Operation
CG-SVX06D-E4
54
Control and unit operation
The control is through the
TRACER CH530 control module.
• Check the chilled water pump(s)
operate(s)
• Start up the unit following
procedure described in the
CGWN-CCUN User Manual. The
unit will operate correctly when
there is sufficient water flow. The
compressors will start up if the
evaporator water leaving
temperature is above the control
module setpoint.
Weekly start up
• Check the chilled water pump(s)
operates
• Start up the unit following
procedure described in the User
Guide.
Weekend shutdown
• If the unit needs to be shut down
for a short period of time, stop the
unit following procedure
described in the CGWN-CCUN
User Manual (See "Clock" menu)
• If the unit is shut down for a
longer period, see under
"Seasonal shutdown", below.
• Ensure that all safety precautions
are taken to prevent frost
damages during negative ambient
temperature.
• Do not put the general disconnect
switches to off, except if the unit
is drained.
Trane does not recommend draining
the unit, due to the fact that it
increases tube corrosion.
Seasonal shutdown
• Check water flows and interlocks.
• Check glycol concentration in the
chilled water circuit if glycol
presence is required
• Carry out leak test.
• Carry out oil analysis
• Record operating pressures,
temperatures, amperages and
voltage.
• Check operation of
machines/compare conditions of
operation against original
commissioning data.
• Stop the unit following procedure
described in the CGWN-CCUN
User Manual.
• Ensure that all safety precautions
are taken to prevent frost
damages during negative ambient
temperature.
• Fill out the visit log sheet and
review with the operator
• Do not put the general disconnect
switch to off, except if the unit is
drained.
Trane does not recommend draining
the unit, due to the fact that it
increases tube corrosion.
