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1. Table of Contents

IMPORTANT INFORMATION AND MAINTENANCE

WARNING: The fan coil unit is connect-

ed to the power supply network and the

hydraulic circuit. Any intervention by per-

sonnel not technically qualified can result

in injury to the operator and damage to the

unit and the surrounding environment.

WARNING: Do not allow the unit to be

used by children or incapacitated people

without suitable supervision. It is reminded

that the unit must not be used as a toy by

children.

ONLY PROVIDE A POWER SUPPLY OF 230V

~ 50HZ TO THE FAN COIL UNIT

Using other power supply ratings can cause

irreparable damage to the fan coil unit.

DO NOT USE THE FAN COIL UNIT

IMPROPERLY

Do not use the fan coil unit in animal hus-

bandry applications.

VENTILATING THE ROOM

Periodically air the room in which the fan

coil unit has been installed; this is par-

ticularly important if the room is occupied

by many people, or if gas appliances or

sources of odours are present.

CORRECTLY CONTROLLING THE TEMPERA-

TURE

The room temperature should be controlled

in order to provide maximum comfort to

the people in the room, especially if they

are elderly, children or ill, avoiding sudden

OPERATING LIMITS

Maximum water inlet temperature

Maximum operating pressure

Ambient temperature limits (Ta)

Ambient relative humidity limits (RH)

Power supply

Water temperature

In order to avoid air stratification and therefore

achieve better mixing it is advised not supply

the fan coil unit with water hotter than 65°C.

The use of very hot water could cause

Minimum average water temperature

If the fan coil unit operates continuously in

cooling mode in a room with high relative

humidity, condensate might form on the air

discharge and unit casing. This condensate

might be deposited on the floor and on any

objects underneath. To prevent the formation

of condensation on the exterior of the unit

MINIMUM AVERAGE WATER TEMPERATURE [°C]

Ambient wet bulb temperature

PACKAGING

The fan coil units are shipped in standard packaging which consists of expanded polystyrene foam and cardboard.

USE

Refer to the control panel manual for operating use and installation.

changes in temperature between the out-

side and inside above 7 °C in summer.

A too low temperature will lead to

increased electrical consumption in the

summer.

CORRECTLY ADJUSTING THE AIR JET

The air coming out of the fan coil unit must

not strike people directly; in fact, even if at

a temperature that is higher than the room

temperature, it could cause a cold sensa-

tion and resulting discomfort.

DURING OPERATION

Always leave the filter in the fan coil unit

during operation otherwise dust in the air

will dirty the surfaces of the coil.

WHAT IS NORMAL

During cooling, water vapour may be pre-

sent in the air discharge.

During heating it might be possible to

hear a slight hiss around the fan coil unit.

Sometimes the fan coil unit might give off

unpleasant smells due to the accumula-

tion of substances from the air of the room

(especially if the room is not ventilated

regularly. Clean the filter more often).

During operation, there could be noises

and creaks inside the unit, due to the ther-

mal expansion of the various components

(plastic and metallic), but this does not

indicate a malfunction and does not cause

damage to the unit unless the maximum

input water temperature is exceeded.

DUALJET

creaking due to the thermal expansion of the

different components (plastics and metals).

This does not cause damage to the unit if

the maximum operating temperature is not

while the fan is operating, the average water

temperature should not drop below the

operating limits shown in the table below,

determined by the room ambient conditions.

These limits refer to unit operation with fan at

minimum speed.

In the case of prolonged periods with the fan

MAINTENANCE

DO NOT USE TOO HOT WATER

Use a soft cloth or sponge with water at

a maximum of 40 °C to clean the fan coil

unit. Do not use chemical products or sol-

vents on any parts of the fan coil unit. Do

not splash water on interior or exterior

surfaces of the fan coil unit (it could cause

short circuits).

PERIODIC FILTER CLEANING

Frequent filter cleaning ensures a better

operating efficiency.

Check if the filter is very dirty: in this case

increase the cleaning frequency.

Clean frequently by removing the accumu-

lated dust with a vacuum cleaner.

When the filter is clean refit it to the fan

coil unit reversing the removal procedure.

SPECIAL CLEANING

The possibility of removing the fan coil unit

inspection panels (carried out only by per-

sonnel suitably qualified) allows detailed

cleaning of the internal parts, particularly

for installations with high occupancy or

requiring elevated hygiene standards.

80°C

8 bar

0°C < Ta < 40°C

RH < 85%

230V ( ±10% ) ~ 50Hz

exceeded.

switched off and cold water passing through

the coil the formation of condensate on

the unit casing is possible. In this case the

installation of the 3 way valve accessory is

recommended.

Ambient dry bulb temperature

IDJULJ 1207 - 6339500_00