11
RAU-SVX01B-E4
General start-up
Start-up Preparation
Carry out all operations on check list
and that the unit is correctly installed
and ready to operate.
The installer must check all the
following points before calling in the
Trane Servicing Department to put the
equipment into service:
- Check position of unit.
- Check unit is level.
- Check type and position of rubber
pads.
- Check clearance required for
maintenance access (See
submittals).
- Check clearance around condenser
(See Submittals).
- Check Filter(s) dryer are present.
- Insure that thermostatic expansion
valve(s) are well positioned.
- Insure that air discharge sensors are
well positioned.
- Insure that the isolation resistance
of all power supply terminals to
ground complies with standards and
regulations in force.
- Check that unit voltage and
frequency supplied match rated
input voltage and frequency.
- Check that all electrical connections
are clean and sound.
- Check that main power supply
switch is sound.
- On start-up of each motor in the
system, check the direction of
rotation and operation of all the
components they drive.
- Check that there is sufficient
demand for cooling on the day of
start-up (around 50% of nominal
load).
Start-up
Follow the instructions below to
correctly start-up the unit.
Installation and chiller inspection:
- Ensure that all the operations
above (start-up preparation), are
followed.
Follow the instruction stuck inside
the electrical cabinet:
- Unscrew the screws securing the
isolators located under the rails
supporting the compressor.
- Put the plexiglass supplied by
Trane in front of the power
terminal.
- Ensure all refrigerant valves are in
service positions.
- Ensure that the unit is not
damaged.
- Check fixing of capillary tubes
(protection from vibration and
from wear) and ensure that they
are not damaged.
- Reset all manually set control
devices.
- Check refrigerating circuits
tightness.
Checking and setting:
Compressors:
- Check oil level at rest. The level
should reach at least halfway up
indicator located on housing. See
fig. 4 for correct level.
Figure 4 - Compressor oil level
- Check fixing of capillary tubes
(protection from vibration and
from wear) and insure that they
are not damaged.
- Reset all manually set control
devices.
- Check refrigerating circuits
tightness.
- Check oil acidity.
- Check electrical terminals
tightening of the motors and in the
control panel.
- Check the isolation of the motors
using a 500V DC megohmeter
which meets manufacturer’s
specifications (minimum value
2 meghoms).
- Check the direction of the rotation
using phasemeter.
Electrical power wiring:
- Check all the electrical terminals
tightening.
- Set-up compressors overload
relays.
- Set-up fan-motors overload relays.
Electrical control wiring:
- Check all the electrical terminals
tightening.
- Check all the pressostats.
- Check and set-up the SMM
module.
- Test and start-up without the
electrical power.
Condenser:
- Check setting of the safety
pressure valve.
- Check direction of the rotation of
fans.
- Check the isolation of the motors
using a 500V DC megohmeter
which meets manufacturer’s
specifications (minimum value
2 meghoms).
Max oil level
Min oil level
Summary of Contents for RAU-SVX01B-E4
Page 27: ...27 RAU SVX01B E4 Notes...
