Operating instructions

124
Operational components 230 V~
Plug Terminals Function Explanation
fÖ
Power supply PCB Factory connection
sYÖ
210.1
210.2
Compressor control
via EEV controller
(refrigerant circuit con-
trol)
■ Heat demand: Contact closed,
210.2 is 'live'
Factory connection
210.1
210.2
End of safety chain 'Live' in case of fault-free safety
chain
sYA
211.1 Primary pump, well
pump control
■ Max. output: 200 W
Factory connection
211.2 Secondary pump (for
underfloor heating cir-
cuit in series with the
temperature limiter as
maximum temperature
limiter for underfloor
heating system)
■ In systems without a heating
water buffer cylinder, no other
heating circuit pump is required
(see terminal 212.2)
■ Max. output: 130 W
Connect on site
211.3 Control of the instanta-
neous heating water
heater
Accessories
■ Output 10 W
Connect on site
211.4 Three-way diverter
valve heating/DHW
Only type 242: And
control of the cylinder
primary pump
Factory connection
211.5 NC-Box control (natu-
ral cooling)
Connect on site
sYS
212.2 Heating circuit pump
for heating circuit with-
out mixer (A1)
■ This pump is installed in addition
to the secondary pump if a heat-
ing water buffer cylinder is instal-
led.
■ Max. output: 100 W
Connect on site
212.3 DHW circulation pump ■ Max. output: 50 W
■ Voltage: 230 V
Connect on site
212.4 Solar circuit pump ■ Max. output: 130 W
■ Voltage: 230 V
Connect on site
Connection and wiring diagrams
Overview of the PCBs and connection options
(cont.)
5441 603 GB