Document Part # 026-4703 Rev 8 10-JUN-2009
Page 2 of 18
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Installation Instructions: Control Link ACC Anti-Condensate Controller System
technical bulletin
When Control Link ACC controllers are networked
together via MODBUS, a single dewpoint sensor con-
nected to one Control Link ACC may be shared by
multiple Control Link ACC controllers.
Door Temperature Sensor (P/N 201-6008)
In addition to the indoor air dewpoint, the Control
Link ACC also factors in the value of the temperature
of the case door frame using an externally mounted
temperature sensor. This small thermistor mounts to
the coldest surface of the door frame.
The door temperature sensor is supplied with an
8-foot two-wire cable with Molex connector, which
plugs into the Control Link ACC.
Mounting the Control Link ACC
The Control Link ACC enclosure is
designed to be mounted in a case mul-
lion, but may also be mounted in the
raceway or in a metal electrical enclosure
on the top of the case.
Figure 4
shows
examples of where the Control Link
ACC may be mounted.
Use the two mounting tabs at the top and
bottom of the enclosure to screw the
enclosure to the case wall, raceway, or
enclosure.
The tab at the top end of the Control Link ACC (the end nearest the CPC logo) must be
securely
mounted against a large heat-conductive surface
. This tab has a metal backing which acts as a
heat sink, dissipating heat from the Triac that controls the heater.
The metal tab must be
mounted against a conductive metal surface of at least 64 square inches
so heat can be con-
ducted out of the controller. Failure to secure the top tab against the case mullion may cause con-
troller overheating and shutdown.
Use 9/64” drill holes for mounting, and secure the Control Link ACC to the metal surface using
#8-32 thread trilobular thread forming screws, Taptite II or equivalent (Ref. Ty-Bolts
#SCHWSZ08043-TR). Mounting screws are not included with the Control Link ACC.
Figure 3 - Dewpoint Sensor (6111)
(Discontinued)
Figure 4 - Control Link ACC Mounting
ACC
ACC
ACC
