Viessmann BW 30 .CS Series, Инструкция по установке и обслуживанию

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37
Terminals Analogue inputs and outputs Note
18X4 External set value 0-10 V
27X5 Temperature sensor, cylinder heating, bottom
tW
Pt 1000
28X6 Temperature sensor, flow, heating circuit 1
q-Q
Pt 1000
29X6 Temperature sensor, flow, heating circuit 2
w-Q
Pt 1000
30X6
Temperature sensor, flow, heating circuit 3 e-Q
Pt 1000
22X4 Temperature sensor, DHW, top
eQ
Pt 1000
22X6 Temperature sensor, DHW, bottom
eO
Pt 1000
22X8 Temperature sensor, flow, DHW heating
eI
Pt 1000
40X7
Temperature sensor, heat exchanger residual heat, primary inlet r-Z
Pt 1000
40X8 Temperature sensor, heat exchanger residual heat, primary outlet r-U Pt 1000
25X8 Temperature sensor, flow, external heat source
wE
Pt 1000
37X0 Temperature sensor, coolant buffer cylinder, top
iW
Pt 1000
37X2 Temperature sensor, coolant buffer cylinder, bottom
iE
Pt 1000
37X4 Temperature sensor, flow, coolant buffer cylinder charging uW Pt 1000
Danger
Incorrectly executed electrical installations can
result in injuries from electrical current and dam-
age to the appliance.
All sensor and signal leads (0-10 V) must be
shielded with copper braiding and have a mini-
mum cross-section of 0.5 mm
2 .
Specified lead type: CV
Power supply
Isolators for non-earthed conductors
■
The integral ON/OFF switch must simultaneously
isolate all non-earthed conductors from the mains
with a minimum contact separation of 3 mm.
Danger
Incorrectly executed electrical installations can
result in injuries from electrical current and dam-
age to the appliance.
Connect the power supply and implement all
safety measures (e.g. RCD circuit) in accord-
ance with the following regulations:
■
IEC 60364-4-41
■
VDE regulations
■
Technical connection requirements specified
by the local power supply utility
Danger
The absence of component earthing can lead to
serious injury from electric current if an electrical
fault occurs.
■
Re-establish all earth connections of the heat
pump.
■
Heat pump and pipework must be grounded
to the equipotential bonding of the building.
Danger
Incorrect core assignment can result in serious
injury and damage to the appliance.
Never interchange cores "L" and "N".
■
Consult your power supply utility, which may offer dif-
ferent supply tariffs for the power circuits.
Observe the technical connection requirements of
the power supply utility.
■
The power-OFF assignment is made via the type of
connection.
In Germany, the power supply can be cut off for up to
3 x 2 hours per day (24 h).
■
The heat pump control unit/PCB must be supplied
with power
without being interrupted by the power
supply utility. Tariffs subject to possible shutdown
must not be used here.
Install the power supply of the heat pump control unit
and the cable for the power-OFF signal in accord-
ance with the separate "Connection and wiring dia-
gram".
■
Protect the power cable to the heat pump control unit
with a fuse of max. 25 A.
Installation sequence
Electrical connections
(cont.)
5789 986 GB
Installation