CVHE-SB-32A 37
Description of UCP2 Options
1. Tracer Communications Interface Module (Com 3 Module)
This option must be ordered if the chiller is to communicate over a serial communication link to a
TRACER 100.
2. Tracer Communications Interface Module (Com 4 Module)
This option must be ordered if the chiller is to communicate over a serial communication link to a
Tracer Summit.
3. Remote Clear Language Display Module
Enables the UCP2 to communicate serially with the remote CLD.
The remote CLD panel (COPT:RCPL) communicates serially with 1-4 UCP2-equipped chillers
that have the optional remote CLD. The local CLD Stop command function has precedence over
the remote function. The Custom Report and display language at the local CLD and remote CLD
are independent.
4. Options Module
The Options module is required to implement any/all of the following control options. Some
require additional sensor/transducers.
(a)Chilled water setpoint by external/remote source. Allows a remote source to set the chilled
water setpoint via 4-20 mA or 2-10 VDC signal. The range is 0°F to 65°F.
(b)Current limit setpoint by external source. Allows a remote source to set the current limit
setpoint via a 4-20 mA or 2-10 VDC SIGNAL. Range is 40% to 120%.
(c)Compressor percent (%) RLA output Allows a remote system to receive a 2-10 VDC signal
proportional to the chillers % RLA. Range is 0% TO 120%.
(d)Head relief request output. Allows a remote system to receive a binary signal for use with
compressor surge protection and condenser limit by requesting lower entering cond. water
temp. This option requires an additional transducer on the condenser.
(e)Maximum capacity output. Allows a remote system to receive a binary signal indicating the
chiller is at maximum capacity.
(f) Heat recovery/auxiliary condenser entering and leaving water temperatures. This option
includes the Options module. Allows UCP2 to monitor the entering and leaving heat
recovery or auxiliary cond. water temps which are displayed at the local CLD.
(g)Free cooling machine mode enable/disable and valve control. Allows a remote source to
re-enable/disable the chillers free cooling.
5. Printer Interface Module
This option must be ordered if the UCP2 is to have a direct connect serial printer. The printer and
cable must be ordered separately. This option includes ASHRAE Guideline 3 Report.
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