To Fill The Domestic Hot Water Tank; To Insulate The Water Piping; Electrical Installation; About Electrical Compliance - Daikin ETBH16DF6V Installation Manual

Glycol setting
NOTICE
If glycol is present in the system, setting [E-0D] must be
set to 1. If the glycol setting is NOT set correctly, the liquid
inside the piping can freeze.
Freeze protection by freeze protection valves
About freeze protection valves
When no glycol is added to the water, you can use freeze protection
valves to drain the water from the system before it can freeze.
▪ Install freeze protection valves (field supply) at all lowest points of
the field piping.
▪ Normally closed valves (located indoors near the piping entry/exit
points) can prevent that all water from indoor piping is drained
when the freeze protection valves open.
NOTICE
When freeze protection valves are installed, set the
minimum cooling setpoint (default=7°C) at least 2°C higher
than the maximum opening temperature of the freeze
protection valve. If lower, freeze protection valves can
open during cooling operation.
For more information, see the installer reference guide.
4.2.4

To fill the domestic hot water tank

See the installation manual of the domestic hot water tank.
4.2.5

To insulate the water piping

The piping in the complete water circuit MUST be insulated to
prevent condensation during cooling operation and reduction of the
heating and cooling capacity.
Outdoor water piping insulation
See the installation manual of the outdoor unit, or the installer
reference guide.
5

Electrical installation

DANGER: RISK OF ELECTROCUTION
WARNING
ALWAYS use multicore cable for power supply cables.
INFORMATION
When installing field supply or option cables, foresee
sufficient cable length. This will make it possible to open
the switch box and gain access to other components
during service.
CAUTION
Do NOT push or place redundant cable length in the unit.
NOTICE
The distance between the high voltage and low voltage
cables should be at least 50 mm.
5.1

About electrical compliance

Only for the backup heater of the indoor unit
See "5.3.2 To connect the backup heater power
ETBH/X16DF6V+9W
Daikin Altherma 3 H HT W
4P586453-1C – 2020.10
5.2
Tightening torques
Indoor unit:
M4 (X1M, X2M, X5M)
M4 (earth)
5.3
Power supply (main)
Power supply (backup
heater)
Shut-off valve
Electricity meters
Domestic hot water
pump
Alarm output
Space cooling/heating
operation control
Changeover to
external heat source
control
Power consumption
digital inputs
Safety thermostat
Room thermostat
(wired or wireless)
supply" [ 4 12].
5 Electrical installation
Guidelines when connecting the
electrical wiring
Item Tightening torque (N•m)

Connections to the indoor unit

Item Description
See "5.3.1 To connect the main power
supply" [ 4 11].
See "5.3.2 To connect the backup heater
supply" [ 4 12].
power
See "5.3.3 To connect the shut-off
valve" [ 4 13].
See "5.3.4 To connect the electricity
meters" [ 4 14].
See "5.3.5 To connect the domestic hot
water pump" [ 4 14].
See "5.3.6 To connect the alarm
output" [ 4 14].
See "5.3.7 To connect the space cooling/
heating ON/OFF
See "5.3.8 To connect the changeover to
source" [ 4 15].
external heat
See "5.3.9 To connect the power
consumption digital
See "5.3.10 To connect the safety
thermostat (normally closed
contact)" [ 4 16].
See:
▪ Installation manual of the wireless
room thermostat
▪ Installation manual of the wired
room thermostat
analogue) + multi-zoning base
unit
▪ Connection of the wired room
thermostat (digital or analogue)
to the multi-zoning base unit
▪ Connection of the multi-zoning
base unit to the indoor unit
▪ For cooling/heating
you also need option EKRELAY1
▪ Addendum
equipment
Wires: 0.75 mm²
Maximum running current: 100 mA
For the main zone:
▪ [2.9] Control
▪ [2.A] Thermostat type
For the additional zone:
▪ [3.A] Thermostat type
▪ [3.9] (read-only) Control
1.2~1.5
output" [ 4 15].
inputs" [ 4 16].
(digital or
operation,
book for optional
Installation manual
9