SystemAir SYSCOIL MINI 21, Инструкция по установке, эксплуатации и обслуживанию

Страница: 7 / 12

INSTALLATION, OPERATION
AND MAINTENANCE MANUAL
Vers. 2012-0
low profi le
centrifugal fan coil unit
7
3 cm/m
WATER CONNECTIONS ELECTRICAL CONNECTIONS
CONNECTIONS TO THE TERMINAL BLOCKS
CONNECTION TO THE WATER MAINS
CAUTION! Always use a wrench and nose key for connection of the coil
to the pipes (Pic. 12). If the solenoid valve is installed, suitably insulate the
valve body with insulating material (Pic. 13).
Connect the water inlet and outlet pipes, observing the indications given on the
side of the appliance. Correctly insulate the water supply pipes to prevent drip-
ping during the cooling mode of operation. An shutoff valve should be inserted
on the water supply pipe and balancing valve on the outlet pipe. The valve body
and balancing valve should also be properly insulated to prevent dripping. It is
the installer’s responsibility to insulate properly and the manufacturer cannot be
held liable for any insulation work.
NOTE: it is always advisable to install the solenoid valve. In the heating
mode of operation the solenoid valve reduces consumption because upon
reaching the set temperature the circulation of water is stopped to avoid
wasting energy (the fan coil would otherwise continue to heat like a radia-
tor, even with the motor at a standstill). In the cooling mode of operation
the solenoid valve stops the circulation of water when the set temperature
is reached, this stopiing the internal exchanger
from continuing to condense water with possible undersirable dripping
into the fl oor. It also reduces chiller operation with consequent energy
saving.
RECOMMENDATIONS!
Before carrying out electrical connections, ensure that the electricity supply to
the supply line has been cut off, checking that the on-off switch is in the OFF
position. Only qualifi ed electricians should carry out the electrical connections.
Check that the mains supply is single-phase 230 Vac/1/50 Hz (± 10%).
Operating the appliance with voltages outside the above limits could cause mal-
function and renders the warranty null and void.
The fan coil power supply line should be fi tted with at least a switch isolator in
conformity with European standard EN60947-3. Make sure that the electrical
system is suitable for providing not only the working current required by the
appliance, but also the necessary current for powering household and other
electrical appliances already in use.
Any electrical and mechanical alterations or tampering render the warranty null
and void. The motor and accessories power cables in channels or ducts should
remain inside the same until they are inside the appliances.
The cables should be suffi ciently long so that they are not permanently taut or
create throttling or pressure on metal parts (see Pic. 15). The power cables
should be suffi ciently long so that in the event of accidental tugging the active
wires are subjected to stress before the earth wire. Connect the earth wire to the
relative terminal marked with the symbol .
Check the earth connection. Comply with the safety regulations in force in the
country of installation.
WITHOUT CONTROL PANEL
The electrical connections should be made to the terminal block on the side of
the appliance (Pic. 16).
Each terminal is identifi ed by the label to be found on the terminal block.
WITH CONTROL PANEL
The electrical connections should be made directly to the control panel, as shown
by the relative wiring diagram. If the control panel has an electronic temperature
sensor (NTC) this sensor will be powered by mains voltage (230Vac/1/50 Hz)
and is therefore provided with double insulation.
CAUTION: FAILURE TO COMPLY WITH THE INDICATED CONNECTIONS
MAY CAUSE MOTOR BURNOUT!
CONDENSATE WATER DRAINAGE
The condensate drain pipe should slope downwards by at least 3 cm/m and
should not have ascending or throttled section in order to ensure a regular fl ow
of water. It is advisable for a trap to be fi tted. The condensate drain pipe should
be connected to a rainwater drainage system. Do not use sewage system to
avoid possible odours in the event of evaporation of the water in the trap. Upon
completion of work, check that the condensate fl ows out properly by pouring
water into the tray (see Pic. 14). The condensate water drainage system should
be fabricated
in a workmanlike manner and should be periodically checked. The manufacturer
cannot be held liable for any damage caused by dripping in the absence of a
solenoid valve or of periodic maintenance of the drainage system.
Pic. 15
Pic. 14
Pic. 12 Pic. 13
Pic. 16
Max (III) Med (II) Min (I) Common (Com)
230 Vac - 50 Hz
M Fan motor
T1
Autotransformer
(not installed in all models)
XA1 Fan motor terminal board
XA1