AIR-COOLED LIQUID CHILLERS 30XAS 242-482
No.
Description
Advantages
Use 30XAS
Compressor enclousure
279
Compressor sound enclosure
30XAS 242-482
Evaporator with aluminium
jacket
230 V electrical plug
281
4 to 10 dB(A) quiter than standard unit. Refer to the
physical data table for detailed values
Improved resistance to aggressive climate conditions
Carrier Connect link (BSS
regions only)
298
Evaporator covered with an aluminium sheet for thermal
insulation protection
230 V AC power supply source provided with plug socket
Permits connection of a laptop or an electrical device
and transformer (180 VA, 0,8 Amps)
during unit commissioning or servicing
3G router board
Enabler for Carrier Connect service offer
Note 1: Require option 149
Note 2: When more than one machine is installed on site,
only one of them shall be equipped with option 298, while
all of them must be equipped with option 149
Note 3: If a Carrier® PlantCTRL™ is on site, option 298 shall
be integrated in the Carrier® PlantCTRL™ while option 149
is still mandatory for each single unit.
30XAS 242-482
COOLING
30XAS 242-482
Fan with available pressure (option 10)
This option allows a duct connection at the discharge side
of the condenser fan. The unit is supplied with axial fans with
a speed of 15.8 r/s (option 119), each equipped with a duct
connection frame. The chiller can operate up to 60 Pa with
reduced performance.
Selection example
Example
30XAS 282 with 40 Pa pressure drop
Values for option 119 at the following conditions:
35°C outside air temperature
12/7°C entering/leaving water temperature
The base capacities are those of option 119. To obtain
capacities at various pressure drops use the correction
factors in the table opposite.
30XAS options 119 + 10
Sizes 282-482
Fan pressure drop, Pa
0
20
40
Correction factor
1
-3.5
-7.5
0
-0.5
-1.0
0
-1.5
-3.5
60
0
+3.5
% l/s
% kW
% kW/
kW
% kW
Power input
+1.0
+2.5
40 Pa
Air flow
l/s
22569 -7.5
Cooling capacity kW
280
-1
EER
kW/kW 3.17 -3.5
Selection at Eurovent conditions
Air flow
Cooling capacity
EER
0 Pa Correction
factor, %
30XAS 282
Power input
kW
88
20876
277
3,06
+3.5
90
-12.1
-1.5
-5.0
Total heat reclaim (option 50)
Suitable for heating, domestic hot water preparation,
agriculture and food industry, industrial processes and other
hot-water requirements.
Condenser water temperature Minimum Maximum
(°C)
With the total heat reclaim option it is possible to reduce
the energy consumption bill considerably compared to
conventional heating equipment such as fossil fuel boilers or
electric water tanks.
Evaporator water temperature Minimum Maximum
(°C)
If hot water production is required, the compressor discharge
gases are directed towards the heat reclaim condenser. The
refrigerant releases its heat to the hot water that leaves
the condenser at a temperature of up to 60°C. In this way
100% of the heat rejected by the liquid chiller can be used
to produce hot water. When the demand for heat is satisfied,
the hot gas is again directed towards the air condenser where
the heat is rejected to the outside air by the fans. Hot water
temperature control is ensured by the chiller Pro-Dialog+
control.
Entering temperature at start-up
Entering temperature during operation
Leaving temperature during operation
12.5*
20
25
6.8
3.3
55
55
60
45
21
15
* The entering water temperature at start-up must not fall below 12.5°C. For installations with a lower temperature a three-way valve must be used.
Note: If the evaporator leaving water temperature is below 4°C, a glycol-water solution
or the frost protection option must be used.
CONTROLS
Operating principle
Entering temperature at start-up
Entering temperature during operation
Leaving temperature during operation
Note: Heat reclaim is only possible, if the unit produces cold
water at the same time.
C
A
R
R
I
E
R
2
0
1
6
/
2
0
1
7
HEATING HEATING
284
30XAS 242-482
AIR TREATMENT
Options
163