Viessmann Vitocal 350-A AWHI 351.A14, Инструкция по установке и обслуживанию

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49
Connecting the temperature limiter, part no. 7151 728,
7151 729
B
to the mixer extension kit
M
1~
C
B
A
sÖ
sÖ
N
?
Fig. 49
A Connect plug sÖ to the extension kit.
B
Temperature limiter
C
Heating circuit pump M3/HC3
Expansion PCB on main PCB (operational components 230 V~)
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 corresponding relay
must not be exceeded.
■ The stated current indicates the max. switching cur-
rent of the switching contact (observe the total cur-
rent of 5 A).
■ Controls for external heat source and central fault
messages are unsuitable for safety LV.
Set the required parameters during commissioning;
see from page 73.
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
Heat pump control unit electrical connections
(cont.)
5692878
Installation