PNG3XX INSTALLATION MANUAL
NAM-PNG3xx-TM-EN-C.doc
The info rmation contained in this d ocu ment is the p roperty of Auto matic
Syste ms and is co nfidentia l. The re cipient shall refrain fro m using it fo r a ny
purpose other than the use of the pro ducts or the execu tion of the pro ject to
which it refers and fro m co mmunicating it to third partie s without written p rio r
agree ment of Auto matic Syste ms. Do cu ment sub ject to change without notice.
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2.5 Electrical Connections
Most startup difficulties are the result of incorrect wiring
. Every effort must be taken to ensure that the
wiring is installed as instructed. Damage or faulty operation may result if the actual installation does not
conform to the following.
2.5.1 Power Requirements
The PNG model “UL PNG38x and 39x” are suitable for use on any cable UL listed with 600 volt insulation
and for 15 amp service. This includes THHN, TFFN as well BX type armored cable (as permitted by local
code).
Customer Terminations are: L (line), N (neutral), GND (ground) and SHD (shield).
•
L -
Voltage: 110 - 120 volts AC @ 60 Hz
•
N -
Neutral - Must be connected to the Neutral buss of a distribution panel. In special installations,
where feeding directly from a step down transformer (delta-wye type) the center point ground of a
wye transformer should be used.
•
GND -
The Equipment Ground must be connected to the building ground. Ground impedance must
conform to the requirements of national and local industrial safety regulations and all electrical
codes. The integrity of all ground connections should be periodically checked for safety.
•
SHD = SHIELD -
The shield is a ground that isolates inner conductors from electrical noise and must
be connected to a solid ground. Neither the Neutral conductor nor conduit may be used for shield
grounding. It should be tied directly to the ground wire of the power feed.
Please make sure that all grounds are made as per good electrical grounding techniques and
all ties into the same electrical ground. Multiple ground wires are not recommended.
Noise in the building’s power or bad ground can cause intermittent and erratic operation of
the PNG.
The electrical connections must be made in accordance with the following electrical diagrams:
•
PNG-EL-01-EN-D
•
082703-E18-EN-F
All of these drawings are supplied with the equipment (also included in this manual).
A
S ALWAYS WHEN PERFORMING ANY ELECTRIC WORK
-
Make sure that the
power supply cables are not live.