Nirvana Cycling Refrigerated Dryers
  



Ingersoll Rand's Nirvana Cycling Refrigerated Dryer provides reliability like no other dryer in its class: reliability that you can count on to protect your air system day in and day out; reliability built in by design.

  

  


The most reliable, the most energy efficient

The Nirvana is a genuine cycling dryer, incorporating innovative features that make it not only the most reliable, but the most energy efficient, dryer in its class. The key element central to the Nirvana's reliability and energy efficiency is its distinct, patented heat exchanger design. Providing high heat transfer with low pressure drop because of uniquely short flow length, the Nirvana heat exchanger presents a flow area three to five times that of an equivalent copper tubing exchanger, and it is self-cleaning, which greatly reduces the potential for fouling.

 
High heat transfer at work
 
    1 - An innovative corrugated and folded stainless steel panel is stacked inside two stainless steel shells, then welded together to form a unitized heat exchanger. This design ensures reliability through the elimination of dissimilar metals or tube in tube chaffing, which is a common cause for heat exchanger leaks and failures.
 
    2 - 100% stainless steel construction permits optimal heat transfer, resulting in a consistent pressure dew point.
 
    3 - Nirvana dryer's heat exchangers combine a high heat transfer coefficient with unmatched low pressure drop.
 
    4 - Corrosion-resistant 304L stainless steel is used in all the Nirvana dryer's heat exchangers, providing durability in environments unsuitable for copper or other metals.
  
  
Energy-efficient design

An advanced cycling dryer, the Nirvana provides significant savings because it does not waste energy costs through continuous operation of its refrigeration system, as do traditional non-cycling dryers

 
    Design includes a refrigeration system combined with a thermal mass that efficiently stores cold energy.
 
    Refrigeration compressor cycles off during periods of reduced load, while dryer continues to remove moisture and contaminants from the compressed air.
 
    Unique centrifugal separator design provides effective moisture separation maintaining consistent dew point, regardless of partial load operation.
  


Electronic no air loss (ENL) drain

Nirvana cycling dryers up to 2,400 SCFM are equipped with ENL condensate drains, which eliminate venting of compressed air to the atmosphere and are more reliable than traditional float- or solenoid-type drains.

  
  
 
Best in class design

The Nirvana cycling dryer uses centrifugal separation to remove moisture from the chilled air. Separation occurs at the coldest point in the system by means of centrifugal acceleration, then expands into an area of low velocity containing a sump, and change of air flow direction. The result is highly-efficient moisture removal, providing exceptionally dry, clean air under all operating conditions.

  
  
Microprocessor controller

The easy-to-use controller automatically manages dryer operation for optimum air treatment and for maximum energy efficiency.

 
    Simple and easily read interface with LED indication
 
    Digital display of chiller temperature available at a glance to ensure optimal dryer performance
 
    Percent of energy savings available at the touch of a button
 
    Automatic dryer restart in the event of a sudden loss of power
 
    Adjustable chiller temperature set point to further reduce energy expense
 
    Microprocessor control constantly monitors dryer functions including thermal mass temperature and provide alarms to minimize dryer downtime
  
  

  

  HOC Dryers Combined Specifications
Model
Air Capacity
Pressure Drop
(psig/barg)
Operating kW
Dimensions (in/mm)
Approx. Ship Wt.
(lbs /kg)
Air In/Out
(in)
(SCFM 38ºF/
3ºC m3/min)
Air
Cooled
Water
Cooled
W
D
W
NVC200
200/5.7
1.6/0.11
1.66
1.06
28/711
33/838
58/1473
620/282
1.5 NPT
NVC300
300/8.5
2.1/0.14
2.54
1.65
28/711
33/838
58/1473
735/334
2 NPT
NVC400
400/11.3
2.9/0.20
3.24
2.19
28/711
33/838
58/1473
745/339
2 NPT
NVC500
500/14.1
2.9/0.20
4.65
4.28
42/1067
40/1016
62/1575
1250/570
3 NPT
NVC600
600/17.0
3.0/0.21
4.82
3.14
42/1067
40/1016
62/1575
1275/580
3 NPT
NVC700
700/19.8
2.7/0.19
5.79
3.58
42/1067
40/1016
62/1575
1320/600
3 NPT
NVC800
800/22.7
2.9/0.20
6.50
4.16
42/1067
40/1016
62/1575
1415/643
3 NPT
NVC1000
1000/28.3
2.4/0.17
7.03
4.48
32/813
76/1930
69/1753
2315/1052
4 FLG
NVC1200
1200/34.0
3.1/0.21
8.72
5.48
32/813
76/1930
69/1753
2435/1107
4 FLG
NVC1600
1600/45.3
3.3/0.23
11.48
7.34
32/813
76/1930
69/1753
2785/1266
4 FLG
NVC2000
2000/56.7
3.5/0.24
13.18
9.09
34/864
91/2311
91/2311
4070/1850
6 FLG
NVC2400
2400/68.0
3.5/0.24
14.29
9.59
34/864
91/2311
91/2311
4150/1886
6 FLG
NVC3250
3250/92.1
3.0/0.21
18.03
14.77
75/1905
96/2438
100/2540
6330/2877
8 FLG
NVC4000
4000/113.3
3.0/0.21
21.77
15.26
75/1905
100/2540
96/2438
7060/3029
8 FLG
NVC4800
4800/136.0
3.0/0.21
28.72
19.32
75/1905
100/2540
96/2438
7200/3273
8 FLG
NVC6000
6000/170.0
3.0/0.21
32.65
22.89
110/2794
98/2489
101/2565
9870/4486
10 FLG
NVC8000
8000/226.6
3.0/0.21
43.54
30.52
143/3632
99/2515
102/2591
12575/5716
12 FLG

Performance data presented in accordance with CAGI standard ADF 100 under 100°F inlet temperature, 100°F ambient temperature and 100 psig conditions.
Maximum working pressure: NVC200 - 800, 230 psig; NVC1000 - 8000 SCFM, 220 psig.
Weights and dimension shown for NVC200-2400 air-cooled, NVC3250 and larger in water-cooled.
Average kilowatts per hour of dryer operation at full rated capacity.
Standard NVC200-800 SCFM models ETL-certified, 1000-2400 models UL 508 panels.
Available voltages 460-3-60, 575-3-60, 380-3-50. NVC200-400 available in 230-3-60 and 220-3-50. NVC200 available in 230-1-60.
Pressure drop ± 0.5 psig

  

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HBR was founded in 1985 with a focus on distribution of equipament for the compressed air market.

 

Industrial applications

Contact info

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