Compressor Usage And Electrical Data Table; Application Data; Operating Limits 30Rw/Rwa; Operating Range 30Rw - Carrier Aquasnap 30RW Installation, Operation And Maintenance Instructions

Water-cooled/condenserless liquid chillers with integrated hydronic modules nominal cooling capacity 20-310 kw
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4.4 - Compressor usage and electrical data table

Compressor
I Nom I Max
lRA
reference
DQ 12 CA 025 EE 9.9
13.7
86
DQ 12 CA 001 EE 12.6
17.6
130
DQ 12 CA 002 EE 14.6
20.4
130
DQ 12 CA 031 EE 17.9
25.9
135
DQ 12 CA 032 EE 21.1
30.2
155
DQ 12 CA 027 EE 27
39
215
DQ 12 CA 028 EE 34
48
270
legend
I Nom Nominal current draw (A) at standard Eurovent conditions (see definition of conditions under nominal unit current draw)
I Max Maximum operating current (A) at 400 V
LRA
Locked rotor current (A)

5 - APPlICATION DATA

5.1 - Operating limits 30RW/RWA

30RW/30RWA
Entering water temp., °C
Evaporator
Minimum
At start-up
7.5
At shut-down
-
During operation
5 (note 1)
30RW Condenser
With hydronic module and
variable-speed pump
At start-up/during operation (min.) -15
During operation (max.)
Without hydronic module
At start-up/during operation (min.) 20 (note 2)
During operation (max.)
30RW Drycooler
With hydronic module and variable-speed pump
At start-up/during operation (min.)
During operation (max.)
Without hydronic module
At start-up/during operation (min.)
During operation (max.)
30RWA Air-cooled condenser
At start-up/during operation
With variable-speed fan
With fixed-speed fan
Notes
1
30RW/30RWA units can operate from 4°C to 0°C without modification.
In all cases the units must be configured for low leaving-water temperature,
and use of antifreeze is required.
2
30RW units without hydronic module operating below 20°C entering
condenser water temperature require the use of a three-way valve controlled
from the 0-10 V analogue output of the Pro-Dialog control.
3
For a flow rate corresponding to a condenser Δt of 5 K.
4
The maximum entering air temperature is based on the drycooler selection.
5
The minimum entering air temperature range is between 15 and 20°C (without
the use of three-way valves)
Operation at -15°C ambient temperature is possible with the use of a three-
way valve to maintain the required minimum condensing temperature (see
note 2).
6
The maximum entering air temperature is based on the remote condenser
selection.
IMPORTANT: Maximum ambient temperatures. For
storage and transport of 30RW units the minimum and
maximum temperatures must not go beyond -20°C and
50°C. It is recommended that these temperatures are used
for transport by container.
Circ. 30RW/30RWA
020 025 030 040 045 060 070 080
A
A1
B
A
A1
B
A
A2
B
A
A1
B
A
A1
B
A
B
A
B
leaving water temp., °C
Maximum
Minimum
Maximum
30
5 (note 1)
15
50
-
50
15
50
50
Entering water
leaving water
temperature, °C
temperature, °C
-
47 (note 3)
52
25
47 (note 3)
52
Entering air temperature, °C
-20
(note 4)
(note 5)
(note 4)
Entering air temperature, °C
Minimum
Maximum
-10
(note 6)
0
(note 6)
090
110 120
A1
A2
A1
5.759 mm
A2
A1 + A2
A1 + A2 A1
A2
A1 + A2

5.2 - Operating range 30RW

52
50
45
40
35
30
25
20
-10
45
40
35
30
25
20
15
10
5
0
-5
-10
-15
-20
-10
Notes 30RW
1
Evaporator and condenser ∆T = 5 K
2
For 30RW units without hydronic module with an entering condenser water
temperature below 20°C a three-way valve is required to allow operation, while
maintaining the correct condensing temperature.
3
For 30RW units equipped with a hydronic module the minimum entering water
temperature is -15°C.
4
Maximum leaving condenser water temperature is 52°C (at full load)
A
Standard unit with without antifreeze solution
B
Standard unit operation with the anti-freeze solution required and control
configuration for a leaving water temperature down to 0°C.
C
Standard unit operation with the anti-freeze solution required and control
configuration for a leaving water temperature down to -10°C.
D
Operation at high air temperature is based on the drycooler selected.
E
Operation at low air temperature is possible down to -20°C with a drycooler.
135 150
160
185
A1 + A2
A1 + A2
A1 + A2 A1
A1 + A2 B1
A1
A2
A1 + A2
C
B
A
-5
0
10
5
Evaporator leaving water temperature, °C
D
E
-5
0
10
5
Evaporator leaving water temperature, °C
210 245
275 300
A2
A1 + A2
A1
B2
B1 + B2
B1
A2
A1 + A2
B2
B1 + B2
15
15
15

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