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DUSTHOG PNP Series
3.3 Mechanical Installation
Use adequate safety measures when lifting and assembling any heavy components.
Consult your plant safety personnel for recommendations.
Connect lifting slings and spreader bars to lifting lugs with clevis pins. Use spreader bars to distribute
the load evenly. Location must be clear of all obstructions, such as utility lines or roof overhangs.
All units are supplied with a dust drawer base that must be secured to the floor using the base plate
mounting holes. An inlet box will be factory installed. The inlet is a round collar mounted on the vertical
surface of the rear inlet box. Be sure to use a proper sealant or gasket when installing any inlet collars
to prevent leaks. Inlet collars are mounted with 1/4-20 hardware utilizing the existing nut inserts in the
top of the inlet box.
All other transitions, ducting or plenums required for unit set-up and operation are customer sourced.
Unit should ALWAYS be secured to the floor when installed in this configuration.
3.3.1 Compressed Air Connection
Shut off, lock out, and slowly release the pressure in the compressed air piping and/or the PNP
compressed air manifold, and verify that the pressure has been released by observing a pressure
gauge, known to be in good working order.
Liquid water and oil must not be allowed to enter the compressed air manifold on the PNP unit from
the factory compressed air line. To ensure a liquid-free compressed air supply, Parker recommends
installing a point of use coalescing filter with an automatic drain port prior to the unit.
Consult your local Parker representative for information regarding coalescing filters
The PNP unit has a 1" FNPT compressed air connection on the rear of the unit. Clean, dry compressed
air at an inlet pressure of 90-110 PSIG (6.2-7.2 barg) is required to operate the pulse cleaning system.
A shut-off/lock-out valve, a pressure gauge, and a pressure regulator, if needed, should be installed
downstream of the coalescing filter, and connected to the compressed air connection on the rear of the
PNP unit.
3.3.2 Fire Suppression System
Fire suppression connections are built into the dirty and clean air cabinets. They will come plugged
from the factory and are meant to serve as a means for the customer to add a fire suppression system
if they deem it necessary. See Figure 1B for basic locations and size of connections. Consult applicable
fire codes for proper selection, sizing and operation of a fire suppression system.
3.3.3 Inlet Ducting Connection System
The connection of the ducting into the unit, by means of the inlet box that will come installed on most
units, is recommended to be done by an experienced installer. All components connecting to the inlet
box are to be sourced by the customer.
Be sure to install the ducting in a manner that will still allow the removal of the electrical access panel
(shown in Figure 1B) so minimal access can be gained. For example, if a circuit breaker needs to be
switched or reset.
DANGER
!
CRUSH HAZARD
C A U T I O N
!
8
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