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

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Terminals Function Explanation
X3.8
X3.9 Contact humidistat
or
Jumper
Requires floating contact:
■
Closed: Safety chain has continuity.
■
Open: Safety chain interrupted; heat pump shut
down.
■
Breaking capacity 230 V~, 0.15 A
Connect on site:
■
Connected in series, if both safety components
are installed.
■
Insert jumper if no safety components are
installed.
X3.10
X3.11 Fault message, lag heat pump in a cas-
cade
or
Jumper
Requires floating contact:
■
Closed: No faults
■
Open: Fault
■
Breaking capacity 230 V~, 0.15 A
No jumper should be installed if a message con-
tact is connected.
X3.12
X3.13
or at external
H1 extension "External demand" signal (external starting
of compressor and pumps, mixer in control
mode or OPEN, changeover of operating
status for several system components) Requires floating N/O contact:
■
Closed: Demand
■
Open: No demand
■
Breaking capacity 230 V, 2 mA
Note
■
These or other external functions, such as
swimming pool heating, cascade or external set
value default can alternatively be connected via
external H1 extension.
"External H1 extension" installation in-
structions
■
If a swimming pool heating facility is connected
to external H1 extension,
no other external
function can be connected to external H1 exten-
sion.
X3.17
X3.18 MCB/fuse F1 6.3 A (slow)
X5/X7 Control cable 230 V~ Terminals for connecting cable to the control pan-
el
Controller and sensor PCB (sensors)
Set the required parameters during commissioning;
see from page 73. Note
■ Plug F11:
Nothing
should be connected to plug F11 on site.
■ Flow temperature sensor for heating circuit with
mixer (M3):
The flow temperature sensor for one heating circuit
with mixer (M3) is connected to the mixer extension
kit (accessories).
Plug Sensors/terminals Type
(PTC)
F0 Outside temperature sensor Ni500
F4
(X5.6/X5.7) Buffer temperature sensor Pt500
Installation sequence
Heat pump control unit electrical connections
(cont.)
5692878
Installation