Trane PRGD series, Installation, Operation And Maintenance Manual

Page: 24 / 40

24 PRGD-SVX01F-EN
• R Re effrriig ge erra attiio on n C Ciirrccu uiitt O On n.. Appears if the purge
condensing unit/compressor is operating.
• R Re effrriig ge erra attiio on n C Ciirrccu uiitt IId dlle e.. Appears if the purge
condensing unit/compressor is not operating.
• P Pu um mp piin ng g O Ou utt.. Appears if the purge refrigeration
circuit is On and pump-out has been initiated by the
purge unit controls.
• E Ex xh ha au usstt C Ciirrccu uiitt C Ch he ecckk.. Appears if a pump-out has
been initiated by an operator.
• P Pu um mp po ou utt IIn nh hiib biitte ed d.. Appears if the purge
refrigeration circuit is On but pump-out has been
inhibited by a low condenser saturation
temperature.
• D Da aiilly y P Pu um mp po ou utt L Liim miitt D Diissa ab blle ed d.. Appears if the
purge refrigeration circuit is On but the daily pump-
out limit has been disabled.
• R Re eg ge en ne erra attiin ng g.. Appears if the purge carbon system
is in its regeneration mode. Pump-out is not
allowed in this submode.
• A Alla arrm m––C Ch he ecckk D Diia ag gn no ossttiiccss.. Appears if a new
diagnostic occurs.
• P Pu urrg ge e D Diia ag g S Sh hu uttd do ow wn n.. Appears if the purge
system has shut down in response to a latching
diagnostic.
• R Re eg ge en n D Diissa ab blle ed d.. Appears if carbon regeneration is
not allowed.
Settings
The Tracer® AdaptiView™ display enables you to
manually select operating modes and setpoints that are
appropriate for a specific chiller application. The
Settings screen menu contains two buttons that
provide access to purge-related settings:
• Purge Settings
• Manual Control Settings
Purge Settings
The following purge settings are available:
• P Pu urrg ge e M Mo od de e.. Use it to set the purge operating
mode.
• D Da aiilly y P Pu um mp po ou utt L Liim miitt.. Use it to set the allowable
amount of daily pump-out time. The range is from 1
to 50 minutes; the factory default is 10 minutes.
• D Diissa ab blle e D Da aiilly y P Pu um mp po ou utt L Liim miitt.. Use it to disable
alarms for a specified time that are associated with
exceeding the daily pumpout limit. This is useful
when large amounts of purging are needed
following chiller servicing or operator error. The
range is from 0 to 72 hours, the factory default is
0 hours. Any setting greater than 0 hours will
effectively disable the Daily Pumpout Limit for the
amount of time selected.
• P Pu urrg ge e L Liiq qu uiid d T Te em mp p IIn nh hiib biitt.. Use it to enable or
disable the inhibit feature that prevents purge
pump-out if the sensed purge liquid temperature is
less than the pump-out inhibit value.
• P Pu urrg ge e L Liiq qu uiid d T Te em mp pe erra attu urre e L Liim miitt.. Use it to define
the setpoint for the Purge Liquid Temp Inhibit
feature. If the sensed chiller refrigerant temperature
is below this value, pump-out will not be allowed.
The allowable range is 32°F (0.0°C) to 50°F (10.0°C).
Factory default is 40°F (4.4°C).
Manual Control Settings
The manual control settings that affect purge operation
are as follows:
• P Pu urrg ge e E Ex xh ha au usstt C Ciirrccu uiitt T Te esstt.. On/Off, Auto/On.
Factory default is Off. If set to On, the system
initiates a 30-second non-condensable pumpout
cycle. This setting can be used to check exhaust
circuit components.
• P Pu urrg ge e R Re eg ge en n C Cy ycclle e.. On/Off, Auto/On. Factory
default is Off. Use this setting to manually start a
carbon regeneration cycle.
N No otte e:: This setting is also accessible from the purge
component screen of the Tracer ® AdaptiView™
display; refer to Operations Guide: Tracer
AdaptiView Display for Water-Cooled CenTraVac
Chillers
(CTV-SVU01*-EN).
Alarms
You can view and reset diagnostics from the Alarms
screen of the Tracer® AdaptiView™ display. For more
information about the display, refer to CTV-SVU01*-
EN. For information about troubleshooting using purge
diagnostics, see
“Troubleshooting,” p. 28 .
O Op pe erra atto orr IIn ntte errffa acce e