Explanations Of The System Solutions - Bosch Compress 3400i AWS Installation Manual

Technical information
Heat distribution Type of valves in
system
UF heating/ Fan coils No auto control valves
or on/off valves with
open circuits
On/off valves with no
open circuits
No open circuits and
differential pressure
Radiators No auto control valves
or on/off valves with
open circuits
On/off valves with no
open circuits
No open circuits and
differential pressure
Radiators No auto control valves
or on/off valves with
open circuits
On/off valves with no
open circuits
No open circuits and
differential pressure
1) Buffer size must be more than 35l.
2) Direct system only if minimum volume and flow are permanetly met.
3) Buffer size must be more than 40l.
4) Buffer size must be more than 13l.
5) Buffer size must be more than 15l.
Table 11 System solutions for underfloor heating, fan coils and radiators

11.3.1 Explanations of the system solutions

General
SEC 20 Installation module integrated in the heat pump
module
HPC 410 Control unit
CR 10 H Room controller (accessories)
T1 Outdoor sensor
MK2 Humidity sensor (accessory)
CW1 DHW cylinder (accessory)
VW1 Diverter valve (accessory)
PW2 DHW circulation pump (accessory)
TW1 Hot water temperature sensor
Heating circuit without mixer
PC1 Circulation pump, heating circuit
T0 Flow temperature sensor
28
Outdoor unit
system
CS3400iAWS 6-10 OR-
S
CS3400iAWS 4 OR-S
CS3400iAWS 6-10 OR-
S
Open system size (l) Electric booster
heater On/Off
<27
27<40 Electric booster heater
Electric booster heater
>40
-
-
<4
Electric booster heater
4<13
Electric booster heater
>13
-
-
<10
10<15 Electric booster heater
Electric booster heater
>15
-
-
Heating circuit with mixer
MM 100 Heating circuit module (control unit for circuit)
PC1 Pump for heating circuit 2
VC1 Mixer
TC1 Flow temperature sensor, heating circuit 2, 3 ...
MC1 Thermal shut-off valve, heating circuit 2, 3 ...
Compress 3400i AWS – 6721852066 (2023/01)
System solution
3)
- Buffer
2)
Direct system
on bypass
3)
Buffer
off
2)
Direct system
bypass
3)
Buffer
Serial buffer
4)
- Buffer
2)
Direct system
on bypass
4)
Buffer
off
2)
- Direct system
bypass
4)
- Buffer
- Serial buffer
5)
- Buffer
2)
Direct system
on bypass
5)
Buffer
off
2)
- Direct system
bypass
5)
- Buffer
- Serial buffer
or
or
3)
or
or
4)
or
or
5)