Magnum Energy AC Load Diversion Controller (ACLD-40) - Manual (Page 25)

©
2015 Sensata Technologies Page 18
Installation
2.8 Wiring the ACLD
The following steps are basic guidelines for installing and connecting wiring to and from the ACLD
controller. Refer to Figure 2-7 for visual guidance.
Note: The instructions below refer to the ACLD’s terminals using the attached label terminology.
Wiring the Inverter AC Output to the ACLD
1. Route wires from the inverter’s AC output (HOT 1 OUT, HOT 2 OUT and NEUTRAL) thru the
unused strain relief clamp on the inverter and into the ACLD (using an appropriate knockout).
2. Connect the HOT 1 OUT (black) wire from the inverter’s INV HOT 1 OUT terminal to the INV
OUT (HOT 1) terminal on the ACLD.
3. Connect the HOT 2 OUT (red) wire from the inverter’s INV HOT 2 OUT terminal to the INV OUT
(HOT 2) terminal on the ACLD.
4. Connect a NEUTRAL (white) from one of the inverter’s AC NEUTRAL terminals to one of the
NEUTRAL terminals on the ACLD.
Wiring from the ACLD to the Critical Loads Sub-panel (thru circuit protection)
1. On the ACLD terminal block, connect a black wire to the ELECTRIC PANEL (L1) terminal, a red
wire to ELECTRIC PANEL (L2) terminal, and a white wire to the unused NEUTRAL terminal.
2. Connect a wire (green or bare copper) to the GROUND busbar on the ACLD.
3. Route the ELECTRIC PANEL (L1) and ELECTRIC PANEL (L2), NEUTRAL, and GROUND wires
through an appropriate knockout on the ACLD to an enclosure with a dual-pole 30A branch-
rated circuit breaker (using minimum #10 AWG/5.3 mm 2 wire).
4. Connect the ELECTRIC PANEL (L1) and ELECTRIC PANEL (L2) wires to the line side of the dual-
pole 30A circuit breaker (one wire for each pole). See Section 2.4.4 for breaker information.
Info: Figures 2-6 and 2-7 show the ACLD wired through a MMP-30D Series enclosure.
The MMP-30D Series enclosures provide the required branch-rated 30-amp circuit
breaker. These enclosures also provide a full system Inverter Bypass Switch. This
simple item provides a convenient way to isolate the ACLD and inverter from the AC
loads without any re-wiring, which could save you hours of downtime—if you ever
need to service your load controller or inverter.
5. From the load side of the dual-pole 30A circuit breaker, connect the ELECTRIC PANEL (L1)
and ELECTRIC PANEL (L2) wires and route (along with the NEUTRAL and GROUND wire on the
ACLD) to the AC electrical sub-panel.
Wiring to the Diversion Load
1. On the ACLD terminal block, connect a black wire to the PRIMARY LOAD (L1) terminal and a
red wire to PRIMARY LOAD (L2) terminal.
2. Connect a wire (green or bare copper) to the GROUND busbar on the ACLD.
3. Route the wires [PRIMARY LOAD (L1), PRIMARY LOAD (L2) and GROUND] through an appropriate
knockout on the ACLD to a diversion load. See Section 2.4.4 for diversion load information.
Info: If connecting a secondary diversion load, use the same three steps listed above,
except connect a black wire to the SECONDARY LOAD (L1) terminal, a red wire to
SECONDARY LOAD (L2) terminal, and connect an additional GROUND wire.
Wiring Inspection
1. Verify all wire runs are secured. If using strain relief clamps on the knockouts, tighten the
strain relief clamp securely on the wires. Always leave a little extra slack in the wiring.
2. Verify that all connections are correct and secure, all the ACLD terminal screws are torqued to
a maximum tightening torque of 16 lbf-in (2.0 N-m), and the ground screws are torqued based
on Table 2-1.
3. Replace the ACLD wiring access cover and any other cover you removed to access wiring
terminals during this installation (i.e., on the electrical/distribution sub-panel, etc.).