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Technical information

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UGH024/1103 Portable Chiller
Menus on the Controller:
The controller has information available in 5 areas. Four of
them are user accessible. These are: the Main Menu, the
Setpoint Menu, the Configuration menu and the Alarm Page.
The service page also has additional parameters that are
accessible in cases of need.
Relaying Control information via three modes:
The controller relays information via three modes.
1. The status lights indicate the state of the machine and its
control components. In the chiller these are Pump, Hot gas
valve, and Compressor.
2. The digital indication of the process in temperatures and
times.
3. The alpha abbreviation of the process parameters to isolate
the variables and the alarms from each other.
Main Menu
The main menu is the normal operating page. The controller
always defaults to this page after a certain amount of inactivi-
ty (buttons being pushed). The first screen is the process vari-
able. This is a user selectable parameter and could be the to
process, from process or an average temperature. The rest of
the variables are accessed in a circular queue using only the
up and down arrow keys.
The parameters include:
Process Variable- in the units selected on the Configuration
page. This parameter has its decimal fixed to whole numbers
only.
Machine State - For the Chiller this is on/off.
The To Process temperature - in units selected as above. This
parameter has its decimal fixed at 0.1º
The From Process temperature - in units selected above. This
parameter has its decimal fixed at 0.1º
There are two additional temperature indicators available for the
chiller and must be purchased separately. If installed they will
indicate only the temperature of the media to which they are
exposed. These were intended to display condensing media tem-
perature to the chiller operator however they could display any
temperature in the operating range of 0-250ºF. These tempera-
ture displays are also shown as whole numbers. If these are
not connected; is displayed.
GENERAL
TIC
CONTROL
FEATURES
OPERATION
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