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Operation

 

CAUTION!

 

NEVER TOUCH BRUSHES WHILE OPERATING - SHOCK MAY OCCUR

Once powered, the unit initiates an internal check of all systems. After initializing the display will blink between 
“ON”, “GPS”, and the number of days the unit has been powered. If there is a fault, “FALT” will be displayed.

Cleaning Cycle

The GPS-DM48-AC comes with a factory preset cleaning cycle designed to 
clean the emitters every 3 days. The cleaning process can be activated by 
pressing the test button labeled “Cleaning Cycle Test” below the display. See 

FIGURE 1

. During the cleaning process “CLEA” will be displayed. To access the 

test button, remove the clear faceplate by using a Phillips head screwdriver 
to remove the mounting screws. Take care with the screws and gasket.

Change Cleaning Cycle Frequency

Press the test button so the display reads “CLEA.” Hold the test button down 
for 5 seconds until the current cleaning frequency is shown on the display. 
Repeatedly  press  the  test  button  until  the  desired  cleaning  frequency  is 
shown. The choices are 1, 3, 5, 10, 15 or 20 days. The factory preset is suffi-
cient for most applications.

Safety Instructions:

CAUTION:  This  product  shall  not  be  installed  behind  a  suspended  floor/
ceiling or a structural wall, ceiling, or floor.
 

CAUTION: This product is suitable for mounting to duct of metallic construction only. Installation must be such that the 
structural integrity of the ducting is not compromised.

Figure 1

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Summary of Contents for DM48-AC

Page 1: ...Installation Operation Maintenance Manual GPS DM48 AC NOTICE This product is to be used only as directed Read entire manual before use Do not use unless properly installed ...

Page 2: ... out NOTE Use Temperature Maximum Ambient temperature in which unit shall be used 140 degree F 60 C Mechanical Installation 1 Ensure power to the HVAC equipment and the GPS DM48 AC has been disconnected 2 Find an appropriate location Verify the 8 inch depth clearance for the GPS DM48 AC 3 Cut a 4 inch round hole in the duct 4 Install the GPS DM48 AC so that airflow is passing by both emitters at t...

Page 3: ... remove the clear faceplate by using a Phillips head screwdriver to remove the mounting screws Take care with the screws and gasket Change Cleaning Cycle Frequency Press the test button so the display reads CLEA Hold the test button down for 5 seconds until the current cleaning frequency is shown on the display Repeatedly press the test button until the desired cleaning frequency is shown The choi...

Page 4: ...en screw Verify correct height after tightening screw 2 Wiper does not clean contact emitters a Adjust height of emitters loosen screw at base of emitter and gently push or pull emitter brush to a height where the wiper just contacts emitter brush Hold the emitter in place and tighten screw Verify correct height after tightening screw b If the emitter is worn to the point where there is no adjustm...

Page 5: ... NC 28208 980 279 5622 2021 Global Plasma Solutions Inc To access a list of applicable patents please visit www gpspatents com ZERO OZONE EMISSIONS MEASURED OZONE EMISSIONS FROM GPS DM48 AC DURING USE PHASE DOES NOT EXCEED 0 005 PPM AS TESTED BY UL 867 UL COM ECV ...

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