33
Internal unit: Expansion PCB on main PCB (function compo-
nents 230 V~)
Information regarding the connection
values
■ The specified output is the recommen-
ded connected load.
■ The total output of all components con-
nected directly to the heat pump con-
trol unit must not exceed 1000 W (e.g.
pumps, valves, message facilities,
contactors).
If the total output is < 1000 W, the indi-
vidual rating of a component (e.g.
pump, valve, message facility, contac-
tor) can be greater than specified.
However, the breaking capacity of the
corresponding relay must not be
exceeded.
■ The stated current indicates the max.
switching current of the switching con-
tact (observe the total current of 5 A).
■ Safety LV is unsuitable for controlling
external heat sources.
Set the required parameters during com-
missioning; see from page 68.
Plug
sXS
Terminals
Function
Explanation
222.1
Mixer motor control for ex-
ternal heat source
Signal mixer CLOSED
Connection values:
■ Output: 10 W
■ Voltage: 230 V~
■ Max. switching current: 0.2(0.1) A
222.2
Mixer motor control for ex-
ternal heat source
Signal mixer OPEN
Connection values:
■ Output: 10 W
■ Voltage: 230 V~
■ Max. switching current: 0.2(0.1) A
Installation sequence
Electrical connections
(cont.)
5782 176 GB
Installation
