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Unit installation (see
"12 Unit
CAUTION
Appliance NOT accessible to the general public, install it in
a secured area, protected from easy access.
This unit, both indoor and outdoor, is suitable for
installation
in
a
commercial
environment.
CAUTION
Do NOT remove the (milky white) tape from the exterior of
the indoor unit. Removing the tape may cause an electric
shock or a fire.
Refrigerant piping installation (see
installation" [ 4 16])
CAUTION
Piping MUST be installed according to instructions given in
installation" [ 4 16]. Only mechanical joints (e.g.
"13 Piping
braze+flare connections) that are compliant with the latest
version of ISO14903 can be used.
Electrical installation (see
"14 Electrical
WARNING
ALWAYS use multicore cable for power supply cables.
WARNING
▪ All wiring MUST be performed by an authorised
electrician and MUST comply with the applicable
national wiring regulation.
▪ Make electrical connections to the fixed wiring.
▪ All components procured on-site and all electrical
construction
MUST
legislation.
For the user
3
User safety instructions
Always observe the following safety instructions and regulations.
3.1
General
WARNING
If you are NOT sure how to operate the
unit, contact your installer.
WARNING
This appliance can be used by children
aged from 8 years and above and
persons with reduced physical, sensory
FXHQ-A
VRV system air conditioner
3P668115-3E – 2022.11
installation" [ 4 12])
and
light
industrial
"13 Piping
installation" [ 4 18])
comply
with
the
applicable
3 User safety instructions
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 shock.
▪ 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
connections from a star system. They can cause
overheating, electrical shock 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
Prevent hazards due to inadvertent resetting of the thermal
cut-out: power to this appliance MUST NOT be supplied
through an external switching device, such as a timer, or
connected to a circuit that is regularly turned ON and OFF
by the utility.
or mental capabilities or lack of
experience and knowledge if they have
been given supervision or instruction
concerning use of the appliance in a
safe way and understand the hazards
involved.
Children SHALL NOT play with the
appliance.
Cleaning and user maintenance
SHALL NOT be made by children
without supervision.
Installation and operation manual
5
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