LAMBERTI ELEKTRONIK LATHERM SOL MAXIMAL, Commissioning Manual

Page: 9 / 52

Page 9
5.4. Relay connector assignment
The following table shows whether the selected additional functions can be realised with your system layout
and is to be understood as follows:
For the relay assignments shown in the white fields, the relays must be connected exactly as shown in the
table. Possible additional functions, for which relays can be assigned, are shown in the grey fields. If these
additional functions are used, the relays must also be connected exactly as shown in the table. Only the free
relays (empty fields in the table) can be assigned individually.
The relays for the anti-Legionella, hot water overturn and circulation pump functions can be freely selected
unless otherwise assigned (empty fields in the table or unused additional functions in the grey fields).
System layout Relay
1 2 3 4 5 6 7
R 1
Solar pump
Solar pump
for storage
reservoir 1
Solar pump Solar pump
Solar pump
for collector 1 Solar pump
for collector 1 Solar pump
for collector 1
R 2
Solar pump
for storage
reservoir 2
Three-way
valve for
storage
reservoir 1
and storage
reservoir 2
Valve for
storage
reservoir 1
Solar pump
for collector 2 Solar pump
for collector 2 Solar pump
for collector 2
R 3
Pump for
external heat
exchanger or
bypass valve Pump for
external heat
exchanger or
bypass valve
Valve for
storage
reservoir 2
Pump for
external heat
exchanger or
bypass valve
Valve for
storage
reservoir 1
Three-way
valve for
storage
reservoir 1
and storage
reservoir 2
R 4
Valve for
heating
support Valve for
heating
support Valve for
heating
support
Valve for
heating
support or
pump for
external heat
exchanger or
bypass valve
Valve for
heating
support Valve for
storage
reservoir 2
Valve for
heating
support or
pump for
external heat
exchanger or
bypass valve
The low-voltage relay (NVR) is available as an output (potential-free low-voltage contact) for the thermostat
and temperature comparison functions.
Note!
Safety extra-low voltage is not to be connected with the relays on the high-voltage side (R1 to R4).
Only safety extra-low voltage may be connected with the low-voltage relay (NVR).
!
Installing and connecting the controller