a correction value. This can be used as countermeasure
for thermistor tolerances or capacity shortage.
The compensated temperature (= measured temperature plus
compensation value) is then used for controlling the system and
will be displayed in the temperature read-out mode. See also
"[9] Automatic temperature compensation" on page 21 for
compensation values for leaving water temperature.
[0-02]
Setting not applicable
[0-03]
Status: defines whether the ON/OFF instruction can be
used in the schedule timer for space heating.
Refer to the operation manual for details how to program the
schedule timer.
The schedule timer for space heating can be programmed in
2 different ways: based on the temperature set point (both
leaving water temperature and room temperature) and based on
the ON/OFF instruction.
In the following tables both methods on how to interpret the schedule
timer are shown.
Operation example
: Schedule timer based on temperature set
points.
When setback function (refer to "[2] Automatic setback function" on
page 20) is enabled, the setback operation will have priority over the
scheduled action in the schedule timer.
INFORMATION
By default space heating based on temperature set point
(method 1) is enabled, so only temperature shifts are
possible (no ON/OFF instruction).
Method 1
Space heating based on temperature set point
(a)
(a) For leaving water temperature and/or room temperature
During operation
During schedule timer operation the operation LED is lit
continuously.
When pushing
the
y
button
The schedule timer for space heating will stop and will
not start again.
The controller will be switched off (operation LED will
stop working).
When pushing
the
pr
button
The schedule timer for space heating will be stopped and
will not start again.
The schedule timer icon will not be displayed anymore.
1
Schedule timer
2
Setback function
3
When both setback function and schedule timer are enabled
A
Setback function
t
Time
T
Temperature set point
Room temperature
Leaving water temperature
Method 2
Space heating based on ON/OFF instruction
During operation
When the schedule timer switches space heating OFF,
the controller will be switched off (operation LED will stop
working).
When pushing
the
y
button
The schedule timer for space heating will stop (when
active at that moment) and will start again at the next
scheduled ON function.
The "last" programmed command overrules the
"preceding" programmed command and will remain
active until the "next" programmed command occurs.
Example: imagine the actual time is 17:30 and
actions are programmed at 13:00, 16:00 and
19:00. The "last" programmed command
(16:00) overruled the "previous" programmed
command (13:00) and will remain active until
the "next" programmed command (19:00)
occurs.
So in order to know the actual setting, one should consult
the last programmed command. It is clear that the "last"
programmed command may date from the day before.
Refer to the operation manual.
The controller will be switched off (operation LED will
stop working).
However the schedule timer icon will stay displayed.
When pushing
the
pr
button
The schedule timer for space heating will be stopped and
will not start again.
The schedule timer icon will not be displayed anymore.
T
t
6:30 9:00
16:00
0:30
0:30
1
T
t
A
5:00
23:00
5:00
23:00
2
T
t
5:00
9:00
16:00
23:00
6:30
3
108°F
(42°C)
72°F (22°C)
66°F
(19°C)
113°F (45°C)
108°F (42°C)
66°F (19°C)
70°F (21°C)
108°F
(42°C)
111°F
(44°C)
66°F
(19°C)
108°F
(42°C)
72°F (22°C)
66°F
(19°C)
113°F (45°C)
108°F (42°C)
66°F (19°C)
70°F (21°C)
108°F
(42°C)
111°F
(44°C)
66°F
(19°C)
99°F (37°C)
64°F (18°C)
104°F
(40°C)
99°F (37°C)
64°F (18°C)
104°F
(40°C)
104°F
(40°C)
66°F
(19°C)
64°F (18°C)
72°F (22°C)
70°F (21°C)
108°F
(42°C)
66°F
(19°C)
108°F
(42°C)
66°F
(19°C)
108°F
(42°C)
113°F (45°C)
111°F
(44°C)
99°F (37°C)
104°F
(40°C)
66°F
(19°C)
64°F (18°C)
72°F (22°C)
70°F (21°C)
66°F
(19°C)
108°F
(42°C)
66°F
(19°C)
108°F
(42°C)
113°F (45°C)
111°F
(44°C)
99°F (37°C)
108°F
(42°C)
01_EN_3P616151-1A.fm 19 ページ ２０２１年１２月１４日 火曜日 午後１時２９分
