ingersollrandproducts.com 3
2.0 INTRODUCTION
The Ingersoll Rand Nirvana Cycling refrigerated air dryer
removes moisture, oil vapor, and other contaminants from
compressed air. These contaminants are detrimental to
pneumatically operated appliances, controls, instruments,
machinery and tools. This is accomplished by cooling the air
with a refrigeration unit to a temperature at which moisture
in the air is condensed and separated from the airstream.
The temperature the air is cooled to, normally between 36
and 40°F, is known as dew point. 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.
3.0 WARRANTY
The Company warrants that the equipment manufactured
by it and delivered hereunder will be free of defects in
material and workmanship for a period of twelve months
from the date of placing the Equipment in operation or
eighteen months from the date of shipment from the
factory, whichever shall rst occur. The Purchaser shall be
obligated to promptly report any failure to conform to
this warranty, in writing to the Company in said period,
whereupon the Company shall, at its option, correct such
nonconformity, by suitable repair to such equipment
or, furnish a replacement part F.O.B. point of shipment,
provided the Purchaser has stored, installed, maintained and
operated such Equipment in accordance with good industry
practices and has complied with specic recommendations
of the Company. Accessories or equipment furnished by
the Company, but manufactured by others, shall carry
whatever warranty the manufacturers have conveyed to the
Company and which can be passed on to the Purchaser. The
Company shall not be liable for any repairs, replacements,
or adjustments to the Equipment or any costs of labor
performed by the Purchaser or others without Company’s
prior written approval.
The eects of corrosion, erosion and normal wear and tear
are specically excluded. Performance warranties are limited
to those specically stated within the Company’s proposal.
Unless responsibility for meeting such performance
warranties are limited to specied 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 fulllment 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 rst 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 prec-
edence over this warranty.
4.0 REFRIGERATED DRYER NOMENCLATURE
DRYER NOMINAL*
FLOW
(Nm/hr)
NIRVANA
CYCLING
HIGH
PRESSURE
CONDENSER
TYPE
POWER RATING
D 4290
5635
7055
NC HP A = AIR
W = WATER
4 = 460-3-60
6 = 575-3-60
7 = 380-3-50
0 = NEMA 1
H = NEMA 4
* Nominal Flows indicated are for 100°F inlet temperature, 100°F ambient temperature and 580 psig compressed air pressure
120.26A D4290NCHPW400F Installation Operation and Maintenance Manual
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General