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APS systems must be connected to a grounded, permanent wiring system. For most installations,
the negative battery conductor must be bonded to the grounding system at one (and only one)
point in the system. All installations must comply with national and local codes and ordinances.
When figuring the power requirements of your equipment, do not confuse “continuous” power
ratings with “peak” power ratings. Electric motors require more power to turn on (“peak power”)
than they require to run continuously. “Peak” power ratings are usually 2 to 5 times “Continuous”
ratings. Most electric motors require “peak power” only when they are first turned on. The electric
motors in equipment such as refrigerators and sump pumps, however, constantly turn on and off
according to demand. These motors require “peak power” at multiple, unpredictable times during
their operation.
You must use GFCI protection (user-supplied) on output circuits; use the Leviton Type 6599.
You must use branch circuit protection (user-supplied) on input circuits: 15 amp protection on the
APS1012UL and 40 amp protection on the APS2012UL.
Consult a qualified electrician and follow all applicable electrical codes and requirements.
HARDWIRE PROCEDURE
1. Remove screws and cover plate from your APS’s Hardwire AC electrical box. Remove the
knockout covers closest to the desired electrical source and to your equipment.
2. Attach .5 in. dia. conduits (user-supplied) to the knockouts and thread your wires through.
3. Connect the conduits with the ground bond connection supplied. (See Diagram 4, p. 35)
4. Connect the incoming ground wire to the GROUND IN (green & yellow) terminal.
5. Connect the outgoing ground wire to the GROUND OUT (green & yellow) terminal.
6. Connect the incoming hot wire to the HOT IN (brown) terminal.
7. Connect the incoming neutral wire to the NEUTRAL IN (blue) terminal.
8. Connect the outgoing hot wire to the HOT OUT (black) terminal.
9. Connect the outgoing neutral wire to the NEUTRAL OUT (white) terminal.
10.Tighten and affix strain reliefs. Replace cover plate and tighten screws.
AC Connection
Before AC connection, match the power requirements of your
equipment with the power output of your APS to avoid overload.
Hardwired Electrical Connections (All hardwire models)
(See Diagram 3, p. 36)
DC Ground Connection
Battery Connection
continued
200201192 UL-Listed APS Manual.qxd 5/17/02 12:41 PM Page 10