Management Of Mixed Systems With The Rvs46 Accessory; Description Of Siemens Model Rvs 46 Accessory; Electrical Connections For The Accessory Rvs 46; Example Of System With Rvs 46 Accessory - Siemens AVS 75.391 Handbuch

7. MANAGEMENT OF MIXED SYSTEMS WITH THE RVS46 ACCESSORY

A system with zones at different temperatures can be managed using the RVS 46 accessory. The RVS 46 controls the low tempe-
rature zones. Each RVS 46 accessory can control just one zone. Systems with more than one zone require an RVS46 accessory
for each zone.
If the appliance is connected to an underfloor system, install a limit thermostat to prevent the latter from overheating.
For a low temperature system, lower the maximum temperature setpoint of the mixed zone setting parameter 741 to a value
not greater than 45°C according to the following table:
Accessory Menu
Temps / mode
RVS46
CH1
7.1

DESCRIPTION OF SIEMENS MODEL RVS 46 ACCESSORY

The RVS 46, connected to one of the OCI 345 interfaces, as described in section 7.2, can control:
• mixing valve.
• Mixed zone pump.
• Temperature sensor.
• Command input, from Control Panel.
Connect a Remote Control to each RVS 46 installed. Heat demand is only possible via the Remote Control, configured
as a room unit.
KEY TO CONNECTORS
230V relay output for MIXED ZONE PUMP
S (Q2- -N)
230V relay output for MIXING VALVE
T (Y2- -N-Y1)
RVS 46 power input
N L (L-N)
p (M-B1) MIXED ZONE TEMPERATURE SENSOR connector
12VDC digital or 0-10VDC analogue programmable
k (H1-M)
input
k (B91-M) EXTERNAL SENSOR input
b (G+ CL- CL+) Control Panel connector
a (MB – DB) OCI 345 connector
7.2

ELECTRICAL CONNECTIONS FOR THE ACCESSORY RVS 46

Connect the device to a 230V~ single-phase power supply with earth. This appliance must only be installed by a qualified installer.
Connect the RVS 46 to the OCI 345 interface of the master boiler via terminals MB and DB of the two units. Connect any addi-
tional RVS 46 in parallel via the same MB and DB terminals. Connect each RVS 46 to a Control panel acting as the room unit of
the controlled zone.
7.3

EXAMPLE OF SYSTEM WITH RVS 46 ACCESSORY

The diagrams in this document are purely indicative and must be backed by a technical thermal analysis.
A FLOW PROBE QAD36
B EXTERNAL SENSOR
C REMOTE CONTROL ACCESSORY
Parameter Value to set
741 < 45°C
D OCI 345 ACCESSORY
E MIXING VALVE
F MIXED ZONE PUMP
21
Description
Maximum mixed zone temperature setpoint
7105035.03 (1-10/11)