Data - Carrier 30RA015 Manual De Instalación

30RA015 "B"

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
sec
cycle/h
l/s Nominal 0,7
l 53
Min.
85
Max.
400
kPa
120
kPa
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 :
1900
---
**
* ATTENTION:
60 For outside temperatures below 0° C, mix the correct amount of anti-
freeze with the water.
90
12
Maximum water temperature at start-up 35°C
18
15
10
4
-15 -10
400 - 3 - 50
Operating range - cooling
-5 0 5 10 15 20 25 30
Outdoor air temperature °C
E N G L I S H
Min Max
V 342 462
35 40 45 50
GB- 3