Ingersoll-Rand D108IN-A, Operator'S Manual

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Cod. 710.0138.45.00 Rev04 – 02.2019
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Correction by the Company of nonconformities whether patent or latent, in the manner and for the period of time provided
above, shall constitute fulfillment of all liabilities of the Company for such nonconformities whether based on contract, warranty
negligence, indemnity, strict liability or otherwise with respect to or arising out of such Equipment.
The Purchaser shall not operate Equipment which is considered to be defective, without first notifying the Company in writing
of its intention to do so. Any such use of Equipment will be at Purchaser's sole risk and liability.
Note that this is Ingersoll Rand standard warranty. Any warranty in force at the time of purchase of the equipment or
negotiated as part of the purchase order may take precedence over this warranty.
1. GENERAL INFORMATION
1.1 FUNCTIONAL DESCRIPTION
Ingersoll Rand refrigerated air dryers remove moisture from compressed air. Moisture is detrimental to pneumatically
operated appliances, controls, instruments, machinery and tools.
Compressed air enters the patented aluminum heat exchanger where it is cooled down to the dew point temperature in two
different stages: In the first air/air sector compressed inlet air is cooled thanks to the colder compressed air coming out
counterflow from the condensate separator. In the second refrigerant / air sector, compressed air temperature is further lowered
to the dew point temperature. During this two stages almost all the oil and water vapours contained in compressed air are
condensed to liquid and successively be separated from the compressed air in the condensate separator and drained out by the
automatic drain. At this point the obtained cold air re-enters counterflow the initial air / air exchanger and it is reheated by the
inlet hot air with the consequence of energy recovering and also reduction of the relative humidity contained in the outflowing air.
This dryer can be easily installed into various pneumatic systems in which dry air is required or desired. Please refer to
Principles of Operation for complete operating details.
The dryer comes provided with all the control, safety and adjustment devices, therefore no auxiliary devices are
needed.
A system overload not exceeding the maximum operative limits can worsen the operational performance of the dryer
(high dew point), but it will not affect its safety.
The electric diagram (attachment B) shows the minimum protection degree IP 42.
Improper grounding can result in electrical shock and can cause severe injury or death.
This product must be connected to a grounded, metallic, permanent wiring system or an equipment-grounding
terminal or lead on the product.
All grounding must be performed by a qualified electrician and comply with national and local electrical codes.
In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for
the electric current.
Ground must be established with a bare grounding wire sized according to the voltage and minimum branch circuit
requirements.
Ensure good bare metal contact at all grounding connection points, and ensure all connections are clean and tight.
Check grounding connections after initial installation and periodically thereafter to ensure good contact and
continuity has been maintained.
Check with a qualified electrician or service technician if the grounding instructions are not completely understood, or
if in doubt as to whether the product is properly grounded.
1.2 USE OF THE MACHINE IN SAFE CONDITIONS
This system has been designed and manufactured in compliance with the European safety directive in force and
UL/ULC, therefore any installation, use and maintenance operations must be performed respecting the instructions
contained in this manual.
Because an air dryer is pressurized and contains rotating parts, the same precautions should be observed as with any
piece of machinery of this type where carelessness in operation or maintenance could be hazardous to personnel. In
addition to obvious safety rules that should be followed with this type of machinery, safety precautions as listed below
must be observed.
1. Only qualified personnel shall be permitted to adjust, perform maintenance or repair this air dryer.
2. Read all instructions completely before operating unit.
3. Pull main electrical disconnect switch and disconnect any separate control lines, if used, before
attempting to work or perform maintenance on the unit.
4. Do not attempt to service any part while machine is in an operational mode.
5. Do not attempt to remove any parts without first relieving the entire air system of pressure.
6. Do not attempt to remove any part of the refrigeration system without removing and containing
refrigerant in accordance with the EPA and local regulations.
7. Do not operate the dryer at pressures in excess of its rating.
8. Do not operate the dryer without guards, shields and screen in place.
9. Inspect unit daily to observe and correct any unsafe operating conditions.
Cod. 710.0138.45.00 Rev04 – 02.2019
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2. INSTALLATION
2.1 ACCEPTANCE, UNPACKING AND HANDLING
Upon receiving your Ingersoll Rand air dryer, please inspect the unit closely. If rough handling is detected, please note it
on your delivery receipt, especially if the dryer will not be uncrated immediately. Obtaining the delivery person's signed
agreement to any noted damages will facilitate any insurance claims by the customer.
It is mandatory to keep the dryer always in vertical position, as indicated by the symbols present on the packaging. For
handling, use devices having sufficient capacity for the weight of the machine.
Remove the packaging after having positioned the dryer in the installation site. Dispose the various packaging materials in
compliance with the relevant rules locally in force.
If not in use, the dryer can be stored in its packaging in a dust free and protected site between 32°F (0°C) and 120 °F (50
°C), and a specific humidity not exceeding 90 %. Should the stocking time exceed 12 months, please contact your local
Ingersoll Rand authorized distributor.
Under no circumstances should any person attempt to lift heavy objects without proper lifting equipment (i.e., crane, hoist,
slings or fork truck). Lifting any unit without proper lifting equipment, may cause serious injury. Use fork lift channels
where provided.
2.2 INSTALLATION SITE
While preparing a proper site for the installation of the dryer, please take into account the following
requirements
The machine must be protected from atmospheric agents and not directly exposed to sun light.
A seating base flat and capable to hold the weight of the machine.
Ambient temperature complying with the nominal data of the dryer.
The dryer should be located in a clean area, without forced air draft that can affect the fan control
system.
Make sure to leave sufficient clearance (20 inches, 500 mm) around the dryer in order to allow an
adequate cooling of the machine and for maintenance and/or control operations.
The incoming air must be free from smoke or flammable vapours which could lead to explosion or fire risks.
2.3 INSTALLATION
Before attempting any installation operation, make sure that
No parts of the air system are under pressure.
No parts of the system are electrically powered.
Tubing to be connected to the dryer are free of impurities.
All interconnecting piping has been tightened.
After having verified the points listed above, you can proceed to the installation of the machine.
1. Connect the dryer to the compressed air lines. If not already existing, we suggest to install a by-pass
allowing to isolate the machine from the plant, thus to facilitate eventual maintenance operations.
2. Perform the electrical connection in accordance with any local laws and regulations after reviewing
the dryer electrical specifications and wiring diagram.
3. Check the condensate drainage assembly, and connect the drain flexible hose to the draining line,
keeping in mind that the condensate separated by the dryer may contain oil, therefore, in order
to dispose of it in compliance with the local rules in force, we suggest installing a water-oil
separator having adequate capacity.
4. Power the dryer after having checked that the nominal voltage and line frequency are constant and
matching the nominal values of the machine. The user must provide the installation with an
adequate line protection and a ground terminal complying with the electrical rules locally in
force.
In order to optimise the use of the dryer, we suggest to place it in such a way that all the control instruments
of the machine will result easily visible.
A suitably sized prefilter must be installed before the dryer. Failure to install and maintain a proper
prefilter will void the dryer warranty. The rating for this filter must be at least 10 micron.