18 IOMM Starter
Startup
General
The startup of McQuay centrifugal chillers, including the starters, is performed by McQuay
authorized and trained technicians. They review the starter connections, phase sequence, and
settings prior to starting the chiller.
Setting a freestanding starter and power and control wiring from it to the chiller is the
responsibility of the owner/contractor. See the installation and power and control wiring
sections of this manual before commencing installation.
In the rare instances where a starter is being replaced after the chiller has been in service,
McQuay service is not automatically involved but can be contracted to supervise the starter
installation.
For general information, brief startup instructions are included on the following pages.
Low Voltage Solid State (LVSS)
LED Display
• Located on the starter control board
• View parameters, messages and faults.
• Shows software revision on power up.
Programming
• Press PARAM to enter the menu and
then UP or DOWN to reach the desired
parameter.
• Press ENTER to show the present value
of the parameter.
• Press UP or DOWN to change the
parameter value.
• Press ENTER to store the new value or PARAM to abandon the change.
Quick Meters
• Press DOWN to display the motor thermal overload content.
• Press UP to display the incoming line phase order.
• Press ENTER to display the status meter.
Fault Log·
• Select P32 and press ENTER. The most recent fault will be displayed as “xFyy”
where x will be 1 to indicate the most recent fault is being displayed and yy is the
fault code.
• Press DOWN to view older faults. Up to 9 faults may be stored in the log.
Resetting a Fault·
• Press RESET to reset from a fault.Resetting Parameters·
• Press and hold PARAM and ENTER on power up to reset parameters to default
values.
To Next Page
Loading...
Need help?
General
