R90 - 160N / R90 - 160I / R90 - 160NE / R90 - 160IE
http://www.ingersollrandproducts.com
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9.0 OPERATING INSTRUCTIONS
9.1.11 ENERGY STATUS MESSAGES
The Energy Status display can be selected by pressing the
ENERGY STATUS button. The following items and their
present values will be displayed on the right side of the
screen by pressing the up and down arrows.
AVERAGE PACKAGE kW HOURS -
This displays the
average package kW per hour for the time period that
was started by selecting the reset averaging setpoint. This
value includes the blower power usage.
AVERAGE % CAPACITY -
Displays the compressor’s
average percent capacity for the time period that was
started by selecting the reset averaging setpoint. The
value is determined by taking the average package kW
per hour, removing the blower power usage and then
dividing that number by the motor kW per hour for that
size of compressor at 100% capacity.
AVERAGE CAPACITY -
Displays the compressor’s average
capacity in cfm or m3 for the time period that was started
by selecting the reset averaging setpoint.
ENERGY COST -
Displays the energy cost of the
compressor for the time period that was started by
selecting the reset averaging setpoint. This is calculated
by multiplying the kW hours of the motor and the blower
by the energy rate.
ENERGY SAVINGS -
Displays the energy savings of the
compressor for the time period that was started by
selecting the reset averaging setpoint as compared to
a conventional compressor. This value is determined by
calculating how much a conventional compressor motor
would cost to operate at the same average capacity
and then subtracting the motor energy cost of the VSD
compressor from it. It is assumed that the blower cost is
the same in both packages.
LIFETIME ENERGY SAVINGS -
Displays the lifetime
energy savings of the compressor at the existing energy
rate and at the average percent capacity as compared to a
conventional compressor.
