Electrical Connections; General Information - Alpha-InnoTec HT 6Split Installation And Operating Manual

6 Electrical connections

General information

The entire electrical equipment, apart from outdoor
temperature sensors, room sensors, and current in-
tensity meters, has been connected according to fac-
tory settings.
• Disconnect the indoor module before performing
tests of electrical system insulation in the building.
If the building is equipped with a differential
•
switch, HT 6Split / HT 12Split must be equipped
with a separate switch.
• The diagram of indoor module connections can
be found in section „Diagram of electrical connec-
tions".
• Do not lay communication and signal cables to
external contacts near high-voltage cables.
• Minimum cross-section of communication and
signal cables to external contacts must total
0.5mm² with the length of up to 50 m, for example
EKKX or LiYY, or similar.
• The minimum cross-section of the power cables
must be between 2.5 mm² and 4 mm².
• When laying cables in HT 6Split / HT 12Split,
apply cable passes UB1 and UB2 (as marked in
the illustration). In UB1 and UB2, cables are input
through the entire indoor module from the back
wall towards the front wall.
IMPORTANT
As long as the heating circuits have not been filled with
the heating medium, and if the central heating system
has not been vented, the switch (SF1) in controller
cannot be set in positions „I" or „ ". Otherwise, the
temperature limiter, thermostat and flow-through heat-
er can be damaged.
IMPORTANT
The electrical installation and maintenance service
must be performed under the supervision of a qualified
power technician with relevant qualifications. Before
starting any maintenance works, power supply must be
cut off using an automatic switch. The electrical instal-
lation and cabling must be executed according to appli-
cable regulations.
IMPORTANT
When setting SF1 to „ " - the HT 6Split / HT 12Split
unit switches the QN10 valve to C.H. and heating takes
place according to BT30 thermostat. Hot water it is not
heated during „ ".
HT 6Split
HT 12Split
FA1
UB1
X0
AA23
FA2
X10
BT30
X1
FD1
K1A-K3A
K2
AA2
AA2:X15
LEGEND
X0 Voltage terminal block 400V~/230V~
X1 Voltage terminal block 230V~
X2 Voltage terminal block 230V~
X10 Voltage terminal block 230V~
Circuit breaker (to internal mod-
FA1
ule)
K1A-K3A
Submersible heater contact
BT30 Thermostat, standby mode
AA3
Sensor card
AA23
Communication card
AA7
Relay card
FA2
Circuit breaker (L Split)
FD1 Temperature limiter
UB1 Cable pass
UB2 Cable pass
Alarm relay
K2
AA2
Main card
AA2:X15
Low voltage terminal block
AA2:X4
Low voltage terminal block
AA8
Titanium anode card
AA27
Relay card
AA3
X2
AA7
UB2
AA27
AA8
AA2:X4
Chapter 6 |
Electrical connections 27