Bosch HPC 400 - Energy Saving Tips; Economy Heating;Cooling; DHW Heating on Demand; Frequently Asked Questions (FAQ)

(§) BOSCH
Service menu
The heating system operates independent from the the adjusted outside temperature in the active
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r d (-? H t t tl b I rt ' t 'd t t 22)
opera mg rna e
ea cons an y e ow a ce am au Sl e empera ure. page
I - 30 ... 10 ·C
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If the adjusted outside temperature falls below the value set here. the heating system automatically
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changes from the setback mode into the heating mode (-? Heat constantly below a certain outside
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temperature. page 22) .
Frost protection
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O~QQI
Note : To ensure frost protection for the entire heating system. set outside temperature - dependent frost
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protection . This setting is independent of the set control type .
~m and outdoor temp .
Frost protection is deactivated/activated on the basis of the temperature
Room temperature
selected here { -? Frost protection limit temperature (outside temperature threshold), page 23)
Room and outdoor temp .
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Off Frost protection off
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c-
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Frost prot. limit temp .
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20 ... 5 ... 10·C -? Frost protection limit temperature (outside temperature threshold) . page 23
(outside temperature
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Z.
threshold)
r-:-:- - -
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Heating/Cooling Off
(Ot+!j
{q~ ,., J ~ ... ....,-
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Automatic mode The heat pump automatically switches between heating mode and cooling mode subject to the outside
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temperature .
I Constant heating
.
The heat pump runs solely in heating mode .
Constant cooling The heat pump runs solely in cooling mode .
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Heating mode from
10 ... 17 . .. 30·C If the outside temperature falls below the value set here. heating mode is activated .
Cooling mode from - 20 . .. 28 .. . 35"C
If the outside temperature exceeds the value set here. cooling mode is activated.
Heating direct start limit 1 ... 1 ... 10 K
If the outside temperature falls below the heating mode from temperature (setting value for Heating mode
from) by the value set here . heating mode is activated immediately.
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- -
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Cooling switch-off delay 1.. .4 ... 4Sh
Switch-off delay for cooling mode .
Cooling switch-on delay 1.. . 8 .. . 4Sh
Switch-on delay for cooling mode .
Heating switch-off delay
r-
1 ... 1...4Sh
Switch-off delay for heating mode .
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Heating switch-on delay 1... 4 ... 4Sh
Switch-on delay for heating mode.
Room temp. switch. diff.
-5 ... 2 . .. 5K If the measured room temperature exceeds the set room temperature by the amount set here. cooling
mode is activated (e.g . for 2 K: set room temperature = 23 ·C; measured room temperature = 25·C -
cooling mode is activated)
Dew paint temp . diff.
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2 ... 5 . .. 10 K
Defines the safety margin to the calculated dew point. As a result. the set flow temperature is above the
calculated dew point by at least the value set here .
Min . set flow temperature
10 .. . 10 ... 35"C
If a humidity sensor is installed for the heating/cooling circuit: minimum set flow temperature
10 . .. 17 . .. 35·C
If a humidity sensor is not installed for the heating/cooling circuit: minimum set flow temperature
Mixer
Yes
Selected heating/cooling circuit with mixing valve
No
Selected heating/cooling circuit without mixing valve
Mixer runtime
Mixing valve runtime in the selected heating/cooling circuit
Shown in standard display Yes
The selected heating/cooling circuit is visible in the standard display .
No
The selected heating/cooling circuit is not visible in the standard display .
Table 27 Settings in menu heating/cooling circuit 1 ... 4
HPC400-6720821772(2017/07) 19