RLC-SVU01B-E4
7
EasyView Interface
Auto LED
The Auto LED is used to indicate the
position of the AUTO/STOP keys as
though they were a physical toggle
switch. When the AUTO key is
depressed, the Auto LED will be lit. If
the unit cannot enter the Auto mode,
that information will be conveyed by
the lighting of either the diagnostic
LED or the interlock LED. When the
STOP key is depressed, the Auto LED
will extinguish.
Set Point LED
The Set Point
LED is on solid when the display is
showing “Evaporator Leaving-Water
Set Point.”
Interlock LED
The interlock LED flashes when there
is an interlock condition.
Interlock is used to indicate that the
machine is prevented from running,
due to an external status that the
operator could probably correct, and
is not related to a chiller or
component failure. The interlock
conditions for RTAC are as follows:
Interlock Condition
Code
No Chilled-Water Flow
ED
External Auto/Stop
100
Low condenser start
inhibit
200
BAS Auto/Stop
300
Low-Ambient Start Inhibit
200
1
BAS here and elsewhere in this manual refers
to the Trane Tracer™ Equipment Controller.
The interlock LED will stop flashing
when the condition that prevents
machine operation is corrected. No
reset is required.
Service LED
The service LED flashes when there
is a diagnostic that is
not an interlock
condition.
This is the standard diagnostic
indication of the machine.
Contact a
qualified service agency to correct
the problem.
Before calling, press
the (+) and (-) keys simultaneously to
determine the diagnostic code.
Record this code and report it to the
service agency. If you suspect that a
nuisance trip has occurred, the
diagnostic can be reset. (See section
on diagnostic reset.)
Inputs:
Increment Key (+)
Pressing the increment key while the
set point light is off will cause it to
turn on continuously and display the
Evaporator Leaving-Water
Temperature Set Point for three
seconds.
Pressing the increment key while the
Set Point light is on will increase it
by 0.1 degree (F or C).
Holding the increment key down will
increase it repeatedly at a rate of
5°F/sec [2.77°C/sec] until the Set
Point is equal to the Evaporator
Leaving-Water Set Point machine
maximum
Decrement Key (-)
Pressing the decrement key while
the set point light is off will cause it
to turn on continuously and the
display will display the Evaporator
Leaving-Water Temperature.
Pressing the decrement key while
the Set Point light is on will cause
the Set Point to decrease by 0.1
degree (F or C).
Holding the decrement key down will
decrease the set point repeatedly at
a rate of 2°F/sec [0.56°C/sec] until the
set point is equal to the Evaporator
Leaving-Water Set Point relative
minimum.
AUTO Key ( | )
Pressing the AUTO key will send a
request to the chiller to turn on. If no
other device or condition is
preventing the chiller from starting
and
there is a need to cool, the
chiller will attempt a start. (See Auto
LED and diagnostic reset for further
description.)
STOP Key (O)
Pressing the STOP key will send a
request to the chiller to stop. The
chiller will then begin the shutdown
sequence and the Auto LED will
extinguish.
