How to set the system type of an Enercept Meter

Issue

Replaced an old 3020 Enercept Meter with a spare 3020 Enercept Meter but isn't showing the correct readings.

Product Line
3020 Enercept Meter

Environment
Voltage Mode Setup

Resolution
The factory default for the meter is a system type 40, but the following options are valid:

20 = Single Phase, 2 Wire
21 = Single Phase, 3 Wire
30 = Three Phase Delta
40 = Three Phase Wye

Write one of these values to the Single Holding Register 36.

Reference the video in What is Modbus Tester and how do I use it? for information on how to write to registers.