WATER-COOLED LIQUID CHILLERS 30XW 254-1762
Operating limits
Entering temperature at start-up
-
35.0°C
Leaving temperature during operation
3.3°C*
20.0°C
Entering/leaving temperature difference at
full load
2.8 K
11.1 K
Entering temperature at start-up
13.0°C**
-
Leaving temperature during operation
19.0°C**
50.0°C***
Entering/leaving temperature difference at
full load
2.8 K
11.1 K
Evaporator
Condenser
***
Units with option 150
30XW--/30XW-P
Minimum
Maximum
Entering temperature at start-up
-
35.0°C
Leaving temperature during operation
3.3°C*
15.0°C
Entering/leaving temperature difference at
full load
2.8 K
11.1 K
13.0°C**
-
Leaving temperature during operation
23.0°C**
63.0°C
Entering/leaving temperature difference at
full load
2.8 K
11.1 K
*
**
For low-temperature applications, where the leaving water temperature is below 3.3°C,
a frost protection solution must be used. Please refer to option 5 and option 6.
For lower condenser temperatures, a water flow control valve m ust be used at the
condenser (two or three-way valve). Please refer to option 152 to ensure the correct
condensing temperature.
40
35
30
25
15
30XW-- (1154)/30XW-P (512-562-1012)
Minimum
Maximum
-
35.0°C
15
20
Evaporator leaving water temperature, °C
Minimum load limit approx. 15%
60
55
50
45
40
35
30
From approx. 60% to full load
25
20
Part load limit approx. 50%
0
5
10
15
20
Evaporator leaving water temperature, °C
Minimum load limit approx. 30%
70
EG 5
Option 5 with ethylene glycol
-6°C
15.0°C
PG 5
Option 5 with propylene glycol
-3°C
15.0°C
EG 6
Option 6 with ethylene glycol
-12°C
15.0°C
PG 6
Option 6 with propylene glycol
-8°C
15.0°C
Entering/leaving temp. difference at full load
2.8 K
11.1 K***
Entering temperature at start-up
13.0°C**
-
Leaving temperature during operation
19.0/
23.0°C**
55.0/
63.0°C****
Entering/leaving temp. difference at full load
2.8 K
11.1 K
Condenser
*
The operating range with evaporator leaving temperatures above 3°C is permitted, but
the performances are not optimised.
** For lower condenser temperatures, a water flow control valve must be installed at the
condenser (two-way or three-way). Please refer to option 152 to ensure the correct
condensing temperature.
*** Please refer to chapter 10.5 of the installation manual for the minimum recommended
evaporator glycol flow rate.
**** Depends on the conditions at the evaporator and the load conditions.
Notes: Ambient temperatures: During storage and transport of the 30XW units (including
by container) the minimum and maximum permissible temperatures are -20°C and
72°C (and 65°C for option 200).
For more precise details refer to the unit selection program.
I
E
R
2
0
1
6
/
2
0
1
7
Condenser leaving water temperature, °C
Leaving temperature during operation*
R
10
65
Entering temperature at start-up
R
5
65
Evaporator
A
Part load limit approx. 35%
0
Options 5 and 6
Units with options 5 and 6
C
From approx. 45% to full load
20
70
Condenser leaving water temperature, °C
Entering temperature at start-up
45
Option 150
Evaporator
Condenser
50
AIR TREATMENT
**
For low-temperature applications, where the leaving water temperature is below 3.3°C,
a frost protection solution must be used. Please refer to option 5 and option 6.
For lower condenser temperatures, a water flow control valve must be used at the
condenser (two or three-way valve). Please refer to option 152 to ensure the correct
condensing temperature.
Please refer to option 150 for applications with a high condenser leaving temperature
(up to 63°C).
55
60
55
50
45
40
EG 6
35
PG 6
EG 5
30
PG 5
25
20
15
-15
-10
-5
0
5
10
15
Evaporator leaving glycol temperature, °C
20
CONTROLS
*
Standard units
COOLING
Maximum
HEATING HEATING
Minimum
Condenser leaving water temperature, °C
Standard 30XW-- and 30XW-P units
Operating range permitted, but performances are not optimised
Full load with option 5/6 and ethylene or propylene glycol
Part load limit approx. 80%
Part load limit approx. 50%
Part load limit approx. 30%
257