Operating limits
30RB (cooling mode)
*
**
53
48
43
30RB
Flow rate, l/s
Minimum
Maximum*
Maximum**
017
021
026
033
040
0.45
0.57
0.67
0.87
1.05
1.26
1.42
1.43
1.72
2.70
1.39
1.52
1.96
2.18
2.60
Maximum flow rate at an available pressure of 50 kPa (unit with hydronic module)
Maximum flow rate at pressure drop of 100 kPa in the plate heat exchanger (unit
without hydronic module).
38
Outside air temperature, °C
COOLING
Water heat exchanger water flow rate
33
28
23
18
13
8
3
-2
-7
-12
-4
-2
0
2
4
6
8
10
12
14
16
18
20
22
24
Evaporator leaving water temperature, °C
Operating range with anti-freeze solution and Pro-Dialog configuration.
Hydronic module
The hydronic module reduces the installation time. The unit
is factory-equipped with the main hydronic components
required for the installation: screen filter, water pump,
expansion tank, safety valve and pressure gauge.
The hydronic module is integrated into the unit without
increasing its dimensions and saves the space normally used
for the water pump.
The water heat exchanger and the hydronic module are
protected against frost down to -10°C, using an electric
resistance heater (standard) and pump cycling.
Typical hydronic circuit diagram
17-21 kW
26-40 kW
23
15
14
2
17
16
21
25
18
19
20
24
16
25
18
19
23
1
7
13
10
4
22
9
3
8
26
14
2
17
11
6
21
15
5
5
21
12
16
25
18
19
20
24
16
25
18
19
11
1
7
13
9
4
12
3
21
22
27
6
26
10
8
27
Hydronic module (unit with hydronic module)
Automatic water fill system option
Legend
Components of the unit and hydronic module
1. Screen filter
2. Expansion tank
3. Safety valve
4. High-pressure pump
5. Air purge
6. Water drain valve
7. Flow sensor
8. Plate heat exchanger leaving temperature sensor
9. Plate heat exchanger entering temperature sensor
10. Pressure gauge
11. Plate heat exchanger
12. Heat exchanger frost protection heater
13. Pipe frost protection heater
14. Shut-off valve (automatic water fill option)
15. Pressure reducer (automatic water fill option)
54
System components
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
Temperature sensor well
Air purge
Flexible connections
Shut-off valve
Screen fiter (obligatory for a unit without hydronic module)
Pressure gauge
Flow control valve (factory-supplied for field installation)
Charge valve
Frost protection bypass (when shut-off valves are closed in winter)
Pressure sensor
System drain valves
Plate heat exchanger drain valve
C
A
R
R
I
E
R
2
0
1
6
/
2
0
1
7