Document Part # 026-4703 Rev 8 10-JUN-2009
Page 3 of 18
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Installation Instructions: Control Link ACC Anti-Condensate Controller System
technical bulletin
Wiring The Control Link ACC
Power And Heater Element Wiring
The four leads on the
top end
of the Control Link ACC
enclosure are where the connections to supply voltage
and the case door heater element(s) are made.
Connect the WHITE wire to the NEUTRAL side, and the
BLACK wire to the HOT side of 120-230VAC, 50/60Hz
line voltage.
The RED lead carries supply voltage when the door
heater Triac relay is ON (closed). Connect the RED and
WHITE leads to the case door heater elements. All
heater elements in the door frame and all doors of that
frame should be connected
in parallel
to the Control
Link ACC.
Connect the GREEN lead on the controller to ground.
Ratings and Current Protection
The Control Link ACC’s Triac is fused for 20A, 250V on the heater circuit, with a separate 1A
fuse on the control components so that communication can continue even if the Triac’s fuse
blows. Neither fuse is field-replaceable; if a fuse on the Control Link ACC blows, the controller
should be replaced. The maximum heater load is UL approved up to 13A.
WARNING! DO NOT CONNECT THE
POWER TO THE DEWPOINT SENSOR
LEADS AT THE BOTTOM OF THE ENCLO-
SURE. The small-gauge leads at the bottom
are the same colors, but they are for the dewpoint sen-
sor. Connecting power to these leads will damage the
board.
Figure 5 - Power/Heater Wiring
ACC
