Keston HEAT 2 45 Installation & Servicing page 41

Shunt Pump:
Shunt Pump. If the boiler has a Plant
Shunt Pump connected between the
Flow and Return headers then select the
output that is used to control it from the
list. Otherwise select 'None'.
Once an output has been configured the
selected function is shown in brackets
behind the output name.
Select loc'n of shunt pump
None
PWM/0-10V ()
MFR1 ()
Select loc'n of shunt pump
None
PWM/0-10V ()
MFR1 ()
MFR2 ()
Select loc'n of shunt pump
PWM/0-10V ()
MFR1 ()
MFR2 ()
MFR3 ()
Select loc'n of shunt pump
MFR1
MFR2 ()
MFR3 ()
MFR4 ()
Select loc'n of shunt pump
MFR2 ()
MFR3 ()
MFR4 ()
Select loc'n of shunt pump
MFR3 ()
MFR4 ()
System Fault Indication:
If the Master boiler has Slave boilers or
Extension Modules connected and the
requirement to signal errors for the plant
then select the output that is used to
control it from the list. Otherwise select
'None'.
System fault indication
None
PWM/0-10V ()
MFR1 (HC1 pump)
System fault indication
None
PWM/0-10V ()
MFR1 ()
MFR2 ()
System fault indication
PWM/0-10V ()
MFR1 ()
MFR2 ()
MFR3 ()
Installation & Servicing
SECTION 2 - INSTALLATION
System fault indication
MFR1 ()
MFR2 ()
MFR3 ()
MFR4 ()
System fault indication
MFR2 ()
MFR3 ()
MFR4 ()
System fault indication
MFR3 ()
MFR4 ()
0-10V Input:
If the Plant is to be controlled by a single
0-10V signal, this can be configured.
Otherwise set to 'None'.
The options are Capacity or Temperature
control, with additional parameters for
Temperature control:
Configure 0-10V input
None
0-10V Capacity
0-10V Temperature
Configure 0-10V input
None
0-10V Capacity
0-10V Temperature
Configure 0-10V input
0-10V Capacity
0-10V Temperature
0-10V input Temp. Setp. 0V:
Temp. setp. 0V
8 º C
Done
Temp. setp. 0V
8 º C
Done
0-10V input Temp. Setp. 10V:
Temp. setp. 10V
80 º C
Done
Temp. setp. 10V
80 º C
Done
Configure 0-10V Parameters:
Configure 0-10V parameter?
No
Yes
Configure 0-10V parameter?
No
Yes
Voltage life zero. This setting determines
the minimum keep alive voltage where the
system expects a voltage to be present on
an operational interface, anything below
this indicates a wiring fault:
Configure voltage life zero
2.0V
Done
Configure voltage life zero
2.0V
Done
Voltage demand. This setting determines
the switching point at which demand is
expected by the system, anything below
this is at keep alive voltage:
Configure voltage demand
3.0V
Done
Configure voltage demand
3.0V
Done
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