Daikin RHBH16CB [42/104] Installation

Daikin RHBH16CB [42/104] Installation
7 Installation
Installer reference guide
42
RRLQ011~016CA + RHBH/X11+16CB
ROTEX HPSU low temperature Bi‑bloc
4P384980-1C – 2017.04
Routing Possible cables (depending on unit type and installed options)
c
High voltage control signal
Heat pump convector (option)
Room thermostat (option)
3-way valve
Shut-off valve (field supply)
Domestic hot water pump (field supply)
Alarm output
Changeover to external heat source control
Space heat/cool operation control
4 Fix the cable with cable ties to the cable tie mountings to
ensure strain relief and to make sure that it does NOT come in
contact with the piping and sharp edges.
CAUTION
Do NOT push or place redundant cable length in the unit.
7.9.9 To connect the main power supply
1 Connect the main power supply.
In case of normal kWh rate power supply
X1M
1 2 3
1 2 3
X2M
X5M
X6YB
X6YA
X6Y
X1A X19A
30 31
a
Legend: see illustration below.
In case of preferential kWh rate power supply
Connect X6Y to X6YB.
X1M
1 2 3
1 2
L N
L N 3
X2M
X5M
X6YB
X6YA
X6Y
X1A X19A
S1S
30 31
3 4
abc
a Interconnection cable (=main power supply)
b Normal kWh rate power supply
c Preferential power supply contact
2 Fix the cable with cable ties to the cable tie mountings.
INFORMATION
In case of preferential kWh rate power supply, connect
X6Y to X6YB. The necessity of separate normal kWh rate
power supply to indoor unit (b) X2M30/31 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.
INFORMATION
The preferential kWh rate power supply contact is
connected to the same terminals (X5M/3+4) as the safety
thermostat. It is only possible for the system to have
EITHER preferential kWh rate power supply OR a safety
thermostat.
7.9.10 To connect the backup heater power
supply
CAUTION
If the indoor unit has a tank with a built‑in electrical booster
heater, use a dedicated power circuit for the backup heater
and booster heater. NEVER use a power circuit shared by
another appliance. This power circuit MUST be protected
with the required safety devices according to the applicable
legislation.
CAUTION
To guarantee the unit is completely earthed, always
connect the backup heater power supply and the earth
cable.
The backup heater capacity can vary, depending on the indoor unit
model. 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)
*3V 3kW 1~230V 13A
*9W 3kW 1~230V 13A
6kW 1~230V 26A
(a)(b)
6kW 3~230V 15A
6kW 3N~400V 8.6A
9kW 3N~400V 13A
(a) 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.).

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