Alpha Technologies AMP24 HP - Manual (Page 46)

Doc. #: 0260011-J0 Rev B 44
5.7 Commissioning the System for the First Time
Tools Required
The following tools are required to commission the AMPS24 HP system for the first time:
• Medium flat screwdriver with approximately 3/8" (5 mm) blade width
• True RMS digital multimeter
• Computer with Ethernet port and Internet Explorer 7 or later
• Crossover Ethernet cable if a computer is directly connected to the CXCU controller
• Straight through Ethernet cable if the network connections are made through a router or hub
• Torque wrench
• 3/8" hex driver
Before you begin:
1. Verify that the AMPS24 HP system is mechanically secured to the rack or other structure.
2. Verify that the clearances around the AMPS24 system meet the minimum requirements (see 4.1).
3. Ohm-test the AC and DC bus bars to check for any shorts caused by cut wires, loose bolts,
washers and other conductive material. If possible do Megger testing.
4. Verify that the AMPS24 HP system is correctly and securely grounded to the building grounding
system.
5. Verify that the AMPS24 HP system is correctly and securely connected to the utility and batteries:
a. For the battery connections, follow the manufacturer's recommendations and record the
torques.
b. For the AC connections, torque 2/0 to 14 AWG wire to 120 in-lbs (14 N-m).
c. Triple check the polarity of the battery connections.
6. If this is a 3i+1R shelf system that includes rectifiers for charging, verify that all rectifier modules
are removed.
7. Verify that all breakers at the external load distribution box are switched OFF.
8. Refer to "Figure 1 — AMPS24 HP System Components" and verify that the following breakers are
OFF
• AC Input circuit breaker
• Inverter AC Output circuit breaker
• DC breakers
9. Place the internal maintenance bypass switch (MBS) in INVERTER mode.
10. If a Generator is installed, verify that the transfer switch has a minimum 1 second switching delay
or that the transfer is always in phase (+/- 30 deg). (After the installation is complete, see 10.2.3
to set the configuration parameter for Walk-in mode.)
WARNING!
The AMPS24 HP must have no power (utility breaker OFF and locked out) and no modules
installed prior to start-up.