Installation and operating instructions Siriux/Siriux-D/Siriux-O
61
English
operating mode (load-sensitive activation/deactivation) achieves additional
energy savings compared to conventional peak-load operation.
Parallel operation of two single pumps is only possible for pumps for which there
is an equivalent double pump type.
• If one of the pumps has a
breakdown/fault
, the other pump runs as single pump
in the operating modes specified by the master. The reaction in the event of a
fault depends on whether HV or AC operating mode is active (see Chapter 6.2.1).
• In the event of a
communication failure
(e.g. due to the power supply failing at
the master pump): After 5 seconds the slave starts and runs according to the last
specification of the operating modes by the master pump.
•
Pump cycling:
If only one pump is running (in main/standby, peak load or set-
back operation), pump cycling takes place after every 24 hours of effective run-
ning time. Both pumps run at the time of pump cycling in order to ensure that
operation is not interrupted.
NOTE: Both pumps always run if both manual control mode and synchronous
mode are active at the same time. No pump cycling takes place.
No pump cycling takes place during active night reduction after 24 h of effec-
tive running time.
•
SSM:
The contact of the collective fault signal (SSM) can be connected to a cen-
tral control centre.
SSM contact is only assigned at the master pump:
Only the faults of the master are
indicated ("SSM single" factory setting). If the faults are to be indicated by both mas-
ter and slave pumps, an IR operating and service unit (accessory) must be used to
program the SSM function at the master pump to "SSM combined" (see Installation
and operating instructions for “Salmson Pump Control”). The signal then applies to
the entire unit. Exception, in the event of a power failure of the master pump.
SSM contact is assigned at master and slave pumps:
Any fault at master or
slave pumps will be indicated as individual fault signal.
6.2.6 Definition of the symbols on the LC display
NOTE: The legibility of the display is significantly dependent on the observer's
perspective. Wide fluctuations in the ambient temperature accelerate ageing of
the display and can result in restricted legibility of the display.
Symbol
Meaning
Automatic switchover to setback operation is enabled. Activation of
setback operation takes place at minimum heating output requirement.
Pump runs in setback operation (night reduction) at min. speed.
(without symbol)
Automatic switchover to setback operation disabled, i.e. pump runs
solely in control mode.
