IONTECH
®
IT-DS EDI Modules
3.4.1 Electrical Precautions
Do not run AC and DC wiring within the same conduit. This may cause
interference and lead to malfunctions.
Disconnect power before opening any enclosure and follow acceptable
Lockout/Tagout procedures when working on the system.
All wiring done in the field must conform to local electrical codes. Consult your
local service provider if there is a conflict between the instructions in the
manual and the local codes.
Loose wire connections can cause electrical arcing and must be avoided.
Ensure that all terminal connections are properly tightened.
3.4.2 Electrical Connections
Run conduit and wires from the DC power supply to the terminal strip inside the anode or cathode
junction box. (see drawing in Appendix B). There should be one lead for the anode (+), one lead
for the cathode (-), and one for the ground (see Figure 2-2). Insure the DC wiring is correctly
connected to the DC power supply and meets local electrical code.
Power co
2
nnections to the module junction box should be made with 12AWG
Power connections from the modules should be connected to a suitable power supply capable of
meeting the DC power requirements of the module.
3.4.3 Determine Operating DC Current Prior to Startup
Test the IT-DS feed water quality by running the RO system / EDI feed water to drain and testing
with the following individual test kits:
Table 3-2 Feed water test kits
Analyte Hach Model Smallest increment
CO
2
CA-23（#143601）
1.25 mg/L
Cl
2
CN-70（#1454200）
0.02 mg/L
Hardness
HA-71A（#145201）
1 mg/L
Silica
SI-7（#2255000）
0.02 mg/L
Set the electrical current at the specific setting required to meet product water quality
specifications as estimated below.
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