AIR-COOLED LIQUID CHILLERS 30XAV 500-1150
Controls
■■ Energy management:
-- Internal time schedule clock controls chiller on/off
times and operation at a second set-point
-- The DCT (Data Collection Tool) records the alarms
history to simplify and facilitate service operations.
Touch Pilot control
Operating range
Standard Unit 30XAV 500-1150
Notes:
50
-
-
Legend
30
20
10
or start-ups with air temperature below -5 °C, the machine must be equipped with
F
option 41A.
0
-10
-20
2
4
6
8
10
12
14
Part load > 50%
Part load < 50%
Full load
16
Evaporator leaving water temperature, °C
C
A
HEATING HEATING
Operating range of standard unit 30XAV
elow 0 °C air temperature the unit must either be equipped with the evaporator
B
frost protection option 41A, or the water loop must be protected against frost by
using a frost protection solution (by the installer).
R
R
I
E
R
2
0
1
6
/
2
0
1
7
205
CONTROLS
Entering air temperature, °C
40
Evaporator ∆T = 5K.
These ranges are given by way of indication. Verify the operating range from the Carrier
electronic catalogue.
AIR TREATMENT
■■ New innovative smart control features:
-- An intuitive and user-friendly, coloured, 7" interface
-- Direct access to the unit’s technical drawings and the
main service documents
-- Screen-shots with concise and clear information in
local languages
-- Complete menu, customised for different users
(end user, service personnel and Carrier-factory
technicians)
-- Easy access to the controller box with inclined touch
screen mounting to ensure legibility under any lighting
conditions
-- Safe operation and unit setting: Password protection
ensures that unauthorised people cannot modify any
advanced parameters
-- Simple and “smart” intelligence uses data collection
from the constant monitoring of all machine
parameters to optimise unit operation
-- Night-mode: Cooling capacity management for
reduced noise level.
■■ U
nits with Touch Pilot control can be easily accessed
from the internet, using a PC with an Ethernet connection.
This makes remote control quick and easy and offers
significant advantages for service operations.
■■ AquaForce with Greenspeed® Intelligence is equipped
with an RS485 serial port that offers multiple remote
control, monitoring and diagnostic possibilities. When
networked with other Carrier equipment through the
CCN (Carrier Comfort Network - proprietary protocol), all
components form a HVAC system fully-integrated and
balanced through one of the Carrier’s network system
products, like the Chiller System Manager or the Plant
System Manager (optional).
■■ The 30XAV also communicates with other building
management systems via optional communication
gateways.
■■ The following commands/visualisations are possible from
remote connection:
-- Start/Stop of the machine
-- Dual set-point management: Through a dedicated
contact is possible to activate a second set-point
(example, unoccupied mode)
-- Demand limit setting: To limit the maximum chiller
capacity to a predefined value
-- Water pump control: These outputs control the
contactors of one/two evaporator water pumps.
-- Water pumps on reversal (only with options
116S/116U): These contacts are used to detect a
water pump operation fault and automatically change
over to the other pump.
-- Operation visualisation: Indication if the unit is
operating or if it is in stand-by (no cooling load)
-- Alarm visualisation.
COOLING
Remote management (standard)