Important Notices On Use; Function Definition; Setting The Coding Switch; Scope Of Delivery - Buderus AM200 Installationsanleitung

2.2

Important notices on use

The module communicates via an EMS plus interface with other
EMS plus-enabled BUS nodes.
• When using an alternative heat source, each heating circuit must be
equipped with a mixer. If only one heating circuit exists, an internal
temperature control can be used instead of the mixer.
• If the alternative heat source only heats the DHW, and a conventional
heat source heats the heating water, the conventional heat source
cannot be connected to the terminal OEV of the AM200.
• In addition to the alternative heat source, only use gas or oil-fired heat
sources in a system. Important: no heat pumps with BUS interface
EMS plus allowed; no district heating systems allowed.
• The installation room must be appropriate for the IP rating stated in
the technical data of the module.
• If a DHW cylinder is connected:
– Thermal disinfection cannot be guaranteed with stand-alone
alternative heat sources.
– The conventional heat source controls the DHW, including
thermal disinfection, directly.
– Thermal disinfection may have to be monitored manually.
Observe the heat source instructions.
• If the alternative heat source is charging the DHW cylinder and the
AM200 is actively controlling the alternative heat source,
(see RC310 DHW settings > DHW system I and DHW system II >
Flow temp. increase), the set temperature should as far as possible
match the set flow temperature of the alternative heat source when
charging the DHW cylinder.
• If external DHW is installed downstream of the low loss header, care
must be taken to ensure that the DHW settings > DHW system I >
Start cyl. primary pump in the RC310 are set to Immed..
2.3

Function definition

The module allows an alternative heat source with water routing to be
connected to a EMS plus control system.
Cylinder charging/discharging: the availability of and demand for heat
in the cylinder is measured via two cylinder temperature sensors.
By controlling valves and pumps accordingly, the module ensures that
heat energy demand is met by charging and discharging the cylinder.
If required, the module also controls a mixer with temperature sensor in
the system flow.
Return temperature increase: the module controls the pump and valve
via the flow temperature and, if applicable, the return/flue gas
temperature at the alternative heat source in order to maintain a
minimum return temperature at the alternative heat source.
Control of active alternative heat source: the module can switch
electrically activatable alternative heat sources (e.g. pellet stove with
water routing) on/off directly depending on the heat energy demand,
or modulate these if possible.
Blocking/releasing: if there is sufficient heat in the buffer cylinder,
the conventional heat source is blocked and bypassed via a bypass valve.
If the alternative heat source cannot supply enough heat to the buffer
cylinder, the conventional heat source is released. The interlock can be
applied for the DHW and heating separately via a EMS plus control system.
Heating circuit pump for heating circuit 1: the module can switch the
pump of the first heating circuit in a system with a stand-alone alternative
heat source (AM200 address 10) on or off, depending on the heat
energy demand.
AM200 – 6720884574 (2018/04)
2.4

Setting the coding switch

4 5 6
3
2
1
0
Coding Function of module
0 Off (as-delivered condition) or Reset module settings
1 System with alternative heat source and conventional heat source
(integrated system)
2 - 9 Without function
10 Alternative heat source as only heat source (stand-alone control)
Table 2 Coding and function
2.5

Scope of delivery

Fig. 2 at end of document:
[1] Module AM200
[2] Bag with strain relief
[3] Installation instructions
[4] 3 temperature sensors (10 k, 9 mm), can be used as flow,
return or cylinder temperature sensor
2.6

Specifications

This product conforms to European directives and
supplementary national requirements in design and
operation. Compliance is demonstrated by the CE marking.
You can request the conformity declaration of the product. If you require
this, contact the address on the back cover of these instructions.
Specifications
Dimensions (W × H × D)
Maximum conductor cross-section
• 230 V terminal
• Extra-low voltage terminal
Rated voltages
• BUS
• Module mains voltage
• User Interface
• Pumps and mixers
Fuse
BUS interface
Power consumption – Standby
Max. power output
Max. power output per connection
• PR1
• VB1, VR1, VR2, OA3
Measuring range of all flow/return/
buffer cylinder temperature sensors
• Lower fault limit
• Display range
• Upper fault limit
Measuring range of outside
temperature sensorT1
• Lower fault limit
• Display range
• Upper fault limit
Product Information
7
8
9
10 10
0010014208-001
246 × 184 × 61 mm
(for more dimensions  Fig. 3 at
the end of this document)
2
• 2.5 mm
2
• 1.5 mm
• 15 V DC
(reverse polarity protected)
• 230 V AC, 50 Hz
• 15 V DC
(reverse polarity protected)
• 230 V AC, 50 Hz
230 V, 5 AT
EMS plus
< 1 W
600 W
• 400 W (high-efficiency pumps
permissible; <30 A for 10 ms)
• 10 W
• < – 10 °C
• 0 ... 100 °C
• > 125 °C
• < – 35 °C
• – 30 ... 50 °C
• > 125 °C
2
15