QUANTUM™ HD COMPRESSOR CONTROL PANEL
OPERATION
090.040-O (MAR 12)
Page 65
[Refrigerant]
• R11 • R218 • R507
• R113 • R22 • R508
• R114 • R23 • R508b
• R1150 • R290 • R600
• R12 • R401a • R600a
• R1270 • R402a • R717
• R13 • R404a • R718
• R134a • R410a • R728
• R13b1 • R50 • R729
• R14 • R500 • R744
• R14b2 • R502 • R771
• R170 • R503 • User Defi ned
[Filter Differential Check] (Comparison)
• Disabled
• Filter-Oil
• Discharge-Oil
• Discharge-Filter
[K Factor] -Used in the calculation of the VI
(Slide Stop) position, and is based on the Re-
frigerant Type. Example: Refrigerant R717 sets a
K Factor of 1.30. This value can vary slightly de-
pending upon operating conditions, such as the
Suction and Discharge pressures.
[Separator Velocity] - This is a calculated value
that represents the percentage of the designed
capacity of the separator. Do not change this
value without consulting Frick. This value is
used in a calculation to prevent the Slide Valve
from loading, to prevent oil carrry-over out of
the separator and into the system due to a high
velocity (fl ow) of the refrigerant gas through the
separator. If this value is 0 (zero), it has not been
properly confi gured.
[Compressor Ratio] - This value represents the
Compressor Ratio of the compressor. Do not
change this value without consulting Frick. This
value is used in a calculation to prevent the Slide
Valve from loading, to prevent oil carrry-over
out of the separator and into the system due to a
high velocity (fl ow) of the refrigerant gas through
the separator. If this value is 4.0, it has not been
properly confi gured.
[Reset Run Hours] - Selecting this button will
allow the Run Hours to be set to any value. This
is best used for maintenance purposes.
[PAC Chiller]
• No
• Evap And Condenser Temps
• Evap Temps Only
• Evap Leaving Temp Only
[Low Oil Level Delay] - The time that must
elapse before the Low Oil Level Shutdown can
be initiated.
[Start Differential Pressure Below] – The com-
pressor will be inhibited from starting if the dif-
ference between the Discharge Pressure minus
the Suction Pressure is greater than this setpoint.
[Hot Gas Bypass (Capacity Slide %) %] - This
feature is optional, and the compressor must be
confi gured to use this. When the Slide Valve is
below this setpoint, the Hot Gas Bypass output
(digital board 1, channel 16) will energize to allow
hot gas (Discharge Pressure) to be re-circulated
back into the compressor. This allows the com-
pressor to continue to run when the actual load
doesn’t require the compressor to run.
[Permissive Start] – The input used for this fea-
ture is Module 20 of digital board 1. This feature
has three possible states:
• Disabled – The feature is disabled
• Starting – This input needs to be ener-
gized only to start the compressor.
• Always – This input must be energized
to start the compressor. If the com-
pressor is running, and this input is de-
energized, the compressor is stopped.
ECONOMIZER
[On When Above] - If the compressor is run-
ning, the Capacity is compared to this setpoint
and if the Capacity setpoint is above this value,
the Economizer output will be on.
[Off When Below] - If the compressor is run-
ning, the Capacity setpoint is compared to this
value and if the Capacity setpoint is below this
value, the Economizer output will be off.
[Pressure Input]
• Disabled
• Fixed Pressure Setpoint – If selected,
then the Pressure Setpoint (see below)
is used to calculate the Volume Ratio.
• Economizer Analog Input – If selected,
then this Input value will be used in cal-
culating the Volume Ratio.
[Pressure Setpoint] - This is the setpoint value
that will be used when the Pressure Input is set
to fi xed, to calculate the Volume Ratio.
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