Carrier 30HXC - Very Low Temperature Option (Option 6); Very Low Temp Operating Range

23

   MHA    
 39 62 84 485 153 NA NA
 46 73 102 580 183 NA NA
 56 89 125 685 216 245 345
 66 107 153 820 259 290 410
 80 127 178 920 291 320 460
 80+ 148 214 1175 371 405 535

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

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 modications 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:

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.
        

   
Evaporator entering water temperature -7.2 21
Evaporator leaving water temperature -10 15

Evaporator entering water temperature -4.2 21
Evaporator leaving water temperature -7 15

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:
  
-6 25 27
-7 28 30
 30 NA
 33 NA
-10 35 NA