Overview
RTHC-SVD01B-EN 3
1-3 d. 1U4 - Clear Language Display
The Clear Language Display provides a display of chiller data and
access to the operator. This allows for control, setpoint adjustments
and chiller set-up information. All information is then stored in non-vol-
atile memory located in the Chiller module.
1-3 e. 1U5 - UCM Options Module
The Options module satisfies control or interface requirements for a
number of options. Options support either additions or modifications to
the chiller itself. Some of the features supported by the Options mod-
ule are Ice Making, External Chilled Water Setpoint and External Cur-
rent Limit Setpoint and Generic BAS interface.
1-3 f. 1U6 - TCI Comm 3 or TCI Comm 4
The TCI Comm 3 is a 1200 Baud isolated communications link to
Tracer.
The TCI Comm 4 is a 9600 Baud non-isolated communications link to
Tracer Summit.
1-3 g. 1U7 - Printer Interface
The Printer Interface module provides a preformatted chiller log output,
as specified by ASHRAE 3, to a serial printer. The Printer Interface can
be programmed through UCP2 to print a report from a command, at
the time of a diagnostic and/or on a periodic basis.
1-3 h. 4U1 - Adder Subtractor Module for Optional
Condenser Water Regulating valve.
This module is an additional controller required to operate the optional
water regulating valve. UCP2 does not have the software capabilities
to operate a water regulating valve; therefore an additional controller is
required to monitor the system pressure and adjust the position of the
valve accordingly. The 4U1 is not a part of UCP2. It is an external com-
ponent to UCP2 and thus there is no interface.
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