Electrical Data For Units With High Condensing Temperatures - Carrier 30HXC Series Installation, Operation And Maintenance Instructions

6 - ELECTRICAL DATA FOR UNITS WITH HIGH CONDENSING TEMPERATURES

30HXC 150 and 150A Options
30HXC
Power circuit
Nominal power supply (Un)
Voltage range
Control circuit supply
Max. power input**
Circuit A
Circuit B
Max. current drawn (Un - 10%)***
Circuit A
Circuit B
Maximum current drawn (Un)***
Circuit A
Circuit B
Max. starting current, std. unit (Un)****
Circuit A****
Circuit B****
Max. starting current/max. current draw
ratio, unit
Max. starting current/max. current draw
ratio, circuit A
Max. starting current/max. current draw
ratio, circuit B
Max. starting current - reduced current
start (Un)****
Three-phase short circuit holding current kA
Circuit A
Circuit B
Customer standby capacity, unit or circ. A,
for evaporator water pump connections† kW
** Power input, compressor, at unit operating limits (evaporator water entering/leaving temperature = 15°C/10°C, condenser entering/leaving water temperature = 40°C/45°C) and a nominal
voltage of 400 V (data given on the unit name plate).
*** Maximum unit operating current at maximum unit power input.
**** Maximum instantaneous starting current (maximum operating current of the smallest compressor(s) + locked rotor current or reduced starting current of the largest compressor)
† Current and power inputs not included in the values above
N/A Not available
The 30HXC 080-375 units for high condensing temperatures
are directly derived from the standard models. Their applicat-
ion range is the same as that of the standard units, but permits
operation at condenser leaving water temperatures up to 63°C.
The PRO-DIALOG control offers all the advantages of the
standard units, plus control of the condenser leaving water
temperature.
The main modifications are:
- Use of 30GX compressors
- Modification of electrical components to operate with
compressors for high condensing temperatures.
- Modification of heat exchangers to meet pressure code
requirements (if necessary).
Option 150
These units are designed for traditional applications for water-
cooled units, but for higher condender leaving water
temperatures than 45°C.
Like the standard units they are equipped with condenser
entering and leaving water sensors, installed on the piping.
It is possible to control the machine at the condenser water
outlet, requiring a factory configuration change and the use of
a heating/cooling inlet reversing device.
Option 150A
These units are designed for water-to-water heat pumps.
They are factory configured as heat pumps (heating/cooling
control as a function of the remote reversing device). The
condenser incorporates thermal insulation that is identical to
that of the evaporator.
080 090 100 110
V-ph-Hz 400-3-50
V 360-440
The control circuit is supplied via the factory-installed transformer
kW 104 117 131 145
kW - - - -
kW - - - -
A 190 215 240 265
A - - - -
A - - - -
A 173 195 218 241
A - - - -
A - - - -
A 277 312 335 379
A - - - -
A - - - -
1.61 1.60 1.54 1.57
- - - -
- - - -
A std. std. std. std.
25 25 25 25
kA - - - -
kA - - - -
8 8 8 11
120 130 140 155 175
159 174 194 211 230
- - - - -
- - - - -
290 320 355 385 420
- - - - -
- - - - -
264 291 323 350 382
- - - - -
- - - - -
402 435 519 546 578
- - - - -
- - - - -
1.52 1.49 1.61 1.56 1.51
- - - - -
- - - - -
std. std. std. std. std.
25 25 25 25 25
- - - - -.
- - - - -
11 11 15 15 15
Technical information
All information is identical to that of the standard 30HXC
units, except for the following paragraphs.
Selection
There are no nominal conditions for this unit type. The
selection is made using the current electronic catalogue.
Dimensions
These are identical to those of the standard 30HXC units. The
only difference is in the diameter of the incoming field wiring
connection, described in the chapter "Recommended selection".
Refer to the dimensional drawings for these units, before
proceeding with the wiring.
Compressor
See 30GX compressor table.
Options and accessories
All options available for the standard 30HXC units are compa-
tible, except:
Option 5, brine unit
Option 25, soft start, 30HXC 200-375 units
Attention:
If units have two different operating modes - one with high
condensing temperature and the other with low condensing
temperature - and the transition is made with the unit in
operation, the temperature must not vary by more than 3 K
per minute. In cases where this is not possible, it is recom-
mended to go through a unit start/stop switch (remote start/
stop available for standard units).
190 200 230 260 285
263 271 310 345 395
- 175 195 230 263
- 96 115 115 132
480 495 564 630 720
- 320 355 420 480
- 175 210 210 240
436 450 514 573 655
- 291 323 382 436
- 159 191 191 218
618 1251 1549 1608 1701
- 1092 1358 1417 1483
- 960 1226 1226 1265
1.42 2.78 3.02 2.81 2.60
- 3.75 4.21 3.71 3.40
6.03 6.42 6.42 5.80
std. N/A N/A N/A N/A
25 N/A N/A N/A N/A
- 25 25 25 25
- 15 15 15 15
15 15 18 18 30
310 345 375
422 460 526
211 230 263
211 230 263
770 840 960
385 420 480
385 420 480
700 764 873
350 382 436
350 382 436
1735 1799 1920
1385 1417 1483
1385 1417 1483
2.48 2.36 2.20
3.96 3.71 3.40
3.96 3.71 3.40
N/A N/A N/A
N/A N/A N/A
25 25 25
25 25 25
30 30 30
Special unit
Not available
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