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Air to Water Chiller&Heat Pump Unit
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Water Source Heat Pump
Cooling capacity from 4.77 to 140kW
Heating capacity from 5.1 to 163.9kW
 
Water to Water Unit
Indoor or outdoor installation
Heat recovery rate: 20-25%
 
Functions
Cooling                C&H            Heat Recovery
 
 
 
  
Characteristics
Structure
Panels and frame are made from galvanized steel protected with polyester powder painting to ensure total resistance to atmospheric agents.
Hermetic compressor
Single phase rotary type (mod.05÷07), single phase (mod. 08, 10, 12) and 3-phase (mod.08÷30) scroll type compressors, with built-in thermal overload cut-out and crankcase heater, mounted on rubber vibration dampers.
Evaporator
High efficiency plate type heat exchanger, factory insulated with flexible close cell material.
Condenser
High efficiency plate type heat exchanger, factory insulated with flexible close cell material.
Desuperheater
High efficiency stainless steel brazed plate heat exchanger, factory insulated with flexible close cell material.(optional)
Refrigerant circuit
Copper tube connection with charge valves, filter drier, thermostatic expansion valve (capillary for mod. 05÷14), gas-liquid separator, high pressure switch and low pressure switch.
The heat pump units are complete also with 4-way valve and one way valve.
Hydraulic circuit
Built with user side and source side water inlet/outlet connectors, water discharge connectors, air vent valve, (mod.05÷30 the user side is complete also with expansion vessel, water pump and flow switch. )
Electric panel
Consists of:
Compressor contactor,
Compressor protection breaker,
User side water pump contactor (for mod.05÷30)
User side water pump breaker (for mod.05÷30)
Microprocessor with function display
Optional
Sight glass which must be installed in factory,
Source side flow switch,
Source side water pump,
Anti-vibration rubber,
Metallic filter for the water circuit.
Heat recovery exchanger
Tube in tube heat exchanger
 
Nomenclature
L  WW   H    R    P  C   10  
①  ②     ③  ④  ⑤ ⑥  ⑦ 
① L: Lark air product                     ③ C: Cooling only                               ⑥Refrigerant type
② Unit type                                             H: Heat pump                                      --: R22
     AA: Air to Air                                 ④ Heat Recovery type                           A: R410a
     WA: Water to Air                               --: without heat recovery                 B: R134a
    WW: Water to Water                         R: with heat recovery                      C: R407c                             
                                                              ⑤ Heat exchanger                            ⑦ Model
                                                                   P: plate type
                                                                    T: tube in tube type
Technical data (R407C)
Model
Unit 
05
07
08
10
12
14
16
20
25
30
Nominal cooling capacity*
kW
4.77
6.9
9.02
10.82
12.83
14.75
17.18
20.89
26.62
31.93
Nominal heating capacity**
kW
5.1
7.38
9.67
11.86
14.35
17.16
18.82
22.36
28.7
34.22
COP
/
4.3
4.4
4.69
4.32
4.3
4
4.6
4.7
4.8
4.9
Hermetic compressors
Qty/circuit nr.
Nr.
1/1
1/1
1/1
1/1
1/1
1/1
1/1
2/2
2/2
2/2
Cooling power input*
kW
0.98
1.38
1.66
1.96
2.36
2.64
2.94
3.44
4.42
5.52
Heating power input**
kW
1.18
1.66
2.06
2.74
3.34
4.12
4.12
4.78
5.88
6.96
User side heat exchanger
Pressure drop
kPa
20
25
Water flow
m³/h
0.77
1.12
1.46
1.75
2.08
2.39
2.79
3.39
4.32
5.18
Source side heat exchanger
Pressure drop
kPa
8
12--18
m³/h
0.43
0.62
0.8
0.95
1.13
1.32
1.47
1.81
2.31
2.57
Dimension( mm)
L
610
610
610
610
610
610
610
1100
1100
1260
W
500
500
500
500
500
500
500
745
745
845
H
850
850
850
850
850
850
850
968
968
1050
Sound pressure level***
dB(A)
56
56
56
56
58
58
61
68
68
71
Net weight
kg
92
96
110
120
130
140
150
250
280
300
 
Model
 
38
50
56
65
75
90
110
130
140
Nominal cooling capacity*
kW
37.1
50.5
56.4
64.7
75.3
90.4
110
130
140
Nominal heating capacity**
kW
39.5
54.0
61
72.0
84.0
105
128
152
163.9
COP
/
4.4
4.3
4.5
4.6
4.7
4.5
4.6
4.7
4.7
Hermetic compressors  
Qty/circuit nr.
Nr.
2/2
2/2
2/2
2/2
2/2
4/4
4/4
4/4
4/4
Cooling power input*
kW
6.8
9.2
9.9
11.6
13.5
16.2
19.3
22.8
24.6
Heating power input**
kW
8.9
12.4
13.6
15.6
18
23
27.4
32.4
34.9
User side heat exchanger 
Pressure drop
kPa
42
38
40
43
45
40
40
42
42
Water flow
m³/h
6.38
8.68
9.7
11.13
12.95
15.5
18.9
22.4
24
Source side heat exchanger 
Pressure drop
kPa
60
51
53
58
58
41
41
44
45
Water flow
m³/h
7.55
10.27
11.4
13.12
15.27
18.33
22.25
26.29
28.32
Dimension (mm)
L
1260
1520
1520
1520
1520
1750
1750
1750
1750
W
845
960
960
960
960
900
900
900
900
H
1050
1078
1078
1078
1310
1500
1500
1500
1500
Sound pressure level***
dB(A)
63
67
69
70
72
74
77
77
77
Net weight
kg
330
450
460
540
540
560
590
630
650
 
Performance values refer to the following conditions:
* Source side water inlet/outlet temperature 18ºC/29ºC, user side water inlet/outlet temperature 12ºC/7ºC,
** Source side water inlet/outlet temperature 15ºC/7ºC, user side water inlet/outlet temperature 40ºC/45ºC,
*** Sound pressure measured at a distance of 1 m and a height of 1.5 m above the ground in an open field.
 
 
 
 
 

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