To Connect The Backup Heater Power Supply - Daikin ETVZ16S18EA6V Installer's Reference Manual

9 | Electrical installation

9.3.2 To connect the backup heater power supply

Installer reference guide
98
1 2 3
a
A
B
A
B
X1M
a Interconnection cable (=main power supply)
b Normal kWh rate power supply
c Preferential power supply contact
3 Fix the cables with cable ties to the cable tie mountings.
INFORMATION
In case of preferential kWh rate power supply, connect X11Y to X11YB. The necessity
of separate normal kWh rate power supply to indoor unit (b) X2M/5+6 depends on
the type of preferential kWh rate power supply.
Separate connection to the indoor unit is required:
▪
if preferential kWh rate power supply is interrupted when active, OR
▪
if no power consumption of the indoor unit is allowed at the preferential kWh
rate power supply when active.
Backup heater type
*6V
*9W
[9.3] Backup heater
1N~, 50 Hz,
230 V AC, 6.3 A
L N
6 5
b
a b c
5 6
1 2 3
X11YB X2M
X11YA
X11Y
X1A
Power supply
1N~ 230 V (6V)
3~ 230 V (6T1)
3N~ 400 V
S1S
9 10
c
9 10
X5M
Wires
2+GND
3+GND
4+GND
EPRA14~18DAV3+W1 + ETVZ16S18+23EA6V+9W
Daikin Altherma 3 H HT F
4P644739-1 – 2021.02