44
Connecting instantaneous heating water heater power supply
Internal unit
N
3/N/PE
400 V/50 Hz
1/N/PE
230 V/50 Hz
L1
N
L1
L3
N
N
N
L1
L2
L1
A
A
B
B
Fig. 43
A
Internal unit wiring chamber (see chapter "Over-
view of connections":" Internal unit")
B
Jumpers
■
Recommended power cable:
400 V~:
5 x 2.5 mm
2
230 V~:
7 x 2.5 mm
2
■
Fuse rating max. 16 A
■
Economy tariff and power-OFF can be used
Power supply with power-OFF: without on-site load disconnect
The power-OFF signal is connected directly to the heat
pump control unit. The compressor is "forced" off when
power-OFF is enabled.
Parameter
"Output for instant. heating water heater
at power-OFF 790A"
determines whether and at what
stage an instantaneous heating water heater remains
operational during the power-OFF period.
Note
Observe the technical connection conditions of the rel-
evant power supply utility.
Installation sequence
Power supply
(cont.)
5776 028 GB
Installation
Summary of Contents for AWT 221.A04
Page 77: ...77 Maintenance Checking the fuses cont 5776 028 GB Maintenance...
Page 87: ...87 Indoor unit parts lists Indoor unit hydraulics cont 5776 028 GB Components...
Page 90: ...90 Indoor unit parts lists Indoor unit cylinder cont 5776 028 GB Components...
Page 137: ...137 Wind direction 11 Wind loads 11 Keyword index Keyword index cont 5776 028 GB...
Page 138: ...138 5776 028 GB...
Page 139: ...139 5776 028 GB...
