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.
•
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
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
er can be damaged.
IMPORTANT
The electrical installation and maintenance service
starting any maintenance works, power supply must be
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
UB1
X0
BT30
X1
FD1
K2
LEGEND
X0
X1
X2
-
BT30
-
FD1
UB1
UB2
K2
Voltage terminal block 400V~
Voltage terminal block 230V~
Voltage terminal block 230V~
Circuit breaker (to internal mod-
ule)
Submersible heater contact
Thermostat, standby mode
Sensor card
Communication card
Relay card
Circuit breaker (L Split)
Temperature limiter
Cable pass
Cable pass
Main card
Low voltage terminal block
Low voltage terminal block
Titanium anode card
Relay card
Chapter 6 | Electrical connections
X2
UB2
25