40
Plug
sYH
Terminals
Function
Explanation
216.1
A1
External hook-up, heating/cooling cir-
cuits:
Central heating demand, heating cir-
cuit A1/HC1
Or
230 V~ digital input:
■
230 V~: Central heating demand for heating circuit
A1/HC1 active
■
0 V: No demand
■
Breaking capacity 230 V, 2 mA
Smart Grid:
Floating contact 1
230 V~ digital input:
■
230 V~: Contact active
■
0 V: Contact not active
■
Breaking capacity 230 V, 2 mA
216.2
A1
External hook-up, heating/cooling cir-
cuits:
Room cooling demand, heating circuit
A1/HC1
230 V~ digital input:
■
230 V~: Room cooling demand for heating circuit
A1/HC1 active
■
0 V: No demand
■
Breaking capacity 230 V, 0.15 A
216.4
Smart Grid:
Floating contact 2
230 V~ digital input:
■
230 V~: Contact active
■
0 V: Contact not active
■
Breaking capacity 230 V, 2 mA
Indoor unit: Expansion PCB on main PCB (230 V~ components)
Information regarding 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 corresponding relay
must not be exceeded.
■
The specified current indicates the max. switching
current of the switching contact. Observe total cur-
rent 5 A.
■
Safety LV is unsuitable for controlling external heat
generators.
Set the required parameters during commissioning:
See page 66 onwards.
Plug
sXS
Terminals
Function
Explanation
222.1
Control of mixer motor for external
heat generator
Signal mixer CLOSE
Connection values:
■
Output: 10 W
■
Voltage: 230 V~
■
Max. switching current: 0.2(0.1) A
222.2
Control of mixer motor for external
heat generator
Signal mixer OPEN
Connection values:
■
Output: 10 W
■
Voltage: 230 V~
■
Max. switching current: 0.2(0.1) A
Installation sequence
Electrical connection
(cont.)
6150148
Installation
