Suggested Electric Connection; Operation; First Check - Carrier 30AJ Manual De Instalación, Operación Y Mantenimiento

6.5 - SUGGESTED ELECTRIC CONNECTION

Transformer
Select freezing
temperature
Open: 2°C
Closed: -7°C
Turn on/turn off
remote
Open: Turn off
Closed: Turn on
Control select
Open: Local
Closed: Remote
Sensor temperature
water return
Sensor temperature
water exit

7. OPERATION

7.1 - FIRST CHECK

Before starting-up the unit, check the prior conditions and
the following items:
a) Check the installation and operation of all the auxiliary
equipments, such as condensers and evaporators.
b) See if all the electrical connections are set.
c) Check if there is no refrigerant or water leaks.
d) Check if the power supply is proper for the electrical
characteristics of the unit (U= 10% nominal value).
68
CONTROL UNIT
UC4230
Compressor
contact
Valve solenoid
Pressure
switch
high low
On
Compressor
Anti recycle
Freezing
Pressure
switch
e) Be sure the compressor can freely move in all directions
on the buffers (loosen the fastening screws of the
compressors).
f) Check if the direction of the fans is correct.
g) Check if the operating direction of the compressor is
correct.
Button on
Button off
Habilitation
CONTROL FRONT