Conext XW Pro Installation Guide

This section provides instructions for adding a second and third Conext XW Pro to your
installation. Complete the following installation steps only after you have already
connected the PDP to the first Conext XW Pro, as shown in Wiring the Conext XW Pro
with a PDP on page 50.
A system of three Conext XW Pro units can power loads of up to 20.4 kVA. To avoid
scenarios where any single unit can briefly bear the entire current drawn by the loads, an
external contactor or transfer switch is required. For further details of planning for larger
systems, refer to the Conext XW Pro Multi-unit Power System Design Guide (990-
91373).
Grounding DC
WARNING
UNGROUNDED EQUIPMENT
Equipment ground terminals must be reliably connected to ground by appropriately sized
grounding conductors. All installations must comply with national and local codes. Consult
local and national codes for specific grounding and bonding requirements.
Failure to follow these instructions can result in death, serious injury, or equipment
damage.
See "Grounding the DC System" on page50.
Installing a DC Positive Bus Bar
1. Remove the existing bus bar from the bottom terminal of the GJ250A 160 VDC, 3/8"
stud DC disconnect/breaker (pre-installed in the PDP).
2. Install a second and third GJ250A - DC rated breaker (included with each Connection
Kit for INV2 INV3 PDP) next to theexisting DC disconnect/breaker.
3. Install the DC positive bus bar included with the Connection Kit for INV2 INV3 PDP.
This DC positive bus bar supports up to three GJ250A - DC rated breakers.
4. Remove the appropriate knockouts from the Power Distribution Panel (PDP) lower
faceplate.
Note: Replace faceplates after AC and DC wiring is complete.
DC Wiring for a Triple-Inverter System
Note: One pair of battery cables is included with each Connection Kit for INV2 INV3
PDP and Power Distribution Panel (PDP).
1. Using the instructions provided in "Making DC Connections" on page53, make DC
connections from the Power Distribution Panel (PDP) to:
a. the first Conext XW Pro Inverter/Charger (INV1) and
b. the battery bank.
Wiring Conext XW Pro Installation Guide
990-91228A-01 This manual is intended for use by qualified personnel 82