Cod. 710.0138.72.00 Rev.10
– 02.2022
© Copyright 2022 Gardner Denver - All rights reserved
2
– 11
The effects of corrosion, erosion and normal wear and tear are specifically excluded. Performance warranties are limited to those
specifically stated within the Company's proposal. Unless responsibility for meeting such performance warranties are limited to specified
tests, the Company's obligation shall be to correct in the manner and for the period of time provided above.
THE COMPANY MAKES NO OTHER WARRANTY OR REPRESENTATION OF ANY KIND WHATSOEVER, EXPRESSED OR
IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, ARE HERBY DISCLAIMED.
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 Gardner Denver 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
Gardner Denver 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 rec overing
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.
This dryer is designed to work only with compressed air. For a different use, please contact your
distributor Gardner Denver.
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, 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.
