Technical data

Safety Precautions
All air conditioning systems described in this manual are connected to electrical mains power. The electrical power
terminations are exposed once the protective enclosure cover is removed.
• All necessary precautions must be taken for the
prevention of injury or death by electric shock.
• Electrical wiring must be installed only by qualified
personnel.
• The installation of all wiring must conform to IEE
Regulations and to relevant local electrical safety
regulations.
• Ensure correct earth grounding. Do not connect earth
wire to gas or water pipes, lighting rod or telephone
grounding. Incorrect earth grounding can result in
electric shock.
• Ensure an earth leakage circuit breaker is installed in
the incoming mains power supply.
• Ensure all power supply connections include a fused
isolator and/or mains circuit breakers, adjacent to the
equipment, for both outdoor and indoor units.
• Cable connections must be secured, to prevent any
tension being taken by the terminal screw connections.
• Do not install the units in an area where there may
be leakage of combustible gases. A concentration of
combustible gases around the units can result in the
outbreak of fire.
• Safety precautions must be observed with regard to
pressurised refrigerant systems. Operatives must wear
suitable protective clothing and eye protection.
• It is illegal to allow HCHF refrigerant to escape to
atmosphere. All refrigerant removed from equipment
must be correctly decanted into cylinders specifically
designated and labelled for this purpose.
• Ensure that the building structure is capable of
supporting the weight of the installed equipment,
and that vibration transmission through the structure
will not cause a disturbance.
• Where a large system is installed in a small room, it is
necessary to provide protection for the rare case of
refrigerant leakage into the confined space. This is in
order to comply with the concentration threshold as
defined by BS4434.
• Ensure condensate drainage is carried out correctly.
Ensure that odours, vapours or gases are prevented
from entering the termination of the drain outlet.
• Do not install the outdoor units where there is a
possibility of causing a noise disturbance to adjacent
buildings, in particular if equipment is expected to
operate at night time within a residential area.
• Outdoor units must be properly supported and secured
to allow for prevailing winds, and for the possibility
of other site personnel (e.g. window cleaners) standing
on the units. Warning signs should be fixed where
appropriate.
• The equipment is not suitable for installation in
environments where the atmosphere is contaminated,
e.g. chemical processes, engineering workshops, or
areas where there is a high level of electronic noise.
Outdoor units should not be installed in areas close
to the sea, as the salt laden air will cause damage to
the heat exchangers.
• IMPORTANT Do not run the unit until the required
amount of refrigerant is added to the system, and the
outdoor unit shut-off valves are in the open position.
When power is connected, the system will operate
immediately.
Warning
Caution
ELECTRICAL MAINS POWER
Indoor units - 220V / 1ph / 50HZ
Interconnecting cables
(including control cables) - 220V / 1ph / 50HZ
Outdoor units
FDC type CEN & HEN - 220V / 1ph / 50HZ
FDC type CES & HES - 380V / 3ph / 50HZ