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5. Operation (cont.)
5.2. Start-up
IMPORTANT
The units have crankcase resistors in the compressors.
The resistors are connected depending on the outside
temperature. If the outside temperature is below 16°C,
leave the units energized for 24 hours before turning
them on.
IMPORTANT
• Chiller start-up should be supervised by a qualifi ed
engineer.
• Starting and operating tests must be performed by
applying heat and circulating water at the evaporator.
• All set-point adjustments and other existing setting
parameters in control and DIP should be performed
before starting the unit.
5.2.1 Control Handling (thermostat)
AJUSTAR
CANCELAR
VERIFICAR
SELECIONAR
ALARME
34
LED
Operation
On/Off
Button
MODO
ALTERAR
CONFIRMAR
VENTILADOR
Before starting the unit, check the above conditions and the
following items:
a)
Check the chilled water circulating pumps the air terminal
units (Fan Coil) and all other equipment connected to
the evaporator.
b)
Check that everything is in accordance with the wiring
diagrams provided with the unit.
c)
Make sure all electrical connections are tightened with
the proper torque.
d)
Make sure that the power supply is compatible with the
electrical characteristics of the unit.
e)
Make sure that there are no refrigerant leaks.
f)
Ensure that all service valves are in the correct operating
position, that is, open.
g)
Make sure that the manufacturer's instructions are all
understood.
12VDC ± 10%, power consumption
Power input:
is
Communication
RS-485 COM standard, 120 m
mode:
maximum recommended distance.
LCD Display:
4 lines of 22 letters each.
A beep when turning on;
A beep when you press each button;
Sound signal (beep):
three consecutive beeps when the
alarm sets off .
10-second lighting by pressing the
Backlight:
buttons or system errors.
LED:
Lit when the system is operating.
below
1.5 W.
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