HXHD125A7V1B
VRVIII system indoor unit
4PW62584-1A – 11.2010
Installation manual
31
■
[b-03]
Set point: storage temperature (see figure above)
■
[b-04]
Maximal domestic hot water setting during weather
depending domestic hot water setpoint.
Refer to the figure above.
[C] Leaving water temperature limits
To prevent misuse concerning leaving water temperatures, it is
possible to limit the set points.
■
[C-00]
Maximum leaving water setpoint in heating operation.
■
[C-01]
Minimum leaving water setpoint in heating operation.
■
[C-02]
Setting not available
■
[C-03]
Setting not available
■
[C-04]
Setting not available.
[d] Domestic water heating retention times
The heat pump can only work in either space heating operation or
domestic water heating operation. No simultaneous operation is
possible, except when using multiple set point control (see chapter
"9.7. Multiple set point control" on page 36
for more information).
■
[d-00]
Set point: minimum operation time for domestic water
heating
■
[d-01]
Set point: maximum operation time for domestic water
heating
■
[d-02]
Set point: interval minimum stop time of domestic water
heating
Changing the timer values can have an impact on space heating and
domestic water heating heat up timers. The default values are
proposed but can be changed depending on the complete system
installation.
For a detailed explanation about simultaneous request of space
heating and domestic water heating, see chapter
demand of space heating and domestic water heating" on page 32
■
[d-03]
Setting not available.
■
[d-04]
Setting not available.
[E] Service mode
■
[E-00]
Vacuum mode
When recovering/vacuuming of the indoor unit is needed, field
setting [E-00] can be activated. It will force the unit into thermo
OFF and will open the expansion valve of the indoor unit R134a
circuit so full vacuuming is possible.
By default [E-00]=0, set to 1 to enable the vacuum mode.
■
[E-01]
Setting not available.
■
[E-02]
Setting not available.
■
[E-03]
Setting not available.
■
[E-04]
Pump only operation
When commissioning and installing the unit it is very important
to get all air out of the water circuit.
Through this field setting the pump can be operated without
actual operation of the unit. By doing so this will enhance the air
removal from the circuit. The pump can operate at different
speed:
■
[E-04]
=0 normal operation of the unit (default)
■
[E-04]
=1 low pump speed operation
■
[E-04]
=2 high pump speed operation
If you select [E-04]=1 or 2 and [6-00]=1, the unit will activate
the domestic hot water 3-way valve. This function is a helpful
feature to get all air removed out of the system (as well in
space heating as in domestic hot water heating).
"10. Final check and test run" on page 40
for more
information.
[F] Option setup
■
[F-00]
Setting not available
■
[F-01]
Setting not available
■
[F-02]
Heat recovery allowance setting
Heat recovery is possible from DX indoor units operating in
cooling mode to the domestic hot water tank of this HXHD125
unit.
If you activate this setting, your domestic hot water tank will be
automatically heated when other indoor units operate in cooling
mode.
[F-02]=0: Heat recovery operation is possible
[F-02]=1 or 2: Heat recovery operation is not possible.
■
[F-03]
: Setting not available
■
[F-04]
: Setting not available
INFORMATION
If weather dependent domestic water heating is enabled
[b-02], the storage temperature will be set automatically
and the field setting [b-03] will be of no importance.
NOTICE
Do not forget to restore the field setting [E-00] to the
default value when vacuuming is finished! See also
Vacuuming/recovery and maintenance on
[E-04]=1 or 2
▼
Pump operation for 20 minutes
space 3-way valve in space heating mode
if [6-00]=1
▼
Pump operation for 10 minutes
3-way valve in domestic hot water heating mode
Summary of Contents for HXHD125A7V1B
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