Adsorption – premium efficiency

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Heat of Compression Dryers

Clean, Dry Oil-Free Air: Ingersoll Rand heat of compression (HOC) dryers provide energy efficiency, flexibility, reliability and instrument quality air at operating costs well below those of typical desiccant dryer designs.

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Energy efficiency

HOC dryers utilize the heat already generated by the air compression process, which is normally considered waste
Low pressure drop desþ conserves energy by permitting the air compressor to run at lower pressures
Highly efficient, patented stainless steel water-to-air heat exdrangers provide optimal performance
The Standard water-cooled HOC model consumes less than 150 watts, whidr is equivalent to the energy consumed by one light bulb

HOC at work saving you energy

1. Hot air from one or more compressors enters the dryer.

2. Heat energy from the hot air removes moisture from the desiccant being regenerated.

3. Hot air enters the heat exchanger and is cooled causing moisture to condense.

4. Condensate is removed from the air through a moisture separator.

5. Air flows through the drying vessel, where any remaining moisture is adsorbed by the desiccant

6. Air exits through a filter providing high quality, instrument grade compressed air.

Flexibility to accommodate your application

Ingersoll Rand recognizes that each customer’s application is unique. That is why we designed our HOC dryers with flexibility to accommodate:

Air-cooled or water-cooled applications

Ingersoll Rand or other oil-free compressors

Existing compressors through field upgradable/ retroflt options

The HOC dryer was also specifically designed with a low profile to facilitate ease of installation and maintenance as well as promote safety.

Critical components are within easy reach for safe and simple maintenance

Low overall height fits areas with low overhead clearance

Reliability you can count on

Tried-and-true components, combined with innovative tedrrology, yield reliable HOC dryers.

High performance switdring valves are desþed for high temperature compressed air service

Highly efficient, patented stainless steel water-to-air heat exchangers provide optimal performance under the harshest conditions
Long lasting, high quality desiccant ensures reliable dew point performance

No-loss drains with auto-bypass ensure condensate removal

Superior features, solid dependability

Performance. Os secadores Ingersoll Rand HOC fornecem consistentemente um ar limpo e seco para processos críticos.

Instrument quality air for a variety of applications

Optional advanced HOC model with Smart Control provides -40″C (-40’F) pressure dew point from 0% to 100% load

Unique twin-cooler design minimizes dew point and temperature flucluations

Advanced HOC model can be used with muþle compressors, resulting in a reduced footprint and lower installation costs

Full-featured controller comes standard

The new full-featured controller on Ingersoll Rand HOC dryers is user-friendly to set up and intuitive to operate

Interface: simple navigation, icon-based interface with backlit LCD display, integrated toucþad and multiple language

Operation: precise control of valve positioning real-time dryer function monitoring and alarm logging

Indicators: multi-point critical temperature tracking, maintenance alerts and key alarms

Communications: modbus via RS-485 interface and compatibility with Ingersoll Rand system automation

How smart control works

Reliable, high quality air-lngersoll Rand Advanced HOC dryers use Smaft Control to adapt dryer operation to system and, o environmental changes, ensuring a constant -40’C (-40″F).

Smart Control continually scans environmental and system parameters and make adjustments to minimize temperature fluctuations and provide air at a constant dew point.

Why smart control

The problems created by having moisture in your compressed air system can range from an annoyance to wreaking havoc on your equÍpment and end products.

Premature wearing and scoring of surfaces

Rust and conosion in tools, piping and equipment

Damaged instruments

Spoiled paint surfaces

Increased scrap rate

Unsafe or unpleasant work environment

Models Specifications ▽

HOC Dryers Combined Specifications
Model*	Capacity		Inlet/Outlet Connection	Dimensions* Length x Width x Height			Weight Approximate		Compatible Compressors
Model*	m3/h	scfm		cm (in)			kg	lb	Nirvana hp	Sierra hp	Centac hp
D420EH/A	420	250	1-1/2″ FPT	143 (58) x	152 (60) x	193 (76)	920	2,020	50	50-60	–
D680EH/A	680	400	2″ FPT	221 (87) x	193 (76) x	236 (93)	1,300	2,870	75	60-75	–
D850EHS/A	850	500	2″ FPT	221 (87) x	193 (76) x	236 (93)	1,640	3,610	100	100	–
D1020EH/A	1,020	600	3″ FPT	221 (87) x	193 (76) x	236 (93)	1,970	4,350	125	125	–
D1360EH/A	1,360	800	3″ FPT	224 (86) x	213 (84) x	221 (87)	2,180	4,800	150	150	–
D2040EH/A	2,040	1,200	4″ FLG	259 (102) x	224 (88) x	221 (87)	3,050	6,730	200	200-250	–
D2720EH/A	2,720	1,600	4″ FLG	264 (104) x	229 (90) x	252 (99)	3,400	7,490	–	300-400	–
D36B0E/A	3,680	2,165	6″ FLG	328 (129) x	244 (96) x	252 (99)	4,670	10,290	–	–	1664/(755)
* “S” for Standard model and “A” forAdvanced model Dimensions for water-cooled models Dryers rated at 7 bar g (100 psig), 35°C (95°F) ambient air temperature and 29°’C (85°F) water temperature for water-cooled dryers.

Standard Features	Standard	Advanced
Ul-listed, NEMA 4 electrical enclosures	•	•
Tower insulation	•	•
High-performance switching valves	•	•
No-loss drain system	•	•
High condensate alarm with back-up drain	•	•
High-efficiency separator	•	•
Tower pressure gauges	•	•
Tower tempemture gauges	•	•
Stain-less steel heat exchanges	•	•
1 micron after-filter	•	•
ASME vessels	•	•
Modbus connectivity	•	•
Remote alam contact	•	•
Remote start/top	•	•
Full-featured controller	•	•
Smart Control with constant -40°C (-40°F) dew point	•	•
Optional Features	Standard	Advanced
Air-cooled	o	o
Dew point transmitter	o	o
Three-valve dryer bypass	o	o
Stainless steel conhol air tubing	o	o
NEMA 4X stainless steel enclosures	o	o
Class I Div 2	o	N/A
• Standard Feature o Optional Feature

Heat of Compression Dryers Catalog – 420-3,680 m3/hr (250-2,165 scfm)

Adsorption – premium efficiency

Heat of Compression Dryers

Energy efficiency

HOC at work saving you energy

Flexibility to accommodate your application

Reliability you can count on

Superior features, solid dependability

Full-featured controller comes standard

How smart control works

Why smart control

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