Troubleshooting guide

· Capacity Decrease At Start – At compressor startup,

the capacity motor is held at minimum position for

this time period. After the timer expires, the slide is

free to move in accordance to the system demands.

· Compressor Starter Auxiliary Contact Bypass – This

timer is used to bypass the motor amperage input at

start. After the timer times out, the program deter-

mines if the motor starter has pulled in by testing the

amperage channel. If the program determines that

the starter did not “pull in”, then the compressor will

fail on “Motor Starter Fail” message.

· Volume Slide Adjustment Timer – This timer de-

termines the intervals the volume slide is adjusted.

If the volume slide is between 2½% & 7% away

from the desired volume ratio, the motor is pulsed

once toward the desired volume. If the volume

slide is more than 7% away from the desired value,

the volume slide motor is continuously energized

until the valve is within 2½% of the desired value.

If the actual position is within 2½% of the desired

value, no adjustment will be made.

Compressor Timer Setpoints

To change a timer setting,

you must “Logon to Edit”

first. Push the “Set”

button then push on the

timer setpoint value you

wish to change. After the

setpoint is changed, press

the “Refresh” button.

This will refresh the

“Current” window, which

shows the elapsed time of

the timers.