Portable Air to Water Heat Pump Chiller for Milk Cooling
Characteristics
Structure
Panels and base frame are made from galvanized steel protected with polyester powder painting to ensure total resistance to atmospheric agents
Compressor
Hermetic scroll type compressor, equipped with the crankcase heater and thermal protection with thermal overload cut-out and crankcase heater mounted on rubber vibration isolators
Axial fan
External rotor type axial fans, equipped with single phase direct drive motors, low noise 6 poles, protection level IP54, provided with a protective outlet grille
Evaporator
High efficiency and low pressure drop stainless steel (AISI 316) water exchangers, with anti-freeze heating element (option) and differential pressure switch, factory insulated with flexible close cell material
Condenser
Coils are consisting of seamless copper tubes mechanically expanded into blue hydrophilic aluminum fins,100% fully quality tested; sub cooling circuit to prevent freezing at the base (optional); protected with metal grill
Desuperheater
High efficiency stainless steel brazed plate heat exchanger, factory insulated with flexible close cell material(optional)
Refrigerant circuit
Copper tube connection with charge valve, filter, sight glass, gas-liquid separator, thermostatic expansion valve, low pressure switch with automatic reset, high pressure switch with manual reset . The heat pump unit is completed also with 4-way valve, liquid receiver and one way valve
Water circuit
Built with air vent valve, water drain connection, and female-threaded hydraulic connectors
Water pump (8kW-30kW), differential pressure switch
Expansion tank (8kW-30kW)
Electric panel
Consists of:
Compressor contactor
Compressor protection breaker
Fan motor protection breaker
Control circuit protection breaker
Phase sequence relay (only for 3-phase)
Programmable microprocessor controller
Optional
Additional electric heater embedded in the coils for defrosting in low temperature ambient. It must be factory installed
Stainless steel covering
Remote condenser
Tube in tube heat exchanger
Water circuit electric heater
Technical Data
| Model |
Unit |
20 |
25 |
30 |
35 |
40 |
50 |
| Cooling * |
|
| Cooling capacity |
kW |
21.5 |
24.8 |
30 |
35.6 |
41 |
50.6 |
| Cooling input (without water pump) |
kW |
8.2 |
9.03 |
9.39 |
13.2 |
15.02 |
18.8 |
| EER |
/ |
2.62 |
2.75 |
3.19 |
2.7 |
2.73 |
2.69 |
| Heating ** |
|
| Heating capacity |
kW |
26.3 |
29 |
34 |
41.8 |
47.2 |
60 |
| Heating input (without water pump) |
kW |
8.7 |
9.23 |
9.43 |
14.3 |
15.57 |
20.45 |
| COP |
/ |
3.02 |
3.14 |
3.61 |
2.92 |
3.03 |
2.93 |
| Hermetic compressor |
|
| Type |
/ |
|
| Quantity/ circuit |
/ |
2/2 |
2/2 |
2/2 |
2/2 |
2/2 |
2/2 |
| Evaporator |
|
| Type |
/ |
|
| Water flow |
m3/h |
3.7 |
4.3 |
5.2 |
6.1 |
7.1 |
8.7 |
| Water side pressure drop |
kPa |
38 |
39 |
42 |
50 |
52 |
52 |
| Water connection size |
mm |
DN40 |
DN40 |
DN40 |
DN40 |
DN40 |
DN40 |
| Circulating pump |
|
| Power input |
kW |
0.75 |
0.75 |
0.92 |
--------- |
--------- |
----------- |
| Axial fans |
|
| Quantity |
Nr. |
1 |
1 |
1 |
2 |
2 |
2 |
| Airflow |
m3/h |
9000 |
9000 |
12580 |
17000 |
17000 |
22000 |
| Overal dimension |
|
| Length |
mm |
1600 |
1600 |
1600 |
2000 |
2000 |
2000 |
| Width |
mm |
900 |
900 |
900 |
900 |
900 |
900 |
| Height |
mm |
1080 |
1080 |
1080 |
1080 |
1080 |
1080 |
| Noise level *** |
dB(A) |
66 |
66 |
68 |
70 |
70 |
70 |
| Net weight |
kg |
270 |
290 |
310 |
360 |
380 |
465 |
* Ambient temperature 35ºC; user side water in/out 12/7ºC.
** Ambient temperature 7ºC; user side water in/out 40/45ºC.
*** Sound pressure measured at a distance of 1 m and a height of 1.5 m above the ground in an ideal field (fan side).
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