60
Clamps
Function
Explanation
435XD1
1: Valve open
2: Valve closed
3: 24 VDC
4: 0 VDC
PE: Earth conductor
2-way motorised damper,
heating water buffer cylinder
inlet
Connection values
■
Voltage: 24 VDC
■
Max. switching current: 5 A
551XD1
1: R+
2: R-
Temperature sensor, air/brine
heat exchanger brine inlet
Pt 1000
551XD3
1: R+
2: R-
Temperature sensor, air/brine
heat exchanger brine outlet
Pt 1000
551XD5
1: R+
2: R-
Temperature sensor, air/brine
heat exchanger air inlet
Pt 1000
551XD7
1: R+
2: R-
Temperature sensor, air/brine
heat exchanger air outlet
Pt 1000
800KF6
1: EtherCAT IN
EtherCAT bus connection
From: Heat pump
To: Hydraulic module defrost
box
Connection with RJ45 plug directly to socket of
bus coupler EK1100
Power supply
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 system component earthing can
lead to serious injury from electric current if an
electrical fault occurs.
■
Restore all earth connections.
■
The appliance and pipework
must
be connec-
ted to the equipotential bonding of the build-
ing.
Danger
Incorrect core assignment can result in serious
injury and damage to the appliance.
Never interchange cores "L" and "N".
Electrical connection requirements
Note
Types and cross-sections of connection cables/leads
must be determined by an authorised electrician in
accordance with local regulations.
Installation procedure, hydraulic module defrost box
Electrical connections
(cont.)
5837251
Service
