Plan and install · Section 4
Wire the wash signals
Connect Relay 1 and Relay 2 to the wash controller outputs.
Doza has two signal inputs, Relay 1 and Relay 2. Connect each one to the wash-controller output that turns on a chemical function. When that output turns on, Doza runs the pump you assign to it in Set up wash triggers.
Supported signal: 24–120 V, AC or DC
Each input works with any controller output from 24 to 120 V, AC or DC. Polarity doesn’t matter, and every Doza is wired the same way. The output supplies the voltage; Doza doesn’t power the input.
Turn off power first
Turn off the controller outputs and unplug Doza before wiring. Have a qualified electrician connect 120 V signals.
The signal cable
| Wire colors | Input |
|---|---|
| Brown and white | Relay 1 |
| Blue and black | Relay 2 |
Connect it
- At the controller’s terminal strip or a junction box, find the output for the first chemical function and its common (neutral or return).
- Connect the Relay 1 pair across them: one wire to the output, the other to the common.
- Connect the Relay 2 pair to a second function the same way, or insulate its ends if unused.
- Make the connections with lever connectors or terminals inside the cabinet or a closed junction box.
- Plug the signal cable into the device and label each pair with its wash function.
- Restore power, then set up wash triggers and test each function.
Connect at the controller output. Don’t splice into another dispenser’s internal wiring.