Potterton SIRIUS FS, Инструкция по установке и обслуживанию

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Sirius FS
26
GB/IE
0 - 10V direct heating circuit temperature control (H2 Expansion Modules 1-3)
The operation and flow temperature output of the boiler can be controlled directly
using a 0 - 10VDC signal. Once activated, the boilers will remain in operation as long as
the voltage on H2 remains above 0.15 VDC.
NB. This control method cannot be used in conjunction with remote enable to
control the heat output of a heating circuit, as remote enable will turn off this
function. 0-10v only becomes active when the heating circuit(s) are in standby mode.
External / BMS controlled circulation pump essentials
When using a BMS or external control to operate the boiler, it is essential that the
pump circulating water around the boiler is interlocked with the demand for heat from
these controls, so that it should not be possible for the boiler to have a heating demand
without the circulation pump being in operation.
It is also essential that there is adequate provision of an over-run of the circulation
pump after the boiler has satisfied the heating demand, in order to prevent damage to
the heat exchanger. A minimum over-run time of 3 minutes is advised.
NB. Even in standby mode, the built in frost protection program will activate when the
temperature detected inside the boiler drops below 5
O
C. This results in the boiler
switching on its burners, until the water temperature inside the boiler reaches 16
O
C, at
which point the burners switch off and the boiler returns to standby mode again. The
circulation pump MUST operate during this process.
Failure to provide adequate water circulation to the boiler, via operation of a
pump, when the gas burners are in operation may result in heat exchanger
damage and will invalidate the manufacturers warranty.
X1
X2
L
N
QX23
QX22
QX21
N
N
H2
M
BX21
BX22
U+
M
Module No
L
N
QX23
QX22
QX21
N
N
H2
M
BX21
BX22
U+
M
Module No
X1
X2
0-10 VDC Output
+
Siemens
Parameter
Parameter
description
Parameter setting Notes
6020
Function extension
module 1
Multifunctional
H2 can be freely
configured
6046
Function of input H2
module 1
Consumer request
VK2 10V
0 ‐ 10V signal to control
flow temperature
setpoint
6047 Contact type H2 NO or NC
Not relevant to this
function
6049 Voltage valve 1 H2 0.5Vdc
Voltage at which function
value 1 applies
6050 Function value 1 H2 355
At voltage value 1 the
flow temperature
setpoint is 35.5
°
C
6051 Voltage valve 2 H2 10.0Vdc
Voltage at which function
value 2 applies
6052 Function value 2 H2 820
At voltage value 2 the
flow temperature
setpoint is 82.0 ° C
Example of 0 ‐ 10V setup using expansion module 1