WQM-1 wiring calculator

Tap a connection on the board. Enter the run. It tells you if the wire fits the installer manual, and what to change if it does not.

Questions

Why 3 %?

A 24 V circuit has only 0.72 V of headroom at 3 %. Past that, pumps can stall or dose slow without ever tripping a fault.

Why can’t I land 10 AWG on the terminal?

The terminals take 18 to 12 AWG. Land heavier wire in a junction box and pigtail 12 AWG into the board.

Does this replace an electrician?

No. It covers the low-voltage and signal runs on the WQM-1. Line-voltage work is licensed work.