6
■
Observe the information on electrical connections in
the installation and service instructions.
■
In the case of a power supply with power-OFF
facility, the power to the control circuit (heat pump
control unit) must be supplied without interruption by
the power supply utility.
■
Identification of electrical equipment (in accordance
with IEC 81346-2):
Example: /7.5
/ = cross-reference
7. = sheet number
5 = current path
Electrical equipment
B Pressure switch, temperature switch, thermal relay
E Instantaneous heating water heater
F Fuse, thermal relay
J Plug-in connector
K Contactors, relays
M Motor, circulation pump, motorised valve, compressor
N Controller
Q Mains isolator, power contactor, output relay
R Start-up resistor
S Control switch
X Terminals, plugs
Y 3-way diverter valve
Notes
Notes
6152053
Service
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