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Thank you for purchasing a GPS-DM48-AC™ air ionization system from Global Plasma Solutions.
Hardware Provided by GPS
Before you start, confirm the contents of your shipment. Each GPS-DM48-AC will consist of the following:
1. GPS-DM48-AC with weather tight clear cover and black mounting flange (preinstalled).
2. Weathertight conduit (preinstalled on unit).
3. Self-tapping sheet screws (4).
4. Expanding anchors with screws (4).
Hardware Required by Others
1. Electrical wiring, junction box, or receptacle to provide power to the GPS-DM48-AC.
2. Sealant to make duct watertight after installation, if required.
3. 4-inch hole saw or snips.
Installation Location
CAUTION: MAKE SURE POWER IS DISCONNECTED TO THE HVAC EQUIPMENT BEFORE INSTALLATION
GPS recommends mounting the GPS-DM48-AC downstream of the last filter in the HVAC system. Alternate mounting
locations are on the supply air duct or the return air duct after the filter. The duct must have a depth greater than 8
inches for the unit to operate properly. The weatherproof housing will allow mounting indoors or 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 the same time (like a football through
goalposts). The conduit and connection grommet should be pointed down or to the side. Secure to the duct
with provided screws. Do not rely on the face of the display screen as a method of aligning the product to the
proper orientation.
Wiring
1. Confirm the power is off prior to wiring. Follow all local and national electrical and building codes.
2. GPS recommends the GPS-DM48 be powered constantly and NOT switched with the system or blower.
3. The GPS-DM48-AC will self-adjust to voltages from 24VAC to 240VAC. Output and performance will not be
affected by choice of input voltage. Connect the power wires as follows:
Black 24 - 240VAC
White Neutral or L2
Green Ground
Brown Dry Contacts/BAS terminals
4. Wire in BAS terminals (optional). The GPS-DM48-AC is equipped with dry contacts that are normally open and
close when the GPS-DM48-AC is on and has no faults. The contacts are rated up to 250VAC and 1A.
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