34
Internal unit: Main PCB (230 V~ components)
Information regarding the connection values
■
The specified output is the recommended connected
load.
■
The total output of all components connected directly
to the heat pump control unit (e.g. pumps, valves,
message facilities, contactors) must not exceed
1000 W.
If the total output is < 1000 W, the individual rating of
a component (e.g. pump, valve, message facility,
contactor) can be greater than specified. However,
the breaking capacity of the relevant relay must not
be exceeded.
■
The specified current indicates the max. switching
current of the switching contact. Observe total cur-
rent of 5 A.
Set the required parameters during commissioning:
See from page 58.
Plug
sYA
Terminals
Function
Explanation
211.2
Secondary pump
■
In systems without a heating water buffer cylinder, no
other heating circuit pump is required (see terminal
212.2).
■
Connect the temperature limiter to restrict the maximum
temperature for underfloor heating systems (if installed)
in series.
Connection values
■
Output: 130 W
■
Voltage: 230 V~
■
Max. switching current: 4(2) A
Secondary pump connected at the factory; the tempera-
ture limiter must be connected on site.
211.5
AC
Cooling control
3-way diverter valves for heating
water buffer cylinder bypass in cool-
ing mode
Connection values
■
Max. output: 10 W
■
Voltage: 230 V~
■
Max. switching current: 4(2) A
Connect the 3-way diverter valves for the bypass circuit in
parallel.
Plug
sYS
Terminals
Function
Explanation
212.2
A1
Heating circuit pump for heating cir-
cuit without mixer A1/HC1
■
This pump is connected in addition to the secondary
pump if a heating water buffer cylinder is installed.
■
Connect the temperature limiter to restrict the maxi-
mum temperature for underfloor heating systems (if
installed) in series.
Connection values
■
Output: 100 W
■
Voltage: 230 V~
■
Max. switching current: 4(2) A
Installation sequence
Electrical connection
(cont.)
5700 562 GB
Installation
