General Start-up
CG-SVX06D-E4
42
Electrical power wiring:
• Check all the electrical terminals
are tight
• Set-up compressors overload
relays
• Set-up fan-motors overload relays
Electrical control wiring:
• Check all the electrical terminals
are tight
• Check all the pressostats
• Check and set-up the TRACER
CH530 control module
• Test and start-up without the
electrical power
Condenser:
• Check setting of the safety
pressure valve
• Check the insulation of the motors
using a 500V DC megohmeter
which meets manufacturer's
specifications (minimum value 2
megohms)
Operating parameters statement
• Switch on main power supply
switch
• Start the water pump(s) and check
there is no cavitation
• Start-up the unit following
procedure described in the
CGWN-CCUN User Manual. The
unit and the chilled water pumps
contactor must be connected
together.
After unit start up, leave in operation
for at least 15 minutes, to ensure
pressures are stabilized. Then check:
• voltage
• compressors currents
• leaving and return chilled water
temperature
• suction temperature and pressure
• ambient air temperature
• blowing air temperature
• discharge pressure and
temperature
• liquid refrigerant temperature and
pressure
Figure 29 - Compressor oil level at oil equalization line
1. Max. oil level
2. Min. oil level
1
2
1
2
