GB - 4
30RHV
Table VIII: Operating limits
Data
Table IV: Control and safety device settings
Min
Max
Power supply :
230 - 1 - 50
V
207
253
400 - 3 - 50
V
360
440
* ATTENTION:
For outside temperatures below 0
°
C, mix the correct amount of
antifreeze with the water.
Operating range - cooling
Leaving water
temperature
°
C
Outdoor air temperature
°
C
Operating range - heating
Leaving water
temperature
°
C
Outdoor air temperature
°
C
Maximum water temperature at start-up (LWT) 3
°
C max.
-15 -10 -5 0 5 10 15 20 25 30 35 40 45 50
18
15
10
4
-15 -12 -7 -5 0 2 5 10 15 20 25
55
50
45
40
35
30
25
20
15
Maximum water temperature at start-up (LWT) 35
°
C max.
Important note:
Use of the buffes tank is not obligatory.
It may be necessary to use it to reach the minimum volumes shown
in table V.
Refer to the following example for the buffes tank:
open
closed
Refrigerant circuit high pressure switch
kPa
4206
2996
Freeze-up protection
°
C
2.7
*
Compressor first start delay
sec
60
Compressor start delay
sec
90
(OFF-ON)
Compressor anti-cycling protection
cycle/h
12
(OFF-ON)
*
When the compressor start delay has elapsed, the unit automatically restarts, if the
leaving water temperature is above 2.7
°
C.
Unit
30 RHV
Mod.
006
008
011
Water flow
l/s
Nominal
0.29
0.38
0.51
System water content
l
Min.
22
27
32
Maximum operating pressure
kPa
300
300
300
Charge pressure
before operation
kPa
120
120
120
Table V: Water flow / System water content
Diameter-mm
outside
inside
litres / metre
14
12
0.11
16
14
0.15
18
16
0.20
22
20
0.31
28
25
0.49
35
32
0.80
Table VI: Water content copper piping
Diameter
outside
inside
litres / metre
inches
mm
3/8 Gas
12.7
0.13
1/2 Gas
16.3
0.21
3/4 Gas
21.7
0.37
1 Gas
27.4
0.59
Table VII: Water content steel piping
