Publicidad
Idiomas disponibles
Idiomas disponibles
30RA/30RH "B" Puron
Data
Table IV: Control and safety device settings
Refrigerant circuit high pressure switch
Water circuit safety valve
Freeze-up protection
Compressor first start delay
Compressor start delay (OFF-ON)
Compressor anti-cycling protection (OFF-ON)
*
When the compressor start delay has elapsed, the unit automatically restarts, if the
leaving water temperature is above 2.7°C.
Table V: Water flow / System water content
Unit
30 RA/RH
Water flow
l/s Nominal
System water content
l
30RH Max.
30RA Max.
Maximum operating pressure
Charge pressure
before operation
Maximum height difference
allowed with water at 50°C
Note:
Minimum head pressure
The minimum inlet head pressure at maximum water flow and a water
temperature of 50°C should be 13 kPa (about 1.3 mWG).
This precaution prevents cavitation noise and damage to the bearings
due to low water flow and insufficient bearing lubrication.
Table VI: Water content copper piping
Diameter-mm
outside
14
16
18
22
28
35
Table VII: Water content steel piping
Diameter
outside
inches
3/8 Gas
1/2 Gas
3/4 Gas
1 Gas
GB - 4
open
kPa
4206
kPa
300
°C
2.7
sec
60
sec
90
cycle/h
12
Mod.
005
007
009
011
0.25
0.31
0.37
0.46
17
22
27
32
Min.
30
45
65
65
50
50
100
100
300
300
300
300
kPa
120
120
120
120
kPa
20
20
20
20
m
inside
litres / metre
12
0.11
14
0.15
16
0.20
20
0.31
25
0.49
32
0.80
inside
litres / metre
mm
12.7
0.13
16.3
0.21
21.7
0.37
27.4
0.59
Table VIII: Operating limits
closed
Power supply :
2996
* ATTENTION:
---
For outside temperatures below 0° C, mix the correct amount of antifreeze
with the water.
*
Operating range - cooling
Maximum water temperature at start-up 35°C
18
15
10
4
013
-15 -10
-5
0.54
41
Operating range - heating
65
100
Minimum water temperature at start-up 3°C
300
55
50
120
45
40
35
20
30
25
20
15
-15
-10
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:
230 - 1 - 50
400 - 3 - 50
0
5
10
15
20
25
30
35
Outdoor air temperature °C
-7 -5
0
2
5
10
15
Outdoor air temperature °C
Min
Max
V
198
264
V
342
462
40
45
50
20
25
Publicidad
