Data - Carrier AQUASNAP JUNIOR 30RA015 User Manual

30RA015

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.
* The safety valve is not installed on the unit; make sure it has been installed on the hydraulic
circuit.
Table V: Water flow / System water content
Unit
30RA015
Water flow
System water content
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
open
kPa 3000
*
kPa 400
°C
2,7
sec 60
sec 90
cycle/h 12
l/s Nominal 0,7
l Min. 53
Max. 85
kPa 400
kPa 120
m 20
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 :
1900
---
**
* ATTENTION:
For outside temperatures below 0
antifreeze with the water.
Operating range - cooling
Maximum water temperature at start-up 35°C
18
15
10
4
-15 -10 -5
400 - 3 - 50
°
C, mix the correct amount of
0 5 10 15 20 25 30 35
°
Outdoor air temperature C
E N G L I S H
Min Max
V 342 462
40 45 50
GB- 3