Parker DUSTHOG PNP, Owner'S Manual

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DUSTHOG PNP Series

3.4.4 Process Control

The customer has the option to control the PNP ON-OFF operation with a dust/fume generating 
equipment or process. This will allow the operator to control the PNP with a “Dry-Contact” off another 
piece of equipment. Refer to the wiring diagrams in the appendix for wiring of this option and to 
Section 4 for process control set up on the touchscreen.

Wiring will be terminated to the terminal blocks located in the rear electrical panel in Figure 1B.  
When the machine dry contact is closed, the PNP blower will be on and when the contact is open,  
the PNP unit blower will shut down. 

Note: A relay coil cannot be connected to the PNP and will not work for this type of electrical circuit.

3.4.5  Step-Down Transformer Package

An auxiliary 575V step down transformer is an available option for the PNP. This transformer ships 
loose and requires field installation by a qualified individual. Refer to Appendix page A1 for additional 
details including primary and secondary transformer full load amps (FLA) for sizing fuses, electrical wire 
and main disconnect. 

Note:

 The transformer cannot be attached to the PNP, the PNP structure will not support the weight of 

this device.

4. Unit Operation

4.1 Start-Up

Before system start-up, verify that the installation is complete per Section 3 of this manual.  
The following are the basic steps to walk you through as you are starting up.

1.  Open the PNP filter access doors and verify that the filters are in place and properly sealed. 

2.  Open the dust drawer access door and verify that the dust drawer is in place.

3.  Close and latch all access doors and electrical enclosures on the dust collector.

4.  Ensure that the main power is connected and turned on.

5.  Ensure that the compressed air is connected and turned on.

6.  Follow Section 4.3 for setting changes on the touchscreen to target the desired airflow volume.  

Adjust the blower speed to the RPM % that will provide the targeted airflow. For assistance in 
determining the target RPM, contact your local representative. When using the Auto Flow option, 
follow the Auto Flow Settings in Section 4.

7.  Using the customer service menu in the touchscreen, you can test each pulse valve to verify 

operation. Refer to Section 4 for this procedure. Adjust any of the optional pulse cleaning settings 
such as cleaning mode or downtime cleaning settings as necessary in the customer service menu.

8.  Press the blower power button on the Home screen to begin operation. Note that if the dust collector 

is connected to a process, other equipment will need to be engaged as well.

9.  Verify performance of the dust collection system by measuring airflow or evaluating capture at each 

collection point. It is recommended to record baseline performance parameters so in case of an upset 
condition or system changes, the system can be reset. The recorded data should include the static 
pressure at each collection hood, system amperage draw, and filter pressure drop at a minimum and 
any other key pieces of data critical to your process.