Advanced Control Technologies CR334 (277VAC, 3 PHASE, A10 MULTI-FUNCTION COUPLER REPEATER) - Manual

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CR334 Installation Instructions
P/D 011904
ADVANCED CONTROL TECHNOLOGIES, INC.
Indianapolis, Indiana 46278
A10 PCC 277/480 VAC Coupler-Repeater
CR334
THE CR334 is a coupler-repeater designed to receive A10 or X10 Powerline Control Component
signals of 120 KHz from any phase of a 277 VAC, 50/60 Hz, 3-phase power distribution system and
retransmit them onto all three phases, when it is detected on one phase (as low as 25 millivolts peak
to peak) or SCC (Signal Carrying Conductor) lines (as low as 50 millivolts peak to peak). In doing
so, it effectively amplifies the signal for all connected phases, and also creates signal appropriate for
480V receivers. The CR334 is also capable of receiving and retransmitting Dim and Bright signals
nearly simultaneously, including preset dim. In addition to SCC connections, the CR334 has special
signal processing functions to better operate in complex coupling situations (described in detail
in the " Installation" section). Although designed for use on all 3 phases, it can be wired to just 1
or 2 phases, if desired. Its signal output will be greater than 5 volts peak to peak @ 5 ohms, on all
3 phases. Actual output is dependent on facility impedance. This unit is not intended for 120/240V,
120/240/208 high leg delta, or 120/208V, 3 phase systems.
BEFORE YOU BEGIN...
READ ALL INSTRUCTIONS
Make sure your installation will conform to all applicable electrical codes and requirements.
TEST FOR SIGNAL STRENGTH AND INTERFERENCE...
using the appropriate test equipment. It is necessary to test the installation in the actual operating
environment. The amount and types of line loads may reduce the signal strength and/or electrical
interference may degrade the signal. To insure a fully functional system, special coupling devices
may be required to allow signal to be distributed to all phases and zero-crossings in multi-phase and
multi-transformer power distribution systems.
IF YOU HAVE ANY QUESTIONS...
Consult your nearest Engineered System Center (ESC) for technical assistance. Other than fuses
there are no field repairable assemblies on this unit. Should service be required, please contact the
ESC from where it was purchased.