Carrier 30HXC Series, Инструкции по установке, эксплуатации и обслуживанию

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5.8 - Compressor electrical data - 30HXC + option 60/61 + option 150/150A
Reference Size I nom. MHA LRA LRA (Y) LRA (S) 1 cp. LRA (S) 2 cp.
06NA2123W6N 39 62 84 485 153 NA NA
06NA2146W7N 46 73 102 580 183 NA NA
06NA2174W7N 56 89 125 685 216 245 345
06NA2209W7N 66 107 153 820 259 290 410
06NA2250W7N 80 127 178 920 291 320 460
06NA2250W7E 80+ 148 214 1175 371 405 535
Legend
06NA - Compressor for air-cooled units
N - Non-economized compressor
E - Economized compressor
I nom. - Average current draw of the compressor at ARI conditions
MHA - Must hold amperes (maximum operating current) at 342 V (A)
LRA - Locked rotor current with across-the-line start
LRA (Y) - Locked rotor current at reduced current (star/delta start-up mode)
LRA (S) 1 cp. - Start-up with reduced current with electronic starter (start-up duration 3 seconds max.) for one compressor per circuit
LRA (S) 2 cp. - Start-up with reduced current with electronic starter (start-up duration 3 seconds max.) for two compressors per circuit
6 - UNIT CHARACTERISTICS FOR 30HXC UNITS WITH VERY LOW TEMPERATURE OPTION (OPTION 6)
The 30HXC units with the very low temperature option are
directly derived from the 30HXC models equipped with the high
condensing temperature option (option 150). Unit sizes available
with the very low temperature option are the following: 30HXC
090, 110, 130, 155, 175, 200, 230, 260, 310, 345.
Their application range allows the production of glycol/water
solution down to -10°C with ethylene glycol at 35% (by weight)
or down to -7°C with propylene glycol at 30% (by weight). The
precision of these amounts is critical for correct unit operation.
In addition to the ones already listed for the high condensing
temperature option (see chapter 4.4) the main modifications are:
•
the evaporator is equipped with reinforced thermal 38 mm
insulation,
•
the electronic expansion valves are changed,
•
the use of a wide-band oil differential sensor.
All technical data is the same as for the 30HXC units with option
150 except for the following chapters:
6.1 - Options and accessories
The options available for the 30HXC units equipped with the very
low temperature option are as follows: 20, 22, 60, 61, 84, 84D,
84R, 92, 104A, 107, 107A, 152, 193, 194, 197, 199.
6.2 - Operating range, 30HXC units with very low
temperature option
30HXC evaporator with 35% ethylene glycol °C Minimum Maximum
Evaporator entering water temperature -7.2 21
Evaporator leaving water temperature -10 15
30HXC evaporator with 30% polypropylene glycol
Evaporator entering water temperature -4.2 21
Evaporator leaving water temperature -7 15
30HXC condenser
Condenser entering water temperature 20 50
Condenser leaving water temperature 25 55
Outdoor air temperature 6 40
For very low temperature applications the anti-freeze solution is
critical for correct unit operation. The following amounts (by
weight) are required:
Evaporator leaving water, °C Ethylene glycol, % Propylene glycol, %
-6 25 27
-7 28 30
-8 30 NA
-9 33 NA
-10 35 NA