ARTC-SVX005B-EN
39
Compressor Overview Screens
Use the left and right scrolling buttons to scroll through
the overview screens.
Table 8. The overview screens 2
Primary Overview 2 Screen
Secondary Overview 2 Screen
The overview menu is comprised of two screens:
Overview 1 and Overview 2. These two screens are
different for the primary and secondary modules.
Compressor 1 and Compressor 2
Each module is equipped with tandem compressors.
The module overview screen reports conditions in each
compressor individually:
Compressor En/Dis
Pressing this button enables or disables a compressor.
It is used for testing and maintenance purposes.
Comp Status
•
C
Co
om
mp
prre
esssso
orr O
Offff - The compressor is off and can’t
be turned on.
•
R
Re
ea
ad
dy
y - Compressor is off but can be turned on.
•
O
OF
FF
F b
by
y S
So
ou
urrcce
e F
Fllo
ow
w - The compressor is waiting
for the Source Flow.
•
O
OF
FF
F b
by
y C
Co
on
nd
d F
Fllo
ow
w - The compressor is waiting for
Condenser Flow.
•
O
OF
FF
F b
by
y E
Ev
va
ap
p F
Fllo
ow
w - The compressor is waiting for
the Evaporator Flow.
•
O
OF
FF
F b
by
y M
Miin
n O
Offff - The compressor is cycling
through safety Minimum Off Time.
•
O
OF
FF
F b
by
y S
Sw
wiittcch
h - The compressor is off by HMI En
button.
•
O
OF
FF
F b
by
y A
Alla
arrm
m - The compressor is off by alarm.
•
R
Ru
un
nn
niin
ng
g - The compressor is running.
•
O
ON
N b
by
y M
Miin
n O
On
n - The compressor is running and
cycling through safety Minimum On Time.
•
S
Stta
arrtt D
De
ella
ay
ye
ed
d - First Compressor - waiting for EXV
to open to preset position (70% by default); Second
Compressor - cycling through Compressor Staging
Delay.
•
O
OF
FF
F b
by
y S
SS
ST
T - The second compressor is off by too
low Saturated Suction Temperature.
•
O
OF
FF
F b
by
y S
SD
DT
T - The second compressor is off by too
high Saturated Discharge Temperature.
Communication
This LED indicates if PLC is communicating to
compressor control device either protection module or
VSD (Variable Speed Drive).
Local Temp Cntrl
This indicator applies only if module is running in
stand-alone mode:
•
C
Cn
nttrrll T
Te
em
mp
p H
Ho
ott // C
Co
olld
d - This is the local module’s
hot or chilled water temperature control sensors.
•
T
Te
em
mp
p S
SP
P H
Ho
ott // C
Co
olld
d - This is the local module’s
heating and cooling temperature control set points.
This can only be adjusted by ‘tech’ or ‘admin’
access levels.
•
D
De
em
ma
an
nd
d H
Ho
ott // C
Co
olld
d - This is the local cooling and
heating demand value in terms of the number of
requested compressors.
•
T
Te
em
mp
p D
D
+ - This is the temperature control
differential above the set point or positive dead
band.
•
T
Te
em
mp
p D
Diiffff -- - This is the temperature control
differential below the set point or negative dead
band. Together, both of differentials define the
temperature control dead band.
•
T
Te
em
mp
p S
Stta
ag
ge
e--U
Up
p D
De
ella
ay
y - When a compressor has
been staged up, this delay must elapse before the
next compressor can stage up.
Содержание Arctic PolyTherm TM Series
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