Parker DUSTHOG PNP, Owner'S Manual

12

DUSTHOG PNP Series

3.4.1 Electrical Supply Power

The main power supply is connected to the PNP unit through a 1˝ FNPT coupling located on the rear 
of the unit shown in Figure 1B. After feeding wires through the coupling, terminations are made on 
the main bus bar terminal for each phase and frame ground connection. The rear electrical panel also 
contains the unit circuit breakers and DC power supply for the controls components. Utilize Table 1 
for wire, fuse and disconnect sizing for your respective product model. A second plugged 1˝ FNPT 
coupling is also located on the rear of the cabinet for low optional voltage connections using the 
process control feature to automate operation. Ensure that the rear electrical panel cover is in place 
and secured prior to operating the unit. Refer to the electrical wiring diagrams in Table 2 for additional 
wiring information. 

Note:

 When making the main power connections to the unit, fan rotation check is not required.  

The blower will automatically turn in the correct direction.

Descripon of Wire Diagram 

Appendix

Transformer 575:480 

A1

One Blower & Controls 

A2

Two Blower & Controls 

A3

Three Blower & Controls 

A4

Four Blower & Controls 

A5

Remote Panel Controls 

A6

One Blower & Remote Controls 

A7

Two Blower & Remote Controls 

A8

Three Blower & Remote Controls 

A9

Four Blower & Remote Controls 

A10

TABLE 2

Wire Diagrams

3.4.2  Electrical Touchscreen Controls

The main control panel for the PNP unit is a touchscreen interface located integrally on the front of 
the unit or remotely in an auxiliary enclosure (refer to section 3.4.3) that operates the blower and filter 
pulse cleaning system. Both the touchscreen control panel and filter pulse cleaning valves are powered 
by 24V DC. Refer to Section 4 of this manual for operation of the touchscreen. All wiring in the 
touchscreen controls panel is pre-wired at the factory and there are no customer connections at this 
panel. The panel door should remain closed and locked during operation.

3.4.3 Remote Controls Panel

The PNP unit is available with a remote controls panel that allows touchscreen controls to be located 
within 100 ft. (30.5 m) from the PNP unit location. The controls are provided in a NEMA 4X enclosure 
for mounting. The remote display panel will come pre-wired with two cables, one is the 24 VDC power 
supply, along with control cables and the other is a communications cable that must be connected 
to the PNP unit upon installation. Note that these wires are low voltage and should not be run next to 
high voltage wires. These wires should be cut to final length at installation.