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6 - APPLICATION DATA
6.1 - Operating range
30XAV standard unit
50
40
30
20
10
0
-10
-20
2
4
6
Leaving evaporator water temperature, (°C)
Partial load > 50%
Partial load < 50%
Full load
Note:
-
Evaporator ∆T = 5K
-
These ranges are given by way of indication. Verify the operating range from the Carrier
electronic catalogue.
Legend
Operating range, standard unit 30XAV
Below 0 °C air temperature the unit must either be equipped with the evaporator freeze
protection option 41A, or the water loop must be protected against freeze by using a
freeze protection solution (by the installer).
For start-ups with air temperature below -5 °C, the machine must be equipped with
option 41A.
Evaporator water temperature
Entering water temperature at start-up
Leaving water temperature during
operation
Water outlet in operation
NOTE: The use of brine or antifreeze protection option is required if the water outlet temperature
is below 4 °C
Condenser air temperature
Storage
Operation
Standard unit
NOTE: If the air temperature is below 0 °C, a glycol/water solution or the freeze protection option
must be used.
*
According to the type of installation and air temperature
**
Operating at partial load.
***
Option 41A mandatory for start-ups below -5 °C.
20
8
10
12
14
16
°C
Minimum
Maximum
-
45**
6.8
21
3.3*
15
°C
-20 °C
68
-20 °C***
50**
6.2 - Minimum chilled water flow (units without
hydronic module)
The minimum chilled water flow is shown in the table on the
next page. If the system flow is less than this, the evaporator
flow can be recirculated, as shown in the diagram.
For minimum chilled water flow rate
Legend:
1
Evaporator
2
Recirculation
6.3 - Maximum chilled water flow (units without
hydronic module)
The maximum chilled water flow is shown in the table on the
next page. If the system flow exceeds the maximum value, it
can be bypassed as shown in the diagram.
For maximum chilled water flow rate
Legend:
1
Evaporator
2
Bypas
1
2
1
2
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