Table of Contents
Advertisement
O O p p e e r r a a t t i i n n g g P P r r o o c c e e d d u u r r e e s s
refrigerant pressures, and freeze protection are
preserved. The distributed microprocessor control
programming only lacks the ability to rotate the lead
compressors which typically occurs every 168
compressor operating hours.
In a normal configuration, a secondary controller
controls the single module to which it is dedicated.
Figure 8. Typical controller network
Figure 9. Carel medium c.pCO primary controller
Operating the Microprocessor
The touchscreen interface panel is ready to use when it
is connected to the Ethernet switch and chiller power is
ON.
Upon initial startup, the status line will indicate that the
chiller is OFF. Press and hold the ON/OFF button on the
touchscreen interface panel; for few seconds to turn
the chillerON . The status line on the LCD screen of the
primary module will indicate that it is powered.
Press and hold ON-OFF button to toggle the chiller ON
and OFF.
Microprocessor Functions
For practical purposes, all essential control information
and operator actions are read and responded to using
the touchscreen interface panel. The touchscreen
24
The secondary controller monitors key performance
parameters for its module and sends real-time
information to the primary controller. The primary
controller monitors the performance of the chiller,
activating and deactivating modules as needed to
maintain the leaving water temperature for the chiller.
(See the following figure for a simplified example of a
typical microprocessor controller network.)
interface panel is connected to the primary
microprocessor controller and is the only way to access
many primary controller functions.
N N O O T T I I C C E E
C C o o m m p p o o n n e e n n t t D D a a m m a a g g e e ! !
F F a a i i l l u u r r e e t t o o f f o o l l l l o o w w i i n n s s t t r r u u c c t t i i o o n n s s c c o o u u l l d d d d a a m m a a g g e e
s s e e n n s s i i t t i i v v e e e e l l e e c c t t r r o o n n i i c c c c o o m m p p o o n n e e n n t t s s b b e e y y o o n n d d r r e e p p a a i i r r . .
T T o o p p r r e e v v e e n n t t a a r r c c i i n n g g o o r r s s u u r r g g e e s s o o f f e e l l e e c c t t r r i i c c a a l l c c u u r r r r e e n n t t , ,
d d o o n n o o t t u u s s e e w w i i r r e e s s o o r r c c a a b b l l e e s s t t o o j j u u m m p p c c o o m m p p o o n n e e n n t t s s o o r r
b b y y p p a a s s s s t t h h e e m m a a n n u u f f a a c c t t u u r r e e r r ' ' s s s s a a f f e e t t y y s s y y s s t t e e m m s s . .
Password Protection
There are three levels of access to the functions
displayed on the interface. The basic level, 'user,' does
not require a password. The higher access levels are
the technician ('tech') and administrator ('admin')
levels that can only be accessed by Trane technical
personnel. Contact Trane technical support regarding
the possibility of any potential issues involving the
higher-level functions.
Operator Control
A touchscreen interface panel is the primary means for
the operator or maintainer to monitor and modify a
host of functions involving temperatures, pressures,
set points alarms, operating schedules, and elapsed
operating hours. This touchscreen interface panel can
be located within proximity of the primary
microprocessor controller. It is typically located in the
primary module.
The touchscreen interface is connected to and
communicates with all module controllers via the
ARTC-SVX001B-EN
Advertisement
Table of Contents
