Switching Differential (Hysteresis) Settings; Settings For The Heating Pumps; Settings For The External Connections - Bosch HPC 400 Installation Instructions For Contractors

BOSCH
Service menu
I
On/Off· hysteresis
Stand·alone mode
Pumps
EXternal connections
i
Fuse size
Yes
heater.
The system is to be fitted with a fuse. The type of fuse installed must be set here (16120 125 132 A) . 16 ... 32A
Off
-
Manual defrosting
Smart Grid
PVsystem
On
Table 13 Settings in the heat pump menu
The evaporator is defrosted automatically.
The heat pump is forced to defrost the evaporator.
(~
Chapter 6.1.4)
(~ Chapter 6.1.5)
--~---------------~-
6.1.1 Switching differential (hysteresis) settings
The heat pump switches to heating mode or cooling mode at specific
temperatures. To reduce the number of times that the heat pump has to
switch operating mode, a switching differential can
be
assigned to the
limit values in the menu
On/Off-hysteresis.
This specifies by how many
degrees and for how long the actual measured value has to exceed or fall
below the limit value before the operating mode in question is activated
(for
A/W
split only) .
10 ... 30 ... 100 K
x
mi This setting starts the heat pump when the actual flow temperature has been below the set flow temperature for the set
n value. The heat pump will stop when the actual flow temperature has been above the set flow temperature for the set value.
Cooling 10 ...
20 ...
100 K
x
md This setting stops the heat pump when the actuafilow temperature has been below the set flow temperature for the set \
L
n value.
The heat pump will start when the actual flow temperature has~een above the set flow temperature for the set
value. I
Table 14 Settings for the pumps in the heat pump
6.1.2 Settings for the heating pumps
The circulation heating pump in the appliance conveys the heated water
from the condenser to the DHW cylinder, a buffer cylinder or directly to
the heating system. If there are more than one heat pump installed. you
will need to choose between heat pump
1
and heat pump
2.
The heating pump is in operation when the compressor is running. When the compressor is off, the pump is also
off.
On The heating pump runs permanently.
3 ... 15K Permissible temperature differential between the heat pump flow and return in heating mode.
I
Temp.diff. TC3/TCO heating
Temp.diff. TC3/TCO cooling
I
Brine pump operating mode
2 ... 10 K Permissible temperature differential between the heat pump flow and return in cooling mode.
- - l
Automat - :- ic- - : - ' Th -e-:- bn - :-' n -e-pu - m -p is in operation when the compressor is running. When the compressor is off, the pump is also off.
--<
Permanently The brine pump runs permanently
Yes
The brine pump runs when the heat pump is in cooling mode.
I
Brine p. on in cooling op.
- -
- -
- - - - - - - -
No
Temp. diff. TBO/TBI heating 3 ... 10K
I
t~emp.
diff. TBO/TB1 cooling
2 ... 10 K
-----+
Min. inlet brine temp. '10 ... 0 D C
Max. brine temp. inflow
t
0 ... 40 D C
Min. brine temp. drain
·10 ...
0 "C T
~
brine temp. drain
0 ... 40 D C
----
Table 15 Settings for the pumps in the indoor unit
6.1.3 Settings for the external connections
The brine pump does not run when the heat pump is in cooling mode.
Desired temperature differential between the brine flow and return in heating mode.
---
Desired temperature differential between the brine flow and return in cooling mode.
-
Minimum temperature of the brine flow when it enters the heat pump
Maximum temperature of the brine flow when it enters the heat pump
Minimum temperature of the brine return when it leaves the heat pump
Maximum temperature of the brine return when it leaves the heat pump
----
The
4
external connections (for
A/W
split only number
1
and
4
are
available) are configured in this menu. To change the settings for an
external connection, the menu for the external connection must be
opened first. It is possible to make multiple settings at the same time,
e.g. setting
Block DHW operation
and
Block heating mode
to
On
at the
same time. Depending on the system design, you will need to choose
between heat pump
1
and heat pump
2.
The
EVU blocking time1 on ( ... 3)
menu items are only
available in the
External connection 1
menu.
If the
External connection 1
>
EVU blocking time 1
on ( ...
3) menu item is setto "On", the smart grid function
is activated automatically for external connection
4
and
the
External connection 4
menu can no longer be set
Menu item Adjustment range description
Logic ext connection 1 ... 4 Open contact
Open contact at external connection 1 ...
4
is interpreted as ·On".
i
Closed contact Closed contact at external connection 1 ... 4 is interpreted as "On".
Table 16 Settings for the external connections
of
the heat pump
-
.-
HPC,lOO -
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720821 "21201 nO~1
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