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6
Wiring diagram
6 - 2 External connection diagram
EKHBH(X)008AA
EKHBH(X)008AA
1
Power supply
6
Unit power supply: 230V + earth
Backup heater power supply (3/6/9kW): 400V or 230V + earth
Optional power supply
Booster heater power supply (3kW): 400V or 230V + earth
Optional parts
Sanitary tank
Q3L - Q1T
Clixon
Thermostat
2 way valve
Power supply booster
heater
Q2L - Clixon booster heater
R5T - Thermistor water
temperature
32
• Indoor units • EKHBH-X008AA
3 core
2 way valve
2 core
5 core
230V or400V
2 core
Signal
Thermistor cable
Note: min. distance to
power cable = 3cm
TM
• Altherma
• Indoor units
Standard parts
Outdoor unit
For more details please check unit wiring
X1M:L-N-Earth
diagram
X2M:1-2-3-Earth
4 core
X1M:9-10-11-Earth
Only for EKSWWU*V3
4 core
X1M:7-8-Earth
2 core
NO valve:
NC valve:
2 core
Indoor unit
User interface
Field supply
Room thermostat
A3P (optional)
2 way valve
M2S (EKHBX Units)
for cooling mode
3 way valve
M3S (when EKSWW is installed)
selection sanitary-floorheating
3TW56719-6A
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