Table of Contents
Advertisement
Performance referring to the following conditions, according to standard UNI EN 14511:2022:
(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) Heating: outdoor air temperature 7°C db 6°C db; in/out water temp 30/35°C.
(4) Heating: 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) Heating: average climatic conditions; Tbiv=-7°C; temp.acqua ing./usc. 30/35°C.
(7) Indicative data subject to changes. For the correct value, always refer to the technical label on the unit.
(8) Calculated for a decrease in system water temperature of 20°C with a defrost cycle lasting 6 minutes.
(9) Sound mode: heating mode according to EN 12102:2022 Annex A; value determined on the basis of measurements made in accordance with
UNI EN ISO 9614-1, in compliance with Eurovent certification requirements.
(10) Sound pressure: value calculated from the sound power level in condition (9) using the standard UNI EN ISO 3744:2010.
(11) Heating: outdoor air temperature 7 °C b.s. 6 °C b.u.; inlet/outlet water temp. 55/65 °C.
activating the maximum Hz function.
(*)
N.B. performance data are indicative and are subject to change. Furthermore the performance declared in points (1), (2), (3) and (4) is in-
tended to refer to instantaneous power according to EN 14511:2022. The value declared in point (5) and (6) is determined according to UNI
EN 148252022.
12.2 UNIT AND AUXILIARY ELECTRICAL DATA
Unit power supply
Unit power supply
On board controller circuit
Remote controller circuit
Fans power supply
For sizes 0106, 0109, 0112 -
(*)
NOTE: The electrical data are subject to change due to updates. It is therefore always necessary to refer to the technical specifications label
applied on the right side panel of the unit.
13.
OPERATING LIMITS
13.1 EVAPORATOR WATER FLOW RATE
The nominal water flow rate refers to a 5°C temperature difference between the evaporator inlet and outlet. The maximum permitted flow rate
features a 3°C temperature difference while the minimum one has an 8°C temperature difference at the nominal conditions as shown in the
technical sheet.
Insufficient water flow rates can cause excessively low evaporation temperatures causing the safety devices to trigger and
stopping the unit and, in some extreme cases, forming ice in the evaporator and resulting in serious failures to the cooling
circuit.
For greater details, we have attached a table below with the minimum flow rates for the plate heat exchanger to guarantee proper operation
according to the model (please note: the water flow switch is applied to protect against failed triggering of the antifreeze probe due to the lack
of flow but does not guarantee the minimum water flow rate required for correct operation of the unit).
Minimum water flow to be assured in chiller
mode (condition (1) technical sheet) [l/s]
Maximum water flow to be assured in chiller
mode (condition (1) technical sheet) [l/s]
Flowmeter intervention flow [l/s]
Pay attention to the pressure levels of the hydraulic system: too low values can cause malfunctioning of the unit.
For very low pressure values in the hydraulic system, the flowmeter may show an unstable reading, so it is advisable to have an automatic load-
ing system or a pressure monitoring system. It is good practice to periodically vent the system, especially if very high temperature differences
are read between the inlet and outlet on the water side, as this could be a symptom of air bubbles in the circuit that reduce the available water
flow rate.
13.2 COOLING WATER PRODUCTION (SUMMER MODE)
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 evaluation of the modifications to be made according to the requirements. The
maximum temperature that can be maintained at steady state at the evaporator outlet is 25°C.
(*)
(**)
For sizes 0115, 0118.
(**)
Model i-290
i-290
V/~/Hz
V/~/Hz
V/~/Hz
V/~/Hz
V/~/Hz
Chiller mode
0106
0109
0112
0,16
0,26
0,32
0,43
0,68
0,85
0,100
0,133
0,167
Inverter air/water heat pumps with axial fans
230/1PH+PE/50
400/3PH+PE/50
12/1/50
12/1/50
230/1/50
0115
0118
0,37
0,41
0,99
1,09
0,200
0,250
51
- Quick Links:
- Table of Contents
Hide quick links:
Advertisement
Table of Contents
