i-32V5 Air/Water heat pumps wih axial fans
42
(1) Cooling: outdoor air temperature 35°C; in/out water temperature 12/7°C.
(2) Cooling: outdoor air temperature 35°C; in/out water temperature 23/18°C.
(3) Heang: outdoor air temperature 7°C db 6°C db; in/out water temp 30/35°C.
(4) Heang: outdoor air temperature 7°C db 6°C db; in/out water temp 40/45°C.
(5) Cooling: in/out water temperature 7/12°C.
(6) Heang: average climac condions; Tbiv=-7°C; in/out water temp 30/35°C.
(7) Indicave data subject to changes. For the correct value, always refer to the technical label on the unit.
UNIT AND AUXILIARY ELECTRICAL DATA
Unit power supply V/~/Hz 400/3PH+PE/50
On board controller circuit V/~/Hz 12/1/50
Remote controller circuit V/~/Hz 12/1/50
Fans power supply V/~/Hz 400/3PH+PE/50
For sizes 04, 06, 08, SL08, 10, 12, SL12 14 e 16, SL16* - For sizes 10T, 12T, SL12T, 14T, 16T, SL16T e 18T**
12. OPERATING LIMITS
EVAPORATOR WATER FLOW RATE
The nominal water ow rate refers to a 5°C temperature dierence between the evaporator inlet and outlet. The maximum permied ow rate
features a 3°C temperature dierence while the minimum one has an 8°C temperature dierence at the nominal condions as shown in the
technical sheet.
For greater details, we have aached a table below with the minimum ow rates for the plate heat exchanger to guarantee proper operaon
according to the model (please note: the water ow switch is applied to protect against failed triggering of the anfreeze probe due to the lack
of ow but does not guarantee the minimum water ow rate required for correct operaon of the unit).
Model
i-32V5
04 06 10 10T
SL12
SL12T
14 14T
SL16
SL16T
Minimum water ow to be assured in
chiller mode (condion (1) technical
sheet) [l/s]
0,13 0,15 0,17 0,23 0,25 0,34 0,34 0,41
Maximum water ow to be assured in
chiller mode (condion (1) technical
sheet) [l/s]
0,34 0,40 0,46 0,60 0,68 0,92 0,92 1,10
[l/s] Minimum ow switch water ow
rate* [l/s]
0,117 0,117 0,117 0,153 0,153 0,153 0,262 0,262
Maximum ow switch water ow
rate* [l/s]
0,132 0,132 0,132 0,175 0,175 0,175 0,293 0,293
* When the ow rate drops below the indicated limit (ow switch minimum water ow rate) the ow switch issues an alarm, which may be reset
only upon reaching the maximum indicated ow rate.
The minimum permissible temperature at the evaporator outlet is 5°C. For lower temperatures, contact our technical department. In this case,
contact our technical department for a feasibility study and evaluaon of the modicaons to be made according to the requirements. The
maximum temperature that can be maintained at steady state at the evaporator outlet is 25°C.
When the system has reached steady state, the water inlet temperature must not drop below 25°C: lower values, not due to transient phases
or reaching steady-state, can cause system failures and could possibly break the compressor. The maximum outlet water temperature must not
exceed 60°C.
There could be failures to the regular operaon of the unit or, in more crical cases, the safety devices could be triggered due to temperatures
higher than those indicated, especially if coupled with reduced water ow rates.
AMBIENT AIR TEMPERATURE AND SUMMERISED TABLE
The units are designed and built to operate in summer mode, with condensaon control, at outdoor air temperatures between -10°C and +46°C.
In heat pump mode, the allowed temperature range of the outdoor air is from -19°C to 39°C depending on the outlet water temperature as
shown in the table below.
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