Ingersoll-Rand Nirvana 3250-8000, Operator'S Manual

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Nirvana Cycling Refrigerated Dryer Models 3250-8000
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8.1 LOCATING EQUIPMENT
The dryer should not be located in an area where the ambient
temperature is likely to exceed 113°F (45°C). The dryer should be
located where the ambient temperatures will not be less than 50°F (10°
C) unless equipped with provisions for low ambient operation. If loads
fluctuate significantly, then the dryer should be placed ahead of the
receiver and sufficient storage capacity downstream of the dryer should
then be available to prevent excessive air flow through the dryer.
The dryer must be located in an area that provides sufficient clearance
from walls and other adjoining equipment to allow easy access for
servicing and maintenance requirements. A minimum of three feet is
required to allow free air flow to the condenser inlet. Refer to the multiple
module refrigerated dryer GENERAL ARRANGEMENT drawing for
condenser air flow requirements.
A
NOTICE
Failure to comply to the above instructions may result in equipment
malfunction and will void warranty.
8.2 OFFLOADING / LIFTING THE DRYER
(NVC4000 - NVC19200 ONLY)
The headers are constructed with lifting lugs to enable the dryer to be
offloaded and moved. Figure 3 illustrates two methods of using the lifting
lugs for offloading or moving the dryer. For NVC3200 dryers, refer to the
NVC3200 Technical Manual for off-loading instructions.
A
WARNING
Prior to attempting to remove the dryer from the delivery vehicle, read
the following section in its entirety. Failure to do so may result in
damage to the dryer or personal injury.
A
WARNING
Refer to Engineering Specifications Sheet for estimated weight of dryer
prior to lifting.
To offload the dryer:
• Install lifting chains through the eyes in the lifting lugs on
headers.
• If using two-point lifting, use a spreader bar (not included)
as shown in Figure 3. Be sure that chains / slings do not
bear on sheet metal.
• Adjust chains as required to keep equipment level during
offloading.
• Carefully raise dryer from vehicle and locate according to
criteria described in Section 8.1.
• Securely dryer in place
8.0 INSTALLATION AND INITIAL START-UP
8.3 INSTALLATION OF AIR PIPING
Multiple module dryers are equipped with one blind flange on each of
the Inlet and Outlet Headers. Either side of the header can be used to
connect to the process air piping.
• Connect the inlet and outlet piping to the inlet and outlet headers
• Relocate, if needed, the blind flange on the inlet header to the
remaining flange of the inlet air header.
• Relocate, if needed, the blind flange on the inlet header to the
remaining flange of the outlet air header.
A
NOTICE
Insure that adequate piping supports are are in place to prevent
loading on the Inlet and Outlet Headers. Do not allow piping loads to
be exerted on dryer.
A
NOTICE
Verify that compressor vibration and vibration from any process air
equipment has been isolated from air system piping. Failure to do so
may damage dryer.
A
NOTICE
Verify that air flow pulsations, if present, are eliminated via surge tank,
receiver or pulsation dampener.
8.4 PIPING AND VALVES
Install piping, fittings and accessory items as indicated in Figure 4. For
bypass and isolating purposes, valves (A), (B), and (C) must be installed
(not furnished). In order to test and isolate each drain without
depressurizing the dryer, drain isolation valve (D), has been provided for
your convenience.
FIGURE 3 - LIFTING / OFFLOADING DIAGRAMS