Preparing Water Piping; Preparing Electrical Wiring; About Preparing The Electrical Wiring - Daikin FWE03D Manuel D'installation

4 Preparation
Vertical installation
Vertical filter maintenance space should be considered as indicated.
≥10
CAUTION
Do not use suspension bolts in case of vertical installation.
Vertical installation must be performed with the vertical
installation kit (ESFH01DS).
4.3

Preparing water piping

The unit is equipped with a water inlet and water outlet for
connection to the water circuit. The water circuit must be provided by
an installer and must comply with the applicable legislation.
NOTICE
The unit is only to be used in a closed water system.
Application in an open water circuit can lead to excessive
corrosion of the water piping.
Before performing the water piping work, check the following points:
▪ The maximum water pressure is 1 MPa.
▪ The minimum water temperature is 5°C.
▪ The maximum water temperature is 90°C.
▪ Be sure to install components in the field piping that can withstand
the water pressure and temperature.
▪ Provide adequate safeguards in the water circuit to ensure that
the water pressure will never exceed the maximum allowable
working pressure.
▪ Provide a proper drain for the pressure relief valve (if installed) to
avoid any water from coming into contact with electrical parts.
▪ Provide shut-off valves at the unit so that normal servicing can be
accomplished without draining the system.
Installation manual
6
▪ Provide drain taps at all low points of the system to permit
complete draining of the circuit during maintenance or service to
the unit.
▪ Provide air purge valves at all high points of the system. The
valves shall be located at points which are easily accessible for
servicing.
4.4

Preparing electrical wiring

4.4.1

About preparing the electrical wiring

WARNING
▪ ONLY use copper wires.
▪ Make sure the field wiring complies with the applicable
legislation.
▪ All field wiring MUST be performed in accordance with
the wiring diagram supplied with the product.
▪ NEVER squeeze bundled cables and make sure they
do NOT come in contact with the piping and sharp
edges. Make sure no external pressure is applied to the
terminal connections.
≥150
▪ Make sure to install earth wiring. Do NOT earth the unit
to a utility pipe, surge absorber, or telephone earth.
Incomplete earth may cause electrical shock.
▪ Make sure to use a dedicated power circuit. NEVER
use a power supply shared by another appliance.
▪ Make sure to install the required fuses or circuit
breakers.
▪ Make sure to install an earth leakage protector. Failure
to do so may cause electric shock or fire.
▪ When installing the earth leakage protector, make sure
it is compatible with the inverter (resistant to high
frequency electric noise) to avoid unnecessary opening
of the earth leakage protector.
NOTICE
The equipment described in this manual may cause
electronic noise generated from radio-frequency energy.
The equipment complies to specifications that are
designed to provide reasonable protection against such
interference. However, there is no guarantee that
interference will not occur in a particular installation.
It is therefore recommended to install the equipment and
electric wires keeping proper distances away from stereo
equipment, personal computers, etc.
WARNING
All field wiring and components MUST be installed by a
licensed electrician and MUST comply with the applicable
legislation.
DANGER: RISK OF ELECTROCUTION
WARNING
A main switch or other means for disconnection, having a
contact separation in all poles, MUST be incorporated in
the fixed wiring in accordance with the applicable
legislation.
FWE03~11D
Fan coil units
3P443944-5E – 2019.09