Product Information; Important Notices On Use; Description Of The Solar Thermal Systems; Description Of The Solar Functions - Bosch MS 200 Manual

Product information

2 Product information
• The purpose of the module is to control the actuators (e.g. pumps) of
a solar system, transfer or charging system.
• The module is used to record the temperatures required for the
functions.
• The module is suitable for energy-saving pumps.
• Configuration of the solar system with a user interface plus BUS
interface EMS 2/EMS plus (not possible with all user interfaces).
In these instructions, a corresponding symbol appears next to the
functions and menu items, if it is not advisable for them to be used in
combination with the user interface HPC 400/HPC 410/HMC300/
HMC310 of a heat pump ( ).
The combination options for the modules are shown in the connection
diagrams.
2.1

Important notices on use

WARNING:
Risk of scalding!
▶ If DHW temperatures above 60 °C are set or thermal disinfection is
switched on, a mixing unit must be installed.
The module communicates via an EMS 2/EMS plus interface with other
EMS 2/EMS plus-enabled BUS nodes.
• The module may be connected exclusively to user interfaces with the
EMS 2/EMS plus (Energy Management System) BUS interface.
• The functional scope depends on the user interface installed.
Detailed information about user interfaces can be found in the
technical guides and the manufacturer's website.
• The installation space must be suitable for the IP rating stated in the
module specifications.
2.2

Description of the solar thermal systems

Many solar thermal systems can be implemented by expanding the
functions of a solar system. You will find examples of possible solar
systems in the connection diagrams.
Solar thermal system (1)
Basic solar thermal system for solar DHW heating
• If the collector temperature exceeds the temperature at the bottom of
the cylinder by the set switch-on temperature differential, the solar
pump is switched on.
• Regulation of the flow rate (Match-Flow) in the solar circuit via a solar
pump with PWM or 0-10 V interface (adjustable).
• Monitoring of the temperature in the collector array and in the
cylinder.
2.3

Description of the solar functions

Adding functions to the solar thermal system forms the required solar
system. Not all functions can be combined with each other.
22
0 010 013 340-001
2.3.1

Central heating backup (A)

Solar central heating backup with buffer or combi cylinder (
• If the cylinder temperature exceeds the return temperature of the
heating system by the set switch-on temperature differential, the
cylinder is integrated in the return via the 3-way valve.
2.3.2

Cylinder 2 with valve (B)

Cylinder with high priority/low priority regulation via 3-way valve
• High priority cylinder selectable (1st Cylinder - at the top, 2nd
cylinder - at the bottom).
• Cylinder charging only switches over to the low priority cylinder via the
3-way valve if the high priority cylinder cannot be heated any further.
• While the low priority cylinder is being heated, the solar pump is
switched off at adjustable test intervals for the duration of the test in
order to check whether the high priority cylinder can be heated up
(change-over check).
2.3.3

Cylinder 2 with pump (C)

2nd cylinder with high priority/low priority regulation via 2nd pump
function same as Cylinder 2 with valve (B), however the high priority/low
priority regulation is not via the 3-way valve, but via the 2 solar pumps.
The Collector array 2 (G) function cannot be combined with this
function.
2.3.4

Central heating backup SP 2 (D)

Solar central heating backup with buffer or combi cylinder (
• Function equivalent to Central heating backup (A), but applies to
the 2nd cylinder. If the cylinder temperature exceeds the return
temperature of the heating system by the set switch-on temperature
differential, the cylinder is integrated into the return via the 3-way
valve.
0 010 013 341-001
)
0 010 013 342-001
0 010 013 343-001
0 010 013 344-001
)
MS 200 – 6720879925 (2017/11)