Advertisement
CAUTION
Damage to Starter
components!
To avoid damage remove debris
inside the starter panel. Failure
to do so may cause an electrical
short that seriously damages
the starter components.
1. If the starter enclosure must
be cut to provide electrical
access, exercise care to
prevent debris from falling
inside the enclosure.
2. Use only shielded twisted pair
for the interprocessor
communication (IPC) circuit
between the starter and the
UCP on remote mounted
starters. Recommended wire
is Beldon Type 8760, 18 AWG
for runs up to 1000 feet.
Note: The polarity of the IPC
wire pair is critical for proper
operation.
62
Installation:
Electrical
3. Separate low-voltage (less
than 30V) wiring from the
115V wiring by running each
in its own conduit.
4. As you route the IPC circuit
out of the starter enclosure,
make sure that it is at least 6"
from all wires carrying a
higher voltage.
5. For UCP IPC shielded twisted
pair wiring, the shield should
be grounded on one end only
at UCP at 1X1-G. The other
end should be unterminated
and taped back on the cable
sheath to prevent any contact
between shield and ground.
6. Oil Pump Interlock - All
starters must provide an
interlock (N.O.) contact with
the chiller oil pump connected
to the UCP at Terminals 1A-J2-
7 and 1A9-J2-9.
The purpose of this interlock is
to power the oil pump on the
chiller in the event that a starter
failure, such as welded contacts,
keeps the chiller motor running
after the controller interrupts the
run signal.
CAUTION
Electrical Noise!
Maintain at least 6 inches
between low-voltage (<30V) and
high voltage circuits. Failure to
do so could result in electrical
noise that may distort the
signals carried by the low-
voltage wiring, including the
IPC.
CVGF-SVN02B-E4
Hide quick links:
Advertisement
