Daikin CVXM20B2V1B Installation Manual page 3

INFORMATION
▪ Units CVXM-B, FVXM-B contains refrigerant leakage
sensor, special requirement for unit with refrigerant
leakage sensor applies.
▪ Unit FVXTM-B is WITHOUT the refrigerant leakage
sensor, use graph for minimum floor area in the
General safety precautions.
installation" [ 4 4])
Unit installation (see "5 Unit
WARNING
Installation shall be done by an installer, the choice of
materials and installation shall comply with the applicable
legislation. In Europe, EN378 is the applicable standard.
WARNING
The appliance shall be stored as follows:
▪ in such a way as to prevent mechanical damage.
▪ in a well-ventilated room without continuously operating
ignition sources (example: open flames, an operating
gas appliance or an operating electric heater).
▪ For CVXM, FVXM in a room with dimensions as
specified in "To
area" [ 4 5].
▪ For FVXTM-B in a room with dimensions as specified in
"To determine the minimum floor area" in General
safety precaution.
WARNING
If appliances contain R32 refrigerant, then the floor area of
the room in which the appliances are installed, operated
and stored must be larger than the minimum floor area A
(m²), for units CVXM, FVXM refer to the
area" [ 4 5], for FVXTM-B refer to General
minimum floor
safety precautions.
CAUTION
For walls containing a metal frame or a metal board, use a
wall embedded pipe and wall cover in the feed-through
hole to prevent possible heat, electrical shock, or fire.
WARNING
Keep any required
obstructions.
Piping installation (see "6 Piping
WARNING
▪ Take precautions to avoid excessive vibration or
pulsation to refrigeration piping.
▪ Protect the protection devices, piping and fittings as
much as possible against adverse environmental
effects.
▪ Provide space for expansion and contraction of long
runs of piping.
▪ Design and install piping in refrigerating systems such
as to minimise the likelihood of hydraulic shock
damaging the system.
▪ Mount the indoor equipment and pipes securely and
protect them to avoid accidental rupture of equipment
or pipes in case of events such as moving furniture or
reconstruction activities.
CVXM-B, FVXM-B, FVXTM-B
Split system air conditioners
3P769578-3F – 2024.09
determine the minimum floor
"To determine the
ventilation openings clear
installation" [ 4 10])
2 Specific installer safety instructions
CAUTION
Piping and joints of a split system shall be made with
permanent joints when inside an occupied space except
joints directly connecting the piping to the indoor units.
DANGER: RISK OF BURNING/SCALDING
CAUTION
▪ Incomplete flaring may cause refrigerant gas leakage.
▪ Do NOT re-use flares. Use new flares to prevent
refrigerant gas leakage.
▪ Use flare nuts that are included with the unit. Using
different flare nuts may cause refrigerant gas leakage.
Electrical installation (see
DANGER: RISK OF ELECTROCUTION
WARNING
ALWAYS use multicore cable for power supply cables.
WARNING
▪ All wiring MUST be performed by an authorised
electrician and MUST comply with the national wiring
regulation.
▪ Make electrical connections to the fixed wiring.
▪ All components procured on-site and all electrical
construction
legislation.
WARNING
▪ If the power supply has a missing or wrong N-phase,
equipment might break down.
▪ Establish proper earthing. Do NOT earth the unit to a
utility pipe, surge absorber, or telephone earth.
Incomplete earthing may cause electrical shocks.
▪ Install the required fuses or circuit breakers.
▪ Secure the electrical wiring with cable ties so that the
cables do NOT come in contact with sharp edges or
piping, particularly on the high-pressure side.
▪ Do NOT use taped wires, extension cords, or
of
connections from a star system. They can cause
overheating, electrical shocks or fire.
▪ Do NOT install a phase advancing capacitor, because
this unit is equipped with an inverter. A phase
advancing capacitor will reduce performance and may
cause accidents.
WARNING
Use an all-pole disconnection type breaker with at least
3 mm between the contact point gaps that provides full
disconnection under overvoltage category III.
WARNING
If the supply cord is damaged, it MUST be replaced by the
manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
WARNING
Do NOT connect the power supply to the indoor unit. This
could result in electrical shock or fire.
installation" [ 4 11])
"7 Electrical
MUST comply with the applicable
Installation manual
3