NOTE
■
■
1
3
—
T
t
T
A
[1] Weather dependent set point (heating operation only)
Before shipping, the set values have been set as
shown under "Field settings table" on page 35.
When exiting FIELD SET MODE, "88" may be
displayed on the user interface LCD while the unit
initialises itself.
The weather dependent set point field settings define the parameters
for the weather dependent operation of the unit. When weather
dependent operation is active the water temperature is determined
automatically depending on the outdoor temperature: colder outdoor
temperatures will result in warmer water and vice versa. During
Detailed description
weather dependent operation, the user has the possibility to shift up
or down the target water temperature by a maximum of 41°F (5°C).
[0] User permission level
See the operation manual for more details on weather dependent
If required, certain user interface buttons can be made unavailable for
the user.
operation.
■
[1-00] Low ambient temperature (Lo_A): low outdoor
temperature.
Three permission levels are defined (see the table below). Switching
between level 1 and level 2/3 is done by simultaneously pressing
buttons
pfi
and
pfj
immediately followed by
■
[1-01] High ambient temperature (Hi_A): high outdoor
temperature.
simultaneously pressing buttons
s
and
ba,
and keeping all 4
■
[1-02] Set point at low ambient temperature (Lo_Ti): the
buttons pressed for at least 5 seconds (in normal mode). Note that no
target outgoing water temperature when the outdoor
indication on the user interface is given. When level 2/3 is selected,
temperature equals or drops below the low ambient
the actual permission level
— either level 2 or level 3 — is
temperature (Lo_A).
dete
rmined by the field setting [0-00].
Note that the Lo_Ti value should be
higher
than Hi_Ti, as for
Button
Permission level
2
colder outdoor temperatures (i.e. Lo_A) warmer water is
required.
Quiet mode button
Weather dependent
set point button
s
ba
operable
operable
—
—
—
—
■
[1-03] Set point at high ambient temperature (Hi_Ti): the
target outgoing water temperature when the outdoor
temperature equals or rises above the high ambient
Schedule timer
enable/disable button
pr
operable
operable
temperature (Hi_A).
Note that the Hi_Ti value should be
lower
than Lo_Ti, as for
Programming button
Time adjust buttons
<
pf
operable
—
—
warmer outdoor temperatures (i.e. Hi_A) less warm water
suffices.
i
pf
operable
—
—
T
t
j
Inspection/test
operation button
z
operable
—
—
Lo_Ti
+ 05
Hi_Ti
00
– 05
Shift value
Lo_A
Hi_A
T
A
Target water temperature
Ambient (outdoor) temperature
= Shift value
Installation manual
EDLQ036~054B EBLQ036~054BA6VJU1
26
Unit for air to water heat pump system
4PW56182-1