21
6.2 - Minimum chilled water fl ow (units without
hydronic module)
The minimum chilled water fl ow is shown in the table on
the next page. If the system fl ow is less than this, the
evaporator fl ow can be recirculated, as shown in the
diagram.
for minimum chilled water fl ow rate
1
2
legend:
1 Evaporator
2 Recirculation
6.3 - Maximum chilled water fl ow (units without
hydronic module)
The maximum chilled water fl ow is shown in the table on
the next page. If the system fl ow exceeds the maximum
value, it can be bypassed as shown in the diagram.
for maximum chilled water fl ow rate
1
2
legend:
1 Evaporator
2 Bypas
6 - aPPlIcaTIon daTa
6.1 - operating range
30XaV-ZE standard unit (for one circuit)
legend
Operating range, standard unit 30XAV-ZE
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
°c
Minimum
Maximum
Entering water temperature at start-up
-
45**
Leaving water temperature during
operation
6.8
21
Water outlet in operation
3.3*
15
noTE:
The use of brine or antifreeze protection option is required if the water outlet temperature
is below 4 °C
condenser air temperature
°c
Storage
-20 °C
68
operation
Standard unit
-20 °C***
50**
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
-10
0
10
20
30
40
50
2
4
6
8
10
12
14
16
Leaving evaporator water temperature, (°C)
Entering air temper
atur
e, (°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.
