Application Data; Operating Limits; Minimum Chilled Water Flow (Units Without Hydronic Module); Maximum Chilled Water Flow (Units Without Hydronic Module) - Carrier Aqua Force 30XA Installation, Operation And Maintenance Instructions

6 - aPPlICaTION DaTa

6.1 - Operating limits

Evaporator fluid temperature
Water entering temperature at start-up
Water entering temperature during operation
Water leaving temperature during operation
Note: If the leaving water temperature is below 4°C, a glycol/water solution or the
frost protection option must be used.
Condenser air temperature
Storage
Operation, standard unit
With winter operation option (option 28)
With high energy efficiency option (option 119)
Note: If the air temperature is below 0°C, a glycol/water solution or the frost
protection option must be used.
* Full or part-load operation, depending on the model
** Recommended for operation above 46°C
Operating range 30Xa
3.3
Evaporator leaving water temperature, °C
legend:
Part load average: from 46°C for standard unit
from 50°C with option 119.
Operating range, standard unit.
Below 0°C air temperature the unit must either be equipped with the
evaporator frost protection option (41A or 41B), or the water loop must be
protected against frost by using a frost protection solution (by the installer).
Operating range, unit equipped with option 28 (winter operation).
ATTENTION: Option 28 (Winter operation)
If the outside temperature is below -10°C and the unit has
been switched off for more than 4 hours, it is necessary to
wait 2 hours after the unit has been switched on again to
allow the frequency converter to warm up.
°C Minimum Maximum
- 45
6.8 21
3.3 15
°C Minimum Maximum
-20 68
-10 55*
-20 55*
-10 55*
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 evapo-
rator 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 Bypass
1
2
1
2
23