Daikin ALTHERMA, Installer'S Reference Manual

Page: 102 / 280

9 | Electrical installation
Installer reference guide
102
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
4P620241-1 – 2020.06
To connect the backup heater kit
The installation of the external backup heater kit is described in the installation
manual of the kit. However, certain parts of it are superseded by the information
described here. It concerns the following:
▪ To connect the backup heater kit power supply
▪ To connect the backup heater kit to the outdoor unit
Wires: See installation manual of the backup heater kit
[9.3] Backup heater
To connect the backup heater kit power supply
CAUTION
To guarantee the unit is completely earthed, always connect the backup heater
power supply and the earth cable.
WARNING
The backup heater MUST have a dedicated power supply and MUST be protected by
the safety devices required by the applicable legislation.
Depending on the configuration (wiring on X14M, and settings in [9.3] Backup
heater
), the backup heater capacity can vary. Make sure that the power supply is
in accordance with the backup heater capacity, as listed in the table below.
Backup heater
type
Backup
heater
capacity
Power supply Maximum
running current
Z
max
(Ω)
*6W 3 kW 1N~ 230 V 13 A —
6 kW 1N~ 230 V 26 A
(a)(b)
—
6 kW 3N~ 400 V 8.6 A —
9 kW 3N~ 400 V 13 A —
(a)
This equipment complies with EN/IEC 61000‑3‑11 (European/International Technical
Standard setting the limits for voltage changes, voltage fluctuations and flicker in public
low-voltage supply systems for equipment with rated current ≤75 A) provided that the
system impedance Z
sys
is less than or equal to Z
max
at the interface point between the user's
supply and the public system. It is the responsibility of the installer or user of the
equipment to ensure, by consultation with the distribution network operator if necessary,
that the equipment is connected only to a supply with a system impedance Z
sys
less than or
equal to Z
max
.
(b)
Electrical equipment complying with EN/IEC 61000-3-12 (European/International Technical
Standard setting the limits for harmonic currents produced by equipment connected to
public low-voltage systems with input current >16 A and ≤75 A per phase).
1 Connect the backup heater power supply. A 4‑pole fuse is used for F1B.
2 If required, modify the connection on terminal X14M.