Number Of Starts And Working Hours; Average Working Hours; Starts Per Day Optimum; Starts Per Day Worst - Emerson Liebert iCOM Training And Service Manual

iCOM
Controls Training and Service Manual
Fans/Heaters/Humidifier/Compressor 1 and 2 Settings

Number of Starts and Working hours

The number of starts and total operating hours of each device is counted and
recorded since the last maintenance reset. Total working hours can be read in the
standard working hour's window (customer window).

Average Working Hours

This value is calculated from the total run hours or each component and the
number of starts per component.

Starts per Day Optimum

The number of individual component starts that is considered good or optimum.
To be set by the Service Engineer if the next Maintenance Calculation program is
used.

Starts per Day Worst

The number of individual component starts that is considered as "hunting" (worst
case). To be set by the Service Engineer if the next Maintenance Calculation
program is used.
Number of Alarms
Counts the number of alarms occurring between service intervals per the
individual components.
Actual Bonus
Is calculated from the "number of starts" and "average working time". The result
can be positive (for a bonus) or negative (for a penalty). This value influences the
time remaining to the next maintenance interval.

Shared Parameters

If we have multiple units in the same room (zone) they will need to communicate
with each other to avoid opposite operational functions. This will prevent the
cooling and heating functions from operating at the same time on different units.
This condition called "fighting", often exists in the room due to imbalanced loads
and the crossing of airflow conditions. This is also considered when using the
Lead/Lag and Cascade functions.
When a system is setup the parameters are shared by all units. The unit selected
as the Lead Unit (#1 unit) is used to program the system. If program parameters
are not set in this unit they will be ignored. This is true for all of the active units in
the system. However, if a unit in the system is not active it will be ignored until it is
active and the parameters will be shared within 2 minutes of activation.
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