Page 30
– Bulletin 100-50-9.1
6.3
SELF-CONTAINED MULTIPLE EVAPORATOR WITH 2 EEVS – CONFIGURATION C
The S3C case controller is capable of controlling and monitoring single temperature, multiple evaporator self-contained
refrigerated fixtures. In this scenario, one S3C case controller and one S3C valve module are required. The S3C case
controller will control all case functions as well as take all the desired sensor inputs for one evaporator and drive EEV1. The
S3C valve module will take all the desired sensor inputs for the second evaporator as well as drive EEV2. The typical control
method is to allow the EEV to regulate superheat. The controller will pulse the optional liquid line solenoid and open/close
the EEV to control case temperature using the cut-in/cut-out method. The liquid line solenoid (LLS) is optional since flow
may be stopped by closing the EEVs.
To configure the S3C control package for Configuration C
shown above, follow these directions:
If the controller has not been factory set, then upon initial
start-up, the controller will be in set-up mode and the
screen will display
(for self-contained case).
1. Press the
SET
button, then use
▲▼
buttons to scroll
to
e
; press
SET.
This will configure the controller to
support a self-contained case.
2. Press the
SET
button when
(Rack Identifier)
is displayed. Use the
▲▼
buttons to configure the 4
character Rack Identifier.
Note: Push
▲
button for
numeric,
▼
for alpha characters.
When satisfied
with each digit, press the
SET
button to go to the next
digit. Pressing
SET
multiple times will move to the next
parameter.
3. Press the
SET
button when
ud
(Line-up Identifier)
is displayed. Use the
▲▼
buttons to configure the 4
character Line-up Identifier.
Note: Push
▲
button for
numeric,
▼
for alpha characters.
When satisfied
with each digit, press the
SET
button to go to the next
digit. Pressing
SET
multiple times will move to the next
parameter.
4. Press the
SET
button when
d
(Case Identifier)
is displayed. Use the
▲▼
buttons to configure the 4
character Case Identifier.
Note: Push
▲
button for
numeric,
▼
for alpha characters.
When satisfied
with each digit, press the
SET
button to go to the next
digit. Pressing
SET
multiple times will move to the next
parameter.
5. Press the
SET
button when
(Application Type)
is displayed. Use
▲
button and scroll to
(Single
Temperature Case); press
SET.
6. Press the
SET
button when
(Local Stepper Valve
Configuration) is displayed. Use
▲
button to scroll to
(Electronic Expansion Valve); press
SET.
This is the
valve that is attached to the main S3C Case Controller.
7. Press the
SET
button when
(Expansion Valve
Type) is displayed. Use
▲▼
buttons to choose the
Expansion Valve Type based on the below chart; press
SET.
Display
Meaning
u
Pulse Width Modulation Valve
5
500 Step Valve
1596
1596 Step Valve
25
2500 Step Valve
3193
3193 Step Valve
6386
6386 Step Valve
u
Custom Stepper Valve (See Section 11)
EEV 1
EEV 2
Compressor Suction
Liquid
Liquid Line
Solenoid
(optional)
SELF-CONTAINED MULTIPLE EVAPORATOR WITH 2 EEVS – CONFIGURATION C
